From 266bbb6bf5ccc14b8cb1e842eed696e9316e16d8 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 7 Jun 2026 19:33:53 -0300
Subject: [PATCH 01/43] Se actualizaron todas las dependencias, se incluye node
 22

---
 .github/workflows/desktop-release.yml         |   12 +-
 apps/desktop/package.json                     |   18 +-
 apps/desktop/src-tauri/Cargo.lock             |  220 +-
 apps/web/package.json                         |   18 +-
 apps/web/src/AppHeader.vue                    |    2 +-
 env.d.ts                                      |    2 +
 package.json                                  |   14 +-
 packages/core/package.json                    |   12 +-
 packages/core/src/graph.ts                    |   10 +-
 packages/core/src/validation.ts               |   18 +-
 packages/file-io/package.json                 |   12 +-
 packages/jff/package.json                     |   14 +-
 packages/simulator/package.json               |   12 +-
 packages/ui/package.json                      |   10 +-
 packages/ui/src/components/HomePage.vue       |    2 +-
 packages/ui/src/components/InspectorPanel.vue |    2 +-
 .../ui/src/components/SimulationControls.vue  |    2 +-
 packages/ui/src/components/ThemeToggle.vue    |    2 +-
 packages/ui/src/components/Toolbar.vue        |    2 +-
 packages/ui/src/index.ts                      |    2 +-
 pnpm-lock.yaml                                | 2913 ++++++-----------
 21 files changed, 1270 insertions(+), 2029 deletions(-)

diff --git a/.github/workflows/desktop-release.yml b/.github/workflows/desktop-release.yml
index a3033b3..2af7a52 100644
--- a/.github/workflows/desktop-release.yml
+++ b/.github/workflows/desktop-release.yml
@@ -32,13 +32,13 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Enable pnpm
-        uses: pnpm/action-setup@v4
+        uses: pnpm/action-setup@v6
 
       - name: Set up Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 22
           cache: pnpm
@@ -59,7 +59,7 @@ jobs:
         run: pnpm tauri build ${{ matrix.args }}
 
       - name: Upload native installers
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: jauto-${{ matrix.label }}
           if-no-files-found: error
@@ -79,10 +79,10 @@ jobs:
       RELEASE_TAG: ${{ github.event_name == 'workflow_dispatch' && inputs.release_tag || github.ref_name }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Download native installers
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           path: release-assets
 
diff --git a/apps/desktop/package.json b/apps/desktop/package.json
index 120d2fd..a81173e 100644
--- a/apps/desktop/package.json
+++ b/apps/desktop/package.json
@@ -12,17 +12,17 @@
   },
   "dependencies": {
     "@jauto/core": "workspace:*",
-    "@jauto/ui": "workspace:*",
     "@jauto/file-io": "workspace:*",
-    "@tauri-apps/api": "^2",
-    "vue": "^3",
-    "pinia": "^3"
+    "@jauto/ui": "workspace:*",
+    "@tauri-apps/api": "^2.11.0",
+    "pinia": "^3.0.4",
+    "vue": "^3.5.35"
   },
   "devDependencies": {
-    "@tauri-apps/cli": "^2",
-    "@vitejs/plugin-vue": "^5",
-    "vite": "^6",
-    "typescript": "^5.8",
-    "vue-tsc": "^2"
+    "@tauri-apps/cli": "^2.11.2",
+    "@vitejs/plugin-vue": "^6.0.7",
+    "typescript": "^6.0.3",
+    "vite": "^8.0.16",
+    "vue-tsc": "^3.3.3"
   }
 }
diff --git a/apps/desktop/src-tauri/Cargo.lock b/apps/desktop/src-tauri/Cargo.lock
index 59b22a3..7250c10 100644
--- a/apps/desktop/src-tauri/Cargo.lock
+++ b/apps/desktop/src-tauri/Cargo.lock
@@ -253,9 +253,9 @@ checksum = "1505bd5d3d116872e7271a6d4e16d81d0c8570876c8de68093a09ac269d8aac0"
 
 [[package]]
 name = "autocfg"
-version = "1.5.0"
+version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
+checksum = "f2032f911046de80f0a198e0901378627c33f59ea0ac00e363d481118bd70a53"
 
 [[package]]
 name = "base64"
@@ -292,9 +292,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bitflags"
-version = "2.11.1"
+version = "2.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4512299f36f043ab09a583e57bceb5a5aab7a73db1805848e8fef3c9e8c78b3"
+checksum = "b4388bee8683e3d04af747c73422af53102d2bd24d9eadb6cbc100baef4b43f8"
 dependencies = [
  "serde_core",
 ]
@@ -332,9 +332,9 @@ dependencies = [
 
 [[package]]
 name = "brotli"
-version = "8.0.2"
+version = "8.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4bd8b9603c7aa97359dbd97ecf258968c95f3adddd6db2f7e7a5bef101c84560"
+checksum = "8119e4516436f5708bbc474a9d395bf12f1b5395e93a92a56e647ac3388c8610"
 dependencies = [
  "alloc-no-stdlib",
  "alloc-stdlib",
@@ -343,9 +343,9 @@ dependencies = [
 
 [[package]]
 name = "brotli-decompressor"
-version = "5.0.0"
+version = "5.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "874bb8112abecc98cbd6d81ea4fa7e94fb9449648c93cc89aa40c81c24d7de03"
+checksum = "5962523e1b92ce1b5e793d9169b9943eece10d39f62550bc04bb605d75b94924"
 dependencies = [
  "alloc-no-stdlib",
  "alloc-stdlib",
@@ -362,9 +362,9 @@ dependencies = [
 
 [[package]]
 name = "bumpalo"
-version = "3.20.2"
+version = "3.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d20789868f4b01b2f2caec9f5c4e0213b41e3e5702a50157d699ae31ced2fcb"
+checksum = "72f5acc6cb2ba439de613abc23857ec3d78374d8ed5ac84e9d11336e87da8649"
 
 [[package]]
 name = "bytemuck"
@@ -393,7 +393,7 @@ version = "0.18.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ca26ef0159422fb77631dc9d17b102f253b876fe1586b03b803e63a309b4ee2"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "cairo-sys-rs",
  "glib",
  "libc",
@@ -456,9 +456,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.2.62"
+version = "1.2.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1dce859f0832a7d088c4f1119888ab94ef4b5d6795d1ce05afb7fe159d79f98"
+checksum = "556e016178bb5662a08681bbe0f00f8e17631781a4dfc8c45e466e4b185ec27f"
 dependencies = [
  "find-msvc-tools",
  "shlex",
@@ -499,9 +499,9 @@ checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
 
 [[package]]
 name = "chrono"
-version = "0.4.44"
+version = "0.4.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c673075a2e0e5f4a1dde27ce9dee1ea4558c7ffe648f576438a20ca1d2acc4b0"
+checksum = "1aa79e62e7697b8e29b513a68abacf485adcd1fe8284a4316c5ae868e6633327"
 dependencies = [
  "iana-time-zone",
  "num-traits",
@@ -560,7 +560,7 @@ version = "0.25.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "064badf302c3194842cf2c5d61f56cc88e54a759313879cdf03abdd27d0c3b97"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "core-foundation",
  "core-graphics-types",
  "foreign-types",
@@ -573,7 +573,7 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3d44a101f213f6c4cdc1853d4b78aef6db6bdfa3468798cc1d9912f4735013eb"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "core-foundation",
  "libc",
 ]
@@ -773,7 +773,7 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e0e367e4e7da84520dedcac1901e4da967309406d1e51017ae1abfb97adbd38"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "block2",
  "libc",
  "objc2",
@@ -781,9 +781,9 @@ dependencies = [
 
 [[package]]
 name = "displaydoc"
-version = "0.2.5"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97369cbbc041bc366949bc74d34658d6cda5621039731c6310521892a3a20ae0"
+checksum = "1ac70aa55017e108007fbaf5aa0f54b021c98f92ff8af59d42eda9da96e3dd4f"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1351,7 +1351,7 @@ version = "0.18.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "233daaf6e83ae6a12a52055f568f9d7cf4671dabb78ff9560ab6da230ce00ee5"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "futures-channel",
  "futures-core",
  "futures-executor",
@@ -1518,9 +1518,9 @@ dependencies = [
 
 [[package]]
 name = "http"
-version = "1.4.0"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3ba2a386d7f85a81f119ad7498ebe444d2e22c2af0b86b069416ace48b3311a"
+checksum = "8be7462df143984c4598a256ef469b251d7d7f9e271135073e78fc535414f3d0"
 dependencies = [
  "bytes",
  "itoa",
@@ -1557,9 +1557,9 @@ checksum = "6dbf3de79e51f3d586ab4cb9d5c3e2c14aa28ed23d180cf89b4df0454a69cc87"
 
 [[package]]
 name = "hyper"
-version = "1.9.0"
+version = "1.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6299f016b246a94207e63da54dbe807655bf9e00044f73ded42c3ac5305fbcca"
+checksum = "55281c53a1894c864990125767da440a4e630446785086f52523b20033b74498"
 dependencies = [
  "atomic-waker",
  "bytes",
@@ -1870,9 +1870,9 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.98"
+version = "0.3.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "67df7112613f8bfd9150013a0314e196f4800d3201ae742489d999db2f979f08"
+checksum = "142bc4740e452c1e57ade0cbc129f139c9093e354346f0872ef985f4f5cf5f11"
 dependencies = [
  "cfg-if",
  "futures-util",
@@ -1908,7 +1908,7 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b750dcadc39a09dbadd74e118f6dd6598df77fa01df0cfcdc52c28dece74528a"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "serde",
  "unicode-segmentation",
 ]
@@ -1980,9 +1980,9 @@ dependencies = [
 
 [[package]]
 name = "libredox"
-version = "0.1.16"
+version = "0.1.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e02f3bb43d335493c96bf3fd3a321600bf6bd07ed34bc64118e9293bdffea46c"
+checksum = "f02ab6bace2054fb888a3c16f990117b579d14a3088e472d63c6011fa185c9d3"
 dependencies = [
  "libc",
 ]
@@ -2010,9 +2010,9 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.29"
+version = "0.4.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5e5032e24019045c762d3c0f28f5b6b8bbf38563a65908389bf7978758920897"
+checksum = "953f07c43838f8e6f9758cab68bf5bed85465e7587ebe0b823f1bcd81978ad3a"
 
 [[package]]
 name = "markup5ever"
@@ -2027,9 +2027,9 @@ dependencies = [
 
 [[package]]
 name = "memchr"
-version = "2.8.0"
+version = "2.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8ca58f447f06ed17d5fc4043ce1b10dd205e060fb3ce5b979b8ed8e59ff3f79"
+checksum = "6b947ae49db0d222b1dbc6b113ce7248a3fc3a6ca21b696717bfc000ba4484d8"
 
 [[package]]
 name = "memoffset"
@@ -2058,9 +2058,9 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "1.2.0"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50b7e5b27aa02a74bac8c3f23f448f8d87ff11f92d3aac1a6ed369ee08cc56c1"
+checksum = "02bd0af71c67b473010cbbc60715ee815645a4dc942899111f494b4b737d6fda"
 dependencies = [
  "libc",
  "wasi",
@@ -2069,9 +2069,9 @@ dependencies = [
 
 [[package]]
 name = "muda"
-version = "0.19.1"
+version = "0.19.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ae8844f63b5b118e334e205585b8c5c17b984121dbdb179d44aeb087ffad3cb"
+checksum = "47a2e3dff89cd322c66647942668faee0a2b1f88ea6cbb4d374b4a8d7e92528c"
 dependencies = [
  "crossbeam-channel",
  "dpi",
@@ -2094,7 +2094,7 @@ version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c3f42e7bbe13d351b6bead8286a43aac9534b82bd3cc43e47037f012ebfd62d4"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "jni-sys 0.3.1",
  "log",
  "ndk-sys",
@@ -2171,7 +2171,7 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d49e936b501e5c5bf01fda3a9452ff86dc3ea98ad5f283e1455153142d97518c"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "block2",
  "objc2",
  "objc2-core-foundation",
@@ -2184,7 +2184,7 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "73ad74d880bb43877038da939b7427bba67e9dd42004a18b809ba7d87cee241c"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "objc2",
  "objc2-foundation",
 ]
@@ -2205,7 +2205,7 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2a180dd8642fa45cdb7dd721cd4c11b1cadd4929ce112ebd8b9f5803cc79d536"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "dispatch2",
  "objc2",
 ]
@@ -2216,7 +2216,7 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e022c9d066895efa1345f8e33e584b9f958da2fd4cd116792e15e07e4720a807"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "dispatch2",
  "objc2",
  "objc2-core-foundation",
@@ -2249,7 +2249,7 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0cde0dfb48d25d2b4862161a4d5fcc0e3c24367869ad306b0c9ec0073bfed92d"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "objc2",
  "objc2-core-foundation",
  "objc2-core-graphics",
@@ -2276,7 +2276,7 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e3e0adef53c21f888deb4fa59fc59f7eb17404926ee8a6f59f5df0fd7f9f3272"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "block2",
  "objc2",
  "objc2-core-foundation",
@@ -2288,7 +2288,7 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "180788110936d59bab6bd83b6060ffdfffb3b922ba1396b312ae795e1de9d81d"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "objc2",
  "objc2-core-foundation",
 ]
@@ -2299,7 +2299,7 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "96c1358452b371bf9f104e21ec536d37a650eb10f7ee379fff67d2e08d537f1f"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "objc2",
  "objc2-core-foundation",
  "objc2-foundation",
@@ -2311,7 +2311,7 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d87d638e33c06f577498cbcc50491496a3ed4246998a7fbba7ccb98b1e7eab22"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "block2",
  "objc2",
  "objc2-cloud-kit",
@@ -2342,7 +2342,7 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b2e5aaab980c433cf470df9d7af96a7b46a9d892d521a2cbbb2f8a4c16751e7f"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "block2",
  "objc2",
  "objc2-app-kit",
@@ -2540,7 +2540,7 @@ version = "0.18.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "60769b8b31b2a9f263dae2776c37b1b28ae246943cf719eb6946a1db05128a61"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "crc32fast",
  "fdeflate",
  "flate2",
@@ -2633,7 +2633,7 @@ version = "3.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e67ba7e9b2b56446f1d419b1d807906278ffa1a658a8a5d8a39dcb1f5a78614f"
 dependencies = [
- "toml_edit 0.25.11+spec-1.1.0",
+ "toml_edit 0.25.12+spec-1.1.0",
 ]
 
 [[package]]
@@ -2740,7 +2740,7 @@ version = "0.5.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed2bf2547551a7053d6fdfafda3f938979645c44812fbfcda098faae3f1a362d"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
 ]
 
 [[package]]
@@ -2805,9 +2805,9 @@ checksum = "dc897dd8d9e8bd1ed8cdad82b5966c3e0ecae09fb1907d58efaa013543185d0a"
 
 [[package]]
 name = "reqwest"
-version = "0.13.3"
+version = "0.13.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62e0021ea2c22aed41653bc7e1419abb2c97e038ff2c33d0e1309e49a97deec0"
+checksum = "219c5811de6525e5416c7d5d53bb656d3afdbc6c5af816e0802bcfa42dbdc1c3"
 dependencies = [
  "base64 0.22.1",
  "bytes",
@@ -2882,7 +2882,7 @@ version = "1.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b6fe4565b9518b83ef4f91bb47ce29620ca828bd32cb7e408f0062e9930ba190"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "errno",
  "libc",
  "linux-raw-sys",
@@ -2973,7 +2973,7 @@ version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c5d9c0c92a92d33f08817311cf3f2c29a3538a8240e94a6a3c622ce652d7e00c"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "cssparser",
  "derive_more",
  "log",
@@ -3051,9 +3051,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.149"
+version = "1.0.150"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83fc039473c5595ace860d8c4fafa220ff474b3fc6bfdb4293327f1a37e94d86"
+checksum = "e8014e44b4736ed0538adeecded0fce2a272f22dc9578a7eb6b2d9993c74cfb9"
 dependencies = [
  "itoa",
  "memchr",
@@ -3093,9 +3093,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with"
-version = "3.20.0"
+version = "3.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e72c1c2cb7b223fafb600a619537a871c2818583d619401b785e7c0b746ccde2"
+checksum = "76a5c54c7310e7b8b9577c286d7e399ddd876c3e12b3ed917a8aabc4b96e9e8c"
 dependencies = [
  "base64 0.22.1",
  "bs58",
@@ -3113,9 +3113,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with_macros"
-version = "3.20.0"
+version = "3.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b90c488738ecb4fb0262f41f43bc40efc5868d9fb744319ddf5f5317f417bfac"
+checksum = "84d57bc0c8b9a17920c178daa6bb924850d54a9c97ab45194bb8c17ad66bb660"
 dependencies = [
  "darling",
  "proc-macro2",
@@ -3167,9 +3167,9 @@ dependencies = [
 
 [[package]]
 name = "shlex"
-version = "1.3.0"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
+checksum = "f8fadd59c855ef2080decdef8ff161eb6661b86933c9d82e5ba29dc602a55aba"
 
 [[package]]
 name = "signal-hook-registry"
@@ -3207,9 +3207,9 @@ checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
 
 [[package]]
 name = "socket2"
-version = "0.6.3"
+version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a766e1110788c36f4fa1c2b71b387a7815aa65f88ce0229841826633d93723e"
+checksum = "52d1cfed4120b4d927bf7c0f86d2087a4a7d6027c906d9f9d525a80573b9be51"
 dependencies = [
  "libc",
  "windows-sys 0.61.2",
@@ -3366,11 +3366,11 @@ dependencies = [
 
 [[package]]
 name = "tao"
-version = "0.35.2"
+version = "0.35.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a33f7f9e486ade65fcf1e45c440f9236c904f5c1002cdc7fc6ae582777345ce4"
+checksum = "d1c93047acf68669466a34690ac58cca7010bd1b201e1ec86f1fd0a75d3dd4a9"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "block2",
  "core-foundation",
  "core-graphics",
@@ -3875,9 +3875,9 @@ dependencies = [
 
 [[package]]
 name = "toml_edit"
-version = "0.25.11+spec-1.1.0"
+version = "0.25.12+spec-1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b59c4d22ed448339746c59b905d24568fcbb3ab65a500494f7b8c3e97739f2b"
+checksum = "d2153edc6955a6c354fad8f5efd38b6a8769bdccf9fe50f8e1329f81b0baa5d7"
 dependencies = [
  "indexmap 2.14.0",
  "toml_datetime 1.1.1+spec-1.1.0",
@@ -3921,7 +3921,7 @@ version = "0.6.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4cfcf7e2740e6fc6d4d688b4ef00650406bb94adf4731e43c096c3a19fe40840"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "bytes",
  "futures-util",
  "http",
@@ -4012,9 +4012,9 @@ checksum = "bc7d623258602320d5c55d1bc22793b57daff0ec7efc270ea7d55ce1d5f5471c"
 
 [[package]]
 name = "typenum"
-version = "1.20.0"
+version = "1.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "40ce102ab67701b8526c123c1bab5cbe42d7040ccfd0f64af1a385808d2f43de"
+checksum = "b6f5e870be6c3b371b77fe0ee0bafb859fa4964b4404c27de1d380043c4dda20"
 
 [[package]]
 name = "uds_windows"
@@ -4076,9 +4076,9 @@ checksum = "e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75"
 
 [[package]]
 name = "unicode-segmentation"
-version = "1.13.2"
+version = "1.13.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9629274872b2bfaf8d66f5f15725007f635594914870f65218920345aa11aa8c"
+checksum = "c6f5d3c3b1bf09027a88a6bc961fc00497d651009560b5463668dc81b0fa87a8"
 
 [[package]]
 name = "unicode-xid"
@@ -4131,9 +4131,9 @@ checksum = "b6c140620e7ffbb22c2dee59cafe6084a59b5ffc27a8859a5f0d494b5d52b6be"
 
 [[package]]
 name = "uuid"
-version = "1.23.1"
+version = "1.23.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ddd74a9687298c6858e9b88ec8935ec45d22e8fd5e6394fa1bd4e99a87789c76"
+checksum = "d258b83ceec21034727ecee8c382cfa6c3e133699b0742c64571814fb420c9f7"
 dependencies = [
  "getrandom 0.4.2",
  "js-sys",
@@ -4218,9 +4218,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.121"
+version = "0.2.122"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49ace1d07c165b0864824eee619580c4689389afa9dc9ed3a4c75040d82e6790"
+checksum = "3ed04576f974d2b2fba0f38c51dbc5518011e38c36bf1143164be765528fd409"
 dependencies = [
  "cfg-if",
  "once_cell",
@@ -4231,9 +4231,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-futures"
-version = "0.4.71"
+version = "0.4.72"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96492d0d3ffba25305a7dc88720d250b1401d7edca02cc3bcd50633b424673b8"
+checksum = "9473dbd2991ae90b6291c3c32c30c6187ac49aa32f9905d1cce280ec1e110b0f"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -4241,9 +4241,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.121"
+version = "0.2.122"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e68e6f4afd367a562002c05637acb8578ff2dea1943df76afb9e83d177c8578"
+checksum = "916151b09da36bd82f6615cbf3a419e2f0ba23a03c6160e8e92eb6bd4aa1dec6"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -4251,9 +4251,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.121"
+version = "0.2.122"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d95a9ec35c64b2a7cb35d3fead40c4238d0940c86d107136999567a4703259f2"
+checksum = "299047362ccbfce148b67ab7e73349f77748e00c8296f9542adfad2ad82c5c5e"
 dependencies = [
  "bumpalo",
  "proc-macro2",
@@ -4264,9 +4264,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.121"
+version = "0.2.122"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4e0100b01e9f0d03189a92b96772a1fb998639d981193d7dbab487302513441"
+checksum = "9a929b2c61f11ba3e9bc35b50c1f25cb38e0e892c0c231ae2b8cf78d5dad4437"
 dependencies = [
  "unicode-ident",
 ]
@@ -4312,7 +4312,7 @@ version = "0.244.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "47b807c72e1bac69382b3a6fb3dbe8ea4c0ed87ff5629b8685ae6b9a611028fe"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "hashbrown 0.15.5",
  "indexmap 2.14.0",
  "semver",
@@ -4338,7 +4338,7 @@ version = "0.31.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "645c7c96bb74690c3189b5c9cb4ca1627062bb23693a4fad9d8c3de958260144"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "rustix",
  "wayland-backend",
  "wayland-scanner",
@@ -4350,7 +4350,7 @@ version = "0.32.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "563a85523cade2429938e790815fd7319062103b9f4a2dc806e9b53b95982d8f"
 dependencies = [
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "wayland-backend",
  "wayland-client",
  "wayland-scanner",
@@ -4380,9 +4380,9 @@ dependencies = [
 
 [[package]]
 name = "web-sys"
-version = "0.3.98"
+version = "0.3.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4b572dff8bcf38bad0fa19729c89bb5748b2b9b1d8be70cf90df697e3a8f32aa"
+checksum = "6d621441cfc37b84979402712047321980c178f299193a3589d05b99e8763436"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -4929,7 +4929,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d66ea20e9553b30172b5e831994e35fbde2d165325bec84fc43dbf6f4eb9cb2"
 dependencies = [
  "anyhow",
- "bitflags 2.11.1",
+ "bitflags 2.13.0",
  "indexmap 2.14.0",
  "log",
  "serde",
@@ -5032,9 +5032,9 @@ dependencies = [
 
 [[package]]
 name = "yoke"
-version = "0.8.2"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "abe8c5fda708d9ca3df187cae8bfb9ceda00dd96231bed36e445a1a48e66f9ca"
+checksum = "709fe23a0424b6a435d82152b1bd3fdfb0833487d5fa90d05d42762a9891fef5"
 dependencies = [
  "stable_deref_trait",
  "yoke-derive",
@@ -5055,9 +5055,9 @@ dependencies = [
 
 [[package]]
 name = "zbus"
-version = "5.15.0"
+version = "5.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3bcbf15c8708d7fc1be0c993622e0a5cbd5e8b52bfa40afa4c3e0cd8d724ac1"
+checksum = "eee682d202a77e4a9f3b2c2bdf48a7b28af5c08c34ddf66f98c93e5e39464285"
 dependencies = [
  "async-broadcast",
  "async-executor",
@@ -5090,9 +5090,9 @@ dependencies = [
 
 [[package]]
 name = "zbus_macros"
-version = "5.15.0"
+version = "5.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51fa5406ad9175a8c825a931f8cf347116b531b3634fcb0b627c290f1f2516ff"
+checksum = "adf1bd45a81a103745b1757754762a26e8cd01e4532e4d6c8ec431624b80d1d6"
 dependencies = [
  "proc-macro-crate 3.5.0",
  "proc-macro2",
@@ -5116,18 +5116,18 @@ dependencies = [
 
 [[package]]
 name = "zerocopy"
-version = "0.8.48"
+version = "0.8.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eed437bf9d6692032087e337407a86f04cd8d6a16a37199ed57949d415bd68e9"
+checksum = "3b065d4f0e55f82fae73202e189638116a87c55ab6b8e6c2721e13dd9d854ad1"
 dependencies = [
  "zerocopy-derive",
 ]
 
 [[package]]
 name = "zerocopy-derive"
-version = "0.8.48"
+version = "0.8.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70e3cd084b1788766f53af483dd21f93881ff30d7320490ec3ef7526d203bad4"
+checksum = "0b631b19d36a892ab55420c92dbc83ccd79274f25be714855d3074aa71cab639"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -5196,9 +5196,9 @@ checksum = "b8848ee67ecc8aedbaf3e4122217aff892639231befc6a1b58d29fff4c2cabaa"
 
 [[package]]
 name = "zvariant"
-version = "5.11.0"
+version = "5.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c1567a6ec68df868cbbfde844cfc6d81649fe5109a62b116b19fabd53e618ee"
+checksum = "a192a0bde63360d77a7523c833d4b4ce6070a927e2c53246e4c540b1a3e27be0"
 dependencies = [
  "endi",
  "enumflags2",
@@ -5211,9 +5211,9 @@ dependencies = [
 
 [[package]]
 name = "zvariant_derive"
-version = "5.11.0"
+version = "5.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c7d5b780599bbde114e39d9a0799577fad1ced5105d38515745f7b3099d8ceda"
+checksum = "90bc6cde9c01c511074be97f7ccb6c19d0da89e3f8662e812e999dcfd4638737"
 dependencies = [
  "proc-macro-crate 3.5.0",
  "proc-macro2",
@@ -5224,9 +5224,9 @@ dependencies = [
 
 [[package]]
 name = "zvariant_utils"
-version = "3.3.1"
+version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d464f5733ffa07a3164d656f18533caace9d0638596721355d73256a410d691"
+checksum = "1e8535915cfa75547e559d8c68e8139909a4aeee076831e4ef7fc59d8172c4d6"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/apps/web/package.json b/apps/web/package.json
index 9a51a3c..d69a5aa 100644
--- a/apps/web/package.json
+++ b/apps/web/package.json
@@ -12,17 +12,17 @@
   },
   "dependencies": {
     "@jauto/core": "workspace:*",
-    "@jauto/ui": "workspace:*",
     "@jauto/file-io": "workspace:*",
-    "lucide-vue-next": "^1",
-    "vue": "^3",
-    "pinia": "^3",
-    "vue-router": "^4"
+    "@jauto/ui": "workspace:*",
+    "@lucide/vue": "^1.17.0",
+    "pinia": "^3.0.4",
+    "vue": "^3.5.35",
+    "vue-router": "^5.1.0"
   },
   "devDependencies": {
-    "@vitejs/plugin-vue": "^5",
-    "vite": "^6",
-    "typescript": "^5.8",
-    "vue-tsc": "^2"
+    "@vitejs/plugin-vue": "^6.0.7",
+    "typescript": "^6.0.3",
+    "vite": "^8.0.16",
+    "vue-tsc": "^3.3.3"
   }
 }
diff --git a/apps/web/src/AppHeader.vue b/apps/web/src/AppHeader.vue
index d6ee607..64d8bb8 100644
--- a/apps/web/src/AppHeader.vue
+++ b/apps/web/src/AppHeader.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { ref, nextTick } from 'vue';
-import { Pencil, Save } from 'lucide-vue-next';
+import { Pencil, Save } from '@lucide/vue';
 import { useDocumentStore, useHistoryStore, useSimulationStore, ThemeToggle } from '@jauto/ui';
 import type { AutomatonKind } from '@jauto/core';
 import { WebFileService, openAutomaton, saveAutomaton } from '@jauto/file-io';
diff --git a/env.d.ts b/env.d.ts
index fc781e8..812312c 100644
--- a/env.d.ts
+++ b/env.d.ts
@@ -2,3 +2,5 @@ declare module '*.png' {
   const src: string;
   export default src;
 }
+
+declare module '*.css';
diff --git a/package.json b/package.json
index 1890e7f..a12042f 100644
--- a/package.json
+++ b/package.json
@@ -15,15 +15,15 @@
     "format": "prettier --write ."
   },
   "devDependencies": {
-    "@eslint/js": "^9.39.4",
-    "eslint": "^9.39.4",
+    "@eslint/js": "^10.0.1",
+    "eslint": "^10.4.1",
     "prettier": "^3.8.3",
-    "turbo": "^2.9.14",
-    "typescript": "^5.9.3",
-    "typescript-eslint": "^8.59.4",
-    "vitest": "^3.2.4"
+    "turbo": "^2.9.16",
+    "typescript": "^6.0.3",
+    "typescript-eslint": "^8.60.1",
+    "vitest": "^4.1.8"
   },
-  "packageManager": "pnpm@11.1.3",
+  "packageManager": "pnpm@11.5.2",
   "engines": {
     "node": ">=22"
   }
diff --git a/packages/core/package.json b/packages/core/package.json
index 48e3318..22b405a 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -11,7 +11,9 @@
       "import": "./dist/index.js"
     }
   },
-  "files": ["dist"],
+  "files": [
+    "dist"
+  ],
   "scripts": {
     "build": "vite build",
     "dev": "vite build --watch",
@@ -20,9 +22,9 @@
     "lint": "eslint src/"
   },
   "devDependencies": {
-    "vite": "^6",
-    "typescript": "^5.8",
-    "vitest": "^3",
-    "vite-plugin-dts": "^4"
+    "typescript": "^6.0.3",
+    "vite": "^8.0.16",
+    "vite-plugin-dts": "^5.0.2",
+    "vitest": "^4.1.8"
   }
 }
diff --git a/packages/core/src/graph.ts b/packages/core/src/graph.ts
index 3585b4a..26eacb2 100644
--- a/packages/core/src/graph.ts
+++ b/packages/core/src/graph.ts
@@ -1,4 +1,12 @@
-import type { Automaton, AutomatonState, AnyTransition, AnyAutomaton, AutomatonKind, FATransition, PDATransition, TMTransition } from './types';
+import type {
+  Automaton,
+  AutomatonState,
+  AnyTransition,
+  AnyAutomaton,
+  FATransition,
+  PDATransition,
+  TMTransition,
+} from './types';
 
 export function addState<T extends AnyTransition>(
   automaton: Automaton<T>,
diff --git a/packages/core/src/validation.ts b/packages/core/src/validation.ts
index b8ec4f4..35adc71 100644
--- a/packages/core/src/validation.ts
+++ b/packages/core/src/validation.ts
@@ -1,4 +1,10 @@
-import type { AnyAutomaton, AutomatonKind, AutomatonState, FiniteAutomaton, PushdownAutomaton, TuringMachine } from './types';
+import type {
+  AnyAutomaton,
+  AutomatonState,
+  FiniteAutomaton,
+  PushdownAutomaton,
+  TuringMachine,
+} from './types';
 import { getTransitionsFrom } from './graph';
 
 export interface ValidationDiagnostic {
@@ -136,10 +142,16 @@ export function validate(automaton: AnyAutomaton): ValidationDiagnostic[] {
 
   for (const t of automaton.transitions) {
     if (!automaton.states.some((s) => s.id === t.from)) {
-      diagnostics.push({ level: 'error', message: `Transition references missing source state "${t.from}"` });
+      diagnostics.push({
+        level: 'error',
+        message: `Transition references missing source state "${t.from}"`,
+      });
     }
     if (!automaton.states.some((s) => s.id === t.to)) {
-      diagnostics.push({ level: 'error', message: `Transition references missing target state "${t.to}"` });
+      diagnostics.push({
+        level: 'error',
+        message: `Transition references missing target state "${t.to}"`,
+      });
     }
   }
 
diff --git a/packages/file-io/package.json b/packages/file-io/package.json
index d16ec33..e45a222 100644
--- a/packages/file-io/package.json
+++ b/packages/file-io/package.json
@@ -11,7 +11,9 @@
       "import": "./dist/index.js"
     }
   },
-  "files": ["dist"],
+  "files": [
+    "dist"
+  ],
   "scripts": {
     "build": "vite build",
     "dev": "vite build --watch",
@@ -24,9 +26,9 @@
     "@jauto/jff": "workspace:*"
   },
   "devDependencies": {
-    "vite": "^6",
-    "typescript": "^5.8",
-    "vitest": "^3",
-    "vite-plugin-dts": "^4"
+    "typescript": "^6.0.3",
+    "vite": "^8.0.16",
+    "vite-plugin-dts": "^5.0.2",
+    "vitest": "^4.1.8"
   }
 }
diff --git a/packages/jff/package.json b/packages/jff/package.json
index 00292f1..86cf986 100644
--- a/packages/jff/package.json
+++ b/packages/jff/package.json
@@ -11,7 +11,9 @@
       "import": "./dist/index.js"
     }
   },
-  "files": ["dist"],
+  "files": [
+    "dist"
+  ],
   "scripts": {
     "build": "vite build",
     "dev": "vite build --watch",
@@ -21,12 +23,12 @@
   },
   "dependencies": {
     "@jauto/core": "workspace:*",
-    "fast-xml-parser": "^5"
+    "fast-xml-parser": "^5.8.0"
   },
   "devDependencies": {
-    "vite": "^6",
-    "typescript": "^5.8",
-    "vitest": "^3",
-    "vite-plugin-dts": "^4"
+    "typescript": "^6.0.3",
+    "vite": "^8.0.16",
+    "vite-plugin-dts": "^5.0.2",
+    "vitest": "^4.1.8"
   }
 }
diff --git a/packages/simulator/package.json b/packages/simulator/package.json
index 25c4587..9801160 100644
--- a/packages/simulator/package.json
+++ b/packages/simulator/package.json
@@ -11,7 +11,9 @@
       "import": "./dist/index.js"
     }
   },
-  "files": ["dist"],
+  "files": [
+    "dist"
+  ],
   "scripts": {
     "build": "vite build",
     "dev": "vite build --watch",
@@ -23,9 +25,9 @@
     "@jauto/core": "workspace:*"
   },
   "devDependencies": {
-    "vite": "^6",
-    "typescript": "^5.8",
-    "vitest": "^3",
-    "vite-plugin-dts": "^4"
+    "typescript": "^6.0.3",
+    "vite": "^8.0.16",
+    "vite-plugin-dts": "^5.0.2",
+    "vitest": "^4.1.8"
   }
 }
diff --git a/packages/ui/package.json b/packages/ui/package.json
index 9e7fa86..d6c7244 100644
--- a/packages/ui/package.json
+++ b/packages/ui/package.json
@@ -18,16 +18,16 @@
   "dependencies": {
     "@jauto/core": "workspace:*",
     "@jauto/simulator": "workspace:*",
-    "lucide-vue-next": "^1.0.0"
+    "@lucide/vue": "^1.17.0"
   },
   "peerDependencies": {
     "pinia": "^3",
     "vue": "^3"
   },
   "devDependencies": {
-    "pinia": "^3",
-    "typescript": "^5.8",
-    "vue": "^3",
-    "vue-tsc": "^2"
+    "pinia": "^3.0.4",
+    "typescript": "^6.0.3",
+    "vue": "^3.5.35",
+    "vue-tsc": "^3.3.3"
   }
 }
diff --git a/packages/ui/src/components/HomePage.vue b/packages/ui/src/components/HomePage.vue
index 3f6e616..abe722d 100644
--- a/packages/ui/src/components/HomePage.vue
+++ b/packages/ui/src/components/HomePage.vue
@@ -1,7 +1,7 @@
 <script setup lang="ts">
 import type { Component } from 'vue';
 import type { AutomatonKind } from '@jauto/core';
-import { Workflow, Layers, Cpu, FolderOpen } from 'lucide-vue-next';
+import { Workflow, Layers, Cpu, FolderOpen } from '@lucide/vue';
 import ThemeToggle from './ThemeToggle.vue';
 import logoFull from '../assets/logo.png';
 
diff --git a/packages/ui/src/components/InspectorPanel.vue b/packages/ui/src/components/InspectorPanel.vue
index f3c316d..c39e069 100644
--- a/packages/ui/src/components/InspectorPanel.vue
+++ b/packages/ui/src/components/InspectorPanel.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { computed, nextTick, ref, watch } from 'vue';
-import { Check } from 'lucide-vue-next';
+import { Check } from '@lucide/vue';
 import { useDocumentStore } from '../stores/document';
 import { useHistoryStore } from '../stores/history';
 import { UpdateStateCommand, UpdateTransitionCommand } from '@jauto/core';
diff --git a/packages/ui/src/components/SimulationControls.vue b/packages/ui/src/components/SimulationControls.vue
index 5d8a805..6d3aec7 100644
--- a/packages/ui/src/components/SimulationControls.vue
+++ b/packages/ui/src/components/SimulationControls.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { Play, Pause, SkipBack, SkipForward, RotateCcw, Square, Zap } from 'lucide-vue-next';
+import { Play, Pause, SkipBack, SkipForward, RotateCcw, Square, Zap } from '@lucide/vue';
 import { useDocumentStore } from '../stores/document';
 import { useSimulationStore } from '../stores/simulation';
 
diff --git a/packages/ui/src/components/ThemeToggle.vue b/packages/ui/src/components/ThemeToggle.vue
index 1869334..37ab70c 100644
--- a/packages/ui/src/components/ThemeToggle.vue
+++ b/packages/ui/src/components/ThemeToggle.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { Sun, Moon } from 'lucide-vue-next';
+import { Sun, Moon } from '@lucide/vue';
 import { useThemeStore } from '../stores/theme';
 
 const themeStore = useThemeStore();
diff --git a/packages/ui/src/components/Toolbar.vue b/packages/ui/src/components/Toolbar.vue
index b31648c..bd21365 100644
--- a/packages/ui/src/components/Toolbar.vue
+++ b/packages/ui/src/components/Toolbar.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { computed, inject, ref, type Component } from 'vue';
-import { MousePointer2, Circle, MoveRight, Trash2, Undo2, Redo2, Save } from 'lucide-vue-next';
+import { MousePointer2, Circle, MoveRight, Trash2, Undo2, Redo2, Save } from '@lucide/vue';
 import { useDocumentStore, type EditorTool } from '../stores/document';
 import { useHistoryStore } from '../stores/history';
 import { saveDocumentKey } from '../injectionKeys';
diff --git a/packages/ui/src/index.ts b/packages/ui/src/index.ts
index 09ef0cf..da367e3 100644
--- a/packages/ui/src/index.ts
+++ b/packages/ui/src/index.ts
@@ -4,7 +4,7 @@ export { default as AutomatonCanvas } from './components/AutomatonCanvas.vue';
 export { default as Toolbar } from './components/Toolbar.vue';
 export { default as InspectorPanel } from './components/InspectorPanel.vue';
 export { default as ThemeToggle } from './components/ThemeToggle.vue';
-export { ArrowLeft, Pencil, Save } from 'lucide-vue-next';
+export { ArrowLeft, Pencil, Save } from '@lucide/vue';
 
 export { useDocumentStore } from './stores/document';
 export { useHistoryStore } from './stores/history';
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 1335c99..5e5968b 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -15,26 +15,26 @@ importers:
   .:
     devDependencies:
       '@eslint/js':
-        specifier: ^9.39.4
-        version: 9.39.4
+        specifier: ^10.0.1
+        version: 10.0.1(eslint@10.4.1)
       eslint:
-        specifier: ^9.39.4
-        version: 9.39.4
+        specifier: ^10.4.1
+        version: 10.4.1
       prettier:
         specifier: ^3.8.3
         version: 3.8.3
       turbo:
-        specifier: ^2.9.14
-        version: 2.9.14
+        specifier: ^2.9.16
+        version: 2.9.16
       typescript:
-        specifier: ^5.9.3
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
       typescript-eslint:
-        specifier: ^8.59.4
-        version: 8.59.4(eslint@9.39.4)(typescript@5.9.3)
+        specifier: ^8.60.1
+        version: 8.60.1(eslint@10.4.1)(typescript@6.0.3)
       vitest:
-        specifier: ^3.2.4
-        version: 3.2.4
+        specifier: ^4.1.8
+        version: 4.1.8(vite@8.0.16(yaml@2.9.0))
 
   apps/desktop:
     dependencies:
@@ -48,30 +48,30 @@ importers:
         specifier: workspace:*
         version: link:../../packages/ui
       '@tauri-apps/api':
-        specifier: ^2
+        specifier: ^2.11.0
         version: 2.11.0
       pinia:
-        specifier: ^3
-        version: 3.0.4(typescript@5.9.3)(vue@3.5.34(typescript@5.9.3))
+        specifier: ^3.0.4
+        version: 3.0.4(typescript@6.0.3)(vue@3.5.35(typescript@6.0.3))
       vue:
-        specifier: ^3
-        version: 3.5.34(typescript@5.9.3)
+        specifier: ^3.5.35
+        version: 3.5.35(typescript@6.0.3)
     devDependencies:
       '@tauri-apps/cli':
-        specifier: ^2
+        specifier: ^2.11.2
         version: 2.11.2
       '@vitejs/plugin-vue':
-        specifier: ^5
-        version: 5.2.4(vite@6.4.2)(vue@3.5.34(typescript@5.9.3))
+        specifier: ^6.0.7
+        version: 6.0.7(vite@8.0.16(yaml@2.9.0))(vue@3.5.35(typescript@6.0.3))
       typescript:
-        specifier: ^5.8
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
       vite:
-        specifier: ^6
-        version: 6.4.2
+        specifier: ^8.0.16
+        version: 8.0.16(yaml@2.9.0)
       vue-tsc:
-        specifier: ^2
-        version: 2.2.12(typescript@5.9.3)
+        specifier: ^3.3.3
+        version: 3.3.3(typescript@6.0.3)
 
   apps/web:
     dependencies:
@@ -84,46 +84,46 @@ importers:
       '@jauto/ui':
         specifier: workspace:*
         version: link:../../packages/ui
-      lucide-vue-next:
-        specifier: ^1
-        version: 1.0.0(vue@3.5.34(typescript@5.9.3))
+      '@lucide/vue':
+        specifier: ^1.17.0
+        version: 1.17.0(vue@3.5.35(typescript@6.0.3))
       pinia:
-        specifier: ^3
-        version: 3.0.4(typescript@5.9.3)(vue@3.5.34(typescript@5.9.3))
+        specifier: ^3.0.4
+        version: 3.0.4(typescript@6.0.3)(vue@3.5.35(typescript@6.0.3))
       vue:
-        specifier: ^3
-        version: 3.5.34(typescript@5.9.3)
+        specifier: ^3.5.35
+        version: 3.5.35(typescript@6.0.3)
       vue-router:
-        specifier: ^4
-        version: 4.6.4(vue@3.5.34(typescript@5.9.3))
+        specifier: ^5.1.0
+        version: 5.1.0(@vue/compiler-sfc@3.5.35)(pinia@3.0.4(typescript@6.0.3)(vue@3.5.35(typescript@6.0.3)))(vite@8.0.16(yaml@2.9.0))(vue@3.5.35(typescript@6.0.3))
     devDependencies:
       '@vitejs/plugin-vue':
-        specifier: ^5
-        version: 5.2.4(vite@6.4.2)(vue@3.5.34(typescript@5.9.3))
+        specifier: ^6.0.7
+        version: 6.0.7(vite@8.0.16(yaml@2.9.0))(vue@3.5.35(typescript@6.0.3))
       typescript:
-        specifier: ^5.8
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
       vite:
-        specifier: ^6
-        version: 6.4.2
+        specifier: ^8.0.16
+        version: 8.0.16(yaml@2.9.0)
       vue-tsc:
-        specifier: ^2
-        version: 2.2.12(typescript@5.9.3)
+        specifier: ^3.3.3
+        version: 3.3.3(typescript@6.0.3)
 
   packages/core:
     devDependencies:
       typescript:
-        specifier: ^5.8
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
       vite:
-        specifier: ^6
-        version: 6.4.2
+        specifier: ^8.0.16
+        version: 8.0.16(yaml@2.9.0)
       vite-plugin-dts:
-        specifier: ^4
-        version: 4.5.4(rollup@4.60.4)(typescript@5.9.3)(vite@6.4.2)
+        specifier: ^5.0.2
+        version: 5.0.2(rolldown@1.0.3)(typescript@6.0.3)(vite@8.0.16(yaml@2.9.0))
       vitest:
-        specifier: ^3
-        version: 3.2.4
+        specifier: ^4.1.8
+        version: 4.1.8(vite@8.0.16(yaml@2.9.0))
 
   packages/file-io:
     dependencies:
@@ -135,17 +135,17 @@ importers:
         version: link:../jff
     devDependencies:
       typescript:
-        specifier: ^5.8
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
       vite:
-        specifier: ^6
-        version: 6.4.2
+        specifier: ^8.0.16
+        version: 8.0.16(yaml@2.9.0)
       vite-plugin-dts:
-        specifier: ^4
-        version: 4.5.4(rollup@4.60.4)(typescript@5.9.3)(vite@6.4.2)
+        specifier: ^5.0.2
+        version: 5.0.2(rolldown@1.0.3)(typescript@6.0.3)(vite@8.0.16(yaml@2.9.0))
       vitest:
-        specifier: ^3
-        version: 3.2.4
+        specifier: ^4.1.8
+        version: 4.1.8(vite@8.0.16(yaml@2.9.0))
 
   packages/jff:
     dependencies:
@@ -153,21 +153,21 @@ importers:
         specifier: workspace:*
         version: link:../core
       fast-xml-parser:
-        specifier: ^5
+        specifier: ^5.8.0
         version: 5.8.0
     devDependencies:
       typescript:
-        specifier: ^5.8
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
       vite:
-        specifier: ^6
-        version: 6.4.2
+        specifier: ^8.0.16
+        version: 8.0.16(yaml@2.9.0)
       vite-plugin-dts:
-        specifier: ^4
-        version: 4.5.4(rollup@4.60.4)(typescript@5.9.3)(vite@6.4.2)
+        specifier: ^5.0.2
+        version: 5.0.2(rolldown@1.0.3)(typescript@6.0.3)(vite@8.0.16(yaml@2.9.0))
       vitest:
-        specifier: ^3
-        version: 3.2.4
+        specifier: ^4.1.8
+        version: 4.1.8(vite@8.0.16(yaml@2.9.0))
 
   packages/simulator:
     dependencies:
@@ -176,17 +176,17 @@ importers:
         version: link:../core
     devDependencies:
       typescript:
-        specifier: ^5.8
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
       vite:
-        specifier: ^6
-        version: 6.4.2
+        specifier: ^8.0.16
+        version: 8.0.16(yaml@2.9.0)
       vite-plugin-dts:
-        specifier: ^4
-        version: 4.5.4(rollup@4.60.4)(typescript@5.9.3)(vite@6.4.2)
+        specifier: ^5.0.2
+        version: 5.0.2(rolldown@1.0.3)(typescript@6.0.3)(vite@8.0.16(yaml@2.9.0))
       vitest:
-        specifier: ^3
-        version: 3.2.4
+        specifier: ^4.1.8
+        version: 4.1.8(vite@8.0.16(yaml@2.9.0))
 
   packages/ui:
     dependencies:
@@ -196,353 +196,71 @@ importers:
       '@jauto/simulator':
         specifier: workspace:*
         version: link:../simulator
-      lucide-vue-next:
-        specifier: ^1.0.0
-        version: 1.0.0(vue@3.5.34(typescript@5.9.3))
+      '@lucide/vue':
+        specifier: ^1.17.0
+        version: 1.17.0(vue@3.5.35(typescript@6.0.3))
     devDependencies:
       pinia:
-        specifier: ^3
-        version: 3.0.4(typescript@5.9.3)(vue@3.5.34(typescript@5.9.3))
+        specifier: ^3.0.4
+        version: 3.0.4(typescript@6.0.3)(vue@3.5.35(typescript@6.0.3))
       typescript:
-        specifier: ^5.8
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
       vue:
-        specifier: ^3
-        version: 3.5.34(typescript@5.9.3)
+        specifier: ^3.5.35
+        version: 3.5.35(typescript@6.0.3)
       vue-tsc:
-        specifier: ^2
-        version: 2.2.12(typescript@5.9.3)
+        specifier: ^3.3.3
+        version: 3.3.3(typescript@6.0.3)
 
 packages:
 
-  '@babel/helper-string-parser@7.27.1':
-    resolution: {integrity: sha512-qMlSxKbpRlAridDExk92nSobyDdpPijUq2DW6oDnUqd0iOGxmQjyqhMIihI9+zv4LPyZdRje2cavWPbCbWm3eA==}
-    engines: {node: '>=6.9.0'}
+  '@babel/generator@8.0.0-rc.6':
+    resolution: {integrity: sha512-6mIzgVK8DgEzvIapoQwhXTMnnkuE4STQmVv9H03i/tZ2ml8oev3TRvZJgTenK2Bsq0YWNtzOrFdTyNzCMFtjJQ==}
+    engines: {node: ^22.18.0 || >=24.11.0}
 
-  '@babel/helper-validator-identifier@7.28.5':
-    resolution: {integrity: sha512-qSs4ifwzKJSV39ucNjsvc6WVHs6b7S03sOh2OcHF9UHfVPqWWALUsNUVzhSBiItjRZoLHx7nIarVjqKVusUZ1Q==}
+  '@babel/helper-string-parser@7.29.7':
+    resolution: {integrity: sha512-Pb5ijPrZ89GDH8223L4UP8i6QApWxs04RbPQJTeWDV0/keR2E36MeKnyr6LYmUUvqRRI+Iv87SuF1W6ErINzYw==}
     engines: {node: '>=6.9.0'}
 
-  '@babel/parser@7.29.3':
-    resolution: {integrity: sha512-b3ctpQwp+PROvU/cttc4OYl4MzfJUWy6FZg+PMXfzmt/+39iHVF0sDfqay8TQM3JA2EUOyKcFZt75jWriQijsA==}
-    engines: {node: '>=6.0.0'}
-    hasBin: true
+  '@babel/helper-string-parser@8.0.0-rc.6':
+    resolution: {integrity: sha512-BCkFy+zN6kXQed3YOT7aJl93NfDSzQc3pBfsvTVPs9gU9X3V0aefEF5kwBT0E+mDWH9QgKaZstYUQN9VdQZT4g==}
+    engines: {node: ^22.18.0 || >=24.11.0}
 
-  '@babel/types@7.29.0':
-    resolution: {integrity: sha512-LwdZHpScM4Qz8Xw2iKSzS+cfglZzJGvofQICy7W7v4caru4EaAmyUuO6BGrbyQ2mYV11W0U8j5mBhd14dd3B0A==}
+  '@babel/helper-validator-identifier@7.29.7':
+    resolution: {integrity: sha512-qehxGkRj55h/ff8EMaJ+cYhyaKlHIxqYDn682wQD7RNp9UujOQsHog2uS0r2vzr4pW+sXf90NeeayjcNaX3fFg==}
     engines: {node: '>=6.9.0'}
 
-  '@esbuild/aix-ppc64@0.25.12':
-    resolution: {integrity: sha512-Hhmwd6CInZ3dwpuGTF8fJG6yoWmsToE+vYgD4nytZVxcu1ulHpUQRAB1UJ8+N1Am3Mz4+xOByoQoSZf4D+CpkA==}
-    engines: {node: '>=18'}
-    cpu: [ppc64]
-    os: [aix]
-
-  '@esbuild/aix-ppc64@0.27.7':
-    resolution: {integrity: sha512-EKX3Qwmhz1eMdEJokhALr0YiD0lhQNwDqkPYyPhiSwKrh7/4KRjQc04sZ8db+5DVVnZ1LmbNDI1uAMPEUBnQPg==}
-    engines: {node: '>=18'}
-    cpu: [ppc64]
-    os: [aix]
-
-  '@esbuild/android-arm64@0.25.12':
-    resolution: {integrity: sha512-6AAmLG7zwD1Z159jCKPvAxZd4y/VTO0VkprYy+3N2FtJ8+BQWFXU+OxARIwA46c5tdD9SsKGZ/1ocqBS/gAKHg==}
-    engines: {node: '>=18'}
-    cpu: [arm64]
-    os: [android]
-
-  '@esbuild/android-arm64@0.27.7':
-    resolution: {integrity: sha512-62dPZHpIXzvChfvfLJow3q5dDtiNMkwiRzPylSCfriLvZeq0a1bWChrGx/BbUbPwOrsWKMn8idSllklzBy+dgQ==}
-    engines: {node: '>=18'}
-    cpu: [arm64]
-    os: [android]
-
-  '@esbuild/android-arm@0.25.12':
-    resolution: {integrity: sha512-VJ+sKvNA/GE7Ccacc9Cha7bpS8nyzVv0jdVgwNDaR4gDMC/2TTRc33Ip8qrNYUcpkOHUT5OZ0bUcNNVZQ9RLlg==}
-    engines: {node: '>=18'}
-    cpu: [arm]
-    os: [android]
-
-  '@esbuild/android-arm@0.27.7':
-    resolution: {integrity: sha512-jbPXvB4Yj2yBV7HUfE2KHe4GJX51QplCN1pGbYjvsyCZbQmies29EoJbkEc+vYuU5o45AfQn37vZlyXy4YJ8RQ==}
-    engines: {node: '>=18'}
-    cpu: [arm]
-    os: [android]
-
-  '@esbuild/android-x64@0.25.12':
-    resolution: {integrity: sha512-5jbb+2hhDHx5phYR2By8GTWEzn6I9UqR11Kwf22iKbNpYrsmRB18aX/9ivc5cabcUiAT/wM+YIZ6SG9QO6a8kg==}
-    engines: {node: '>=18'}
-    cpu: [x64]
-    os: [android]
-
-  '@esbuild/android-x64@0.27.7':
-    resolution: {integrity: sha512-x5VpMODneVDb70PYV2VQOmIUUiBtY3D3mPBG8NxVk5CogneYhkR7MmM3yR/uMdITLrC1ml/NV1rj4bMJuy9MCg==}
-    engines: {node: '>=18'}
-    cpu: [x64]
-    os: [android]
-
-  '@esbuild/darwin-arm64@0.25.12':
-    resolution: {integrity: sha512-N3zl+lxHCifgIlcMUP5016ESkeQjLj/959RxxNYIthIg+CQHInujFuXeWbWMgnTo4cp5XVHqFPmpyu9J65C1Yg==}
-    engines: {node: '>=18'}
-    cpu: [arm64]
-    os: [darwin]
-
-  '@esbuild/darwin-arm64@0.27.7':
-    resolution: {integrity: sha512-5lckdqeuBPlKUwvoCXIgI2D9/ABmPq3Rdp7IfL70393YgaASt7tbju3Ac+ePVi3KDH6N2RqePfHnXkaDtY9fkw==}
-    engines: {node: '>=18'}
-    cpu: [arm64]
-    os: [darwin]
-
-  '@esbuild/darwin-x64@0.25.12':
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+    hasBin: true
 
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-    engines: {node: '>=18'}
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+  '@babel/parser@8.0.0-rc.6':
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+    engines: {node: ^22.18.0 || >=24.11.0}
+    hasBin: true
 
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-    engines: {node: '>=18'}
-    cpu: [arm64]
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+  '@babel/types@7.29.7':
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+    engines: {node: '>=6.9.0'}
 
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-    engines: {node: '>=18'}
-    cpu: [ia32]
-    os: [win32]
+  '@babel/types@8.0.0-rc.6':
+    resolution: {integrity: sha512-p7/ABylAYlexb31wtRdIfH9L9A0Z2T/9H6zAqzqndkY2PLkvNNc580wGhp/gGKN4Sp9sQvSkhc6Oga8/O+wTyw==}
+    engines: {node: ^22.18.0 || >=24.11.0}
 
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-    engines: {node: '>=18'}
-    cpu: [ia32]
-    os: [win32]
+  '@emnapi/core@1.10.0':
+    resolution: {integrity: sha512-yq6OkJ4p82CAfPl0u9mQebQHKPJkY7WrIuk205cTYnYe+k2Z8YBh11FrbRG/H6ihirqcacOgl2BIO8oyMQLeXw==}
 
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-    engines: {node: '>=18'}
-    cpu: [x64]
-    os: [win32]
+  '@emnapi/runtime@1.10.0':
+    resolution: {integrity: sha512-ewvYlk86xUoGI0zQRNq/mC+16R1QeDlKQy21Ki3oSYXNgLb45GV1P6A0M+/s6nyCuNDqe5VpaY84BzXGwVbwFA==}
 
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-    engines: {node: '>=18'}
-    cpu: [x64]
-    os: [win32]
+  '@emnapi/wasi-threads@1.2.1':
+    resolution: {integrity: sha512-uTII7OYF+/Mes/MrcIOYp5yOtSMLBWSIoLPpcgwipoiKbli6k322tcoFsxoIIxPDqW01SQGAgko4EzZi2BNv2w==}
 
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@@ -554,33 +272,34 @@ packages:
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-    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
-
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-    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+  '@eslint/config-array@0.23.5':
+    resolution: {integrity: sha512-Y3kKLvC1dvTOT+oGlqNQ1XLqK6D1HU2YXPc52NmAlJZbMMWDzGYXMiPRJ8TYD39muD/OTjlZmNJ4ib7dvSrMBA==}
+    engines: {node: ^20.19.0 || ^22.13.0 || >=24}
 
-  '@eslint/core@0.17.0':
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-    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+  '@eslint/config-helpers@0.6.0':
+    resolution: {integrity: sha512-ii6Bw9jJ2zi2cWA2Z+9/QZ/+3DX6kwaV5Q986D/CdP3Lap3w/pgQZ373FV7byY/i7L4IRH/G43I5dz1ClsCbpA==}
+    engines: {node: ^20.19.0 || ^22.13.0 || >=24}
 
-  '@eslint/eslintrc@3.3.5':
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-    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+  '@eslint/core@1.2.1':
+    resolution: {integrity: sha512-MwcE1P+AZ4C6DWlpin/OmOA54mmIZ/+xZuJiQd4SyB29oAJjN30UW9wkKNptW2ctp4cEsvhlLY/CsQ1uoHDloQ==}
+    engines: {node: ^20.19.0 || ^22.13.0 || >=24}
 
-  '@eslint/js@9.39.4':
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-    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+  '@eslint/js@10.0.1':
+    resolution: {integrity: sha512-zeR9k5pd4gxjZ0abRoIaxdc7I3nDktoXZk2qOv9gCNWx3mVwEn32VRhyLaRsDiJjTs0xq/T8mfPtyuXu7GWBcA==}
+    engines: {node: ^20.19.0 || ^22.13.0 || >=24}
+    peerDependencies:
+      eslint: ^10.0.0
+    peerDependenciesMeta:
+      eslint:
+        optional: true
 
-  '@eslint/object-schema@2.1.7':
-    resolution: {integrity: sha512-VtAOaymWVfZcmZbp6E2mympDIHvyjXs/12LqWYjVw6qjrfF+VK+fyG33kChz3nnK+SU5/NeHOqrTEHS8sXO3OA==}
-    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+  '@eslint/object-schema@3.0.5':
+    resolution: {integrity: sha512-vqTaUEgxzm+YDSdElad6PiRoX4t8VGDjCtt05zn4nU810UIx/uNEV7/lZJ6KwFThKZOzOxzXy48da+No7HZaMw==}
+    engines: {node: ^20.19.0 || ^22.13.0 || >=24}
 
-  '@eslint/plugin-kit@0.4.1':
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-    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+  '@eslint/plugin-kit@0.7.2':
+    resolution: {integrity: sha512-+CNAzxglkrpNf/kKywqQfk74QjtceuOE7Qm+AF8miRvPF/wmmK5+OJOgVh3AVTT3RP2mH3+FOaxlE5v72owk0A==}
+    engines: {node: ^20.19.0 || ^22.13.0 || >=24}
 
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@@ -602,201 +321,148 @@ packages:
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     engines: {node: '>=18.18'}
 
-  '@jridgewell/sourcemap-codec@1.5.5':
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+  '@jridgewell/gen-mapping@0.3.13':
+    resolution: {integrity: sha512-2kkt/7niJ6MgEPxF0bYdQ6etZaA+fQvDcLKckhy1yIQOzaoKjBBjSj63/aLVjYE3qhRt5dvM+uUyfCg6UKCBbA==}
 
-  '@microsoft/api-extractor-model@7.33.8':
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+  '@jridgewell/remapping@2.3.5':
+    resolution: {integrity: sha512-LI9u/+laYG4Ds1TDKSJW2YPrIlcVYOwi2fUC6xB43lueCjgxV4lffOCZCtYFiH6TNOX+tQKXx97T4IKHbhyHEQ==}
 
-  '@microsoft/api-extractor@7.58.7':
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-    hasBin: true
+  '@jridgewell/resolve-uri@3.1.2':
+    resolution: {integrity: sha512-bRISgCIjP20/tbWSPWMEi54QVPRZExkuD9lJL+UIxUKtwVJA8wW1Trb1jMs1RFXo1CBTNZ/5hpC9QvmKWdopKw==}
+    engines: {node: '>=6.0.0'}
 
-  '@microsoft/tsdoc-config@0.18.1':
-    resolution: {integrity: sha512-9brPoVdfN9k9g0dcWkFeA7IH9bbcttzDJlXvkf8b2OBzd5MueR1V2wkKBL0abn0otvmkHJC6aapBOTJDDeMCZg==}
+  '@jridgewell/sourcemap-codec@1.5.5':
+    resolution: {integrity: sha512-cYQ9310grqxueWbl+WuIUIaiUaDcj7WOq5fVhEljNVgRfOUhY9fy2zTvfoqWsnebh8Sl70VScFbICvJnLKB0Og==}
 
-  '@microsoft/tsdoc@0.16.0':
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+  '@jridgewell/trace-mapping@0.3.31':
+    resolution: {integrity: sha512-zzNR+SdQSDJzc8joaeP8QQoCQr8NuYx2dIIytl1QeBEZHJ9uW6hebsrYgbz8hJwUQao3TWCMtmfV8Nu1twOLAw==}
 
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+  '@lucide/vue@1.17.0':
+    resolution: {integrity: sha512-6Q1ZHgr5FbmJzKWe5BxlNdjLj2lbmuH1zwDtVzUJofX0w9UREwKgq4F4jwKqFYyyIS4Rj3FiJvDi2k6djukmmw==}
+    peerDependencies:
+      vue: '>=3.0.1'
 
-  '@rollup/pluginutils@5.3.0':
-    resolution: {integrity: sha512-5EdhGZtnu3V88ces7s53hhfK5KSASnJZv8Lulpc04cWO3REESroJXg73DFsOmgbU2BhwV0E20bu2IDZb3VKW4Q==}
-    engines: {node: '>=14.0.0'}
+  '@napi-rs/wasm-runtime@1.1.4':
+    resolution: {integrity: sha512-3NQNNgA1YSlJb/kMH1ildASP9HW7/7kYnRI2szWJaofaS1hWmbGI4H+d3+22aGzXXN9IJ+n+GiFVcGipJP18ow==}
     peerDependencies:
-      rollup: ^1.20.0||^2.0.0||^3.0.0||^4.0.0
-    peerDependenciesMeta:
-      rollup:
-        optional: true
+      '@emnapi/core': ^1.7.1
+      '@emnapi/runtime': ^1.7.1
 
-  '@rollup/rollup-android-arm-eabi@4.60.4':
-    resolution: {integrity: sha512-F5QXMSiFebS9hKZj02XhWLLnRpJ3B3AROP0tWbFBSj+6kCbg5m9j5JoHKd4mmSVy5mS/IMQloYgYxCuJC0fxEQ==}
-    cpu: [arm]
-    os: [android]
+  '@nodable/entities@2.1.1':
+    resolution: {integrity: sha512-Pig3HxDIoMgjdEH8OCf/dkcTmLFjJRjWuq8jSnklu284/TKOPibSRERmOykiwmyXTtv61mP+44f3GMx0tLAyjg==}
+
+  '@oxc-project/types@0.133.0':
+    resolution: {integrity: sha512-KzkdCd6Uxqnf6l3HOw1xfatAlUURA0g14cvBYFyJ5SaNOQbOUvBr9PKArcPcrNIeRsBdgcUzOGrhKveVpvOIGA==}
 
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+  '@rolldown/binding-android-arm64@1.0.3':
+    resolution: {integrity: sha512-454rs7jHngixp/NMxd5srYD57OnzSlZ/eFTETjORQHLwJG1lRtmNOJcBerZlfu4GjKqeq8aCCIQrMdHyhI51Hw==}
+    engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [arm64]
     os: [android]
 
-  '@rollup/rollup-darwin-arm64@4.60.4':
-    resolution: {integrity: sha512-tua0TaJxMOB1R0V0RS1jFZ/RpURFDJIOR2A6jWwQeawuFyS4gBW+rntLRaQd0EQ4bd6Vp44Z2rXW+YYDBsj6IA==}
+  '@rolldown/binding-darwin-arm64@1.0.3':
+    resolution: {integrity: sha512-PcAhP+ynjURNyy8SKGl5DQP94aGuB/7JrXJb/t7P+hanXvQVMWzUvRRhBAcg/lNRadBhoUPqSoP4xw5tR/KBEA==}
+    engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [arm64]
     os: [darwin]
 
-  '@rollup/rollup-darwin-x64@4.60.4':
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+  '@rolldown/binding-darwin-x64@1.0.3':
+    resolution: {integrity: sha512-9YpfeUvSE2RS7wysJ81uOZkXJz7f7Q55H2Gvp3VEw/EsahqDtrphrZ0EwDLK5vvKOzaCrBsjF8JmnMLcUt78Gg==}
+    engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [x64]
     os: [darwin]
 
-  '@rollup/rollup-freebsd-arm64@4.60.4':
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-    cpu: [arm64]
-    os: [freebsd]
-
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+  '@rolldown/binding-freebsd-x64@1.0.3':
+    resolution: {integrity: sha512-yB1IlAsSNHncV6SCTL27/MVGR5htvQsoGxIv5KMGXALp+Ll1wYsn+x98M9MW7qa+NdSbvrrY7ANI4wLJ0n1e6g==}
+    engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [x64]
     os: [freebsd]
 
-  '@rollup/rollup-linux-arm-gnueabihf@4.60.4':
-    resolution: {integrity: sha512-EIPRXTVQpHyF8WOo219AD2yEltPehLTcTMz2fn6JsatLYSzQf00hj3rulF+yauOlF9/FtM2WpkT/hJh/KJFGhA==}
-    cpu: [arm]
-    os: [linux]
-    libc: [glibc]
-
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+  '@rolldown/binding-linux-arm-gnueabihf@1.0.3':
+    resolution: {integrity: sha512-Yi30IVAAfLUCy2MseFjbB1jAMDl1VMCAas5StnYp8da9+CKvMd2H2cbEjWcw5NPaPqzvYkVIaF1nNUG+b7u/sw==}
+    engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [arm]
     os: [linux]
-    libc: [musl]
 
-  '@rollup/rollup-linux-arm64-gnu@4.60.4':
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+  '@rolldown/binding-linux-arm64-gnu@1.0.3':
+    resolution: {integrity: sha512-jsO7R8To+AdlYgUmN5sHSCZbfhtMBkO0WUx8iORQnPcMMdgr7qM2DQmMwgabs3GhNztdmoKkMKQFHD6DTMCIQw==}
+    engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [arm64]
     os: [linux]
     libc: [glibc]
 
-  '@rollup/rollup-linux-arm64-musl@4.60.4':
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+  '@rolldown/binding-linux-arm64-musl@1.0.3':
+    resolution: {integrity: sha512-VWkUHwWriDciit80wleYwKILoR/KMvxh/IdwS/paX+ZgpuRpCrKLUdadJbc0NpBEiyhpYawsJ73j9aCvOH+f7Q==}
+    engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [arm64]
     os: [linux]
     libc: [musl]
 
-  '@rollup/rollup-linux-loong64-gnu@4.60.4':
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-    cpu: [loong64]
-    os: [linux]
-    libc: [glibc]
-
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-    cpu: [loong64]
-    os: [linux]
-    libc: [musl]
-
-  '@rollup/rollup-linux-ppc64-gnu@4.60.4':
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-    cpu: [ppc64]
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-    libc: [glibc]
-
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+  '@rolldown/binding-linux-ppc64-gnu@1.0.3':
+    resolution: {integrity: sha512-5f1laC0SlIR0yDbFCd8acUhvJIag6N3zC5P7oUPN6wX0aOma+uKJ0wBDH5aq7I1PVI2ttTlhJwzwRIBnLiSGEg==}
+    engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [ppc64]
     os: [linux]
-    libc: [musl]
-
-  '@rollup/rollup-linux-riscv64-gnu@4.60.4':
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-    cpu: [riscv64]
-    os: [linux]
     libc: [glibc]
 
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-    cpu: [riscv64]
-    os: [linux]
-    libc: [musl]
-
-  '@rollup/rollup-linux-s390x-gnu@4.60.4':
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+  '@rolldown/binding-linux-s390x-gnu@1.0.3':
+    resolution: {integrity: sha512-Iq4ko0r4XsgbrF/LunNgHtAGLRRVE2kXonAXQ/MV0mC6jQpMOhW1SvtZja2EhC/kd05++bP78dsqBeIQyYJ6Yg==}
+    engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [s390x]
     os: [linux]
     libc: [glibc]
 
-  '@rollup/rollup-linux-x64-gnu@4.60.4':
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+  '@rolldown/binding-linux-x64-gnu@1.0.3':
+    resolution: {integrity: sha512-B8m6tD5+/N5FeNQFbKlLA/2yVq9ycQP1SeedyEYYKWBNR3ZQbkvIUcNnDNM03lO1l5F2roiiFJGgvoLLyZXtSg==}
+    engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [x64]
     os: [linux]
     libc: [glibc]
 
-  '@rollup/rollup-linux-x64-musl@4.60.4':
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+  '@rolldown/binding-linux-x64-musl@1.0.3':
+    resolution: {integrity: sha512-pSdpdUJHkuCxun9LE7jvgUB9qsRgaiyNNCX7m/AvHTcq67AiT/Yhoxvw5zPfhrM8k/BfP8ce/hMOpthKDpEUow==}
+    engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [x64]
     os: [linux]
     libc: [musl]
 
-  '@rollup/rollup-openbsd-x64@4.60.4':
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-    cpu: [x64]
-    os: [openbsd]
-
-  '@rollup/rollup-openharmony-arm64@4.60.4':
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+  '@rolldown/binding-openharmony-arm64@1.0.3':
+    resolution: {integrity: sha512-OXXS3RKJgX2uLwM+gYyuH5omcH8fL1LJs96pZGgtetVCahON57+d4SJHzTgZiOjxgGkSnpXpOsWuPDGAKAigEg==}
+    engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [arm64]
     os: [openharmony]
 
-  '@rollup/rollup-win32-arm64-msvc@4.60.4':
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-    cpu: [arm64]
-    os: [win32]
-
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-    cpu: [ia32]
-    os: [win32]
+  '@rolldown/binding-wasm32-wasi@1.0.3':
+    resolution: {integrity: sha512-JTtb8BWFynicNSoPrehsCzBtOKjZ6jhMiPFEmOiuXg1Fl8dn2KHQob+GuPSGR0dryQa1PQJbzjF3dqO/whhjLg==}
+    engines: {node: ^20.19.0 || >=22.12.0}
+    cpu: [wasm32]
 
-  '@rollup/rollup-win32-x64-gnu@4.60.4':
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-    cpu: [x64]
+  '@rolldown/binding-win32-arm64-msvc@1.0.3':
+    resolution: {integrity: sha512-gEdFFEN70A/jxb2svrWsN3aDL7OUtmvlOy+6fa2jxG8K0wQ1ZbdeLGnidov6Yu5/733dI5ySfzFlQ/cb0bSz1g==}
+    engines: {node: ^20.19.0 || >=22.12.0}
+    cpu: [arm64]
     os: [win32]
 
-  '@rollup/rollup-win32-x64-msvc@4.60.4':
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+  '@rolldown/binding-win32-x64-msvc@1.0.3':
+    resolution: {integrity: sha512-eXB7CHuaQdqmJcc3koCNtNPmT/bj2gc999kUFgBxG8Ac0NdgXc4rkCHhqrgrhN3zddvvvrgzj1e90SuSfmyIXA==}
+    engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [x64]
     os: [win32]
 
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-    peerDependencies:
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+  '@rolldown/pluginutils@1.0.1':
+    resolution: {integrity: sha512-2j9bGt5Jh8hj+vPtgzPtl72j0yRxHAyumoo6TNfAjsLB04UtpSvPbPcDcBMxz7n+9CYB0c1GxQFxYRg2jimqGw==}
 
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+  '@rollup/pluginutils@5.4.0':
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+    engines: {node: '>=14.0.0'}
     peerDependencies:
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+      rollup: ^1.20.0||^2.0.0||^3.0.0||^4.0.0
     peerDependenciesMeta:
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+      rollup:
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     hasBin: true
 
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+  '@turbo/darwin-arm64@2.9.16':
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+  '@turbo/linux-64@2.9.16':
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+  '@turbo/linux-arm64@2.9.16':
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+  '@turbo/windows-64@2.9.16':
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+  '@turbo/windows-arm64@2.9.16':
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     cpu: [arm64]
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+  '@tybys/wasm-util@0.10.2':
+    resolution: {integrity: sha512-RoBvJ2X0wuKlWFIjrwffGw1IqZHKQqzIchKaadZZfnNpsAYp2mM0h36JtPCjNDAHGgYez/15uMBpfGwchhiMgg==}
 
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+  '@types/esrecurse@4.3.1':
+    resolution: {integrity: sha512-xJBAbDifo5hpffDBuHl0Y8ywswbiAp/Wi7Y/GtAgSlZyIABppyurxVueOPE8LUQOxdlgi6Zqce7uoEpqNTeiUw==}
 
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+  '@types/jsesc@2.5.1':
+    resolution: {integrity: sha512-9VN+6yxLOPLOav+7PwjZbxiID2bVaeq0ED4qSQmdQTdjnXJSaCVKTR58t15oqH1H5t8Ng2ZX1SabJVoN9Q34bw==}
+
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     resolution: {integrity: sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==}
 
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+  '@typescript-eslint/eslint-plugin@8.60.1':
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     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     peerDependencies:
-      '@typescript-eslint/parser': ^8.59.4
+      '@typescript-eslint/parser': ^8.60.1
       eslint: ^8.57.0 || ^9.0.0 || ^10.0.0
       typescript: '>=4.8.4 <6.1.0'
 
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+  '@typescript-eslint/parser@8.60.1':
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+  '@typescript-eslint/project-service@8.60.1':
+    resolution: {integrity: sha512-eXkTH2bxmXlqD1RnOPmLZ9ZM9D3VwSx04JOwBnP9RQ+yUA5a2Mu7SfW8uaV2Aon53NJzZlZYuX7tn91Izf+xaw==}
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+      vite: ^5.0.0 || ^6.0.0 || ^7.0.0 || ^8.0.0
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+      vite: ^6.0.0 || ^7.0.0 || ^8.0.0
     peerDependenciesMeta:
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       vite:
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+        optional: true
 
-  '@vue/compiler-sfc@3.5.34':
-    resolution: {integrity: sha512-D/ihr6uZeIt6r+pVZf46RWT1fAsLFMbUP7k8G1VkiiWexriED9GrX3echHd4Abbt17zjlfiFJ8z7a3BxZOPNjg==}
+  '@vue/compiler-core@3.5.35':
+    resolution: {integrity: sha512-BUmHaR1J+O+CKZ9uJucdVTEr1LHsdyvv7vG3eNRhK3CczEHeMd/LtsHAuD7PbrxvI2envCY2v7HI1vC1aBRzKw==}
 
-  '@vue/compiler-ssr@3.5.34':
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+  '@vue/compiler-dom@3.5.35':
+    resolution: {integrity: sha512-k+bprkXxuqhVajgTx5mUHuir7TwQzUKOWR40ng1ncAqQRPnrLngGGgqVEEhOnTMlc8btHYVKmrP8s5Qyg0hvYA==}
 
-  '@vue/compiler-vue2@2.7.16':
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+  '@vue/compiler-sfc@3.5.35':
+    resolution: {integrity: sha512-G5VPMcXTSywXBgtFOZOnHKBxKSrwXUcvY1iaF5/hRcy7t0J6CH/d8ha9F4nzi00Fax1eLV0QHM7v4mQu68jydw==}
 
-  '@vue/devtools-api@6.6.4':
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+  '@vue/compiler-ssr@3.5.35':
+    resolution: {integrity: sha512-rGhAeXgdM7/ffTJGXT69rCCdTmjDewnFuUZfBQQHTdcEBeWdT5HCGY60y2ytLJr9/Dsu7IntUi5z/w0h6Rjnzw==}
 
   '@vue/devtools-api@7.7.9':
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+  '@vue/devtools-api@8.1.2':
+    resolution: {integrity: sha512-vA0O112YqyDuNA1s7Yb2gCgToQ/OxOWiFDO5ThLCcDy0ldHnSd1dUTaSYhOldbqoNgumE4dxtGAoAaSUKUD1Zg==}
+
   '@vue/devtools-kit@7.7.9':
     resolution: {integrity: sha512-PyQ6odHSgiDVd4hnTP+aDk2X4gl2HmLDfiyEnn3/oV+ckFDuswRs4IbBT7vacMuGdwY/XemxBoh302ctbsptuA==}
 
+  '@vue/devtools-kit@8.1.2':
+    resolution: {integrity: sha512-f75/upc+GCyjXErpgPGz4582ujS0L/adAltGy+tqXMGUJpgAcfGr6CxnnhpZY8BHuMYt6KpbF8uaFrrQG66rGQ==}
+
   '@vue/devtools-shared@7.7.9':
     resolution: {integrity: sha512-iWAb0v2WYf0QWmxCGy0seZNDPdO3Sp5+u78ORnyeonS6MT4PC7VPrryX2BpMJrwlDeaZ6BD4vP4XKjK0SZqaeA==}
 
-  '@vue/language-core@2.2.0':
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-    peerDependencies:
-      typescript: '*'
-    peerDependenciesMeta:
-      typescript:
-        optional: true
+  '@vue/devtools-shared@8.1.2':
+    resolution: {integrity: sha512-X9RyVFYAdkBe4IUf5v48TxBF/6QPmF8CmWrDAjXzfUHrgQ/HGfTC1A6TqgXqZ03ye66l3AD51BAGD69IvKM9sw==}
 
-  '@vue/language-core@2.2.12':
-    resolution: {integrity: sha512-IsGljWbKGU1MZpBPN+BvPAdr55YPkj2nB/TBNGNC32Vy2qLG25DYu/NBN2vNtZqdRbTRjaoYrahLrToim2NanA==}
-    peerDependencies:
-      typescript: '*'
-    peerDependenciesMeta:
-      typescript:
-        optional: true
+  '@vue/language-core@3.3.3':
+    resolution: {integrity: sha512-X6p+7nfY7vVT6dQwUJ+v0Jfq/lwIfhL2jMi91dQ3ln4hnlGXlxsDu/FNkeyHYgvYtyQy18ZX76IZy7X4diDbiQ==}
 
-  '@vue/reactivity@3.5.34':
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+  '@vue/reactivity@3.5.35':
+    resolution: {integrity: sha512-tVc+SsHConvh/Lz64qq1pP3rYArBmK42xonovEcxY74SQtvctZodG/zhq54P5dr38cVuw25d27cPNRdlMidpGQ==}
 
-  '@vue/runtime-core@3.5.34':
-    resolution: {integrity: sha512-mKeBYvu8tcMSLhypAHBmriUFfWXKTCF/23Z4jiCoYK3UtWepkliViNLuR90V9XOyD62mUxs9p1jsrpK3CCGIzw==}
+  '@vue/runtime-core@3.5.35':
+    resolution: {integrity: sha512-A/xFNX9loIcWDygeQuNCfKuh0CoYBzxhqEMNah5TSFg9Z53DrFYEN2qi5CU9necjM1OWYegYREUTHmXTmhfXtg==}
 
-  '@vue/runtime-dom@3.5.34':
-    resolution: {integrity: sha512-e8kZzERmCwUnBRVsgSQlAfrfU2rGoy0FFKPBXSlfEjc/O3KfA7QP0t1/2ZylrbchjmIKB4dPTd07A6WPr0eOrg==}
+  '@vue/runtime-dom@3.5.35':
+    resolution: {integrity: sha512-odrJ1C391dbGnyDRh8U+rnP7J2amIEzfmRk5vXy7xi3aZhEXofTvpi0T4HJb6jlNqQZTNPR5MPHSB3RHNkIORA==}
 
-  '@vue/server-renderer@3.5.34':
-    resolution: {integrity: sha512-nHxmJoTrKsmrkbILRhkC9gY1G3moZbJTqCzDd7DOOzG5KH9oeJ0Unqrff5f9v0pW//jES05ZkJcNtfE8JjOIew==}
+  '@vue/server-renderer@3.5.35':
+    resolution: {integrity: sha512-NkebSOYdB97wi8OQcO3HqzZSlymJi/aWsN/7h74OSVhRTm6qGs3Jp3e0rCXynmWwSlKeRrnlIug+ilYoHBmQDA==}
     peerDependencies:
-      vue: 3.5.34
+      vue: 3.5.35
 
-  '@vue/shared@3.5.34':
-    resolution: {integrity: sha512-24uqU4OIiX29ryC3MeWid/Xf2fa2EFRUVLb77nRhk+UrTVrh/XiGtFAFmJBAtBRbjwNdsPRP+jj/OL27Eg1NDA==}
+  '@vue/shared@3.5.35':
+    resolution: {integrity: sha512-zSbjL7gRXwks2ZQLRGCajBtBXEOXW9Ddhn/HvSdrGkE2dqGnumzW8XtusRrxrE9LvqtiqDXQ+A60Hp6mvdYxfA==}
 
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@@ -1108,50 +767,23 @@ packages:
     engines: {node: '>=0.4.0'}
     hasBin: true
 
-  ajv-draft-04@1.0.0:
-    resolution: {integrity: sha512-mv00Te6nmYbRp5DCwclxtt7yV/joXJPGS7nM+97GdxvuttCOfgI3K4U25zboyeX0O+myI8ERluxQe5wljMmVIw==}
-    peerDependencies:
-      ajv: ^8.5.0
-    peerDependenciesMeta:
-      ajv:
-        optional: true
-
-  ajv-formats@3.0.1:
-    resolution: {integrity: sha512-8iUql50EUR+uUcdRQ3HDqa6EVyo3docL8g5WJ3FNcWmu62IbkGUue/pEyLBW8VGKKucTPgqeks4fIU1DA4yowQ==}
-    peerDependencies:
-      ajv: ^8.0.0
-    peerDependenciesMeta:
-      ajv:
-        optional: true
-
   ajv@6.15.0:
     resolution: {integrity: sha512-fgFx7Hfoq60ytK2c7DhnF8jIvzYgOMxfugjLOSMHjLIPgenqa7S7oaagATUq99mV6IYvN2tRmC0wnTYX6iPbMw==}
 
-  ajv@8.18.0:
-    resolution: {integrity: sha512-PlXPeEWMXMZ7sPYOHqmDyCJzcfNrUr3fGNKtezX14ykXOEIvyK81d+qydx89KY5O71FKMPaQ2vBfBFI5NHR63A==}
-
-  alien-signals@0.4.14:
-    resolution: {integrity: sha512-itUAVzhczTmP2U5yX67xVpsbbOiquusbWVyA9N+sy6+r6YVbFkahXvNCeEPWEOMhwDYwbVbGHFkVL03N9I5g+Q==}
-
-  alien-signals@1.0.13:
-    resolution: {integrity: sha512-OGj9yyTnJEttvzhTUWuscOvtqxq5vrhF7vL9oS0xJ2mK0ItPYP1/y+vCFebfxoEyAz0++1AIwJ5CMr+Fk3nDmg==}
-
-  ansi-styles@4.3.0:
-    resolution: {integrity: sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==}
-    engines: {node: '>=8'}
-
-  argparse@1.0.10:
-    resolution: {integrity: sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==}
-
-  argparse@2.0.1:
-    resolution: {integrity: sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==}
+  alien-signals@3.2.1:
+    resolution: {integrity: sha512-I8FjmltrfnDFoZedi5CG8DghVYNhzb/Ijluz7tCSJH0xpd0484Kowhbb1XDYOxfJpU1p5wnM2X54dA+IfGyD1g==}
 
   assertion-error@2.0.1:
     resolution: {integrity: sha512-Izi8RQcffqCeNVgFigKli1ssklIbpHnCYc6AknXGYoB6grJqyeby7jv12JUQgmTAnIDnbck1uxksT4dzN3PWBA==}
     engines: {node: '>=12'}
 
-  balanced-match@1.0.2:
-    resolution: {integrity: sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==}
+  ast-kit@2.2.0:
+    resolution: {integrity: sha512-m1Q/RaVOnTp9JxPX+F+Zn7IcLYMzM8kZofDImfsKZd8MbR+ikdOzTeztStWqfrqIxZnYWryyI9ePm3NGjnZgGw==}
+    engines: {node: '>=20.19.0'}
+
+  ast-walker-scope@0.9.0:
+    resolution: {integrity: sha512-IJdzo2vLiElBxKzwS36VsCue/62d6IdWjnPB2v3nuPKeWGynp6FF/CYoLa5i/3jXH/z97ZDdsXz6abpgM6w07A==}
+    engines: {node: '>=20.19.0'}
 
   balanced-match@4.0.4:
     resolution: {integrity: sha512-BLrgEcRTwX2o6gGxGOCNyMvGSp35YofuYzw9h1IMTRmKqttAZZVU67bdb9Pr2vUHA8+j3i2tJfjO6C6+4myGTA==}
@@ -1160,55 +792,30 @@ packages:
   birpc@2.9.0:
     resolution: {integrity: sha512-KrayHS5pBi69Xi9JmvoqrIgYGDkD6mcSe/i6YKi3w5kekCLzrX4+nawcXqrj2tIp50Kw/mT/s3p+GVK0A0sKxw==}
 
-  brace-expansion@1.1.14:
-    resolution: {integrity: sha512-MWPGfDxnyzKU7rNOW9SP/c50vi3xrmrua/+6hfPbCS2ABNWfx24vPidzvC7krjU/RTo235sV776ymlsMtGKj8g==}
-
-  brace-expansion@2.1.0:
-    resolution: {integrity: sha512-TN1kCZAgdgweJhWWpgKYrQaMNHcDULHkWwQIspdtjV4Y5aurRdZpjAqn6yX3FPqTA9ngHCc4hJxMAMgGfve85w==}
-
   brace-expansion@5.0.6:
     resolution: {integrity: sha512-kLpxurY4Z4r9sgMsyG0Z9uzsBlgiU/EFKhj/h91/8yHu0edo7XuixOIH3VcJ8kkxs6/jPzoI6U9Vj3WqbMQ94g==}
     engines: {node: 18 || 20 || >=22}
 
-  cac@6.7.14:
-    resolution: {integrity: sha512-b6Ilus+c3RrdDk+JhLKUAQfzzgLEPy6wcXqS7f/xe1EETvsDP6GORG7SFuOs6cID5YkqchW/LXZbX5bc8j7ZcQ==}
-    engines: {node: '>=8'}
-
-  callsites@3.1.0:
-    resolution: {integrity: sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ==}
-    engines: {node: '>=6'}
-
-  chai@5.3.3:
-    resolution: {integrity: sha512-4zNhdJD/iOjSH0A05ea+Ke6MU5mmpQcbQsSOkgdaUMJ9zTlDTD/GYlwohmIE2u0gaxHYiVHEn1Fw9mZ/ktJWgw==}
+  chai@6.2.2:
+    resolution: {integrity: sha512-NUPRluOfOiTKBKvWPtSD4PhFvWCqOi0BGStNWs57X9js7XGTprSmFoz5F0tWhR4WPjNeR9jXqdC7/UpSJTnlRg==}
     engines: {node: '>=18'}
 
-  chalk@4.1.2:
-    resolution: {integrity: sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==}
-    engines: {node: '>=10'}
-
-  check-error@2.1.3:
-    resolution: {integrity: sha512-PAJdDJusoxnwm1VwW07VWwUN1sl7smmC3OKggvndJFadxxDRyFJBX/ggnu/KE4kQAB7a3Dp8f/YXC1FlUprWmA==}
-    engines: {node: '>= 16'}
-
-  color-convert@2.0.1:
-    resolution: {integrity: sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==}
-    engines: {node: '>=7.0.0'}
-
-  color-name@1.1.4:
-    resolution: {integrity: sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==}
+  chokidar@5.0.0:
+    resolution: {integrity: sha512-TQMmc3w+5AxjpL8iIiwebF73dRDF4fBIieAqGn9RGCWaEVwQ6Fb2cGe31Yns0RRIzii5goJ1Y7xbMwo1TxMplw==}
+    engines: {node: '>= 20.19.0'}
 
   compare-versions@6.1.1:
     resolution: {integrity: sha512-4hm4VPpIecmlg59CHXnRDnqGplJFrbLG4aFEl5vl6cK1u76ws3LLvX7ikFnTDl5vo39sjWD6AaDPYodJp/NNHg==}
 
-  concat-map@0.0.1:
-    resolution: {integrity: sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==}
-
   confbox@0.1.8:
     resolution: {integrity: sha512-RMtmw0iFkeR4YV+fUOSucriAQNb9g8zFR52MWCtl+cCZOFRNL6zeB395vPzFhEjjn4fMxXudmELnl/KF/WrK6w==}
 
   confbox@0.2.4:
     resolution: {integrity: sha512-ysOGlgTFbN2/Y6Cg3Iye8YKulHw+R2fNXHrgSmXISQdMnomY6eNDprVdW9R5xBguEqI954+S6709UyiO7B+6OQ==}
 
+  convert-source-map@2.0.0:
+    resolution: {integrity: sha512-Kvp459HrV2FEJ1CAsi1Ku+MY3kasH19TFykTz2xWmMeq6bk2NU3XXvfJ+Q61m0xktWwt+1HSYf3JZsTms3aRJg==}
+
   copy-anything@4.0.5:
     resolution: {integrity: sha512-7Vv6asjS4gMOuILabD3l739tsaxFQmC+a7pLZm02zyvs8p977bL3zEgq3yDk5rn9B0PbYgIv++jmHcuUab4RhA==}
     engines: {node: '>=18'}
@@ -1220,9 +827,6 @@ packages:
   csstype@3.2.3:
     resolution: {integrity: sha512-z1HGKcYy2xA8AGQfwrn0PAy+PB7X/GSj3UVJW9qKyn43xWa+gl5nXmU4qqLMRzWVLFC8KusUX8T/0kCiOYpAIQ==}
 
-  de-indent@1.0.2:
-    resolution: {integrity: sha512-e/1zu3xH5MQryN2zdVaF0OrdNLUbvWxzMbi+iNA6Bky7l1RoP8a2fIbRocyHclXt/arDrrR6lL3TqFD9pMQTsg==}
-
   debug@4.4.3:
     resolution: {integrity: sha512-RGwwWnwQvkVfavKVt22FGLw+xYSdzARwm0ru6DhTVA3umU5hZc28V3kO4stgYryrTlLpuvgI9GiijltAjNbcqA==}
     engines: {node: '>=6.0'}
@@ -1232,61 +836,39 @@ packages:
       supports-color:
         optional: true
 
-  deep-eql@5.0.2:
-    resolution: {integrity: sha512-h5k/5U50IJJFpzfL6nO9jaaumfjO/f2NjK/oYB2Djzm4p9L+3T9qWpZqZ2hAbLPuuYq9wrU08WQyBTL5GbPk5Q==}
-    engines: {node: '>=6'}
-
   deep-is@0.1.4:
     resolution: {integrity: sha512-oIPzksmTg4/MriiaYGO+okXDT7ztn/w3Eptv/+gSIdMdKsJo0u4CfYNFJPy+4SKMuCqGw2wxnA+URMg3t8a/bQ==}
 
-  diff@8.0.4:
-    resolution: {integrity: sha512-DPi0FmjiSU5EvQV0++GFDOJ9ASQUVFh5kD+OzOnYdi7n3Wpm9hWWGfB/O2blfHcMVTL5WkQXSnRiK9makhrcnw==}
-    engines: {node: '>=0.3.1'}
-
-  entities@7.0.1:
-    resolution: {integrity: sha512-TWrgLOFUQTH994YUyl1yT4uyavY5nNB5muff+RtWaqNVCAK408b5ZnnbNAUEWLTCpum9w6arT70i1XdQ4UeOPA==}
-    engines: {node: '>=0.12'}
-
-  es-errors@1.3.0:
-    resolution: {integrity: sha512-Zf5H2Kxt2xjTvbJvP2ZWLEICxA6j+hAmMzIlypy4xcBg1vKVnx89Wy0GbS+kf5cwCVFFzdCFh2XSCFNULS6csw==}
-    engines: {node: '>= 0.4'}
-
-  es-module-lexer@1.7.0:
-    resolution: {integrity: sha512-jEQoCwk8hyb2AZziIOLhDqpm5+2ww5uIE6lkO/6jcOCusfk6LhMHpXXfBLXTZ7Ydyt0j4VoUQv6uGNYbdW+kBA==}
+  detect-libc@2.1.2:
+    resolution: {integrity: sha512-Btj2BOOO83o3WyH59e8MgXsxEQVcarkUOpEYrubB0urwnN10yQ364rsiByU11nZlqWYZm05i/of7io4mzihBtQ==}
+    engines: {node: '>=8'}
 
-  esbuild@0.25.12:
-    resolution: {integrity: sha512-bbPBYYrtZbkt6Os6FiTLCTFxvq4tt3JKall1vRwshA3fdVztsLAatFaZobhkBC8/BrPetoa0oksYoKXoG4ryJg==}
-    engines: {node: '>=18'}
-    hasBin: true
+  entities@7.0.1:
+    resolution: {integrity: sha512-TWrgLOFUQTH994YUyl1yT4uyavY5nNB5muff+RtWaqNVCAK408b5ZnnbNAUEWLTCpum9w6arT70i1XdQ4UeOPA==}
+    engines: {node: '>=0.12'}
 
-  esbuild@0.27.7:
-    resolution: {integrity: sha512-IxpibTjyVnmrIQo5aqNpCgoACA/dTKLTlhMHihVHhdkxKyPO1uBBthumT0rdHmcsk9uMonIWS0m4FljWzILh3w==}
-    engines: {node: '>=18'}
-    hasBin: true
+  es-module-lexer@2.1.0:
+    resolution: {integrity: sha512-n27zTYMjYu1aj4MjCWzSP7G9r75utsaoc8m61weK+W8JMBGGQybd43GstCXZ3WNmSFtGT9wi59qQTW6mhTR5LQ==}
 
   escape-string-regexp@4.0.0:
     resolution: {integrity: sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA==}
     engines: {node: '>=10'}
 
-  eslint-scope@8.4.0:
-    resolution: {integrity: sha512-sNXOfKCn74rt8RICKMvJS7XKV/Xk9kA7DyJr8mJik3S7Cwgy3qlkkmyS2uQB3jiJg6VNdZd/pDBJu0nvG2NlTg==}
-    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+  eslint-scope@9.1.2:
+    resolution: {integrity: sha512-xS90H51cKw0jltxmvmHy2Iai1LIqrfbw57b79w/J7MfvDfkIkFZ+kj6zC3BjtUwh150HsSSdxXZcsuv72miDFQ==}
+    engines: {node: ^20.19.0 || ^22.13.0 || >=24}
 
   eslint-visitor-keys@3.4.3:
     resolution: {integrity: sha512-wpc+LXeiyiisxPlEkUzU6svyS1frIO3Mgxj1fdy7Pm8Ygzguax2N3Fa/D/ag1WqbOprdI+uY6wMUl8/a2G+iag==}
     engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
 
-  eslint-visitor-keys@4.2.1:
-    resolution: {integrity: sha512-Uhdk5sfqcee/9H/rCOJikYz67o0a2Tw2hGRPOG2Y1R2dg7brRe1uG0yaNQDHu+TO/uQPF/5eCapvYSmHUjt7JQ==}
-    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
-
   eslint-visitor-keys@5.0.1:
     resolution: {integrity: sha512-tD40eHxA35h0PEIZNeIjkHoDR4YjjJp34biM0mDvplBe//mB+IHCqHDGV7pxF+7MklTvighcCPPZC7ynWyjdTA==}
     engines: {node: ^20.19.0 || ^22.13.0 || >=24}
 
-  eslint@9.39.4:
-    resolution: {integrity: sha512-XoMjdBOwe/esVgEvLmNsD3IRHkm7fbKIUGvrleloJXUZgDHig2IPWNniv+GwjyJXzuNqVjlr5+4yVUZjycJwfQ==}
-    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+  eslint@10.4.1:
+    resolution: {integrity: sha512-AyIKhnOBuOAdueD7RB3xB+YeAWScb9jHsJBgH2Hcde8InP5JYhqrRR6iTMHyTEwgENK54Cp44e4v8BwNhsuHuw==}
+    engines: {node: ^20.19.0 || ^22.13.0 || >=24}
     hasBin: true
     peerDependencies:
       jiti: '*'
@@ -1294,9 +876,9 @@ packages:
       jiti:
         optional: true
 
-  espree@10.4.0:
-    resolution: {integrity: sha512-j6PAQ2uUr79PZhBjP5C5fhl8e39FmRnOjsD5lGnWrFU8i2G776tBK7+nP8KuQUTTyAZUwfQqXAgrVH5MbH9CYQ==}
-    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+  espree@11.2.0:
+    resolution: {integrity: sha512-7p3DrVEIopW1B1avAGLuCSh1jubc01H2JHc8B4qqGblmg5gI9yumBgACjWo4JlIc04ufug4xJ3SQI8HkS/Rgzw==}
+    engines: {node: ^20.19.0 || ^22.13.0 || >=24}
 
   esquery@1.7.0:
     resolution: {integrity: sha512-Ap6G0WQwcU/LHsvLwON1fAQX9Zp0A2Y6Y/cJBl9r/JbW90Zyg4/zbG6zzKa2OTALELarYHmKu0GhpM5EO+7T0g==}
@@ -1336,9 +918,6 @@ packages:
   fast-levenshtein@2.0.6:
     resolution: {integrity: sha512-DCXu6Ifhqcks7TZKY3Hxp3y6qphY5SJZmrWMDrKcERSOXWQdMhU9Ig/PYrzyw/ul9jOIyh0N4M0tbC5hodg8dw==}
 
-  fast-uri@3.1.2:
-    resolution: {integrity: sha512-rVjf7ArG3LTk+FS6Yw81V1DLuZl1bRbNrev6Tmd/9RaroeeRRJhAt7jg/6YFxbvAQXUCavSoZhPPj6oOx+5KjQ==}
-
   fast-xml-builder@1.2.0:
     resolution: {integrity: sha512-00aAWieqff+ZJhsXA4g1g7M8k+7AYoMUUHF+/zFb5U6Uv/P0Vl4QZo84/IcufzYalLuEj9928bXN9PbbFzMF0Q==}
 
@@ -1370,41 +949,15 @@ packages:
   flatted@3.4.2:
     resolution: {integrity: sha512-PjDse7RzhcPkIJwy5t7KPWQSZ9cAbzQXcafsetQoD7sOJRQlGikNbx7yZp2OotDnJyrDcbyRq3Ttb18iYOqkxA==}
 
-  fs-extra@11.3.5:
-    resolution: {integrity: sha512-eKpRKAovdpZtR1WopLHxlBWvAgPny3c4gX1G5Jhwmmw4XJj0ifSD5qB5TOo8hmA0wlRKDAOAhEE1yVPgs6Fgcg==}
-    engines: {node: '>=14.14'}
-
   fsevents@2.3.3:
     resolution: {integrity: sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==}
     engines: {node: ^8.16.0 || ^10.6.0 || >=11.0.0}
     os: [darwin]
 
-  function-bind@1.1.2:
-    resolution: {integrity: sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==}
-
   glob-parent@6.0.2:
     resolution: {integrity: sha512-XxwI8EOhVQgWp6iDL+3b0r86f4d6AX6zSU55HfB4ydCEuXLXc5FcYeOu+nnGftS4TEju/11rt4KJPTMgbfmv4A==}
     engines: {node: '>=10.13.0'}
 
-  globals@14.0.0:
-    resolution: {integrity: sha512-oahGvuMGQlPw/ivIYBjVSrWAfWLBeku5tpPE2fOPLi+WHffIWbuh2tCjhyQhTBPMf5E9jDEH4FOmTYgYwbKwtQ==}
-    engines: {node: '>=18'}
-
-  graceful-fs@4.2.11:
-    resolution: {integrity: sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ==}
-
-  has-flag@4.0.0:
-    resolution: {integrity: sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==}
-    engines: {node: '>=8'}
-
-  hasown@2.0.3:
-    resolution: {integrity: sha512-ej4AhfhfL2Q2zpMmLo7U1Uv9+PyhIZpgQLGT1F9miIGmiCJIoCgSmczFdrc97mWT4kVY72KA+WnnhJ5pghSvSg==}
-    engines: {node: '>= 0.4'}
-
-  he@1.2.0:
-    resolution: {integrity: sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw==}
-    hasBin: true
-
   hookable@5.5.3:
     resolution: {integrity: sha512-Yc+BQe8SvoXH1643Qez1zqLRmbA5rCL+sSmk6TVos0LWVfNIB7PGncdlId77WzLGSIB5KaWgTaNTs2lNVEI6VQ==}
 
@@ -1416,22 +969,10 @@ packages:
     resolution: {integrity: sha512-Hs59xBNfUIunMFgWAbGX5cq6893IbWg4KnrjbYwX3tx0ztorVgTDA6B2sxf8ejHJ4wz8BqGUMYlnzNBer5NvGg==}
     engines: {node: '>= 4'}
 
-  import-fresh@3.3.1:
-    resolution: {integrity: sha512-TR3KfrTZTYLPB6jUjfx6MF9WcWrHL9su5TObK4ZkYgBdWKPOFoSoQIdEuTuR82pmtxH2spWG9h6etwfr1pLBqQ==}
-    engines: {node: '>=6'}
-
-  import-lazy@4.0.0:
-    resolution: {integrity: sha512-rKtvo6a868b5Hu3heneU+L4yEQ4jYKLtjpnPeUdK7h0yzXGmyBTypknlkCvHFBqfX9YlorEiMM6Dnq/5atfHkw==}
-    engines: {node: '>=8'}
-
   imurmurhash@0.1.4:
     resolution: {integrity: sha512-JmXMZ6wuvDmLiHEml9ykzqO6lwFbof0GG4IkcGaENdCRDDmMVnny7s5HsIgHCbaq0w2MyPhDqkhTUgS2LU2PHA==}
     engines: {node: '>=0.8.19'}
 
-  is-core-module@2.16.2:
-    resolution: {integrity: sha512-evOr8xfXKxE6qSR0hSXL2r3sd7ALj8+7jQEUvPYcm5sgZFdJ+AYzT6yNmJenvIYQBgIGwfwz08sL8zoL7yq2BA==}
-    engines: {node: '>= 0.4'}
-
   is-extglob@2.1.1:
     resolution: {integrity: sha512-SbKbANkN603Vi4jEZv49LeVJMn4yGwsbzZworEoyEiutsN3nJYdbO36zfhGJ6QEDpOZIFkDtnq5JRxmvl3jsoQ==}
     engines: {node: '>=0.10.0'}
@@ -1447,14 +988,9 @@ packages:
   isexe@2.0.0:
     resolution: {integrity: sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw==}
 
-  jju@1.4.0:
-    resolution: {integrity: sha512-8wb9Yw966OSxApiCt0K3yNJL8pnNeIv+OEq2YMidz4FKP6nonSRoOXc80iXY4JaN2FC11B9qsNmDsm+ZOfMROA==}
-
-  js-tokens@9.0.1:
-    resolution: {integrity: sha512-mxa9E9ITFOt0ban3j6L5MpjwegGz6lBQmM1IJkWeBZGcMxto50+eWdjC/52xDbS2vy0k7vIMK0Fe2wfL9OQSpQ==}
-
-  js-yaml@4.1.1:
-    resolution: {integrity: sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==}
+  jsesc@3.1.0:
+    resolution: {integrity: sha512-/sM3dO2FOzXjKQhJuo0Q173wf2KOo8t4I8vHy6lF9poUp7bKT0/NHE8fPX23PwfhnykfqnC2xRxOnVw5XuGIaA==}
+    engines: {node: '>=6'}
     hasBin: true
 
   json-buffer@3.0.1:
@@ -1463,14 +999,13 @@ packages:
   json-schema-traverse@0.4.1:
     resolution: {integrity: sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==}
 
-  json-schema-traverse@1.0.0:
-    resolution: {integrity: sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug==}
-
   json-stable-stringify-without-jsonify@1.0.1:
     resolution: {integrity: sha512-Bdboy+l7tA3OGW6FjyFHWkP5LuByj1Tk33Ljyq0axyzdk9//JSi2u3fP1QSmd1KNwq6VOKYGlAu87CisVir6Pw==}
 
-  jsonfile@6.2.1:
-    resolution: {integrity: sha512-zwOTdL3rFQ/lRdBnntKVOX6k5cKJwEc1HdilT71BWEu7J41gXIB2MRp+vxduPSwZJPWBxEzv4yH1wYLJGUHX4Q==}
+  json5@2.2.3:
+    resolution: {integrity: sha512-XmOWe7eyHYH14cLdVPoyg+GOH3rYX++KpzrylJwSW98t3Nk+U8XOl8FWKOgwtzdb8lXGf6zYwDUzeHMWfxasyg==}
+    engines: {node: '>=6'}
+    hasBin: true
 
   keyv@4.5.4:
     resolution: {integrity: sha512-oxVHkHR/EJf2CNXnWxRLW6mg7JyCCUcG0DtEGmL2ctUo1PNTin1PUil+r/+4r5MpVgC/fn1kjsx7mjSujKqIpw==}
@@ -1482,44 +1017,99 @@ packages:
     resolution: {integrity: sha512-+bT2uH4E5LGE7h/n3evcS/sQlJXCpIp6ym8OWJ5eV6+67Dsql/LaaT7qJBAt2rzfoa/5QBGBhxDix1dMt2kQKQ==}
     engines: {node: '>= 0.8.0'}
 
-  local-pkg@1.1.2:
-    resolution: {integrity: sha512-arhlxbFRmoQHl33a0Zkle/YWlmNwoyt6QNZEIJcqNbdrsix5Lvc4HyyI3EnwxTYlZYc32EbYrQ8SzEZ7dqgg9A==}
+  lightningcss-android-arm64@1.32.0:
+    resolution: {integrity: sha512-YK7/ClTt4kAK0vo6w3X+Pnm0D2cf2vPHbhOXdoNti1Ga0al1P4TBZhwjATvjNwLEBCnKvjJc2jQgHXH0NEwlAg==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [arm64]
+    os: [android]
+
+  lightningcss-darwin-arm64@1.32.0:
+    resolution: {integrity: sha512-RzeG9Ju5bag2Bv1/lwlVJvBE3q6TtXskdZLLCyfg5pt+HLz9BqlICO7LZM7VHNTTn/5PRhHFBSjk5lc4cmscPQ==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [arm64]
+    os: [darwin]
+
+  lightningcss-darwin-x64@1.32.0:
+    resolution: {integrity: sha512-U+QsBp2m/s2wqpUYT/6wnlagdZbtZdndSmut/NJqlCcMLTWp5muCrID+K5UJ6jqD2BFshejCYXniPDbNh73V8w==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [x64]
+    os: [darwin]
+
+  lightningcss-freebsd-x64@1.32.0:
+    resolution: {integrity: sha512-JCTigedEksZk3tHTTthnMdVfGf61Fky8Ji2E4YjUTEQX14xiy/lTzXnu1vwiZe3bYe0q+SpsSH/CTeDXK6WHig==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [x64]
+    os: [freebsd]
+
+  lightningcss-linux-arm-gnueabihf@1.32.0:
+    resolution: {integrity: sha512-x6rnnpRa2GL0zQOkt6rts3YDPzduLpWvwAF6EMhXFVZXD4tPrBkEFqzGowzCsIWsPjqSK+tyNEODUBXeeVHSkw==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [arm]
+    os: [linux]
+
+  lightningcss-linux-arm64-gnu@1.32.0:
+    resolution: {integrity: sha512-0nnMyoyOLRJXfbMOilaSRcLH3Jw5z9HDNGfT/gwCPgaDjnx0i8w7vBzFLFR1f6CMLKF8gVbebmkUN3fa/kQJpQ==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [arm64]
+    os: [linux]
+    libc: [glibc]
+
+  lightningcss-linux-arm64-musl@1.32.0:
+    resolution: {integrity: sha512-UpQkoenr4UJEzgVIYpI80lDFvRmPVg6oqboNHfoH4CQIfNA+HOrZ7Mo7KZP02dC6LjghPQJeBsvXhJod/wnIBg==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [arm64]
+    os: [linux]
+    libc: [musl]
+
+  lightningcss-linux-x64-gnu@1.32.0:
+    resolution: {integrity: sha512-V7Qr52IhZmdKPVr+Vtw8o+WLsQJYCTd8loIfpDaMRWGUZfBOYEJeyJIkqGIDMZPwPx24pUMfwSxxI8phr/MbOA==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [x64]
+    os: [linux]
+    libc: [glibc]
+
+  lightningcss-linux-x64-musl@1.32.0:
+    resolution: {integrity: sha512-bYcLp+Vb0awsiXg/80uCRezCYHNg1/l3mt0gzHnWV9XP1W5sKa5/TCdGWaR/zBM2PeF/HbsQv/j2URNOiVuxWg==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [x64]
+    os: [linux]
+    libc: [musl]
+
+  lightningcss-win32-arm64-msvc@1.32.0:
+    resolution: {integrity: sha512-8SbC8BR40pS6baCM8sbtYDSwEVQd4JlFTOlaD3gWGHfThTcABnNDBda6eTZeqbofalIJhFx0qKzgHJmcPTnGdw==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [arm64]
+    os: [win32]
+
+  lightningcss-win32-x64-msvc@1.32.0:
+    resolution: {integrity: sha512-Amq9B/SoZYdDi1kFrojnoqPLxYhQ4Wo5XiL8EVJrVsB8ARoC1PWW6VGtT0WKCemjy8aC+louJnjS7U18x3b06Q==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [x64]
+    os: [win32]
+
+  lightningcss@1.32.0:
+    resolution: {integrity: sha512-NXYBzinNrblfraPGyrbPoD19C1h9lfI/1mzgWYvXUTe414Gz/X1FD2XBZSZM7rRTrMA8JL3OtAaGifrIKhQ5yQ==}
+    engines: {node: '>= 12.0.0'}
+
+  local-pkg@1.2.1:
+    resolution: {integrity: sha512-++gUqRDEvcnN6Zhqrr+y/CkVEHhlrR96vZn3nZZPYzMcBUyBtTKzB9NadClFIsIVSsu+3i9tfk/erqy9kAmt7Q==}
     engines: {node: '>=14'}
 
   locate-path@6.0.0:
     resolution: {integrity: sha512-iPZK6eYjbxRu3uB4/WZ3EsEIMJFMqAoopl3R+zuq0UjcAm/MO6KCweDgPfP3elTztoKP3KtnVHxTn2NHBSDVUw==}
     engines: {node: '>=10'}
 
-  lodash.merge@4.6.2:
-    resolution: {integrity: sha512-0KpjqXRVvrYyCsX1swR/XTK0va6VQkQM6MNo7PqW77ByjAhoARA8EfrP1N4+KlKj8YS0ZUCtRT/YUuhyYDujIQ==}
-
-  loupe@3.2.1:
-    resolution: {integrity: sha512-CdzqowRJCeLU72bHvWqwRBBlLcMEtIvGrlvef74kMnV2AolS9Y8xUv1I0U/MNAWMhBlKIoyuEgoJ0t/bbwHbLQ==}
-
-  lucide-vue-next@1.0.0:
-    resolution: {integrity: sha512-V6SPvx1IHTj/UY+FrIYWV5faISsPSb8BnWSFDxAtezWKvWc9ZZ40PDrdu1/Qb5vg4lHWr1hs1BAMGVGm6V1Xdg==}
-    deprecated: Package deprecated. Please use @lucide/vue instead.
-    peerDependencies:
-      vue: '>=3.0.1'
+  magic-string-ast@1.0.3:
+    resolution: {integrity: sha512-CvkkH1i81zl7mmb94DsRiFeG9V2fR2JeuK8yDgS8oiZSFa++wWLEgZ5ufEOyLHbvSbD1gTRKv9NdX69Rnvr9JA==}
+    engines: {node: '>=20.19.0'}
 
   magic-string@0.30.21:
     resolution: {integrity: sha512-vd2F4YUyEXKGcLHoq+TEyCjxueSeHnFxyyjNp80yg0XV4vUhnDer/lvvlqM/arB5bXQN5K2/3oinyCRyx8T2CQ==}
 
-  minimatch@10.2.3:
-    resolution: {integrity: sha512-Rwi3pnapEqirPSbWbrZaa6N3nmqq4Xer/2XooiOKyV3q12ML06f7MOuc5DVH8ONZIFhwIYQ3yzPH4nt7iWHaTg==}
-    engines: {node: 18 || 20 || >=22}
-
   minimatch@10.2.5:
     resolution: {integrity: sha512-MULkVLfKGYDFYejP07QOurDLLQpcjk7Fw+7jXS2R2czRQzR56yHRveU5NDJEOviH+hETZKSkIk5c+T23GjFUMg==}
     engines: {node: 18 || 20 || >=22}
 
-  minimatch@3.1.5:
-    resolution: {integrity: sha512-VgjWUsnnT6n+NUk6eZq77zeFdpW2LWDzP6zFGrCbHXiYNul5Dzqk2HHQ5uFH2DNW5Xbp8+jVzaeNt94ssEEl4w==}
-
-  minimatch@9.0.9:
-    resolution: {integrity: sha512-OBwBN9AL4dqmETlpS2zasx+vTeWclWzkblfZk7KTA5j3jeOONz/tRCnZomUyvNg83wL5Zv9Ss6HMJXAgL8R2Yg==}
-    engines: {node: '>=16 || 14 >=14.17'}
-
   mitt@3.0.1:
     resolution: {integrity: sha512-vKivATfr97l2/QBCYAkXYDbrIWPM2IIKEl7YPhjCvKlG3kE2gm+uBo6nEXK3M5/Ffh/FLpKExzOQ3JJoJGFKBw==}
 
@@ -1540,6 +1130,10 @@ packages:
   natural-compare@1.4.0:
     resolution: {integrity: sha512-OWND8ei3VtNC9h7V60qff3SVobHr996CTwgxubgyQYEpg290h9J0buyECNNJexkFm5sOajh5G116RYA1c8ZMSw==}
 
+  obug@2.1.2:
+    resolution: {integrity: sha512-AWGB9WFcRXOQs48Z/udjI5ZcZMHXwX8XPByNpOydgcGsDLIzjGizhoMWJyKAWze7AVW/2W1i+/gPX4YtKe5cyg==}
+    engines: {node: '>=12.20.0'}
+
   optionator@0.9.4:
     resolution: {integrity: sha512-6IpQ7mKUxRcZNLIObR0hz7lxsapSSIYNZJwXPGeF0mTVqGKFIXj1DQcMoT22S3ROcLyY/rz0PWaWZ9ayWmad9g==}
     engines: {node: '>= 0.8.0'}
@@ -1552,10 +1146,6 @@ packages:
     resolution: {integrity: sha512-LaNjtRWUBY++zB5nE/NwcaoMylSPk+S+ZHNB1TzdbMJMny6dynpAGt7X/tl/QYq3TIeE6nxHppbo2LGymrG5Pw==}
     engines: {node: '>=10'}
 
-  parent-module@1.0.1:
-    resolution: {integrity: sha512-GQ2EWRpQV8/o+Aw8YqtfZZPfNRWZYkbidE9k5rpl/hC3vtHHBfGm2Ifi6qWV+coDGkrUKZAxE3Lot5kcsRlh+g==}
-    engines: {node: '>=6'}
-
   path-browserify@1.0.1:
     resolution: {integrity: sha512-b7uo2UCUOYZcnF/3ID0lulOJi/bafxa1xPe7ZPsammBSpjSWQkjNxlt635YGS2MiR9GjvuXCtz2emr3jbsz98g==}
 
@@ -1571,19 +1161,15 @@ packages:
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     engines: {node: '>=8'}
 
-  path-parse@1.0.7:
-    resolution: {integrity: sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==}
-
   pathe@2.0.3:
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-  pathval@2.0.1:
-    resolution: {integrity: sha512-//nshmD55c46FuFw26xV/xFAaB5HF9Xdap7HJBBnrKdAd6/GxDBaNA1870O79+9ueg61cZLSVc+OaFlfmObYVQ==}
-    engines: {node: '>= 14.16'}
-
   perfect-debounce@1.0.0:
     resolution: {integrity: sha512-xCy9V055GLEqoFaHoC1SoLIaLmWctgCUaBaWxDZ7/Zx4CTyX7cJQLJOok/orfjZAh9kEYpjJa4d0KcJmCbctZA==}
 
+  perfect-debounce@2.1.0:
+    resolution: {integrity: sha512-LjgdTytVFXeUgtHZr9WYViYSM/g8MkcTPYDlPa3cDqMirHjKiSZPYd6DoL7pK8AJQr+uWkQvCjHNdiMqsrJs+g==}
+
   picocolors@1.1.1:
     resolution: {integrity: sha512-xceH2snhtb5M9liqDsmEw56le376mTZkEX/jEb/RxNFyegNul7eNslCXP9FDj/Lcu0X8KEyMceP2ntpaHrDEVA==}
 
@@ -1606,8 +1192,8 @@ packages:
   pkg-types@2.3.1:
     resolution: {integrity: sha512-y+ichcgc2LrADuhLNAx8DFjVfgz91pRxfZdI3UDhxHvcVEZsenLO+7XaU5vOp0u/7V/wZ+plyuQxtrDlZJ+yeg==}
 
-  postcss@8.5.14:
-    resolution: {integrity: sha512-SoSL4+OSEtR99LHFZQiJLkT59C5B1amGO1NzTwj7TT1qCUgUO6hxOvzkOYxD+vMrXBM3XJIKzokoERdqQq/Zmg==}
+  postcss@8.5.15:
+    resolution: {integrity: sha512-FfR8sjd4em2T6fb3I2MwAJU7HWVMr9zba+enmQeeWFfCbm+UOC/0X4DS8XtpUTMwWMGbjKYP7xjfNekzyGmB3A==}
     engines: {node: ^10 || ^12 || >=14}
 
   prelude-ls@1.2.1:
@@ -1626,34 +1212,23 @@ packages:
   quansync@0.2.11:
     resolution: {integrity: sha512-AifT7QEbW9Nri4tAwR5M/uzpBuqfZf+zwaEM/QkzEjj7NBuFD2rBuy0K3dE+8wltbezDV7JMA0WfnCPYRSYbXA==}
 
-  require-from-string@2.0.2:
-    resolution: {integrity: sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==}
-    engines: {node: '>=0.10.0'}
-
-  resolve-from@4.0.0:
-    resolution: {integrity: sha512-pb/MYmXstAkysRFx8piNI1tGFNQIFA3vkE3Gq4EuA1dF6gHp/+vgZqsCGJapvy8N3Q+4o7FwvquPJcnZ7RYy4g==}
-    engines: {node: '>=4'}
-
-  resolve@1.22.12:
-    resolution: {integrity: sha512-TyeJ1zif53BPfHootBGwPRYT1RUt6oGWsaQr8UyZW/eAm9bKoijtvruSDEmZHm92CwS9nj7/fWttqPCgzep8CA==}
-    engines: {node: '>= 0.4'}
-    hasBin: true
+  readdirp@5.0.0:
+    resolution: {integrity: sha512-9u/XQ1pvrQtYyMpZe7DXKv2p5CNvyVwzUB6uhLAnQwHMSgKMBR62lc7AHljaeteeHXn11XTAaLLUVZYVZyuRBQ==}
+    engines: {node: '>= 20.19.0'}
 
   rfdc@1.4.1:
     resolution: {integrity: sha512-q1b3N5QkRUWUl7iyylaaj3kOpIT0N2i9MqIEQXP73GVsN9cw3fdx8X63cEmWhJGi2PPCF23Ijp7ktmd39rawIA==}
 
-  rollup@4.60.4:
-    resolution: {integrity: sha512-WHeFSbZYsPu3+bLoNRUuAO+wavNlocOPf3wSHTP7hcFKVnJeWsYlCDbr3mTS14FCizf9ccIxXA8sGL8zKeQN3g==}
-    engines: {node: '>=18.0.0', npm: '>=8.0.0'}
+  rolldown@1.0.3:
+    resolution: {integrity: sha512-i00lAJ2ks1BYr7rjNjKC7BcqAS7nVfiT3QX1SI5aY+AFHblCmaUf9OE9dbdzDvW6dJxbi2ZCZiy9v3CcwOiX3g==}
+    engines: {node: ^20.19.0 || >=22.12.0}
     hasBin: true
 
-  semver@7.7.4:
-    resolution: {integrity: sha512-vFKC2IEtQnVhpT78h1Yp8wzwrf8CM+MzKMHGJZfBtzhZNycRFnXsHk6E5TxIkkMsgNS7mdX3AGB7x2QM2di4lA==}
-    engines: {node: '>=10'}
-    hasBin: true
+  scule@1.3.0:
+    resolution: {integrity: sha512-6FtHJEvt+pVMIB9IBY+IcCJ6Z5f1iQnytgyfKMhDKgmzYG+TeH/wx1y3l27rshSbLiSanrR9ffZDrEsmjlQF2g==}
 
-  semver@7.8.0:
-    resolution: {integrity: sha512-AcM7dV/5ul4EekoQ29Agm5vri8JNqRyj39o0qpX6vDF2GZrtutZl5RwgD1XnZjiTAfncsJhMI48QQH3sN87YNA==}
+  semver@7.8.2:
+    resolution: {integrity: sha512-c8jsqUZm3omBOI66G90z1Dyw5z622G8oLG+omfsHBJf3CWQTlOcwOjvOG6wtiNfW6anKm/eA39LMwMtMez2TiQ==}
     engines: {node: '>=10'}
     hasBin: true
 
@@ -1672,33 +1247,15 @@ packages:
     resolution: {integrity: sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA==}
     engines: {node: '>=0.10.0'}
 
-  source-map@0.6.1:
-    resolution: {integrity: sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==}
-    engines: {node: '>=0.10.0'}
-
   speakingurl@14.0.1:
     resolution: {integrity: sha512-1POYv7uv2gXoyGFpBCmpDVSNV74IfsWlDW216UPjbWufNf+bSU6GdbDsxdcxtfwb4xlI3yxzOTKClUosxARYrQ==}
     engines: {node: '>=0.10.0'}
 
-  sprintf-js@1.0.3:
-    resolution: {integrity: sha512-D9cPgkvLlV3t3IzL0D0YLvGA9Ahk4PcvVwUbN0dSGr1aP0Nrt4AEnTUbuGvquEC0mA64Gqt1fzirlRs5ibXx8g==}
-
   stackback@0.0.2:
     resolution: {integrity: sha512-1XMJE5fQo1jGH6Y/7ebnwPOBEkIEnT4QF32d5R1+VXdXveM0IBMJt8zfaxX1P3QhVwrYe+576+jkANtSS2mBbw==}
 
-  std-env@3.10.0:
-    resolution: {integrity: sha512-5GS12FdOZNliM5mAOxFRg7Ir0pWz8MdpYm6AY6VPkGpbA7ZzmbzNcBJQ0GPvvyWgcY7QAhCgf9Uy89I03faLkg==}
-
-  string-argv@0.3.2:
-    resolution: {integrity: sha512-aqD2Q0144Z+/RqG52NeHEkZauTAUWJO8c6yTftGJKO3Tja5tUgIfmIl6kExvhtxSDP7fXB6DvzkfMpCd/F3G+Q==}
-    engines: {node: '>=0.6.19'}
-
-  strip-json-comments@3.1.1:
-    resolution: {integrity: sha512-6fPc+R4ihwqP6N/aIv2f1gMH8lOVtWQHoqC4yK6oSDVVocumAsfCqjkXnqiYMhmMwS/mEHLp7Vehlt3ql6lEig==}
-    engines: {node: '>=8'}
-
-  strip-literal@3.1.0:
-    resolution: {integrity: sha512-8r3mkIM/2+PpjHoOtiAW8Rg3jJLHaV7xPwG+YRGrv6FP0wwk/toTpATxWYOW0BKdWwl82VT2tFYi5DlROa0Mxg==}
+  std-env@4.1.0:
+    resolution: {integrity: sha512-Rq7ybcX2RuC55r9oaPVEW7/xu3tj8u4GeBYHBWCychFtzMIr86A7e3PPEBPT37sHStKX3+TiX/Fr/ACmJLVlLQ==}
 
   strnum@2.3.0:
     resolution: {integrity: sha512-ums3KNd42PGyx5xaoVTO1mjU1bH3NpY4vsrVlnv9PNGqQj8wd7rJ6nEypLrJ7z5vxK5RP0yMLo6J/Gsm62DI5Q==}
@@ -1707,38 +1264,19 @@ packages:
     resolution: {integrity: sha512-H+ue8Zo4vJmV2nRjpx86P35lzwDT3nItnIsocgumgr0hHMQ+ZGq5vrERg9kJBo5AWGmxZDhzDo+WVIJqkB0cGA==}
     engines: {node: '>=16'}
 
-  supports-color@7.2.0:
-    resolution: {integrity: sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==}
-    engines: {node: '>=8'}
-
-  supports-color@8.1.1:
-    resolution: {integrity: sha512-MpUEN2OodtUzxvKQl72cUF7RQ5EiHsGvSsVG0ia9c5RbWGL2CI4C7EpPS8UTBIplnlzZiNuV56w+FuNxy3ty2Q==}
-    engines: {node: '>=10'}
-
-  supports-preserve-symlinks-flag@1.0.0:
-    resolution: {integrity: sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==}
-    engines: {node: '>= 0.4'}
-
   tinybench@2.9.0:
     resolution: {integrity: sha512-0+DUvqWMValLmha6lr4kD8iAMK1HzV0/aKnCtWb9v9641TnP/MFb7Pc2bxoxQjTXAErryXVgUOfv2YqNllqGeg==}
 
-  tinyexec@0.3.2:
-    resolution: {integrity: sha512-KQQR9yN7R5+OSwaK0XQoj22pwHoTlgYqmUscPYoknOoWCWfj/5/ABTMRi69FrKU5ffPVh5QcFikpWJI/P1ocHA==}
+  tinyexec@1.2.4:
+    resolution: {integrity: sha512-SHf/r48b7vOrjve9PxJo3MN5v5yuyjHvdUcrQffT3WXMUfnGmHDVbC4k3sHJaJTgZCwpUplIaAo5ANtMyp3YHg==}
+    engines: {node: '>=18'}
 
-  tinyglobby@0.2.16:
-    resolution: {integrity: sha512-pn99VhoACYR8nFHhxqix+uvsbXineAasWm5ojXoN8xEwK5Kd3/TrhNn1wByuD52UxWRLy8pu+kRMniEi6Eq9Zg==}
+  tinyglobby@0.2.17:
+    resolution: {integrity: sha512-wXR/dYpcqKmfWpEdZjiKJOwCNFndD0DMnrW/cYjVGttEkBfVgcLFHoNrlj47mjOVic9yyNu65alsgF4NQyTa2g==}
     engines: {node: '>=12.0.0'}
 
-  tinypool@1.1.1:
-    resolution: {integrity: sha512-Zba82s87IFq9A9XmjiX5uZA/ARWDrB03OHlq+Vw1fSdt0I+4/Kutwy8BP4Y/y/aORMo61FQ0vIb5j44vSo5Pkg==}
-    engines: {node: ^18.0.0 || >=20.0.0}
-
-  tinyrainbow@2.0.0:
-    resolution: {integrity: sha512-op4nsTR47R6p0vMUUoYl/a+ljLFVtlfaXkLQmqfLR1qHma1h/ysYk4hEXZ880bf2CYgTskvTa/e196Vd5dDQXw==}
-    engines: {node: '>=14.0.0'}
-
-  tinyspy@4.0.4:
-    resolution: {integrity: sha512-azl+t0z7pw/z958Gy9svOTuzqIk6xq+NSheJzn5MMWtWTFywIacg2wUlzKFGtt3cthx0r2SxMK0yzJOR0IES7Q==}
+  tinyrainbow@3.1.0:
+    resolution: {integrity: sha512-Bf+ILmBgretUrdJxzXM0SgXLZ3XfiaUuOj/IKQHuTXip+05Xn+uyEYdVg0kYDipTBcLrCVyUzAPz7QmArb0mmw==}
     engines: {node: '>=14.0.0'}
 
   ts-api-utils@2.5.0:
@@ -1747,99 +1285,101 @@ packages:
     peerDependencies:
       typescript: '>=4.8.4'
 
-  turbo@2.9.14:
-    resolution: {integrity: sha512-BQqXRr4UoWI3UPFrtznCLykYHxwxWh53iCB57x092jPMjIlW1wnm3N895g5irpiXmnxUhREBB0n6+y8BHhs4nw==}
+  tslib@2.8.1:
+    resolution: {integrity: sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==}
+
+  turbo@2.9.16:
+    resolution: {integrity: sha512-NqgRQy6j6dPYcdSdv0q1g9QsZg7SWg87RERM8otw/1AtKU2yTFVClOM7cbwKzOonZr/Ek1blTBucw64L9H0Bwg==}
     hasBin: true
 
   type-check@0.4.0:
     resolution: {integrity: sha512-XleUoc9uwGXqjWwXaUTZAmzMcFZ5858QA2vvx1Ur5xIcixXIP+8LnFDgRplU30us6teqdlskFfu+ae4K79Ooew==}
     engines: {node: '>= 0.8.0'}
 
-  typescript-eslint@8.59.4:
-    resolution: {integrity: sha512-Rw6+44QNFaXtgHSjPy+Kw8hrJniMYzR85E9yLmOLcfZ91/rz+JXQbDTCmc6ccxMPY6K6PgAq26f0JCBfR7LIPQ==}
+  typescript-eslint@8.60.1:
+    resolution: {integrity: sha512-6m5hkkRAp8lKvhVpcprAIn5KkehQEh+47oHH2VGnExEh7dhNxXlg6GPAOIu6TxbVQxhebrJDvjl3020ooiWCMA==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     peerDependencies:
       eslint: ^8.57.0 || ^9.0.0 || ^10.0.0
       typescript: '>=4.8.4 <6.1.0'
 
-  typescript@5.9.3:
-    resolution: {integrity: sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==}
+  typescript@6.0.3:
+    resolution: {integrity: sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==}
     engines: {node: '>=14.17'}
     hasBin: true
 
   ufo@1.6.4:
     resolution: {integrity: sha512-JFNbkD1Svwe0KvGi8GOeLcP4kAWQ609twvCdcHxq1oSL8svv39ZuSvajcD8B+5D0eL4+s1Is2D/O6KN3qcTeRA==}
 
-  universalify@2.0.1:
-    resolution: {integrity: sha512-gptHNQghINnc/vTGIk0SOFGFNXw7JVrlRUtConJRlvaw6DuX0wO5Jeko9sWrMBhh+PsYAZ7oXAiOnf/UKogyiw==}
-    engines: {node: '>= 10.0.0'}
-
-  uri-js@4.4.1:
-    resolution: {integrity: sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==}
-
-  vite-node@3.2.4:
-    resolution: {integrity: sha512-EbKSKh+bh1E1IFxeO0pg1n4dvoOTt0UDiXMd/qn++r98+jPO1xtJilvXldeuQ8giIB5IkpjCgMleHMNEsGH6pg==}
-    engines: {node: ^18.0.0 || ^20.0.0 || >=22.0.0}
-    hasBin: true
-
-  vite-plugin-dts@4.5.4:
-    resolution: {integrity: sha512-d4sOM8M/8z7vRXHHq/ebbblfaxENjogAAekcfcDCCwAyvGqnPrc7f4NZbvItS+g4WTgerW0xDwSz5qz11JT3vg==}
-    peerDependencies:
-      typescript: '*'
-      vite: '*'
-    peerDependenciesMeta:
-      vite:
-        optional: true
-
-  vite@6.4.2:
-    resolution: {integrity: sha512-2N/55r4JDJ4gdrCvGgINMy+HH3iRpNIz8K6SFwVsA+JbQScLiC+clmAxBgwiSPgcG9U15QmvqCGWzMbqda5zGQ==}
-    engines: {node: ^18.0.0 || ^20.0.0 || >=22.0.0}
-    hasBin: true
+  unplugin-dts@1.0.2:
+    resolution: {integrity: sha512-VbNiMD0LMl/t6nJueGtrCp79N7ZO1nquxj/FUybJDnKwZGsnW2wjdwBSzA3QEHujoxmxZIptsG43hL7LzXE96w==}
     peerDependencies:
-      '@types/node': ^18.0.0 || ^20.0.0 || >=22.0.0
-      jiti: '>=1.21.0'
-      less: '*'
-      lightningcss: ^1.21.0
-      sass: '*'
-      sass-embedded: '*'
-      stylus: '*'
-      sugarss: '*'
-      terser: ^5.16.0
-      tsx: ^4.8.1
-      yaml: ^2.4.2
+      '@microsoft/api-extractor': '>=7'
+      '@rspack/core': ^1
+      '@vue/language-core': ~3.1.5
+      esbuild: '*'
+      rolldown: '*'
+      rollup: '>=3'
+      typescript: '>=4'
+      vite: '>=3'
+      webpack: ^4 || ^5
     peerDependenciesMeta:
-      '@types/node':
+      '@microsoft/api-extractor':
         optional: true
-      jiti:
+      '@rspack/core':
         optional: true
-      less:
+      '@vue/language-core':
         optional: true
-      lightningcss:
+      esbuild:
         optional: true
-      sass:
+      rolldown:
         optional: true
-      sass-embedded:
+      rollup:
         optional: true
-      stylus:
+      vite:
         optional: true
-      sugarss:
+      webpack:
         optional: true
-      terser:
+
+  unplugin-utils@0.3.1:
+    resolution: {integrity: sha512-5lWVjgi6vuHhJ526bI4nlCOmkCIF3nnfXkCMDeMJrtdvxTs6ZFCM8oNufGTsDbKv/tJ/xj8RpvXjRuPBZJuJog==}
+    engines: {node: '>=20.19.0'}
+
+  unplugin@2.3.11:
+    resolution: {integrity: sha512-5uKD0nqiYVzlmCRs01Fhs2BdkEgBS3SAVP6ndrBsuK42iC2+JHyxM05Rm9G8+5mkmRtzMZGY8Ct5+mliZxU/Ww==}
+    engines: {node: '>=18.12.0'}
+
+  unplugin@3.0.0:
+    resolution: {integrity: sha512-0Mqk3AT2TZCXWKdcoaufeXNukv2mTrEZExeXlHIOZXdqYoHHr4n51pymnwV8x2BOVxwXbK2HLlI7usrqMpycdg==}
+    engines: {node: ^20.19.0 || >=22.12.0}
+
+  uri-js@4.4.1:
+    resolution: {integrity: sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==}
+
+  vite-plugin-dts@5.0.2:
+    resolution: {integrity: sha512-lNeHS+dwGju6eRmNvZQt8Shwv9j3m98hbHse/lIbLq9q3yE2DcIOBBYQEVUF6tS0kOmv+VA9Z5FqmzFnGe4U8g==}
+    peerDependencies:
+      '@microsoft/api-extractor': '>=7'
+      rollup: '>=3'
+      vite: '>=3'
+    peerDependenciesMeta:
+      '@microsoft/api-extractor':
         optional: true
-      tsx:
+      rollup:
         optional: true
-      yaml:
+      vite:
         optional: true
 
-  vite@7.3.3:
-    resolution: {integrity: sha512-/4XH147Ui7OGTjg3HbdWe5arnZQSbfuRzdr9Ec7TQi5I7R+ir0Rlc9GIvD4v0XZurELqA035KVXJXpR61xhiTA==}
+  vite@8.0.16:
+    resolution: {integrity: sha512-h9bXPmJichP5fLmVQo3PyaGSDE2n3aPuomeAlVRm0JLmt4rY6zmPKd59HYI4LNW8oTK7tlTsuC7l/m7awx9Jcw==}
     engines: {node: ^20.19.0 || >=22.12.0}
     hasBin: true
     peerDependencies:
       '@types/node': ^20.19.0 || >=22.12.0
+      '@vitejs/devtools': ^0.1.18
+      esbuild: ^0.27.0 || ^0.28.0
       jiti: '>=1.21.0'
       less: ^4.0.0
-      lightningcss: ^1.21.0
       sass: ^1.70.0
       sass-embedded: ^1.70.0
       stylus: '>=0.54.8'
@@ -1850,12 +1390,14 @@ packages:
     peerDependenciesMeta:
       '@types/node':
         optional: true
+      '@vitejs/devtools':
+        optional: true
+      esbuild:
+        optional: true
       jiti:
         optional: true
       less:
         optional: true
-      lightningcss:
-        optional: true
       sass:
         optional: true
       sass-embedded:
@@ -1871,26 +1413,39 @@ packages:
       yaml:
         optional: true
 
-  vitest@3.2.4:
-    resolution: {integrity: sha512-LUCP5ev3GURDysTWiP47wRRUpLKMOfPh+yKTx3kVIEiu5KOMeqzpnYNsKyOoVrULivR8tLcks4+lga33Whn90A==}
-    engines: {node: ^18.0.0 || ^20.0.0 || >=22.0.0}
+  vitest@4.1.8:
+    resolution: {integrity: sha512-flY6ScbCIt9HThs+C5HS7jvGOB560DJtk/Z15IQROTA6zEy49Nh8T/dofWTQL+n3vswqn87sbJNiuqw1SDp5Ig==}
+    engines: {node: ^20.0.0 || ^22.0.0 || >=24.0.0}
     hasBin: true
     peerDependencies:
       '@edge-runtime/vm': '*'
-      '@types/debug': ^4.1.12
-      '@types/node': ^18.0.0 || ^20.0.0 || >=22.0.0
-      '@vitest/browser': 3.2.4
-      '@vitest/ui': 3.2.4
+      '@opentelemetry/api': ^1.9.0
+      '@types/node': ^20.0.0 || ^22.0.0 || >=24.0.0
+      '@vitest/browser-playwright': 4.1.8
+      '@vitest/browser-preview': 4.1.8
+      '@vitest/browser-webdriverio': 4.1.8
+      '@vitest/coverage-istanbul': 4.1.8
+      '@vitest/coverage-v8': 4.1.8
+      '@vitest/ui': 4.1.8
       happy-dom: '*'
       jsdom: '*'
+      vite: ^6.0.0 || ^7.0.0 || ^8.0.0
     peerDependenciesMeta:
       '@edge-runtime/vm':
         optional: true
-      '@types/debug':
+      '@opentelemetry/api':
         optional: true
       '@types/node':
         optional: true
-      '@vitest/browser':
+      '@vitest/browser-playwright':
+        optional: true
+      '@vitest/browser-preview':
+        optional: true
+      '@vitest/browser-webdriverio':
+        optional: true
+      '@vitest/coverage-istanbul':
+        optional: true
+      '@vitest/coverage-v8':
         optional: true
       '@vitest/ui':
         optional: true
@@ -1902,25 +1457,41 @@ packages:
   vscode-uri@3.1.0:
     resolution: {integrity: sha512-/BpdSx+yCQGnCvecbyXdxHDkuk55/G3xwnC0GqY4gmQ3j+A+g8kzzgB4Nk/SINjqn6+waqw3EgbVF2QKExkRxQ==}
 
-  vue-router@4.6.4:
-    resolution: {integrity: sha512-Hz9q5sa33Yhduglwz6g9skT8OBPii+4bFn88w6J+J4MfEo4KRRpmiNG/hHHkdbRFlLBOqxN8y8gf2Fb0MTUgVg==}
+  vue-router@5.1.0:
+    resolution: {integrity: sha512-HAbiLzLEHQwxPgvsbOJDAwtavszEgLwri6XfyrsPECIFez8+59xc9LofWVdc/HEaSRT822lJ8H9Ns38VVond5g==}
     peerDependencies:
-      vue: ^3.5.0
+      '@pinia/colada': '>=0.21.2'
+      '@vue/compiler-sfc': ^3.5.34
+      pinia: ^3.0.4
+      vite: ^7.0.0 || ^8.0.0
+      vue: ^3.5.34
+    peerDependenciesMeta:
+      '@pinia/colada':
+        optional: true
+      '@vue/compiler-sfc':
+        optional: true
+      pinia:
+        optional: true
+      vite:
+        optional: true
 
-  vue-tsc@2.2.12:
-    resolution: {integrity: sha512-P7OP77b2h/Pmk+lZdJ0YWs+5tJ6J2+uOQPo7tlBnY44QqQSPYvS0qVT4wqDJgwrZaLe47etJLLQRFia71GYITw==}
+  vue-tsc@3.3.3:
+    resolution: {integrity: sha512-SWUEG7YRUeDJHT7Xsuhf02elYX2gxPzzAII7OxDAh4KNOr4QHQ0Lls0YfnaO5GNd560CwVa2HTfdqmA5MqvRqQ==}
     hasBin: true
     peerDependencies:
       typescript: '>=5.0.0'
 
-  vue@3.5.34:
-    resolution: {integrity: sha512-WdLBG9gm02OgJIG9axd5Hpx0TFLdzVgfG2evFFu8Rur5O/IoGc5cMjnjh3tPL6GnRGsYvUhBSKVPYVcxRKpMCA==}
+  vue@3.5.35:
+    resolution: {integrity: sha512-cx89fnr+0kVGHiNFG6y6s0bdjypJRFNZn6x3WPstNdQR1bi1mbB7h4v5IBGTsPJU3nK1+0Iqj3Zf+hZWMieR4Q==}
     peerDependencies:
       typescript: '*'
     peerDependenciesMeta:
       typescript:
         optional: true
 
+  webpack-virtual-modules@0.6.2:
+    resolution: {integrity: sha512-66/V2i5hQanC51vBQKPH4aI8NMAcBW59FVBs+rC7eGHupMyfn34q7rZIE+ETlJ+XTevqfUhVVBgSUNSW2flEUQ==}
+
   which@2.0.2:
     resolution: {integrity: sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==}
     engines: {node: '>= 8'}
@@ -1939,225 +1510,100 @@ packages:
     resolution: {integrity: sha512-k8KO9hrMyNk6tUWqUfkTEZbezRRpONVOzUTnc97VnCvyj6Tf9lyUR9EDAIeiVLv56jsMcoXEwjW8Kv5yPY52lw==}
     engines: {node: '>=16.0.0'}
 
+  yaml@2.9.0:
+    resolution: {integrity: sha512-2AvhNX3mb8zd6Zy7INTtSpl1F15HW6Wnqj0srWlkKLcpYl/gMIMJiyuGq2KeI2YFxUPjdlB+3Lc10seMLtL4cA==}
+    engines: {node: '>= 14.6'}
+    hasBin: true
+
   yocto-queue@0.1.0:
     resolution: {integrity: sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==}
     engines: {node: '>=10'}
 
 snapshots:
 
-  '@babel/helper-string-parser@7.27.1': {}
-
-  '@babel/helper-validator-identifier@7.28.5': {}
-
-  '@babel/parser@7.29.3':
-    dependencies:
-      '@babel/types': 7.29.0
-
-  '@babel/types@7.29.0':
+  '@babel/generator@8.0.0-rc.6':
     dependencies:
-      '@babel/helper-string-parser': 7.27.1
-      '@babel/helper-validator-identifier': 7.28.5
-
-  '@esbuild/aix-ppc64@0.25.12':
-    optional: true
-
-  '@esbuild/aix-ppc64@0.27.7':
-    optional: true
-
-  '@esbuild/android-arm64@0.25.12':
-    optional: true
-
-  '@esbuild/android-arm64@0.27.7':
-    optional: true
-
-  '@esbuild/android-arm@0.25.12':
-    optional: true
-
-  '@esbuild/android-arm@0.27.7':
-    optional: true
-
-  '@esbuild/android-x64@0.25.12':
-    optional: true
-
-  '@esbuild/android-x64@0.27.7':
-    optional: true
-
-  '@esbuild/darwin-arm64@0.25.12':
-    optional: true
-
-  '@esbuild/darwin-arm64@0.27.7':
-    optional: true
-
-  '@esbuild/darwin-x64@0.25.12':
-    optional: true
-
-  '@esbuild/darwin-x64@0.27.7':
-    optional: true
-
-  '@esbuild/freebsd-arm64@0.25.12':
-    optional: true
-
-  '@esbuild/freebsd-arm64@0.27.7':
-    optional: true
-
-  '@esbuild/freebsd-x64@0.25.12':
-    optional: true
-
-  '@esbuild/freebsd-x64@0.27.7':
-    optional: true
-
-  '@esbuild/linux-arm64@0.25.12':
-    optional: true
-
-  '@esbuild/linux-arm64@0.27.7':
-    optional: true
-
-  '@esbuild/linux-arm@0.25.12':
-    optional: true
-
-  '@esbuild/linux-arm@0.27.7':
-    optional: true
-
-  '@esbuild/linux-ia32@0.25.12':
-    optional: true
-
-  '@esbuild/linux-ia32@0.27.7':
-    optional: true
-
-  '@esbuild/linux-loong64@0.25.12':
-    optional: true
-
-  '@esbuild/linux-loong64@0.27.7':
-    optional: true
-
-  '@esbuild/linux-mips64el@0.25.12':
-    optional: true
-
-  '@esbuild/linux-mips64el@0.27.7':
-    optional: true
-
-  '@esbuild/linux-ppc64@0.25.12':
-    optional: true
-
-  '@esbuild/linux-ppc64@0.27.7':
-    optional: true
-
-  '@esbuild/linux-riscv64@0.25.12':
-    optional: true
-
-  '@esbuild/linux-riscv64@0.27.7':
-    optional: true
-
-  '@esbuild/linux-s390x@0.25.12':
-    optional: true
-
-  '@esbuild/linux-s390x@0.27.7':
-    optional: true
-
-  '@esbuild/linux-x64@0.25.12':
-    optional: true
-
-  '@esbuild/linux-x64@0.27.7':
-    optional: true
-
-  '@esbuild/netbsd-arm64@0.25.12':
-    optional: true
-
-  '@esbuild/netbsd-arm64@0.27.7':
-    optional: true
-
-  '@esbuild/netbsd-x64@0.25.12':
-    optional: true
-
-  '@esbuild/netbsd-x64@0.27.7':
-    optional: true
-
-  '@esbuild/openbsd-arm64@0.25.12':
-    optional: true
-
-  '@esbuild/openbsd-arm64@0.27.7':
-    optional: true
-
-  '@esbuild/openbsd-x64@0.25.12':
-    optional: true
+      '@babel/parser': 8.0.0-rc.6
+      '@babel/types': 8.0.0-rc.6
+      '@jridgewell/gen-mapping': 0.3.13
+      '@jridgewell/trace-mapping': 0.3.31
+      '@types/jsesc': 2.5.1
+      jsesc: 3.1.0
 
-  '@esbuild/openbsd-x64@0.27.7':
-    optional: true
+  '@babel/helper-string-parser@7.29.7': {}
 
-  '@esbuild/openharmony-arm64@0.25.12':
-    optional: true
+  '@babel/helper-string-parser@8.0.0-rc.6': {}
 
-  '@esbuild/openharmony-arm64@0.27.7':
-    optional: true
+  '@babel/helper-validator-identifier@7.29.7': {}
 
-  '@esbuild/sunos-x64@0.25.12':
-    optional: true
+  '@babel/helper-validator-identifier@8.0.0-rc.6': {}
 
-  '@esbuild/sunos-x64@0.27.7':
-    optional: true
+  '@babel/parser@7.29.7':
+    dependencies:
+      '@babel/types': 7.29.7
 
-  '@esbuild/win32-arm64@0.25.12':
-    optional: true
+  '@babel/parser@8.0.0-rc.6':
+    dependencies:
+      '@babel/types': 8.0.0-rc.6
 
-  '@esbuild/win32-arm64@0.27.7':
-    optional: true
+  '@babel/types@7.29.7':
+    dependencies:
+      '@babel/helper-string-parser': 7.29.7
+      '@babel/helper-validator-identifier': 7.29.7
 
-  '@esbuild/win32-ia32@0.25.12':
-    optional: true
+  '@babel/types@8.0.0-rc.6':
+    dependencies:
+      '@babel/helper-string-parser': 8.0.0-rc.6
+      '@babel/helper-validator-identifier': 8.0.0-rc.6
 
-  '@esbuild/win32-ia32@0.27.7':
+  '@emnapi/core@1.10.0':
+    dependencies:
+      '@emnapi/wasi-threads': 1.2.1
+      tslib: 2.8.1
     optional: true
 
-  '@esbuild/win32-x64@0.25.12':
+  '@emnapi/runtime@1.10.0':
+    dependencies:
+      tslib: 2.8.1
     optional: true
 
-  '@esbuild/win32-x64@0.27.7':
+  '@emnapi/wasi-threads@1.2.1':
+    dependencies:
+      tslib: 2.8.1
     optional: true
 
-  '@eslint-community/eslint-utils@4.9.1(eslint@9.39.4)':
+  '@eslint-community/eslint-utils@4.9.1(eslint@10.4.1)':
     dependencies:
-      eslint: 9.39.4
+      eslint: 10.4.1
       eslint-visitor-keys: 3.4.3
 
   '@eslint-community/regexpp@4.12.2': {}
 
-  '@eslint/config-array@0.21.2':
+  '@eslint/config-array@0.23.5':
     dependencies:
-      '@eslint/object-schema': 2.1.7
+      '@eslint/object-schema': 3.0.5
       debug: 4.4.3
-      minimatch: 3.1.5
+      minimatch: 10.2.5
     transitivePeerDependencies:
       - supports-color
 
-  '@eslint/config-helpers@0.4.2':
+  '@eslint/config-helpers@0.6.0':
     dependencies:
-      '@eslint/core': 0.17.0
+      '@eslint/core': 1.2.1
 
-  '@eslint/core@0.17.0':
+  '@eslint/core@1.2.1':
     dependencies:
       '@types/json-schema': 7.0.15
 
-  '@eslint/eslintrc@3.3.5':
-    dependencies:
-      ajv: 6.15.0
-      debug: 4.4.3
-      espree: 10.4.0
-      globals: 14.0.0
-      ignore: 5.3.2
-      import-fresh: 3.3.1
-      js-yaml: 4.1.1
-      minimatch: 3.1.5
-      strip-json-comments: 3.1.1
-    transitivePeerDependencies:
-      - supports-color
-
-  '@eslint/js@9.39.4': {}
+  '@eslint/js@10.0.1(eslint@10.4.1)':
+    optionalDependencies:
+      eslint: 10.4.1
 
-  '@eslint/object-schema@2.1.7': {}
+  '@eslint/object-schema@3.0.5': {}
 
-  '@eslint/plugin-kit@0.4.1':
+  '@eslint/plugin-kit@0.7.2':
     dependencies:
-      '@eslint/core': 0.17.0
+      '@eslint/core': 1.2.1
       levn: 0.4.1
 
   '@humanfs/core@0.19.2':
@@ -2176,160 +1622,98 @@ snapshots:
 
   '@humanwhocodes/retry@0.4.3': {}
 
-  '@jridgewell/sourcemap-codec@1.5.5': {}
-
-  '@microsoft/api-extractor-model@7.33.8':
+  '@jridgewell/gen-mapping@0.3.13':
     dependencies:
-      '@microsoft/tsdoc': 0.16.0
-      '@microsoft/tsdoc-config': 0.18.1
-      '@rushstack/node-core-library': 5.23.1
-    transitivePeerDependencies:
-      - '@types/node'
-
-  '@microsoft/api-extractor@7.58.7':
-    dependencies:
-      '@microsoft/api-extractor-model': 7.33.8
-      '@microsoft/tsdoc': 0.16.0
-      '@microsoft/tsdoc-config': 0.18.1
-      '@rushstack/node-core-library': 5.23.1
-      '@rushstack/rig-package': 0.7.3
-      '@rushstack/terminal': 0.24.0
-      '@rushstack/ts-command-line': 5.3.9
-      diff: 8.0.4
-      minimatch: 10.2.3
-      resolve: 1.22.12
-      semver: 7.7.4
-      source-map: 0.6.1
-      typescript: 5.9.3
-    transitivePeerDependencies:
-      - '@types/node'
+      '@jridgewell/sourcemap-codec': 1.5.5
+      '@jridgewell/trace-mapping': 0.3.31
 
-  '@microsoft/tsdoc-config@0.18.1':
+  '@jridgewell/remapping@2.3.5':
     dependencies:
-      '@microsoft/tsdoc': 0.16.0
-      ajv: 8.18.0
-      jju: 1.4.0
-      resolve: 1.22.12
+      '@jridgewell/gen-mapping': 0.3.13
+      '@jridgewell/trace-mapping': 0.3.31
 
-  '@microsoft/tsdoc@0.16.0': {}
+  '@jridgewell/resolve-uri@3.1.2': {}
 
-  '@nodable/entities@2.1.0': {}
+  '@jridgewell/sourcemap-codec@1.5.5': {}
 
-  '@rollup/pluginutils@5.3.0(rollup@4.60.4)':
+  '@jridgewell/trace-mapping@0.3.31':
     dependencies:
-      '@types/estree': 1.0.9
-      estree-walker: 2.0.2
-      picomatch: 4.0.4
-    optionalDependencies:
-      rollup: 4.60.4
-
-  '@rollup/rollup-android-arm-eabi@4.60.4':
-    optional: true
-
-  '@rollup/rollup-android-arm64@4.60.4':
-    optional: true
-
-  '@rollup/rollup-darwin-arm64@4.60.4':
-    optional: true
-
-  '@rollup/rollup-darwin-x64@4.60.4':
-    optional: true
-
-  '@rollup/rollup-freebsd-arm64@4.60.4':
-    optional: true
-
-  '@rollup/rollup-freebsd-x64@4.60.4':
-    optional: true
+      '@jridgewell/resolve-uri': 3.1.2
+      '@jridgewell/sourcemap-codec': 1.5.5
 
-  '@rollup/rollup-linux-arm-gnueabihf@4.60.4':
-    optional: true
+  '@lucide/vue@1.17.0(vue@3.5.35(typescript@6.0.3))':
+    dependencies:
+      vue: 3.5.35(typescript@6.0.3)
 
-  '@rollup/rollup-linux-arm-musleabihf@4.60.4':
+  '@napi-rs/wasm-runtime@1.1.4(@emnapi/core@1.10.0)(@emnapi/runtime@1.10.0)':
+    dependencies:
+      '@emnapi/core': 1.10.0
+      '@emnapi/runtime': 1.10.0
+      '@tybys/wasm-util': 0.10.2
     optional: true
 
-  '@rollup/rollup-linux-arm64-gnu@4.60.4':
-    optional: true
+  '@nodable/entities@2.1.1': {}
 
-  '@rollup/rollup-linux-arm64-musl@4.60.4':
-    optional: true
+  '@oxc-project/types@0.133.0': {}
 
-  '@rollup/rollup-linux-loong64-gnu@4.60.4':
+  '@rolldown/binding-android-arm64@1.0.3':
     optional: true
 
-  '@rollup/rollup-linux-loong64-musl@4.60.4':
+  '@rolldown/binding-darwin-arm64@1.0.3':
     optional: true
 
-  '@rollup/rollup-linux-ppc64-gnu@4.60.4':
+  '@rolldown/binding-darwin-x64@1.0.3':
     optional: true
 
-  '@rollup/rollup-linux-ppc64-musl@4.60.4':
+  '@rolldown/binding-freebsd-x64@1.0.3':
     optional: true
 
-  '@rollup/rollup-linux-riscv64-gnu@4.60.4':
+  '@rolldown/binding-linux-arm-gnueabihf@1.0.3':
     optional: true
 
-  '@rollup/rollup-linux-riscv64-musl@4.60.4':
+  '@rolldown/binding-linux-arm64-gnu@1.0.3':
     optional: true
 
-  '@rollup/rollup-linux-s390x-gnu@4.60.4':
+  '@rolldown/binding-linux-arm64-musl@1.0.3':
     optional: true
 
-  '@rollup/rollup-linux-x64-gnu@4.60.4':
+  '@rolldown/binding-linux-ppc64-gnu@1.0.3':
     optional: true
 
-  '@rollup/rollup-linux-x64-musl@4.60.4':
+  '@rolldown/binding-linux-s390x-gnu@1.0.3':
     optional: true
 
-  '@rollup/rollup-openbsd-x64@4.60.4':
+  '@rolldown/binding-linux-x64-gnu@1.0.3':
     optional: true
 
-  '@rollup/rollup-openharmony-arm64@4.60.4':
+  '@rolldown/binding-linux-x64-musl@1.0.3':
     optional: true
 
-  '@rollup/rollup-win32-arm64-msvc@4.60.4':
+  '@rolldown/binding-openharmony-arm64@1.0.3':
     optional: true
 
-  '@rollup/rollup-win32-ia32-msvc@4.60.4':
+  '@rolldown/binding-wasm32-wasi@1.0.3':
+    dependencies:
+      '@emnapi/core': 1.10.0
+      '@emnapi/runtime': 1.10.0
+      '@napi-rs/wasm-runtime': 1.1.4(@emnapi/core@1.10.0)(@emnapi/runtime@1.10.0)
     optional: true
 
-  '@rollup/rollup-win32-x64-gnu@4.60.4':
+  '@rolldown/binding-win32-arm64-msvc@1.0.3':
     optional: true
 
-  '@rollup/rollup-win32-x64-msvc@4.60.4':
+  '@rolldown/binding-win32-x64-msvc@1.0.3':
     optional: true
 
-  '@rushstack/node-core-library@5.23.1':
-    dependencies:
-      ajv: 8.18.0
-      ajv-draft-04: 1.0.0(ajv@8.18.0)
-      ajv-formats: 3.0.1(ajv@8.18.0)
-      fs-extra: 11.3.5
-      import-lazy: 4.0.0
-      jju: 1.4.0
-      resolve: 1.22.12
-      semver: 7.7.4
-
-  '@rushstack/problem-matcher@0.2.1': {}
-
-  '@rushstack/rig-package@0.7.3':
-    dependencies:
-      jju: 1.4.0
-      resolve: 1.22.12
+  '@rolldown/pluginutils@1.0.1': {}
 
-  '@rushstack/terminal@0.24.0':
+  '@rollup/pluginutils@5.4.0':
     dependencies:
-      '@rushstack/node-core-library': 5.23.1
-      '@rushstack/problem-matcher': 0.2.1
-      supports-color: 8.1.1
+      '@types/estree': 1.0.9
+      estree-walker: 2.0.2
+      picomatch: 4.0.4
 
-  '@rushstack/ts-command-line@5.3.9':
-    dependencies:
-      '@rushstack/terminal': 0.24.0
-      '@types/argparse': 1.0.38
-      argparse: 1.0.10
-      string-argv: 0.3.2
-    transitivePeerDependencies:
-      - '@types/node'
+  '@standard-schema/spec@1.1.0': {}
 
   '@tauri-apps/api@2.11.0': {}
 
@@ -2380,25 +1764,28 @@ snapshots:
       '@tauri-apps/cli-win32-ia32-msvc': 2.11.2
       '@tauri-apps/cli-win32-x64-msvc': 2.11.2
 
-  '@turbo/darwin-64@2.9.14':
+  '@turbo/darwin-64@2.9.16':
     optional: true
 
-  '@turbo/darwin-arm64@2.9.14':
+  '@turbo/darwin-arm64@2.9.16':
     optional: true
 
-  '@turbo/linux-64@2.9.14':
+  '@turbo/linux-64@2.9.16':
     optional: true
 
-  '@turbo/linux-arm64@2.9.14':
+  '@turbo/linux-arm64@2.9.16':
     optional: true
 
-  '@turbo/windows-64@2.9.14':
+  '@turbo/windows-64@2.9.16':
     optional: true
 
-  '@turbo/windows-arm64@2.9.14':
+  '@turbo/windows-arm64@2.9.16':
     optional: true
 
-  '@types/argparse@1.0.38': {}
+  '@tybys/wasm-util@0.10.2':
+    dependencies:
+      tslib: 2.8.1
+    optional: true
 
   '@types/chai@5.2.3':
     dependencies:
@@ -2407,215 +1794,212 @@ snapshots:
 
   '@types/deep-eql@4.0.2': {}
 
-  '@types/estree@1.0.8': {}
+  '@types/esrecurse@4.3.1': {}
 
   '@types/estree@1.0.9': {}
 
+  '@types/jsesc@2.5.1': {}
+
   '@types/json-schema@7.0.15': {}
 
-  '@typescript-eslint/eslint-plugin@8.59.4(@typescript-eslint/parser@8.59.4(eslint@9.39.4)(typescript@5.9.3))(eslint@9.39.4)(typescript@5.9.3)':
+  '@typescript-eslint/eslint-plugin@8.60.1(@typescript-eslint/parser@8.60.1(eslint@10.4.1)(typescript@6.0.3))(eslint@10.4.1)(typescript@6.0.3)':
     dependencies:
       '@eslint-community/regexpp': 4.12.2
-      '@typescript-eslint/parser': 8.59.4(eslint@9.39.4)(typescript@5.9.3)
-      '@typescript-eslint/scope-manager': 8.59.4
-      '@typescript-eslint/type-utils': 8.59.4(eslint@9.39.4)(typescript@5.9.3)
-      '@typescript-eslint/utils': 8.59.4(eslint@9.39.4)(typescript@5.9.3)
-      '@typescript-eslint/visitor-keys': 8.59.4
-      eslint: 9.39.4
+      '@typescript-eslint/parser': 8.60.1(eslint@10.4.1)(typescript@6.0.3)
+      '@typescript-eslint/scope-manager': 8.60.1
+      '@typescript-eslint/type-utils': 8.60.1(eslint@10.4.1)(typescript@6.0.3)
+      '@typescript-eslint/utils': 8.60.1(eslint@10.4.1)(typescript@6.0.3)
+      '@typescript-eslint/visitor-keys': 8.60.1
+      eslint: 10.4.1
       ignore: 7.0.5
       natural-compare: 1.4.0
-      ts-api-utils: 2.5.0(typescript@5.9.3)
-      typescript: 5.9.3
+      ts-api-utils: 2.5.0(typescript@6.0.3)
+      typescript: 6.0.3
     transitivePeerDependencies:
       - supports-color
 
-  '@typescript-eslint/parser@8.59.4(eslint@9.39.4)(typescript@5.9.3)':
+  '@typescript-eslint/parser@8.60.1(eslint@10.4.1)(typescript@6.0.3)':
     dependencies:
-      '@typescript-eslint/scope-manager': 8.59.4
-      '@typescript-eslint/types': 8.59.4
-      '@typescript-eslint/typescript-estree': 8.59.4(typescript@5.9.3)
-      '@typescript-eslint/visitor-keys': 8.59.4
+      '@typescript-eslint/scope-manager': 8.60.1
+      '@typescript-eslint/types': 8.60.1
+      '@typescript-eslint/typescript-estree': 8.60.1(typescript@6.0.3)
+      '@typescript-eslint/visitor-keys': 8.60.1
       debug: 4.4.3
-      eslint: 9.39.4
-      typescript: 5.9.3
+      eslint: 10.4.1
+      typescript: 6.0.3
     transitivePeerDependencies:
       - supports-color
 
-  '@typescript-eslint/project-service@8.59.4(typescript@5.9.3)':
+  '@typescript-eslint/project-service@8.60.1(typescript@6.0.3)':
     dependencies:
-      '@typescript-eslint/tsconfig-utils': 8.59.4(typescript@5.9.3)
-      '@typescript-eslint/types': 8.59.4
+      '@typescript-eslint/tsconfig-utils': 8.60.1(typescript@6.0.3)
+      '@typescript-eslint/types': 8.60.1
       debug: 4.4.3
-      typescript: 5.9.3
+      typescript: 6.0.3
     transitivePeerDependencies:
       - supports-color
 
-  '@typescript-eslint/scope-manager@8.59.4':
+  '@typescript-eslint/scope-manager@8.60.1':
     dependencies:
-      '@typescript-eslint/types': 8.59.4
-      '@typescript-eslint/visitor-keys': 8.59.4
+      '@typescript-eslint/types': 8.60.1
+      '@typescript-eslint/visitor-keys': 8.60.1
 
-  '@typescript-eslint/tsconfig-utils@8.59.4(typescript@5.9.3)':
+  '@typescript-eslint/tsconfig-utils@8.60.1(typescript@6.0.3)':
     dependencies:
-      typescript: 5.9.3
+      typescript: 6.0.3
 
-  '@typescript-eslint/type-utils@8.59.4(eslint@9.39.4)(typescript@5.9.3)':
+  '@typescript-eslint/type-utils@8.60.1(eslint@10.4.1)(typescript@6.0.3)':
     dependencies:
-      '@typescript-eslint/types': 8.59.4
-      '@typescript-eslint/typescript-estree': 8.59.4(typescript@5.9.3)
-      '@typescript-eslint/utils': 8.59.4(eslint@9.39.4)(typescript@5.9.3)
+      '@typescript-eslint/types': 8.60.1
+      '@typescript-eslint/typescript-estree': 8.60.1(typescript@6.0.3)
+      '@typescript-eslint/utils': 8.60.1(eslint@10.4.1)(typescript@6.0.3)
       debug: 4.4.3
-      eslint: 9.39.4
-      ts-api-utils: 2.5.0(typescript@5.9.3)
-      typescript: 5.9.3
+      eslint: 10.4.1
+      ts-api-utils: 2.5.0(typescript@6.0.3)
+      typescript: 6.0.3
     transitivePeerDependencies:
       - supports-color
 
-  '@typescript-eslint/types@8.59.4': {}
+  '@typescript-eslint/types@8.60.1': {}
 
-  '@typescript-eslint/typescript-estree@8.59.4(typescript@5.9.3)':
+  '@typescript-eslint/typescript-estree@8.60.1(typescript@6.0.3)':
     dependencies:
-      '@typescript-eslint/project-service': 8.59.4(typescript@5.9.3)
-      '@typescript-eslint/tsconfig-utils': 8.59.4(typescript@5.9.3)
-      '@typescript-eslint/types': 8.59.4
-      '@typescript-eslint/visitor-keys': 8.59.4
+      '@typescript-eslint/project-service': 8.60.1(typescript@6.0.3)
+      '@typescript-eslint/tsconfig-utils': 8.60.1(typescript@6.0.3)
+      '@typescript-eslint/types': 8.60.1
+      '@typescript-eslint/visitor-keys': 8.60.1
       debug: 4.4.3
       minimatch: 10.2.5
-      semver: 7.8.0
-      tinyglobby: 0.2.16
-      ts-api-utils: 2.5.0(typescript@5.9.3)
-      typescript: 5.9.3
+      semver: 7.8.2
+      tinyglobby: 0.2.17
+      ts-api-utils: 2.5.0(typescript@6.0.3)
+      typescript: 6.0.3
     transitivePeerDependencies:
       - supports-color
 
-  '@typescript-eslint/utils@8.59.4(eslint@9.39.4)(typescript@5.9.3)':
+  '@typescript-eslint/utils@8.60.1(eslint@10.4.1)(typescript@6.0.3)':
     dependencies:
-      '@eslint-community/eslint-utils': 4.9.1(eslint@9.39.4)
-      '@typescript-eslint/scope-manager': 8.59.4
-      '@typescript-eslint/types': 8.59.4
-      '@typescript-eslint/typescript-estree': 8.59.4(typescript@5.9.3)
-      eslint: 9.39.4
-      typescript: 5.9.3
+      '@eslint-community/eslint-utils': 4.9.1(eslint@10.4.1)
+      '@typescript-eslint/scope-manager': 8.60.1
+      '@typescript-eslint/types': 8.60.1
+      '@typescript-eslint/typescript-estree': 8.60.1(typescript@6.0.3)
+      eslint: 10.4.1
+      typescript: 6.0.3
     transitivePeerDependencies:
       - supports-color
 
-  '@typescript-eslint/visitor-keys@8.59.4':
+  '@typescript-eslint/visitor-keys@8.60.1':
     dependencies:
-      '@typescript-eslint/types': 8.59.4
+      '@typescript-eslint/types': 8.60.1
       eslint-visitor-keys: 5.0.1
 
-  '@vitejs/plugin-vue@5.2.4(vite@6.4.2)(vue@3.5.34(typescript@5.9.3))':
+  '@vitejs/plugin-vue@6.0.7(vite@8.0.16(yaml@2.9.0))(vue@3.5.35(typescript@6.0.3))':
     dependencies:
-      vite: 6.4.2
-      vue: 3.5.34(typescript@5.9.3)
+      '@rolldown/pluginutils': 1.0.1
+      vite: 8.0.16(yaml@2.9.0)
+      vue: 3.5.35(typescript@6.0.3)
 
-  '@vitest/expect@3.2.4':
+  '@vitest/expect@4.1.8':
     dependencies:
+      '@standard-schema/spec': 1.1.0
       '@types/chai': 5.2.3
-      '@vitest/spy': 3.2.4
-      '@vitest/utils': 3.2.4
-      chai: 5.3.3
-      tinyrainbow: 2.0.0
+      '@vitest/spy': 4.1.8
+      '@vitest/utils': 4.1.8
+      chai: 6.2.2
+      tinyrainbow: 3.1.0
 
-  '@vitest/mocker@3.2.4(vite@7.3.3)':
+  '@vitest/mocker@4.1.8(vite@8.0.16(yaml@2.9.0))':
     dependencies:
-      '@vitest/spy': 3.2.4
+      '@vitest/spy': 4.1.8
       estree-walker: 3.0.3
       magic-string: 0.30.21
     optionalDependencies:
-      vite: 7.3.3
+      vite: 8.0.16(yaml@2.9.0)
 
-  '@vitest/pretty-format@3.2.4':
+  '@vitest/pretty-format@4.1.8':
     dependencies:
-      tinyrainbow: 2.0.0
+      tinyrainbow: 3.1.0
 
-  '@vitest/runner@3.2.4':
+  '@vitest/runner@4.1.8':
     dependencies:
-      '@vitest/utils': 3.2.4
+      '@vitest/utils': 4.1.8
       pathe: 2.0.3
-      strip-literal: 3.1.0
 
-  '@vitest/snapshot@3.2.4':
+  '@vitest/snapshot@4.1.8':
     dependencies:
-      '@vitest/pretty-format': 3.2.4
+      '@vitest/pretty-format': 4.1.8
+      '@vitest/utils': 4.1.8
       magic-string: 0.30.21
       pathe: 2.0.3
 
-  '@vitest/spy@3.2.4':
-    dependencies:
-      tinyspy: 4.0.4
-
-  '@vitest/utils@3.2.4':
-    dependencies:
-      '@vitest/pretty-format': 3.2.4
-      loupe: 3.2.1
-      tinyrainbow: 2.0.0
+  '@vitest/spy@4.1.8': {}
 
-  '@volar/language-core@2.4.15':
+  '@vitest/utils@4.1.8':
     dependencies:
-      '@volar/source-map': 2.4.15
+      '@vitest/pretty-format': 4.1.8
+      convert-source-map: 2.0.0
+      tinyrainbow: 3.1.0
 
   '@volar/language-core@2.4.28':
     dependencies:
       '@volar/source-map': 2.4.28
 
-  '@volar/source-map@2.4.15': {}
-
   '@volar/source-map@2.4.28': {}
 
-  '@volar/typescript@2.4.15':
-    dependencies:
-      '@volar/language-core': 2.4.15
-      path-browserify: 1.0.1
-      vscode-uri: 3.1.0
-
   '@volar/typescript@2.4.28':
     dependencies:
       '@volar/language-core': 2.4.28
       path-browserify: 1.0.1
       vscode-uri: 3.1.0
 
-  '@vue/compiler-core@3.5.34':
+  '@vue-macros/common@3.1.2(vue@3.5.35(typescript@6.0.3))':
     dependencies:
-      '@babel/parser': 7.29.3
-      '@vue/shared': 3.5.34
+      '@vue/compiler-sfc': 3.5.35
+      ast-kit: 2.2.0
+      local-pkg: 1.2.1
+      magic-string-ast: 1.0.3
+      unplugin-utils: 0.3.1
+    optionalDependencies:
+      vue: 3.5.35(typescript@6.0.3)
+
+  '@vue/compiler-core@3.5.35':
+    dependencies:
+      '@babel/parser': 7.29.7
+      '@vue/shared': 3.5.35
       entities: 7.0.1
       estree-walker: 2.0.2
       source-map-js: 1.2.1
 
-  '@vue/compiler-dom@3.5.34':
+  '@vue/compiler-dom@3.5.35':
     dependencies:
-      '@vue/compiler-core': 3.5.34
-      '@vue/shared': 3.5.34
+      '@vue/compiler-core': 3.5.35
+      '@vue/shared': 3.5.35
 
-  '@vue/compiler-sfc@3.5.34':
+  '@vue/compiler-sfc@3.5.35':
     dependencies:
-      '@babel/parser': 7.29.3
-      '@vue/compiler-core': 3.5.34
-      '@vue/compiler-dom': 3.5.34
-      '@vue/compiler-ssr': 3.5.34
-      '@vue/shared': 3.5.34
+      '@babel/parser': 7.29.7
+      '@vue/compiler-core': 3.5.35
+      '@vue/compiler-dom': 3.5.35
+      '@vue/compiler-ssr': 3.5.35
+      '@vue/shared': 3.5.35
       estree-walker: 2.0.2
       magic-string: 0.30.21
-      postcss: 8.5.14
+      postcss: 8.5.15
       source-map-js: 1.2.1
 
-  '@vue/compiler-ssr@3.5.34':
-    dependencies:
-      '@vue/compiler-dom': 3.5.34
-      '@vue/shared': 3.5.34
-
-  '@vue/compiler-vue2@2.7.16':
+  '@vue/compiler-ssr@3.5.35':
     dependencies:
-      de-indent: 1.0.2
-      he: 1.2.0
-
-  '@vue/devtools-api@6.6.4': {}
+      '@vue/compiler-dom': 3.5.35
+      '@vue/shared': 3.5.35
 
   '@vue/devtools-api@7.7.9':
     dependencies:
       '@vue/devtools-kit': 7.7.9
 
+  '@vue/devtools-api@8.1.2':
+    dependencies:
+      '@vue/devtools-kit': 8.1.2
+
   '@vue/devtools-kit@7.7.9':
     dependencies:
       '@vue/devtools-shared': 7.7.9
@@ -2626,59 +2010,52 @@ snapshots:
       speakingurl: 14.0.1
       superjson: 2.2.6
 
+  '@vue/devtools-kit@8.1.2':
+    dependencies:
+      '@vue/devtools-shared': 8.1.2
+      birpc: 2.9.0
+      hookable: 5.5.3
+      perfect-debounce: 2.1.0
+
   '@vue/devtools-shared@7.7.9':
     dependencies:
       rfdc: 1.4.1
 
-  '@vue/language-core@2.2.0(typescript@5.9.3)':
-    dependencies:
-      '@volar/language-core': 2.4.28
-      '@vue/compiler-dom': 3.5.34
-      '@vue/compiler-vue2': 2.7.16
-      '@vue/shared': 3.5.34
-      alien-signals: 0.4.14
-      minimatch: 9.0.9
-      muggle-string: 0.4.1
-      path-browserify: 1.0.1
-    optionalDependencies:
-      typescript: 5.9.3
+  '@vue/devtools-shared@8.1.2': {}
 
-  '@vue/language-core@2.2.12(typescript@5.9.3)':
+  '@vue/language-core@3.3.3':
     dependencies:
-      '@volar/language-core': 2.4.15
-      '@vue/compiler-dom': 3.5.34
-      '@vue/compiler-vue2': 2.7.16
-      '@vue/shared': 3.5.34
-      alien-signals: 1.0.13
-      minimatch: 9.0.9
+      '@volar/language-core': 2.4.28
+      '@vue/compiler-dom': 3.5.35
+      '@vue/shared': 3.5.35
+      alien-signals: 3.2.1
       muggle-string: 0.4.1
       path-browserify: 1.0.1
-    optionalDependencies:
-      typescript: 5.9.3
+      picomatch: 4.0.4
 
-  '@vue/reactivity@3.5.34':
+  '@vue/reactivity@3.5.35':
     dependencies:
-      '@vue/shared': 3.5.34
+      '@vue/shared': 3.5.35
 
-  '@vue/runtime-core@3.5.34':
+  '@vue/runtime-core@3.5.35':
     dependencies:
-      '@vue/reactivity': 3.5.34
-      '@vue/shared': 3.5.34
+      '@vue/reactivity': 3.5.35
+      '@vue/shared': 3.5.35
 
-  '@vue/runtime-dom@3.5.34':
+  '@vue/runtime-dom@3.5.35':
     dependencies:
-      '@vue/reactivity': 3.5.34
-      '@vue/runtime-core': 3.5.34
-      '@vue/shared': 3.5.34
+      '@vue/reactivity': 3.5.35
+      '@vue/runtime-core': 3.5.35
+      '@vue/shared': 3.5.35
       csstype: 3.2.3
 
-  '@vue/server-renderer@3.5.34(vue@3.5.34(typescript@5.9.3))':
+  '@vue/server-renderer@3.5.35(vue@3.5.35(typescript@6.0.3))':
     dependencies:
-      '@vue/compiler-ssr': 3.5.34
-      '@vue/shared': 3.5.34
-      vue: 3.5.34(typescript@5.9.3)
+      '@vue/compiler-ssr': 3.5.35
+      '@vue/shared': 3.5.35
+      vue: 3.5.35(typescript@6.0.3)
 
-  '@vue/shared@3.5.34': {}
+  '@vue/shared@3.5.35': {}
 
   acorn-jsx@5.3.2(acorn@8.16.0):
     dependencies:
@@ -2686,14 +2063,6 @@ snapshots:
 
   acorn@8.16.0: {}
 
-  ajv-draft-04@1.0.0(ajv@8.18.0):
-    optionalDependencies:
-      ajv: 8.18.0
-
-  ajv-formats@3.0.1(ajv@8.18.0):
-    optionalDependencies:
-      ajv: 8.18.0
-
   ajv@6.15.0:
     dependencies:
       fast-deep-equal: 3.1.3
@@ -2701,81 +2070,43 @@ snapshots:
       json-schema-traverse: 0.4.1
       uri-js: 4.4.1
 
-  ajv@8.18.0:
-    dependencies:
-      fast-deep-equal: 3.1.3
-      fast-uri: 3.1.2
-      json-schema-traverse: 1.0.0
-      require-from-string: 2.0.2
+  alien-signals@3.2.1: {}
 
-  alien-signals@0.4.14: {}
-
-  alien-signals@1.0.13: {}
+  assertion-error@2.0.1: {}
 
-  ansi-styles@4.3.0:
+  ast-kit@2.2.0:
     dependencies:
-      color-convert: 2.0.1
+      '@babel/parser': 7.29.7
+      pathe: 2.0.3
 
-  argparse@1.0.10:
+  ast-walker-scope@0.9.0:
     dependencies:
-      sprintf-js: 1.0.3
-
-  argparse@2.0.1: {}
-
-  assertion-error@2.0.1: {}
-
-  balanced-match@1.0.2: {}
+      '@babel/parser': 7.29.7
+      '@babel/types': 7.29.7
+      ast-kit: 2.2.0
 
   balanced-match@4.0.4: {}
 
   birpc@2.9.0: {}
 
-  brace-expansion@1.1.14:
-    dependencies:
-      balanced-match: 1.0.2
-      concat-map: 0.0.1
-
-  brace-expansion@2.1.0:
-    dependencies:
-      balanced-match: 1.0.2
-
   brace-expansion@5.0.6:
     dependencies:
       balanced-match: 4.0.4
 
-  cac@6.7.14: {}
-
-  callsites@3.1.0: {}
-
-  chai@5.3.3:
-    dependencies:
-      assertion-error: 2.0.1
-      check-error: 2.1.3
-      deep-eql: 5.0.2
-      loupe: 3.2.1
-      pathval: 2.0.1
-
-  chalk@4.1.2:
-    dependencies:
-      ansi-styles: 4.3.0
-      supports-color: 7.2.0
-
-  check-error@2.1.3: {}
+  chai@6.2.2: {}
 
-  color-convert@2.0.1:
+  chokidar@5.0.0:
     dependencies:
-      color-name: 1.1.4
-
-  color-name@1.1.4: {}
+      readdirp: 5.0.0
 
   compare-versions@6.1.1: {}
 
-  concat-map@0.0.1: {}
-
   confbox@0.1.8: {}
 
   confbox@0.2.4: {}
 
+  convert-source-map@2.0.0: {}
+
   copy-anything@4.0.5:
     dependencies:
       is-what: 5.5.0
@@ -2788,117 +2119,50 @@ snapshots:
 
   csstype@3.2.3: {}
 
-  de-indent@1.0.2: {}
-
   debug@4.4.3:
     dependencies:
       ms: 2.1.3
 
-  deep-eql@5.0.2: {}
-
   deep-is@0.1.4: {}
 
-  diff@8.0.4: {}
+  detect-libc@2.1.2: {}
 
   entities@7.0.1: {}
 
-  es-errors@1.3.0: {}
-
-  es-module-lexer@1.7.0: {}
-
-  esbuild@0.25.12:
-    optionalDependencies:
-      '@esbuild/aix-ppc64': 0.25.12
-      '@esbuild/android-arm': 0.25.12
-      '@esbuild/android-arm64': 0.25.12
-      '@esbuild/android-x64': 0.25.12
-      '@esbuild/darwin-arm64': 0.25.12
-      '@esbuild/darwin-x64': 0.25.12
-      '@esbuild/freebsd-arm64': 0.25.12
-      '@esbuild/freebsd-x64': 0.25.12
-      '@esbuild/linux-arm': 0.25.12
-      '@esbuild/linux-arm64': 0.25.12
-      '@esbuild/linux-ia32': 0.25.12
-      '@esbuild/linux-loong64': 0.25.12
-      '@esbuild/linux-mips64el': 0.25.12
-      '@esbuild/linux-ppc64': 0.25.12
-      '@esbuild/linux-riscv64': 0.25.12
-      '@esbuild/linux-s390x': 0.25.12
-      '@esbuild/linux-x64': 0.25.12
-      '@esbuild/netbsd-arm64': 0.25.12
-      '@esbuild/netbsd-x64': 0.25.12
-      '@esbuild/openbsd-arm64': 0.25.12
-      '@esbuild/openbsd-x64': 0.25.12
-      '@esbuild/openharmony-arm64': 0.25.12
-      '@esbuild/sunos-x64': 0.25.12
-      '@esbuild/win32-arm64': 0.25.12
-      '@esbuild/win32-ia32': 0.25.12
-      '@esbuild/win32-x64': 0.25.12
-
-  esbuild@0.27.7:
-    optionalDependencies:
-      '@esbuild/aix-ppc64': 0.27.7
-      '@esbuild/android-arm': 0.27.7
-      '@esbuild/android-arm64': 0.27.7
-      '@esbuild/android-x64': 0.27.7
-      '@esbuild/darwin-arm64': 0.27.7
-      '@esbuild/darwin-x64': 0.27.7
-      '@esbuild/freebsd-arm64': 0.27.7
-      '@esbuild/freebsd-x64': 0.27.7
-      '@esbuild/linux-arm': 0.27.7
-      '@esbuild/linux-arm64': 0.27.7
-      '@esbuild/linux-ia32': 0.27.7
-      '@esbuild/linux-loong64': 0.27.7
-      '@esbuild/linux-mips64el': 0.27.7
-      '@esbuild/linux-ppc64': 0.27.7
-      '@esbuild/linux-riscv64': 0.27.7
-      '@esbuild/linux-s390x': 0.27.7
-      '@esbuild/linux-x64': 0.27.7
-      '@esbuild/netbsd-arm64': 0.27.7
-      '@esbuild/netbsd-x64': 0.27.7
-      '@esbuild/openbsd-arm64': 0.27.7
-      '@esbuild/openbsd-x64': 0.27.7
-      '@esbuild/openharmony-arm64': 0.27.7
-      '@esbuild/sunos-x64': 0.27.7
-      '@esbuild/win32-arm64': 0.27.7
-      '@esbuild/win32-ia32': 0.27.7
-      '@esbuild/win32-x64': 0.27.7
+  es-module-lexer@2.1.0: {}
 
   escape-string-regexp@4.0.0: {}
 
-  eslint-scope@8.4.0:
+  eslint-scope@9.1.2:
     dependencies:
+      '@types/esrecurse': 4.3.1
+      '@types/estree': 1.0.9
       esrecurse: 4.3.0
       estraverse: 5.3.0
 
   eslint-visitor-keys@3.4.3: {}
 
-  eslint-visitor-keys@4.2.1: {}
-
   eslint-visitor-keys@5.0.1: {}
 
-  eslint@9.39.4:
+  eslint@10.4.1:
     dependencies:
-      '@eslint-community/eslint-utils': 4.9.1(eslint@9.39.4)
+      '@eslint-community/eslint-utils': 4.9.1(eslint@10.4.1)
       '@eslint-community/regexpp': 4.12.2
-      '@eslint/config-array': 0.21.2
-      '@eslint/config-helpers': 0.4.2
-      '@eslint/core': 0.17.0
-      '@eslint/eslintrc': 3.3.5
-      '@eslint/js': 9.39.4
-      '@eslint/plugin-kit': 0.4.1
+      '@eslint/config-array': 0.23.5
+      '@eslint/config-helpers': 0.6.0
+      '@eslint/core': 1.2.1
+      '@eslint/plugin-kit': 0.7.2
       '@humanfs/node': 0.16.8
       '@humanwhocodes/module-importer': 1.0.1
       '@humanwhocodes/retry': 0.4.3
       '@types/estree': 1.0.9
       ajv: 6.15.0
-      chalk: 4.1.2
       cross-spawn: 7.0.6
       debug: 4.4.3
       escape-string-regexp: 4.0.0
-      eslint-scope: 8.4.0
-      eslint-visitor-keys: 4.2.1
-      espree: 10.4.0
+      eslint-scope: 9.1.2
+      eslint-visitor-keys: 5.0.1
+      espree: 11.2.0
       esquery: 1.7.0
       esutils: 2.0.3
       fast-deep-equal: 3.1.3
@@ -2909,18 +2173,17 @@ snapshots:
       imurmurhash: 0.1.4
       is-glob: 4.0.3
       json-stable-stringify-without-jsonify: 1.0.1
-      lodash.merge: 4.6.2
-      minimatch: 3.1.5
+      minimatch: 10.2.5
       natural-compare: 1.4.0
       optionator: 0.9.4
     transitivePeerDependencies:
       - supports-color
 
-  espree@10.4.0:
+  espree@11.2.0:
     dependencies:
       acorn: 8.16.0
       acorn-jsx: 5.3.2(acorn@8.16.0)
-      eslint-visitor-keys: 4.2.1
+      eslint-visitor-keys: 5.0.1
 
   esquery@1.7.0:
     dependencies:
@@ -2950,8 +2213,6 @@ snapshots:
 
   fast-levenshtein@2.0.6: {}
 
-  fast-uri@3.1.2: {}
-
   fast-xml-builder@1.2.0:
     dependencies:
       path-expression-matcher: 1.5.0
@@ -2959,7 +2220,7 @@ snapshots:
 
   fast-xml-parser@5.8.0:
     dependencies:
-      '@nodable/entities': 2.1.0
+      '@nodable/entities': 2.1.1
       fast-xml-builder: 1.2.0
       path-expression-matcher: 1.5.0
       strnum: 2.3.0
@@ -2985,52 +2246,21 @@ snapshots:
 
   flatted@3.4.2: {}
 
-  fs-extra@11.3.5:
-    dependencies:
-      graceful-fs: 4.2.11
-      jsonfile: 6.2.1
-      universalify: 2.0.1
-
   fsevents@2.3.3:
     optional: true
 
-  function-bind@1.1.2: {}
-
   glob-parent@6.0.2:
     dependencies:
       is-glob: 4.0.3
 
-  globals@14.0.0: {}
-
-  graceful-fs@4.2.11: {}
-
-  has-flag@4.0.0: {}
-
-  hasown@2.0.3:
-    dependencies:
-      function-bind: 1.1.2
-
-  he@1.2.0: {}
-
   hookable@5.5.3: {}
 
   ignore@5.3.2: {}
 
   ignore@7.0.5: {}
 
-  import-fresh@3.3.1:
-    dependencies:
-      parent-module: 1.0.1
-      resolve-from: 4.0.0
-
-  import-lazy@4.0.0: {}
-
   imurmurhash@0.1.4: {}
 
-  is-core-module@2.16.2:
-    dependencies:
-      hasown: 2.0.3
-
   is-extglob@2.1.1: {}
 
   is-glob@4.0.3:
@@ -3041,27 +2271,15 @@ snapshots:
 
   isexe@2.0.0: {}
 
-  jju@1.4.0: {}
-
-  js-tokens@9.0.1: {}
-
-  js-yaml@4.1.1:
-    dependencies:
-      argparse: 2.0.1
+  jsesc@3.1.0: {}
 
   json-buffer@3.0.1: {}
 
   json-schema-traverse@0.4.1: {}
 
-  json-schema-traverse@1.0.0: {}
-
   json-stable-stringify-without-jsonify@1.0.1: {}
 
-  jsonfile@6.2.1:
-    dependencies:
-      universalify: 2.0.1
-    optionalDependencies:
-      graceful-fs: 4.2.11
+  json5@2.2.3: {}
 
   keyv@4.5.4:
     dependencies:
@@ -3074,7 +2292,56 @@ snapshots:
       prelude-ls: 1.2.1
       type-check: 0.4.0
 
-  local-pkg@1.1.2:
+  lightningcss-android-arm64@1.32.0:
+    optional: true
+
+  lightningcss-darwin-arm64@1.32.0:
+    optional: true
+
+  lightningcss-darwin-x64@1.32.0:
+    optional: true
+
+  lightningcss-freebsd-x64@1.32.0:
+    optional: true
+
+  lightningcss-linux-arm-gnueabihf@1.32.0:
+    optional: true
+
+  lightningcss-linux-arm64-gnu@1.32.0:
+    optional: true
+
+  lightningcss-linux-arm64-musl@1.32.0:
+    optional: true
+
+  lightningcss-linux-x64-gnu@1.32.0:
+    optional: true
+
+  lightningcss-linux-x64-musl@1.32.0:
+    optional: true
+
+  lightningcss-win32-arm64-msvc@1.32.0:
+    optional: true
+
+  lightningcss-win32-x64-msvc@1.32.0:
+    optional: true
+
+  lightningcss@1.32.0:
+    dependencies:
+      detect-libc: 2.1.2
+    optionalDependencies:
+      lightningcss-android-arm64: 1.32.0
+      lightningcss-darwin-arm64: 1.32.0
+      lightningcss-darwin-x64: 1.32.0
+      lightningcss-freebsd-x64: 1.32.0
+      lightningcss-linux-arm-gnueabihf: 1.32.0
+      lightningcss-linux-arm64-gnu: 1.32.0
+      lightningcss-linux-arm64-musl: 1.32.0
+      lightningcss-linux-x64-gnu: 1.32.0
+      lightningcss-linux-x64-musl: 1.32.0
+      lightningcss-win32-arm64-msvc: 1.32.0
+      lightningcss-win32-x64-msvc: 1.32.0
+
+  local-pkg@1.2.1:
     dependencies:
       mlly: 1.8.2
       pkg-types: 2.3.1
@@ -3084,34 +2351,18 @@ snapshots:
     dependencies:
       p-locate: 5.0.0
 
-  lodash.merge@4.6.2: {}
-
-  loupe@3.2.1: {}
-
-  lucide-vue-next@1.0.0(vue@3.5.34(typescript@5.9.3)):
+  magic-string-ast@1.0.3:
     dependencies:
-      vue: 3.5.34(typescript@5.9.3)
+      magic-string: 0.30.21
 
   magic-string@0.30.21:
     dependencies:
       '@jridgewell/sourcemap-codec': 1.5.5
 
-  minimatch@10.2.3:
-    dependencies:
-      brace-expansion: 5.0.6
-
   minimatch@10.2.5:
     dependencies:
       brace-expansion: 5.0.6
 
-  minimatch@3.1.5:
-    dependencies:
-      brace-expansion: 1.1.14
-
-  minimatch@9.0.9:
-    dependencies:
-      brace-expansion: 2.1.0
-
   mitt@3.0.1: {}
 
   mlly@1.8.2:
@@ -3129,6 +2380,8 @@ snapshots:
 
   natural-compare@1.4.0: {}
 
+  obug@2.1.2: {}
+
   optionator@0.9.4:
     dependencies:
       deep-is: 0.1.4
@@ -3146,10 +2399,6 @@ snapshots:
     dependencies:
       p-limit: 3.1.0
 
-  parent-module@1.0.1:
-    dependencies:
-      callsites: 3.1.0
-
   path-browserify@1.0.1: {}
 
   path-exists@4.0.0: {}
@@ -3158,24 +2407,22 @@ snapshots:
 
   path-key@3.1.1: {}
 
-  path-parse@1.0.7: {}
-
   pathe@2.0.3: {}
 
-  pathval@2.0.1: {}
-
   perfect-debounce@1.0.0: {}
 
+  perfect-debounce@2.1.0: {}
+
   picocolors@1.1.1: {}
 
   picomatch@4.0.4: {}
 
-  pinia@3.0.4(typescript@5.9.3)(vue@3.5.34(typescript@5.9.3)):
+  pinia@3.0.4(typescript@6.0.3)(vue@3.5.35(typescript@6.0.3)):
     dependencies:
       '@vue/devtools-api': 7.7.9
-      vue: 3.5.34(typescript@5.9.3)
+      vue: 3.5.35(typescript@6.0.3)
     optionalDependencies:
-      typescript: 5.9.3
+      typescript: 6.0.3
 
   pkg-types@1.3.1:
     dependencies:
@@ -3189,7 +2436,7 @@ snapshots:
       exsolve: 1.0.8
       pathe: 2.0.3
 
-  postcss@8.5.14:
+  postcss@8.5.15:
     dependencies:
       nanoid: 3.3.12
       picocolors: 1.1.1
@@ -3203,53 +2450,34 @@ snapshots:
 
   quansync@0.2.11: {}
 
-  require-from-string@2.0.2: {}
-
-  resolve-from@4.0.0: {}
-
-  resolve@1.22.12:
-    dependencies:
-      es-errors: 1.3.0
-      is-core-module: 2.16.2
-      path-parse: 1.0.7
-      supports-preserve-symlinks-flag: 1.0.0
+  readdirp@5.0.0: {}
 
   rfdc@1.4.1: {}
 
-  rollup@4.60.4:
+  rolldown@1.0.3:
     dependencies:
-      '@types/estree': 1.0.8
+      '@oxc-project/types': 0.133.0
+      '@rolldown/pluginutils': 1.0.1
     optionalDependencies:
-      '@rollup/rollup-android-arm-eabi': 4.60.4
-      '@rollup/rollup-android-arm64': 4.60.4
-      '@rollup/rollup-darwin-arm64': 4.60.4
-      '@rollup/rollup-darwin-x64': 4.60.4
-      '@rollup/rollup-freebsd-arm64': 4.60.4
-      '@rollup/rollup-freebsd-x64': 4.60.4
-      '@rollup/rollup-linux-arm-gnueabihf': 4.60.4
-      '@rollup/rollup-linux-arm-musleabihf': 4.60.4
-      '@rollup/rollup-linux-arm64-gnu': 4.60.4
-      '@rollup/rollup-linux-arm64-musl': 4.60.4
-      '@rollup/rollup-linux-loong64-gnu': 4.60.4
-      '@rollup/rollup-linux-loong64-musl': 4.60.4
-      '@rollup/rollup-linux-ppc64-gnu': 4.60.4
-      '@rollup/rollup-linux-ppc64-musl': 4.60.4
-      '@rollup/rollup-linux-riscv64-gnu': 4.60.4
-      '@rollup/rollup-linux-riscv64-musl': 4.60.4
-      '@rollup/rollup-linux-s390x-gnu': 4.60.4
-      '@rollup/rollup-linux-x64-gnu': 4.60.4
-      '@rollup/rollup-linux-x64-musl': 4.60.4
-      '@rollup/rollup-openbsd-x64': 4.60.4
-      '@rollup/rollup-openharmony-arm64': 4.60.4
-      '@rollup/rollup-win32-arm64-msvc': 4.60.4
-      '@rollup/rollup-win32-ia32-msvc': 4.60.4
-      '@rollup/rollup-win32-x64-gnu': 4.60.4
-      '@rollup/rollup-win32-x64-msvc': 4.60.4
-      fsevents: 2.3.3
-
-  semver@7.7.4: {}
-
-  semver@7.8.0: {}
+      '@rolldown/binding-android-arm64': 1.0.3
+      '@rolldown/binding-darwin-arm64': 1.0.3
+      '@rolldown/binding-darwin-x64': 1.0.3
+      '@rolldown/binding-freebsd-x64': 1.0.3
+      '@rolldown/binding-linux-arm-gnueabihf': 1.0.3
+      '@rolldown/binding-linux-arm64-gnu': 1.0.3
+      '@rolldown/binding-linux-arm64-musl': 1.0.3
+      '@rolldown/binding-linux-ppc64-gnu': 1.0.3
+      '@rolldown/binding-linux-s390x-gnu': 1.0.3
+      '@rolldown/binding-linux-x64-gnu': 1.0.3
+      '@rolldown/binding-linux-x64-musl': 1.0.3
+      '@rolldown/binding-openharmony-arm64': 1.0.3
+      '@rolldown/binding-wasm32-wasi': 1.0.3
+      '@rolldown/binding-win32-arm64-msvc': 1.0.3
+      '@rolldown/binding-win32-x64-msvc': 1.0.3
+
+  scule@1.3.0: {}
+
+  semver@7.8.2: {}
 
   shebang-command@2.0.0:
     dependencies:
@@ -3261,23 +2489,11 @@ snapshots:
 
   source-map-js@1.2.1: {}
 
-  source-map@0.6.1: {}
-
   speakingurl@14.0.1: {}
 
-  sprintf-js@1.0.3: {}
-
   stackback@0.0.2: {}
 
-  std-env@3.10.0: {}
-
-  string-argv@0.3.2: {}
-
-  strip-json-comments@3.1.1: {}
-
-  strip-literal@3.1.0:
-    dependencies:
-      js-tokens: 9.0.1
+  std-env@4.1.0: {}
 
   strnum@2.3.0: {}
 
@@ -3285,192 +2501,185 @@ snapshots:
     dependencies:
       copy-anything: 4.0.5
 
-  supports-color@7.2.0:
-    dependencies:
-      has-flag: 4.0.0
-
-  supports-color@8.1.1:
-    dependencies:
-      has-flag: 4.0.0
-
-  supports-preserve-symlinks-flag@1.0.0: {}
-
   tinybench@2.9.0: {}
 
-  tinyexec@0.3.2: {}
+  tinyexec@1.2.4: {}
 
-  tinyglobby@0.2.16:
+  tinyglobby@0.2.17:
     dependencies:
       fdir: 6.5.0(picomatch@4.0.4)
       picomatch: 4.0.4
 
-  tinypool@1.1.1: {}
+  tinyrainbow@3.1.0: {}
 
-  tinyrainbow@2.0.0: {}
-
-  tinyspy@4.0.4: {}
-
-  ts-api-utils@2.5.0(typescript@5.9.3):
+  ts-api-utils@2.5.0(typescript@6.0.3):
     dependencies:
-      typescript: 5.9.3
+      typescript: 6.0.3
+
+  tslib@2.8.1:
+    optional: true
 
-  turbo@2.9.14:
+  turbo@2.9.16:
     optionalDependencies:
-      '@turbo/darwin-64': 2.9.14
-      '@turbo/darwin-arm64': 2.9.14
-      '@turbo/linux-64': 2.9.14
-      '@turbo/linux-arm64': 2.9.14
-      '@turbo/windows-64': 2.9.14
-      '@turbo/windows-arm64': 2.9.14
+      '@turbo/darwin-64': 2.9.16
+      '@turbo/darwin-arm64': 2.9.16
+      '@turbo/linux-64': 2.9.16
+      '@turbo/linux-arm64': 2.9.16
+      '@turbo/windows-64': 2.9.16
+      '@turbo/windows-arm64': 2.9.16
 
   type-check@0.4.0:
     dependencies:
       prelude-ls: 1.2.1
 
-  typescript-eslint@8.59.4(eslint@9.39.4)(typescript@5.9.3):
+  typescript-eslint@8.60.1(eslint@10.4.1)(typescript@6.0.3):
     dependencies:
-      '@typescript-eslint/eslint-plugin': 8.59.4(@typescript-eslint/parser@8.59.4(eslint@9.39.4)(typescript@5.9.3))(eslint@9.39.4)(typescript@5.9.3)
-      '@typescript-eslint/parser': 8.59.4(eslint@9.39.4)(typescript@5.9.3)
-      '@typescript-eslint/typescript-estree': 8.59.4(typescript@5.9.3)
-      '@typescript-eslint/utils': 8.59.4(eslint@9.39.4)(typescript@5.9.3)
-      eslint: 9.39.4
-      typescript: 5.9.3
+      '@typescript-eslint/eslint-plugin': 8.60.1(@typescript-eslint/parser@8.60.1(eslint@10.4.1)(typescript@6.0.3))(eslint@10.4.1)(typescript@6.0.3)
+      '@typescript-eslint/parser': 8.60.1(eslint@10.4.1)(typescript@6.0.3)
+      '@typescript-eslint/typescript-estree': 8.60.1(typescript@6.0.3)
+      '@typescript-eslint/utils': 8.60.1(eslint@10.4.1)(typescript@6.0.3)
+      eslint: 10.4.1
+      typescript: 6.0.3
     transitivePeerDependencies:
       - supports-color
 
-  typescript@5.9.3: {}
+  typescript@6.0.3: {}
 
   ufo@1.6.4: {}
 
-  universalify@2.0.1: {}
-
-  uri-js@4.4.1:
-    dependencies:
-      punycode: 2.3.1
-
-  vite-node@3.2.4:
-    dependencies:
-      cac: 6.7.14
-      debug: 4.4.3
-      es-module-lexer: 1.7.0
-      pathe: 2.0.3
-      vite: 7.3.3
-    transitivePeerDependencies:
-      - '@types/node'
-      - jiti
-      - less
-      - lightningcss
-      - sass
-      - sass-embedded
-      - stylus
-      - sugarss
-      - supports-color
-      - terser
-      - tsx
-      - yaml
-
-  vite-plugin-dts@4.5.4(rollup@4.60.4)(typescript@5.9.3)(vite@6.4.2):
+  unplugin-dts@1.0.2(rolldown@1.0.3)(typescript@6.0.3)(vite@8.0.16(yaml@2.9.0)):
     dependencies:
-      '@microsoft/api-extractor': 7.58.7
-      '@rollup/pluginutils': 5.3.0(rollup@4.60.4)
+      '@rollup/pluginutils': 5.4.0
       '@volar/typescript': 2.4.28
-      '@vue/language-core': 2.2.0(typescript@5.9.3)
       compare-versions: 6.1.1
       debug: 4.4.3
       kolorist: 1.8.0
-      local-pkg: 1.1.2
+      local-pkg: 1.2.1
       magic-string: 0.30.21
-      typescript: 5.9.3
+      typescript: 6.0.3
+      unplugin: 2.3.11
     optionalDependencies:
-      vite: 6.4.2
+      rolldown: 1.0.3
+      vite: 8.0.16(yaml@2.9.0)
     transitivePeerDependencies:
-      - '@types/node'
-      - rollup
       - supports-color
 
-  vite@6.4.2:
+  unplugin-utils@0.3.1:
     dependencies:
-      esbuild: 0.25.12
-      fdir: 6.5.0(picomatch@4.0.4)
+      pathe: 2.0.3
       picomatch: 4.0.4
-      postcss: 8.5.14
-      rollup: 4.60.4
-      tinyglobby: 0.2.16
-    optionalDependencies:
-      fsevents: 2.3.3
 
-  vite@7.3.3:
+  unplugin@2.3.11:
     dependencies:
-      esbuild: 0.27.7
-      fdir: 6.5.0(picomatch@4.0.4)
+      '@jridgewell/remapping': 2.3.5
+      acorn: 8.16.0
+      picomatch: 4.0.4
+      webpack-virtual-modules: 0.6.2
+
+  unplugin@3.0.0:
+    dependencies:
+      '@jridgewell/remapping': 2.3.5
       picomatch: 4.0.4
-      postcss: 8.5.14
-      rollup: 4.60.4
-      tinyglobby: 0.2.16
+      webpack-virtual-modules: 0.6.2
+
+  uri-js@4.4.1:
+    dependencies:
+      punycode: 2.3.1
+
+  vite-plugin-dts@5.0.2(rolldown@1.0.3)(typescript@6.0.3)(vite@8.0.16(yaml@2.9.0)):
+    dependencies:
+      unplugin-dts: 1.0.2(rolldown@1.0.3)(typescript@6.0.3)(vite@8.0.16(yaml@2.9.0))
     optionalDependencies:
-      fsevents: 2.3.3
+      vite: 8.0.16(yaml@2.9.0)
+    transitivePeerDependencies:
+      - '@rspack/core'
+      - '@vue/language-core'
+      - esbuild
+      - rolldown
+      - supports-color
+      - typescript
+      - webpack
 
-  vitest@3.2.4:
+  vite@8.0.16(yaml@2.9.0):
     dependencies:
-      '@types/chai': 5.2.3
-      '@vitest/expect': 3.2.4
-      '@vitest/mocker': 3.2.4(vite@7.3.3)
-      '@vitest/pretty-format': 3.2.4
-      '@vitest/runner': 3.2.4
-      '@vitest/snapshot': 3.2.4
-      '@vitest/spy': 3.2.4
-      '@vitest/utils': 3.2.4
-      chai: 5.3.3
-      debug: 4.4.3
+      lightningcss: 1.32.0
+      picomatch: 4.0.4
+      postcss: 8.5.15
+      rolldown: 1.0.3
+      tinyglobby: 0.2.17
+    optionalDependencies:
+      fsevents: 2.3.3
+      yaml: 2.9.0
+
+  vitest@4.1.8(vite@8.0.16(yaml@2.9.0)):
+    dependencies:
+      '@vitest/expect': 4.1.8
+      '@vitest/mocker': 4.1.8(vite@8.0.16(yaml@2.9.0))
+      '@vitest/pretty-format': 4.1.8
+      '@vitest/runner': 4.1.8
+      '@vitest/snapshot': 4.1.8
+      '@vitest/spy': 4.1.8
+      '@vitest/utils': 4.1.8
+      es-module-lexer: 2.1.0
       expect-type: 1.3.0
       magic-string: 0.30.21
+      obug: 2.1.2
       pathe: 2.0.3
       picomatch: 4.0.4
-      std-env: 3.10.0
+      std-env: 4.1.0
       tinybench: 2.9.0
-      tinyexec: 0.3.2
-      tinyglobby: 0.2.16
-      tinypool: 1.1.1
-      tinyrainbow: 2.0.0
-      vite: 7.3.3
-      vite-node: 3.2.4
+      tinyexec: 1.2.4
+      tinyglobby: 0.2.17
+      tinyrainbow: 3.1.0
+      vite: 8.0.16(yaml@2.9.0)
       why-is-node-running: 2.3.0
     transitivePeerDependencies:
-      - jiti
-      - less
-      - lightningcss
       - msw
-      - sass
-      - sass-embedded
-      - stylus
-      - sugarss
-      - supports-color
-      - terser
-      - tsx
-      - yaml
 
   vscode-uri@3.1.0: {}
 
-  vue-router@4.6.4(vue@3.5.34(typescript@5.9.3)):
+  vue-router@5.1.0(@vue/compiler-sfc@3.5.35)(pinia@3.0.4(typescript@6.0.3)(vue@3.5.35(typescript@6.0.3)))(vite@8.0.16(yaml@2.9.0))(vue@3.5.35(typescript@6.0.3)):
     dependencies:
-      '@vue/devtools-api': 6.6.4
-      vue: 3.5.34(typescript@5.9.3)
+      '@babel/generator': 8.0.0-rc.6
+      '@vue-macros/common': 3.1.2(vue@3.5.35(typescript@6.0.3))
+      '@vue/devtools-api': 8.1.2
+      ast-walker-scope: 0.9.0
+      chokidar: 5.0.0
+      json5: 2.2.3
+      local-pkg: 1.2.1
+      magic-string: 0.30.21
+      mlly: 1.8.2
+      muggle-string: 0.4.1
+      pathe: 2.0.3
+      picomatch: 4.0.4
+      scule: 1.3.0
+      tinyglobby: 0.2.17
+      unplugin: 3.0.0
+      unplugin-utils: 0.3.1
+      vue: 3.5.35(typescript@6.0.3)
+      yaml: 2.9.0
+    optionalDependencies:
+      '@vue/compiler-sfc': 3.5.35
+      pinia: 3.0.4(typescript@6.0.3)(vue@3.5.35(typescript@6.0.3))
+      vite: 8.0.16(yaml@2.9.0)
 
-  vue-tsc@2.2.12(typescript@5.9.3):
+  vue-tsc@3.3.3(typescript@6.0.3):
     dependencies:
-      '@volar/typescript': 2.4.15
-      '@vue/language-core': 2.2.12(typescript@5.9.3)
-      typescript: 5.9.3
+      '@volar/typescript': 2.4.28
+      '@vue/language-core': 3.3.3
+      typescript: 6.0.3
 
-  vue@3.5.34(typescript@5.9.3):
+  vue@3.5.35(typescript@6.0.3):
     dependencies:
-      '@vue/compiler-dom': 3.5.34
-      '@vue/compiler-sfc': 3.5.34
-      '@vue/runtime-dom': 3.5.34
-      '@vue/server-renderer': 3.5.34(vue@3.5.34(typescript@5.9.3))
-      '@vue/shared': 3.5.34
+      '@vue/compiler-dom': 3.5.35
+      '@vue/compiler-sfc': 3.5.35
+      '@vue/runtime-dom': 3.5.35
+      '@vue/server-renderer': 3.5.35(vue@3.5.35(typescript@6.0.3))
+      '@vue/shared': 3.5.35
     optionalDependencies:
-      typescript: 5.9.3
+      typescript: 6.0.3
+
+  webpack-virtual-modules@0.6.2: {}
 
   which@2.0.2:
     dependencies:
@@ -3485,4 +2694,6 @@ snapshots:
 
   xml-naming@0.1.0: {}
 
+  yaml@2.9.0: {}
+
   yocto-queue@0.1.0: {}

From e62b53a135ba5fea9418206c9de61531e38177d4 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sat, 5 Sep 2026 20:34:24 -0300
Subject: [PATCH 02/43] docs: define JFLAP 7.1 compatibility contract and
 implementation plan

---
 ACTION_PLAN.md        | 246 ++++++++++++++++++++++++++++++++++++++++++
 README.md             |   2 +
 docs/COMPATIBILITY.md |  48 +++++++++
 3 files changed, 296 insertions(+)
 create mode 100644 ACTION_PLAN.md
 create mode 100644 docs/COMPATIBILITY.md

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
new file mode 100644
index 0000000..f204e55
--- /dev/null
+++ b/ACTION_PLAN.md
@@ -0,0 +1,246 @@
+# Jauto audit and action plan
+
+**Date:** 2026-09-05  
+**Goal:** Build a modern alternative to JFLAP with reliable JFLAP 7.1 file compatibility.  
+**Status:** Implementation in progress. Each completed feature is validated and committed separately.
+
+## Assessment
+
+Jauto has a sound modular foundation, but it is not yet a reliable JFLAP-compatible alternative. The immediate priorities are file preservation, simulation correctness, and protection of users' work. Keep the existing separation between core models, JFF handling, simulators, file services, and shared UI while addressing these gaps.
+
+Compatibility must distinguish three guarantees:
+
+1. A document can be imported.
+2. Its contents and meaning are preserved when saved.
+3. Its execution matches JFLAP's behavior.
+
+Passing a Jauto parse/serialize round trip alone does not establish compatibility with JFLAP.
+
+## Audit baseline
+
+The following checks were completed against the existing installation:
+
+| Check | Result |
+| --- | --- |
+| Existing automated tests | 80 passed across core, JFF, and simulator packages |
+| Type checking | Passed |
+| Web production build | Passed |
+| Desktop frontend build | Passed |
+| Rust `cargo check --locked --offline` | Passed |
+| Lint | Passed, but Vue components are ignored by the current configuration |
+| Production dependency audit | Three high and one moderate advisory involving transitive PostCSS/nanoid dependencies; runtime exploitability was not established |
+| Browser verification | Confirmed that Backspace in the state-name input deletes the selected state |
+| Additional correctness probes | Executed against current source using in-memory transpilation, including official JFLAP fixtures |
+
+No source or configuration files were changed during the audit. Native installer execution, macOS behavior, and exhaustive compatibility across the full JFLAP corpus remain unverified. Existing build caches were present; these checks do not establish clean-checkout release reproducibility.
+
+## Prioritized findings
+
+**P1:** Blocker for a dependable compatible release.  
+**P2:** Important correctness, reliability, or usability improvement.  
+**P3:** Later expansion or optimization after the compatible automata milestone.
+
+| ID | Priority | Finding | Evidence and consequence |
+| --- | --- | --- | --- |
+| F01 | P1 | Exported state IDs are incompatible with JFLAP | `packages/core/src/ids.ts:4` generates IDs such as `s0`. `packages/jff/src/serializers/states.ts:13` writes them unchanged. JFLAP parses integer IDs, causing multiple invalid IDs to collide. |
+| F02 | P1 | Transition values are not XML-escaped | FA/PDA/TM serializers interpolate transition fields directly. Symbols containing `<` or `&` can produce malformed XML or change on reimport. |
+| F03 | P1 | Imports silently change or discard information | `packages/jff/src/parser.ts:19` trims meaningful whitespace. Multi-tape values become strings such as `[object Object]`; building blocks are ignored. `packages/file-io/src/open.ts:22` discards parser warnings. |
+| F04 | P1 | The editor runs every finite automaton as a DFA | `packages/ui/src/stores/simulation.ts:35` always selects the DFA runner for finite automata. An epsilon edge from an initial state to a final state incorrectly rejects empty input. |
+| F05 | P1 | PDA initialization disagrees with JFLAP | `packages/simulator/src/pda-runner.ts:23` starts with an empty stack instead of `Z`. The official PDA example imports without warnings but rejects valid inputs `ab`, `aabb`, and `aaabbb`. |
+| F06 | P1 | Valid execution paths are lost | FA/PDA runners do not support relevant multi-character transition strings. PDA execution truncates configurations at 1,000. `packages/simulator/src/tm-runner.ts:61` follows only the first matching transition. These can produce false rejection. |
+| F07 | P1 | Ordinary text editing can delete graph elements | `packages/ui/src/components/AutomatonCanvas.vue:103` forwards global keyboard events to graph interaction handling without protecting all editable targets. Confirmed in the browser. |
+| F08 | P1 | Unsaved documents lack lifecycle protection | New/Open can replace unsaved work without protection. Reload/close recovery is absent. Home retains the graph internally but provides no Resume action. |
+| F09 | P2 | Simulation replay and visualization are misleading | Previous/Next changes highlights without restoring the corresponding status/configuration. Rejection can highlight an edge that never executed. An accepted PDA result can display a losing branch. |
+| F10 | P2 | Editing during simulation creates inconsistent state | The runner retains the starting machine while the UI can display and use an edited document to infer highlights. |
+| F11 | P2 | Validation and identity invariants are incomplete | `packages/core/src/validation.ts:127` misses duplicate IDs and invalid TM properties. Imported IDs can collide with new IDs. Multiple initial states and dangling references are insufficiently guarded. |
+| F12 | P2 | Execution lifecycle and analysis helpers are unreliable | PDA initial acceptance can be lost on stepping. `run(0)` crashes. Resource limits can look like rejection. Some determinism checks are incorrect, and PDA/TM completeness checks unconditionally return true. |
+| F13 | P2 | Undo does not restore exact structure | Remove-state/remove-transition undo appends restored objects, changing order. With current first-match execution, this can change results. |
+| F14 | P2 | Inspector drafts can disappear or be omitted | Local drafts reset on selection/object changes. Save and Start operate on committed graph data without resolving pending inspector edits. |
+| F15 | P2 | Pointer and viewport behavior is incomplete | Mouse release outside the canvas can leave gestures active. No pointer capture is used. Resize handling misses container changes, high-DPI scaling is absent, and Fit/Zoom helpers are not exposed. |
+| F16 | P2 | Teaching and accessibility features are missing | The UI lacks stack/tape/head and branch views, remaining-input visualization, and batch input results. Canvas editing lacks a keyboard-accessible semantic alternative; controls and responsive layouts need work. |
+| F17 | P2 | File persistence and export behavior is incomplete | Desktop file paths and actual saved filenames are discarded. Dirty tracking is not revision-based. Web save ignores the boolean result. PNG export captures the current viewport rather than intentional whole-diagram bounds. |
+| F18 | P2 | Delivery checks leave important gaps | Vue files are not linted; UI/apps lack test coverage and file-io passes with no tests. The release workflow invokes desktop packaging without first building workspace libraries. Native event capabilities need verification. |
+| F19 | P2/P3 | Rendering and trace storage may scale poorly | Continuous idle rendering, repeated graph scans and geometry work, and growing trace arrays warrant measurement and targeted optimization. Performance impact has not yet been benchmarked. |
+| F20 | P3 | Current scope covers only part of JFLAP | The model supports FA/PDA/TM, while JFLAP also supports other machine/document families and teaching workflows. Full parity requires separate milestones. |
+
+## Implementation plan
+
+### 1. Define the compatibility contract and establish independent checks
+
+**Priority:** P1  
+**Dependencies:** None
+
+- [x] Target JFLAP 7.1 explicitly and publish a compatibility matrix for import, preservation, and execution.
+- [x] Define supported transition syntax, epsilon/blank conventions, acceptance policies, and unsupported-feature behavior.
+- [x] Start with FA/NFA, PDA, and single-tape TM as the first compatibility milestone.
+- [ ] Build a conformance suite from official JFLAP files and independently established expected outcomes.
+- [ ] Verify Jauto-created exports in JFLAP, including files with multiple new states.
+- [ ] Add regression cases for the confirmed defects, including empty input, string transitions, epsilon cycles, nondeterminism, malformed XML, and resource exhaustion.
+- [ ] Enable Vue linting and meaningful UI/store/file-service integration tests.
+- [ ] Add pull-request checks for tests, lint, type checking, and builds.
+
+**Acceptance criteria:** Every advertised feature has an independent compatibility check. Unsupported documents cannot silently become altered editable documents. Tests cover integration behavior as well as isolated engines.
+
+### 2. Repair the document model and JFF import/export
+
+**Priority:** P1  
+**Dependencies:** Compatibility rules and initial regression cases from step 1
+
+- [ ] Make automaton types a discriminated union with machine-specific transition schemas.
+- [ ] Allocate internal IDs without collisions and enforce graph uniqueness.
+- [ ] Map internal IDs to unique integer IDs on export, updating all transition endpoints consistently.
+- [ ] Use a shared XML writer or escaping utility for every text field and attribute; reject characters forbidden by XML.
+- [ ] Preserve semantic whitespace and trim only structural fields where appropriate.
+- [ ] Validate XML structure, document shape, references, initial-state rules, finite coordinates, tape counts, and movement values.
+- [ ] Preserve notes, state labels, and transition curve geometry.
+- [ ] Retain compatible document extensions or explicitly diagnose information that cannot be preserved.
+- [ ] Carry structured import diagnostics through file I/O to the UI.
+- [ ] Detect multi-tape and building-block documents. Reject unsupported editable imports or offer an explicit mode preserving the original contents.
+
+**Acceptance criteria:** Supported files survive exchange in both directions without altered symbols, topology, annotations, or execution meaning. Unsupported constructs and invalid graphs produce actionable diagnostics.
+
+### 3. Protect document editing and saving
+
+**Priority:** P1  
+**Dependencies:** Can proceed alongside steps 2 and 4
+
+- [ ] Centralize keyboard handling with editable-target, focus, modifier, and IME guards.
+- [ ] Add a shared document lifecycle for New/Open/Home/Close with Save/Discard/Cancel behavior.
+- [ ] Add recoverable drafts, reload/close protection, and a Resume path from Home.
+- [ ] Track document identity, current revision, and saved revision rather than a manually toggled dirty flag.
+- [ ] Bind asynchronous save completion to the document revision actually saved.
+- [ ] Preserve desktop paths and actual chosen filenames; distinguish Save from Save As.
+- [ ] Handle cancellation, false save results, and errors without clearing unsaved state.
+- [ ] Display actionable open/save/export errors instead of relying on console output.
+- [ ] Resolve inspector drafts consistently before saving, starting simulation, changing selection, or undoing.
+- [ ] Make undo restore exact graph structure and order; test undo back to the saved revision.
+
+**Acceptance criteria:** Typing never deletes graph elements. Canceled or failed operations retain work. Save indicators accurately describe the saved revision, and pending edits cannot disappear silently.
+
+### 4. Correct the execution engines
+
+**Priority:** P1  
+**Dependencies:** Compatibility semantics from step 1; coordinate model changes with step 2
+
+- [ ] Connect NFA execution and epsilon closure to the editor.
+- [ ] Support the declared FA/PDA string-transition semantics, including PDA stack-string matching.
+- [ ] Initialize PDA stacks consistently with JFLAP and correct initial-configuration acceptance.
+- [ ] Implement fair nondeterministic exploration and configuration deduplication where appropriate.
+- [ ] Support nondeterministic TMs or explicitly prevent unsupported execution until implemented.
+- [ ] Specify and implement the targeted TM acceptance policies and shortcut syntax.
+- [ ] Replace silent branch truncation with explicit resource-limit outcomes.
+- [ ] Standardize accepted, rejected, invalid, canceled, and incomplete outcomes across runners.
+- [ ] Validate execution budgets, including zero/negative values, and make terminal steps idempotent.
+- [ ] Repair determinism checks and remove placeholder completeness results.
+- [ ] Separate input, stack, and tape alphabet helpers.
+- [ ] Update existing tests that encode incompatible PDA initialization assumptions.
+
+**Acceptance criteria:** Official examples and edge cases produce expected results. Exhausted resources never count as proof of rejection. Unsupported execution modes are identified before running.
+
+### 5. Make simulation useful for learning
+
+**Priority:** P2  
+**Dependencies:** Correct engine behavior and result contracts from step 4
+
+- [ ] Emit actual transition IDs, complete configurations, branch identities, and accepting paths from runners.
+- [ ] Include the initial configuration in traces and replay complete snapshots directly.
+- [ ] Separate the replay cursor from the execution head.
+- [ ] Restart or invalidate simulations after semantic edits; define behavior for layout-only edits.
+- [ ] Show consumed/remaining input, PDA stack, TM tape/head, and active configurations.
+- [ ] Show branch selection and accepting witnesses for nondeterministic runs.
+- [ ] Expose meaningful execution limits and clear incomplete/canceled statuses.
+- [ ] Add batch input testing after individual simulation and replay are dependable.
+
+**Acceptance criteria:** Every displayed step, highlight, configuration, and status describes the same execution point. Users can inspect why a word was accepted or rejected.
+
+### 6. Improve editor interaction, accessibility, and performance
+
+**Priority:** P2; optimize based on measurements  
+**Dependencies:** Coordinate with document transactions and trace UI
+
+- [ ] Use Pointer Events and pointer capture for dragging and transition creation.
+- [ ] Handle pointer cancellation, lost capture, Escape, blur, and document switches.
+- [ ] Preserve drag offsets and use one history transaction per gesture.
+- [ ] Add visible Fit/Zoom controls and fit imported diagrams into view.
+- [ ] Observe container resizing and support high-density display rendering.
+- [ ] Provide keyboard-operable state/transition editing and a semantic alternative to the canvas.
+- [ ] Add associated labels, toolbar/menu semantics, visible focus, and accessible status announcements.
+- [ ] Make the inspector collapsible and controls usable in narrow windows and at enlarged text/zoom settings.
+- [ ] Export complete diagrams with intentional bounds, scale, background, and editing-decoration options.
+- [ ] Benchmark representative small and large diagrams and long simulations.
+- [ ] Address idle redraws, repeated graph scans, geometry recalculation, and trace retention based on results.
+- [ ] Introduce background execution and viewport culling where justified by measurements.
+
+**Acceptance criteria:** Diagrams remain discoverable and editable across supported input methods, window sizes, and agreed performance benchmarks. Exports include the intended complete diagram.
+
+### 7. Make desktop builds and delivery dependable
+
+**Priority:** P2 overall; clean-build and native-command failures are release blockers  
+**Dependencies:** CI foundation from step 1; stable document commands from step 3
+
+- [ ] Centralize shared application commands to reduce web/desktop behavior drift.
+- [ ] Configure necessary native event capabilities and ensure listeners are cleaned up.
+- [ ] Verify native menus, accelerators, document close protection, and file dialogs.
+- [ ] Build workspace dependencies from clean checkouts before desktop packaging.
+- [ ] Gate releases on conformance tests, lint, type checking, frontend builds, and native checks.
+- [ ] Smoke-test installed Windows and macOS applications.
+- [ ] Update affected PostCSS/nanoid dependency paths and assess advisory reachability.
+- [ ] Review production CSP and keep native permissions scoped to required functionality.
+- [ ] Align version numbers, toolchain requirements, release notes, and setup documentation.
+- [ ] Review stale dependency/configuration remnants after checking actual usage.
+- [ ] Complete signing/notarization before a stable distribution.
+
+**Acceptance criteria:** Clean CI produces installers that pass platform smoke tests. Native commands work as documented, and dependency advisories are fixed or explicitly assessed.
+
+### 8. Expand toward full JFLAP parity
+
+**Priority:** P3  
+**Dependencies:** Dependable compatible automata milestone
+
+- [ ] Add multi-tape TMs and building-block machines with import, preservation, and execution support together.
+- [ ] Add regular-expression documents and tooling.
+- [ ] Add NFA-to-DFA conversion, DFA minimization, and automaton/regular-expression conversions.
+- [ ] Add grammars and parsing workflows.
+- [ ] Add Mealy and Moore machines.
+- [ ] Add L-systems and pumping-lemma activities.
+- [ ] Extend the compatibility matrix and independent fixture suite for every new feature before advertising support.
+
+**Acceptance criteria:** Each feature is a separately verified product milestone. Full JFLAP replacement claims reflect demonstrated coverage rather than file-extension support alone.
+
+## Execution order and release criteria
+
+1. Establish the compatibility contract and regression foundation.
+2. Prioritize steps 2-4: file preservation, document protection, and simulation correctness. Document protection can proceed independently alongside the other two.
+3. Build trustworthy traces and educational views on the corrected engines.
+4. Complete editor usability and platform reliability work, measuring performance before optimizing.
+5. Expand to additional JFLAP features after the first compatibility milestone.
+
+Before calling the automata milestone dependable:
+
+- [ ] All P1 findings have regression coverage and are resolved.
+- [ ] Supported JFLAP files preserve their meaning through import, edit, export, and reopening in JFLAP.
+- [ ] Official examples and declared edge cases execute correctly.
+- [ ] Unsupported constructs cannot be silently corrupted or simulated with misleading results.
+- [ ] Save, cancellation, recovery, and undo workflows protect user work.
+- [ ] Vue/UI/file-service checks run in CI, and releases build from clean checkouts.
+- [ ] Installed applications pass the declared platform smoke tests.
+
+## Primary references
+
+- [Official JFLAP download page](https://www.jflap.org/jflaptmp/)
+- [JFLAP 7.1 source archive](https://www.jflap.org/jflaptmp/july27-18/JFLAP7.1_With_Source.jar): integer IDs, document families, and XML persistence behavior.
+- [JFLAP PDA tutorial](https://jflap.org/tutorial/pda/construct/index.html): initial stack and transition-string semantics.
+- [Official PDA example](https://www.jflap.org/tutorial/pda/construct/pdaexample.jff): corpus-backed simulation reproduction.
+- [JFLAP book](https://www.jflap.org/jflapbook/jflapbook2006.pdf): finite-automaton string transitions and educational workflows.
+- [Single-tape TM tutorial](https://www.jflap.org/tutorial/turing/one/index.html): nondeterminism and shortcut syntax.
+- [JFLAP preferences](https://www.jflap.org/tutorial/guiChanges/index.html): TM acceptance policies.
+- [Official multi-tape example](https://www.jflap.org/tutorial/turing/multi/turingAnBnCnMulti.jff): per-tape XML structure.
+- [JFLAP 7.1 TM format changes](https://www.jflap.org/tutorial/turing/changes7.1/index.html)
+- [Finite-automaton tutorial](https://www.jflap.org/tutorial/fa/createfa/fa.html): annotations and editor behavior.
+- [Tauri capabilities](https://v2.tauri.app/security/capabilities/): native API permissions.
+
+## Implementation log
+
+- Compatibility contract: added `docs/COMPATIBILITY.md` with an honest baseline matrix, first-release semantics, unsupported-feature policy and verification requirements. Validated against the audit's official JFLAP references and current implementation. No application behavior changed.
+
+Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/README.md b/README.md
index 4bc55a5..97ce449 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,8 @@
 
 ## Features (MVP)
 
+Compatibility is under active development. See the [JFLAP 7.1 compatibility contract](docs/COMPATIBILITY.md) for current limitations and the [action plan](ACTION_PLAN.md) for progress.
+
 - **DFA / NFA** — create, edit, and simulate finite automata
 - **PDA** — pushdown automata with stack visualization
 - **Turing Machine** — single-tape Turing machine editor and simulator
diff --git a/docs/COMPATIBILITY.md b/docs/COMPATIBILITY.md
new file mode 100644
index 0000000..760f96f
--- /dev/null
+++ b/docs/COMPATIBILITY.md
@@ -0,0 +1,48 @@
+# JFLAP 7.1 compatibility contract
+
+Jauto targets JFLAP **7.1**. Support has three independent dimensions: importing a document, preserving it on export, and executing it with the same semantics. A successful import does not imply either of the other guarantees.
+
+## Current coverage
+
+This table records the audited baseline. Update a row only after its independent conformance checks pass. See [the action plan](../ACTION_PLAN.md) for implementation progress.
+
+| Document or feature | Import | Preservation | Execution |
+| --- | --- | --- | --- |
+| Finite automata | Basic fixtures pass | Known ID, XML escaping and whitespace defects | DFA subset; NFA engine is not connected to the editor |
+| Pushdown automata | Basic fixtures pass | Known XML escaping and whitespace defects | Initial stack, string operations and branching require repair |
+| Single-tape Turing machines | Basic fixtures pass | Known XML escaping defects | Deterministic literal-symbol subset |
+| Notes and transition control points | Not represented | Lost on export | Layout only |
+| Multi-tape and building-block TMs | Unsafe partial parsing; must be rejected until supported | Not preserved | Unsupported |
+| Regular expressions, grammars, Mealy/Moore, L-systems, pumping exercises | Unsupported | Unsupported | Unsupported |
+
+## First release contract
+
+The first dependable milestone covers finite automata (including nondeterminism and epsilon), pushdown automata, and single-tape Turing machines. Broader document families are separate milestones.
+
+- FA transitions consume literal strings, including the empty string (epsilon). Prefix-overlapping transitions are nondeterministic and must explore all applicable paths.
+- PDA read, pop and push fields are literal strings. The initial stack is `Z`. The leftmost symbol of a pop/push string is the top of that string. Acceptance requires consumed input and a final state; an empty stack alone is insufficient.
+- An empty TM read/write field represents a blank cell. Moves are `L`, `R` or `S`. The initial execution profile accepts upon entering a final state; halt-only acceptance and shortcut expressions must be explicitly supported or rejected before execution. They must never be silently interpreted as ordinary literal cells.
+- Names, labels, transition strings and whitespace retain their meaning. Internal IDs may change on export, but exported state IDs must be unique JFLAP-compatible integers and every reference must follow the same mapping.
+- Missing initial/final states may be retained in editable drafts. Simulation requires exactly one initial state and valid references; a missing final state is a warning for final-state acceptance.
+- Unsupported document structures must produce a visible error or an explicit preservation-only mode. Import must not silently drop tapes, nested machines or metadata.
+- Unknown extensions must either be preserved or diagnosed. No unqualified lossless claim is allowed when data is discarded.
+- Rejection means all applicable execution paths are exhausted. Resource limits, cancellation, invalid machines and unsupported features are distinct outcomes, never rejection.
+- Semantic edits invalidate the running simulation. Replay displays stored configurations and actual traversed transitions rather than guesses from the current graph.
+
+## Evidence required for support claims
+
+1. Vendor-authored fixtures with source URLs and independently specified expected results.
+2. Regression cases for epsilon, empty input, multi-character labels, Unicode, XML entities, whitespace, invalid graphs and bounded exploration.
+3. Export checks independent of Jauto's own parser, followed by reopening representative exports in JFLAP 7.1.
+4. UI and file-service integration checks that exercise the same paths used by users.
+5. Clean-checkout web and desktop builds, plus installed-application smoke checks for advertised platforms.
+
+Fixtures and their provenance are version-controlled so normal tests do not depend on live downloads. Native/JFLAP checks that require external runtimes must be reported separately when unavailable; they must not silently pass.
+
+## References
+
+- [JFLAP 7.1 source archive](https://www.jflap.org/jflaptmp/july27-18/JFLAP7.1_With_Source.jar)
+- [PDA construction and stack semantics](https://jflap.org/tutorial/pda/construct/index.html)
+- [Finite automata and string transitions, section 1.5](https://www.jflap.org/jflapbook/jflapbook2006.pdf)
+- [Single-tape Turing machines](https://www.jflap.org/tutorial/turing/one/index.html)
+- [Acceptance preferences](https://www.jflap.org/tutorial/guiChanges/index.html)

From 88a1c28e67dd5efa74d6bc83e6fe6eb221f614e5 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sat, 5 Sep 2026 20:43:01 -0300
Subject: [PATCH 03/43] test: add Vue and file-service checks with CI release
 gates

---
 .github/workflows/checks.yml                  |  26 +
 .github/workflows/desktop-release.yml         |   9 +
 ACTION_PLAN.md                                |   5 +-
 eslint.config.mjs                             |   8 +
 package.json                                  |   7 +-
 .../file-io/__tests__/file-service.test.ts    |  31 +
 packages/file-io/package.json                 |   2 +-
 .../jff/__tests__/fixtures/official/README.md |  11 +
 .../fixtures/official/pdaexample.jff          |  60 ++
 packages/jff/__tests__/official.test.ts       |  16 +
 packages/ui/__tests__/history.test.ts         |  24 +
 packages/ui/__tests__/home.test.ts            |  15 +
 packages/ui/package.json                      |   3 +-
 packages/ui/vitest.config.ts                  |   7 +
 pnpm-lock.yaml                                | 554 +++++++++++++++++-
 turbo.json                                    |   5 +
 vitest.config.ts                              |   7 +
 vitest.workspace.ts                           |   7 -
 18 files changed, 779 insertions(+), 18 deletions(-)
 create mode 100644 .github/workflows/checks.yml
 create mode 100644 packages/file-io/__tests__/file-service.test.ts
 create mode 100644 packages/jff/__tests__/fixtures/official/README.md
 create mode 100644 packages/jff/__tests__/fixtures/official/pdaexample.jff
 create mode 100644 packages/jff/__tests__/official.test.ts
 create mode 100644 packages/ui/__tests__/history.test.ts
 create mode 100644 packages/ui/__tests__/home.test.ts
 create mode 100644 packages/ui/vitest.config.ts
 create mode 100644 vitest.config.ts
 delete mode 100644 vitest.workspace.ts

diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
new file mode 100644
index 0000000..f46166f
--- /dev/null
+++ b/.github/workflows/checks.yml
@@ -0,0 +1,26 @@
+name: Project checks
+
+on:
+  pull_request:
+  push:
+    branches: [main, master, develop]
+
+permissions:
+  contents: read
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: pnpm/action-setup@v6
+      - uses: actions/setup-node@v6
+        with:
+          node-version: 22
+          cache: pnpm
+      - run: pnpm install --frozen-lockfile
+      - run: pnpm lint
+      - run: pnpm test
+      - run: pnpm typecheck
+      - run: pnpm --filter @jauto/web build
+      - run: pnpm --filter @jauto/desktop build:frontend
diff --git a/.github/workflows/desktop-release.yml b/.github/workflows/desktop-release.yml
index 2af7a52..0852b79 100644
--- a/.github/workflows/desktop-release.yml
+++ b/.github/workflows/desktop-release.yml
@@ -55,6 +55,15 @@ jobs:
         run: pnpm install --frozen-lockfile
 
       - name: Build native desktop app
+        # The renderer imports workspace packages through their dist exports.
+        # pnpm test builds these dependencies through Turbo before packaging.
+        working-directory: .
+        run: |
+          pnpm lint
+          pnpm test
+          pnpm typecheck
+
+      - name: Package native desktop app
         working-directory: apps/desktop
         run: pnpm tauri build ${{ matrix.args }}
 
diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index f204e55..cffedd7 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -76,8 +76,8 @@ No source or configuration files were changed during the audit. Native installer
 - [ ] Build a conformance suite from official JFLAP files and independently established expected outcomes.
 - [ ] Verify Jauto-created exports in JFLAP, including files with multiple new states.
 - [ ] Add regression cases for the confirmed defects, including empty input, string transitions, epsilon cycles, nondeterminism, malformed XML, and resource exhaustion.
-- [ ] Enable Vue linting and meaningful UI/store/file-service integration tests.
-- [ ] Add pull-request checks for tests, lint, type checking, and builds.
+- [x] Enable Vue linting and meaningful UI/store/file-service integration tests.
+- [x] Add pull-request checks for tests, lint, type checking, and builds.
 
 **Acceptance criteria:** Every advertised feature has an independent compatibility check. Unsupported documents cannot silently become altered editable documents. Tests cover integration behavior as well as isolated engines.
 
@@ -242,5 +242,6 @@ Before calling the automata milestone dependable:
 ## Implementation log
 
 - Compatibility contract: added `docs/COMPATIBILITY.md` with an honest baseline matrix, first-release semantics, unsupported-feature policy and verification requirements. Validated against the audit's official JFLAP references and current implementation. No application behavior changed.
+- Test and CI foundation: enabled Vue linting, added UI/history and file-service tests, retained the official PDA fixture with provenance, replaced obsolete Vitest workspace configuration, and added PR/release checks. Validation: 86 tests passed; lint, type checking and both frontend builds passed; Turbo task graph verified. Full simulator conformance and installed-platform checks remain outstanding.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/eslint.config.mjs b/eslint.config.mjs
index 307801c..69108c0 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -1,9 +1,17 @@
 import js from '@eslint/js';
 import tseslint from 'typescript-eslint';
+import vue from 'eslint-plugin-vue';
 
 export default tseslint.config(
   js.configs.recommended,
   ...tseslint.configs.recommended,
+  ...vue.configs['flat/essential'],
+  {
+    files: ['**/*.vue'],
+    languageOptions: { parserOptions: { parser: tseslint.parser } },
+    // vue-tsc checks identifiers (including DOM types) in TypeScript SFC scripts.
+    rules: { 'vue/multi-word-component-names': 'off', 'no-undef': 'off' },
+  },
   {
     ignores: ['**/dist/**', '**/node_modules/**', '**/.turbo/**'],
   },
diff --git a/package.json b/package.json
index a12042f..16a9e52 100644
--- a/package.json
+++ b/package.json
@@ -16,12 +16,17 @@
   },
   "devDependencies": {
     "@eslint/js": "^10.0.1",
+    "@vitejs/plugin-vue": "^6.0.7",
+    "@vue/test-utils": "^2.5.0",
     "eslint": "^10.4.1",
+    "eslint-plugin-vue": "^10.10.0",
+    "jsdom": "^30.0.1",
     "prettier": "^3.8.3",
     "turbo": "^2.9.16",
     "typescript": "^6.0.3",
     "typescript-eslint": "^8.60.1",
-    "vitest": "^4.1.8"
+    "vitest": "^4.1.8",
+    "vue-eslint-parser": "^10.4.1"
   },
   "packageManager": "pnpm@11.5.2",
   "engines": {
diff --git a/packages/file-io/__tests__/file-service.test.ts b/packages/file-io/__tests__/file-service.test.ts
new file mode 100644
index 0000000..9773b6c
--- /dev/null
+++ b/packages/file-io/__tests__/file-service.test.ts
@@ -0,0 +1,31 @@
+import { describe, expect, it, vi } from 'vitest';
+import { createEmptyAutomaton } from '@jauto/core';
+import { openAutomaton, FileOpenError } from '../src/open';
+import { saveAutomaton } from '../src/save';
+import type { FileService } from '../src/file-service';
+
+function service(): FileService {
+  return { openFile: vi.fn().mockResolvedValue(null), saveFile: vi.fn().mockResolvedValue(true), exportImage: vi.fn().mockResolvedValue(true) };
+}
+
+describe('file service boundary', () => {
+  it('keeps canceled opens distinct from parse failures', async () => {
+    const files = service();
+    await expect(openAutomaton(files)).resolves.toBeNull();
+    vi.mocked(files.openFile).mockResolvedValue({ name: 'broken.jff', content: '<broken>' });
+    await expect(openAutomaton(files)).rejects.toBeInstanceOf(FileOpenError);
+  });
+
+  it('passes serialized content to the platform and retains cancellation', async () => {
+    const files = service();
+    vi.mocked(files.saveFile).mockResolvedValue(false);
+    await expect(saveAutomaton(files, createEmptyAutomaton('fa'), 'example.jff')).resolves.toBe(false);
+    expect(files.saveFile).toHaveBeenCalledWith('example.jff', expect.stringContaining('<type>fa</type>'));
+  });
+
+  it('does not hide disk errors', async () => {
+    const files = service();
+    vi.mocked(files.saveFile).mockRejectedValue(new Error('Disk full'));
+    await expect(saveAutomaton(files, createEmptyAutomaton('fa'), 'example.jff')).rejects.toThrow('Disk full');
+  });
+});
diff --git a/packages/file-io/package.json b/packages/file-io/package.json
index e45a222..49de794 100644
--- a/packages/file-io/package.json
+++ b/packages/file-io/package.json
@@ -17,7 +17,7 @@
   "scripts": {
     "build": "vite build",
     "dev": "vite build --watch",
-    "test": "vitest run --passWithNoTests",
+    "test": "vitest run",
     "typecheck": "tsc --noEmit",
     "lint": "eslint src/"
   },
diff --git a/packages/jff/__tests__/fixtures/official/README.md b/packages/jff/__tests__/fixtures/official/README.md
new file mode 100644
index 0000000..19c0020
--- /dev/null
+++ b/packages/jff/__tests__/fixtures/official/README.md
@@ -0,0 +1,11 @@
+# Official JFLAP fixtures
+
+Files in this directory are retained unchanged from their public tutorial sources. Normal tests use these local copies and do not download fixtures.
+
+| File | Source | Retrieved | Expected behavior |
+| --- | --- | --- | --- |
+| `pdaexample.jff` | https://www.jflap.org/tutorial/pda/construct/pdaexample.jff | 2026-09-05 | Accepts `a^n b^n` for `n >= 1`; starts with stack `Z` |
+
+The example's XML identifies JFLAP 6.1; it is published in the official tutorial and uses the PDA structure accepted by JFLAP 7.1. Its language follows from the transitions: the first `a` replaces `Z` with `aZ`, more `a`s push `a`, each `b` pops one `a`, and the final epsilon transition is enabled when `Z` is exposed.
+
+Conformance expectations: accept `ab`, `aabb`, `aaabbb`; reject empty input, `a`, `b`, `aab`, `abb`, and `abab`. Parser tests establish the foreign-file structure; simulator regression tests must establish the language independently of serialization.
diff --git a/packages/jff/__tests__/fixtures/official/pdaexample.jff b/packages/jff/__tests__/fixtures/official/pdaexample.jff
new file mode 100644
index 0000000..91df6e1
--- /dev/null
+++ b/packages/jff/__tests__/fixtures/official/pdaexample.jff
@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><!--Created with JFLAP 6.1.--><structure>
+	<type>pda</type>
+	<automaton>
+		<!--The list of states.-->
+		<state id="0" name="q0">
+			<x>94.0</x>
+			<y>148.0</y>
+			<initial/>
+		</state>
+		<state id="1" name="q1">
+			<x>217.0</x>
+			<y>147.0</y>
+		</state>
+		<state id="2" name="q2">
+			<x>335.0</x>
+			<y>147.0</y>
+		</state>
+		<state id="3" name="q3">
+			<x>460.0</x>
+			<y>149.0</y>
+			<final/>
+		</state>
+		<!--The list of transitions.-->
+		<transition>
+			<from>0</from>
+			<to>1</to>
+			<read>a</read>
+			<pop>Z</pop>
+			<push>aZ</push>
+		</transition>
+		<transition>
+			<from>2</from>
+			<to>2</to>
+			<read>b</read>
+			<pop>a</pop>
+			<push/>
+		</transition>
+		<transition>
+			<from>2</from>
+			<to>3</to>
+			<read/>
+			<pop>Z</pop>
+			<push>Z</push>
+		</transition>
+		<transition>
+			<from>1</from>
+			<to>1</to>
+			<read>a</read>
+			<pop>a</pop>
+			<push>aa</push>
+		</transition>
+		<transition>
+			<from>1</from>
+			<to>2</to>
+			<read>b</read>
+			<pop>a</pop>
+			<push/>
+		</transition>
+	</automaton>
+</structure>
\ No newline at end of file
diff --git a/packages/jff/__tests__/official.test.ts b/packages/jff/__tests__/official.test.ts
new file mode 100644
index 0000000..e717cc3
--- /dev/null
+++ b/packages/jff/__tests__/official.test.ts
@@ -0,0 +1,16 @@
+import { readFileSync } from 'node:fs';
+import { describe, expect, it } from 'vitest';
+import { parseJFF } from '../src/parser';
+
+describe('official JFLAP tutorial documents', () => {
+  it('reads the PDA stack initialization and string operations unchanged', () => {
+    const xml = readFileSync(new URL('./fixtures/official/pdaexample.jff', import.meta.url), 'utf8');
+    const { automaton, warnings } = parseJFF(xml);
+    expect(automaton.kind).toBe('pda');
+    expect(warnings).toEqual([]);
+    expect(automaton.states).toHaveLength(4);
+    expect(automaton.transitions).toHaveLength(5);
+    expect(automaton.transitions).toContainEqual(expect.objectContaining({ from: '0', to: '1', read: 'a', pop: 'Z', push: 'aZ' }));
+    expect(automaton.transitions).toContainEqual(expect.objectContaining({ from: '2', to: '3', read: '', pop: 'Z', push: 'Z' }));
+  });
+});
diff --git a/packages/ui/__tests__/history.test.ts b/packages/ui/__tests__/history.test.ts
new file mode 100644
index 0000000..3300902
--- /dev/null
+++ b/packages/ui/__tests__/history.test.ts
@@ -0,0 +1,24 @@
+import { beforeEach, describe, expect, it } from 'vitest';
+import { createPinia, setActivePinia } from 'pinia';
+import { AddStateCommand } from '@jauto/core';
+import { useDocumentStore } from '../src/stores/document';
+import { useHistoryStore } from '../src/stores/history';
+
+describe('document and command history integration', () => {
+  beforeEach(() => setActivePinia(createPinia()));
+
+  it('adds, undoes and redoes a state in the visible document', () => {
+    const doc = useDocumentStore();
+    const history = useHistoryStore();
+    doc.newDocument('fa');
+    history.dispatch(new AddStateCommand({ id: 'example', name: 'q0', x: 10, y: 20, isInitial: true, isFinal: false }));
+    expect(doc.automaton.states).toHaveLength(1);
+    expect(doc.isDirty).toBe(true);
+    expect(history.canUndo).toBe(true);
+    history.undo();
+    expect(doc.automaton.states).toHaveLength(0);
+    expect(history.canRedo).toBe(true);
+    history.redo();
+    expect(doc.automaton.states[0]?.name).toBe('q0');
+  });
+});
diff --git a/packages/ui/__tests__/home.test.ts b/packages/ui/__tests__/home.test.ts
new file mode 100644
index 0000000..a1377e2
--- /dev/null
+++ b/packages/ui/__tests__/home.test.ts
@@ -0,0 +1,15 @@
+import { describe, expect, it } from 'vitest';
+import { mount } from '@vue/test-utils';
+import HomePage from '../src/components/HomePage.vue';
+
+describe('home document entry points', () => {
+  it('dispatches the selected machine kind and open action', async () => {
+    const wrapper = mount(HomePage, { global: { stubs: { ThemeToggle: true } } });
+    const cards = wrapper.findAll('.home__card');
+    for (const card of cards) await card.trigger('click');
+    expect(wrapper.emitted('new')).toEqual([['fa'], ['pda'], ['turing']]);
+    await wrapper.get('.home__open-btn').trigger('click');
+    expect(wrapper.emitted('open')).toHaveLength(1);
+    wrapper.unmount();
+  });
+});
diff --git a/packages/ui/package.json b/packages/ui/package.json
index d6c7244..537ea94 100644
--- a/packages/ui/package.json
+++ b/packages/ui/package.json
@@ -13,7 +13,8 @@
     "build": "vue-tsc --noEmit",
     "dev": "echo 'ui: no dev server (consumed by apps)'",
     "typecheck": "vue-tsc --noEmit",
-    "lint": "eslint src/"
+    "lint": "eslint src/",
+    "test": "vitest run"
   },
   "dependencies": {
     "@jauto/core": "workspace:*",
diff --git a/packages/ui/vitest.config.ts b/packages/ui/vitest.config.ts
new file mode 100644
index 0000000..6488f13
--- /dev/null
+++ b/packages/ui/vitest.config.ts
@@ -0,0 +1,7 @@
+import { defineConfig } from 'vitest/config';
+import vue from '@vitejs/plugin-vue';
+
+export default defineConfig({
+  plugins: [vue()],
+  test: { environment: 'jsdom', include: ['__tests__/**/*.test.ts'] },
+});
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 5e5968b..28dc85a 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -17,9 +17,21 @@ importers:
       '@eslint/js':
         specifier: ^10.0.1
         version: 10.0.1(eslint@10.4.1)
+      '@vitejs/plugin-vue':
+        specifier: ^6.0.7
+        version: 6.0.7(vite@8.0.16(yaml@2.9.0))(vue@3.5.35(typescript@6.0.3))
+      '@vue/test-utils':
+        specifier: ^2.5.0
+        version: 2.5.0(@vue/compiler-dom@3.5.35)(@vue/server-renderer@3.5.35(vue@3.5.35(typescript@6.0.3)))(vue@3.5.35(typescript@6.0.3))
       eslint:
         specifier: ^10.4.1
         version: 10.4.1
+      eslint-plugin-vue:
+        specifier: ^10.10.0
+        version: 10.10.0(@typescript-eslint/parser@8.60.1(eslint@10.4.1)(typescript@6.0.3))(eslint@10.4.1)(vue-eslint-parser@10.4.1(eslint@10.4.1))
+      jsdom:
+        specifier: ^30.0.1
+        version: 30.0.1
       prettier:
         specifier: ^3.8.3
         version: 3.8.3
@@ -34,7 +46,10 @@ importers:
         version: 8.60.1(eslint@10.4.1)(typescript@6.0.3)
       vitest:
         specifier: ^4.1.8
-        version: 4.1.8(vite@8.0.16(yaml@2.9.0))
+        version: 4.1.8(jsdom@30.0.1)(vite@8.0.16(yaml@2.9.0))
+      vue-eslint-parser:
+        specifier: ^10.4.1
+        version: 10.4.1(eslint@10.4.1)
 
   apps/desktop:
     dependencies:
@@ -123,7 +138,7 @@ importers:
         version: 5.0.2(rolldown@1.0.3)(typescript@6.0.3)(vite@8.0.16(yaml@2.9.0))
       vitest:
         specifier: ^4.1.8
-        version: 4.1.8(vite@8.0.16(yaml@2.9.0))
+        version: 4.1.8(jsdom@30.0.1)(vite@8.0.16(yaml@2.9.0))
 
   packages/file-io:
     dependencies:
@@ -145,7 +160,7 @@ importers:
         version: 5.0.2(rolldown@1.0.3)(typescript@6.0.3)(vite@8.0.16(yaml@2.9.0))
       vitest:
         specifier: ^4.1.8
-        version: 4.1.8(vite@8.0.16(yaml@2.9.0))
+        version: 4.1.8(jsdom@30.0.1)(vite@8.0.16(yaml@2.9.0))
 
   packages/jff:
     dependencies:
@@ -167,7 +182,7 @@ importers:
         version: 5.0.2(rolldown@1.0.3)(typescript@6.0.3)(vite@8.0.16(yaml@2.9.0))
       vitest:
         specifier: ^4.1.8
-        version: 4.1.8(vite@8.0.16(yaml@2.9.0))
+        version: 4.1.8(jsdom@30.0.1)(vite@8.0.16(yaml@2.9.0))
 
   packages/simulator:
     dependencies:
@@ -186,7 +201,7 @@ importers:
         version: 5.0.2(rolldown@1.0.3)(typescript@6.0.3)(vite@8.0.16(yaml@2.9.0))
       vitest:
         specifier: ^4.1.8
-        version: 4.1.8(vite@8.0.16(yaml@2.9.0))
+        version: 4.1.8(jsdom@30.0.1)(vite@8.0.16(yaml@2.9.0))
 
   packages/ui:
     dependencies:
@@ -215,6 +230,14 @@ importers:
 
 packages:
 
+  '@asamuzakjp/css-color@6.0.7':
+    resolution: {integrity: sha512-vC/bk1Lz7Tn/EfU9/apOTBk80/8dyGyWMowPoV1tJ52muDGsDqt2HPT2klrFUiY60MQmQv9q8yIht15JnBgDGw==}
+    engines: {node: ^22.13.0 || >=24.0.0}
+
+  '@asamuzakjp/dom-selector@8.3.2':
+    resolution: {integrity: sha512-93Z1N+BQNXysodoicpOIyNh2drHfz/CTf9nnT0FEx72GJcIiwgydD7tGAr78j41LsYn3hlRn+LdGPuBLn1Bl8Q==}
+    engines: {node: ^22.13.0 || >=24.0.0}
+
   '@babel/generator@8.0.0-rc.6':
     resolution: {integrity: sha512-6mIzgVK8DgEzvIapoQwhXTMnnkuE4STQmVv9H03i/tZ2ml8oev3TRvZJgTenK2Bsq0YWNtzOrFdTyNzCMFtjJQ==}
     engines: {node: ^22.18.0 || >=24.11.0}
@@ -253,6 +276,46 @@ packages:
     resolution: {integrity: sha512-p7/ABylAYlexb31wtRdIfH9L9A0Z2T/9H6zAqzqndkY2PLkvNNc580wGhp/gGKN4Sp9sQvSkhc6Oga8/O+wTyw==}
     engines: {node: ^22.18.0 || >=24.11.0}
 
+  '@bramus/specificity@2.4.2':
+    resolution: {integrity: sha512-ctxtJ/eA+t+6q2++vj5j7FYX3nRu311q1wfYH3xjlLOsczhlhxAg2FWNUXhpGvAw3BWo1xBcvOV6/YLc2r5FJw==}
+    hasBin: true
+
+  '@csstools/color-helpers@6.1.1':
+    resolution: {integrity: sha512-gLNsunvwf3mCi5u5o46/Z/JcJMnhbHSaZ69rkgPzNM3J4s8hWwpPUQB6/tt0EDFyCiWzxANlx+2LJwpYj4zS1w==}
+    engines: {node: '>=20.19.0'}
+
+  '@csstools/css-calc@3.3.0':
+    resolution: {integrity: sha512-c5ihYsPkdG6JCkU2zTMm4+k6r7RXuGxtWYhu5DHMIiF1FHzrfmHL5so11AoFpUv/tu61xfcmT4AmKoFfMPoqdQ==}
+    engines: {node: '>=20.19.0'}
+    peerDependencies:
+      '@csstools/css-parser-algorithms': ^4.0.0
+      '@csstools/css-tokenizer': ^4.0.0
+
+  '@csstools/css-color-parser@4.2.2':
+    resolution: {integrity: sha512-3QKjR/vxyjcSXBLgb6lP0S3MGdvwbmqSsvLPbYdVORqPDc8FX1HAJ0Spk38bxaRXgvENTA47tlhhbb5Z2e8hEg==}
+    engines: {node: '>=20.19.0'}
+    peerDependencies:
+      '@csstools/css-parser-algorithms': ^4.0.0
+      '@csstools/css-tokenizer': ^4.0.0
+
+  '@csstools/css-parser-algorithms@4.0.0':
+    resolution: {integrity: sha512-+B87qS7fIG3L5h3qwJ/IFbjoVoOe/bpOdh9hAjXbvx0o8ImEmUsGXN0inFOnk2ChCFgqkkGFQ+TpM5rbhkKe4w==}
+    engines: {node: '>=20.19.0'}
+    peerDependencies:
+      '@csstools/css-tokenizer': ^4.0.0
+
+  '@csstools/css-syntax-patches-for-csstree@1.1.12':
+    resolution: {integrity: sha512-3vLQK+dXxhBMR2Wx99PTCifE+vHtW2ndZWyla8yK813ev6oGhyn8Lja8jCyGAWTJ+LEYZK7EVtJxrDj8ztevJw==}
+    peerDependencies:
+      css-tree: ^3.2.1
+    peerDependenciesMeta:
+      css-tree:
+        optional: true
+
+  '@csstools/css-tokenizer@4.0.0':
+    resolution: {integrity: sha512-QxULHAm7cNu72w97JUNCBFODFaXpbDg+dP8b/oWFAZ2MTRppA3U00Y2L1HqaS4J6yBqxwa/Y3nMBaxVKbB/NsA==}
+    engines: {node: '>=20.19.0'}
+
   '@emnapi/core@1.10.0':
     resolution: {integrity: sha512-yq6OkJ4p82CAfPl0u9mQebQHKPJkY7WrIuk205cTYnYe+k2Z8YBh11FrbRG/H6ihirqcacOgl2BIO8oyMQLeXw==}
 
@@ -301,6 +364,15 @@ packages:
     resolution: {integrity: sha512-+CNAzxglkrpNf/kKywqQfk74QjtceuOE7Qm+AF8miRvPF/wmmK5+OJOgVh3AVTT3RP2mH3+FOaxlE5v72owk0A==}
     engines: {node: ^20.19.0 || ^22.13.0 || >=24}
 
+  '@exodus/bytes@1.15.1':
+    resolution: {integrity: sha512-S6mL0yNB/Abt9Ei4tq8gDhcczc4S3+vQ4ra7vxnAf+YHC02srtqxKKZghx2Dq6p0e66THKwR6r8N6P95wEty7Q==}
+    engines: {node: ^20.19.0 || ^22.12.0 || >=24.0.0}
+    peerDependencies:
+      '@noble/hashes': ^1.8.0 || ^2.0.0
+    peerDependenciesMeta:
+      '@noble/hashes':
+        optional: true
+
   '@humanfs/core@0.19.2':
     resolution: {integrity: sha512-UhXNm+CFMWcbChXywFwkmhqjs3PRCmcSa/hfBgLIb7oQ5HNb1wS0icWsGtSAUNgefHeI+eBrA8I1fxmbHsGdvA==}
     engines: {node: '>=18.18.0'}
@@ -351,6 +423,9 @@ packages:
   '@nodable/entities@2.1.1':
     resolution: {integrity: sha512-Pig3HxDIoMgjdEH8OCf/dkcTmLFjJRjWuq8jSnklu284/TKOPibSRERmOykiwmyXTtv61mP+44f3GMx0tLAyjg==}
 
+  '@one-ini/wasm@0.2.1':
+    resolution: {integrity: sha512-TUqERXGNTifZ9y2g3wPxQrw3HpHv/02DsW3D90T9x0hhonrL1ZqpSmNrU2XkoIq0fP1N6gZfVQzy2Fw1ZvGBNg==}
+
   '@oxc-project/types@0.133.0':
     resolution: {integrity: sha512-KzkdCd6Uxqnf6l3HOw1xfatAlUURA0g14cvBYFyJ5SaNOQbOUvBr9PKArcPcrNIeRsBdgcUzOGrhKveVpvOIGA==}
 
@@ -757,6 +832,20 @@ packages:
   '@vue/shared@3.5.35':
     resolution: {integrity: sha512-zSbjL7gRXwks2ZQLRGCajBtBXEOXW9Ddhn/HvSdrGkE2dqGnumzW8XtusRrxrE9LvqtiqDXQ+A60Hp6mvdYxfA==}
 
+  '@vue/test-utils@2.5.0':
+    resolution: {integrity: sha512-6Clu5EKR/r6cDPYrKsu+8wenciWJJ3rhS9OEGsfDlZeZIhlJeEPGIZQHxE4lHRJCzPSq3EWMsFxQUqCvrbHQuQ==}
+    peerDependencies:
+      '@vue/compiler-dom': 3.x
+      '@vue/server-renderer': 3.x
+      vue: 3.x
+    peerDependenciesMeta:
+      '@vue/server-renderer':
+        optional: true
+
+  abbrev@5.0.0:
+    resolution: {integrity: sha512-/XrFJgzQQQHpti1raDJC6m4ws6aNktmjBlhk8Fdlk7LwCEuDoieEJJY9OFHjfiFJFFRM2tK+Ky/IsfbbmlMu1w==}
+    engines: {node: ^22.22.2 || ^24.15.0 || >=26.0.0}
+
   acorn-jsx@5.3.2:
     resolution: {integrity: sha512-rq9s+JNhf0IChjtDXxllJ7g41oZk5SlXtp0LHwyA5cejwn7vKmKp4pPri6YEePv2PU65sAsegbXtIinmDFDXgQ==}
     peerDependencies:
@@ -789,9 +878,15 @@ packages:
     resolution: {integrity: sha512-BLrgEcRTwX2o6gGxGOCNyMvGSp35YofuYzw9h1IMTRmKqttAZZVU67bdb9Pr2vUHA8+j3i2tJfjO6C6+4myGTA==}
     engines: {node: 18 || 20 || >=22}
 
+  bidi-js@1.0.3:
+    resolution: {integrity: sha512-RKshQI1R3YQ+n9YJz2QQ147P66ELpa1FQEg20Dk8oW9t2KgLbpDLLp9aGZ7y8WHSshDknG0bknqGw5/tyCs5tw==}
+
   birpc@2.9.0:
     resolution: {integrity: sha512-KrayHS5pBi69Xi9JmvoqrIgYGDkD6mcSe/i6YKi3w5kekCLzrX4+nawcXqrj2tIp50Kw/mT/s3p+GVK0A0sKxw==}
 
+  boolbase@1.0.0:
+    resolution: {integrity: sha512-JZOSA7Mo9sNGB8+UjSgzdLtokWAky1zbztM3WRLCbZ70/3cTANmQmOdR7y2g+J0e2WXywy1yS468tY+IruqEww==}
+
   brace-expansion@5.0.6:
     resolution: {integrity: sha512-kLpxurY4Z4r9sgMsyG0Z9uzsBlgiU/EFKhj/h91/8yHu0edo7XuixOIH3VcJ8kkxs6/jPzoI6U9Vj3WqbMQ94g==}
     engines: {node: 18 || 20 || >=22}
@@ -804,6 +899,10 @@ packages:
     resolution: {integrity: sha512-TQMmc3w+5AxjpL8iIiwebF73dRDF4fBIieAqGn9RGCWaEVwQ6Fb2cGe31Yns0RRIzii5goJ1Y7xbMwo1TxMplw==}
     engines: {node: '>= 20.19.0'}
 
+  commander@14.0.3:
+    resolution: {integrity: sha512-H+y0Jo/T1RZ9qPP4Eh1pkcQcLRglraJaSLoyOtHxu6AapkjWVCy2Sit1QQ4x3Dng8qDlSsZEet7g5Pq06MvTgw==}
+    engines: {node: '>=20'}
+
   compare-versions@6.1.1:
     resolution: {integrity: sha512-4hm4VPpIecmlg59CHXnRDnqGplJFrbLG4aFEl5vl6cK1u76ws3LLvX7ikFnTDl5vo39sjWD6AaDPYodJp/NNHg==}
 
@@ -813,6 +912,9 @@ packages:
   confbox@0.2.4:
     resolution: {integrity: sha512-ysOGlgTFbN2/Y6Cg3Iye8YKulHw+R2fNXHrgSmXISQdMnomY6eNDprVdW9R5xBguEqI954+S6709UyiO7B+6OQ==}
 
+  config-chain@1.1.13:
+    resolution: {integrity: sha512-qj+f8APARXHrM0hraqXYb2/bOVSV4PvJQlNZ/DVj0QrmNM2q2euizkeuVckQ57J+W0mRH6Hvi+k50M4Jul2VRQ==}
+
   convert-source-map@2.0.0:
     resolution: {integrity: sha512-Kvp459HrV2FEJ1CAsi1Ku+MY3kasH19TFykTz2xWmMeq6bk2NU3XXvfJ+Q61m0xktWwt+1HSYf3JZsTms3aRJg==}
 
@@ -824,9 +926,22 @@ packages:
     resolution: {integrity: sha512-uV2QOWP2nWzsy2aMp8aRibhi9dlzF5Hgh5SHaB9OiTGEyDTiJJyx0uy51QXdyWbtAHNua4XJzUKca3OzKUd3vA==}
     engines: {node: '>= 8'}
 
+  css-tree@3.2.1:
+    resolution: {integrity: sha512-X7sjQzceUhu1u7Y/ylrRZFU2FS6LRiFVp6rKLPg23y3x3c3DOKAwuXGDp+PAGjh6CSnCjYeAul8pcT8bAl+lSA==}
+    engines: {node: ^10 || ^12.20.0 || ^14.13.0 || >=15.0.0}
+
+  cssesc@3.0.0:
+    resolution: {integrity: sha512-/Tb/JcjK111nNScGob5MNtsntNM1aCNUDipB/TkwZFhyDrrE47SOx/18wF2bbjgc3ZzCSKW1T5nt5EbFoAz/Vg==}
+    engines: {node: '>=4'}
+    hasBin: true
+
   csstype@3.2.3:
     resolution: {integrity: sha512-z1HGKcYy2xA8AGQfwrn0PAy+PB7X/GSj3UVJW9qKyn43xWa+gl5nXmU4qqLMRzWVLFC8KusUX8T/0kCiOYpAIQ==}
 
+  data-urls@7.0.0:
+    resolution: {integrity: sha512-23XHcCF+coGYevirZceTVD7NdJOqVn+49IHyxgszm+JIiHLoB2TkmPtsYkNWT1pvRSGkc35L6NHs0yHkN2SumA==}
+    engines: {node: ^20.19.0 || ^22.12.0 || >=24.0.0}
+
   debug@4.4.3:
     resolution: {integrity: sha512-RGwwWnwQvkVfavKVt22FGLw+xYSdzARwm0ru6DhTVA3umU5hZc28V3kO4stgYryrTlLpuvgI9GiijltAjNbcqA==}
     engines: {node: '>=6.0'}
@@ -836,6 +951,9 @@ packages:
       supports-color:
         optional: true
 
+  decimal.js@10.6.0:
+    resolution: {integrity: sha512-YpgQiITW3JXGntzdUmyUR1V812Hn8T1YVXhCu+wO3OpS4eU9l4YdD3qjyiKdV6mvV29zapkMeD390UVEf2lkUg==}
+
   deep-is@0.1.4:
     resolution: {integrity: sha512-oIPzksmTg4/MriiaYGO+okXDT7ztn/w3Eptv/+gSIdMdKsJo0u4CfYNFJPy+4SKMuCqGw2wxnA+URMg3t8a/bQ==}
 
@@ -843,10 +961,19 @@ packages:
     resolution: {integrity: sha512-Btj2BOOO83o3WyH59e8MgXsxEQVcarkUOpEYrubB0urwnN10yQ364rsiByU11nZlqWYZm05i/of7io4mzihBtQ==}
     engines: {node: '>=8'}
 
+  editorconfig@3.0.2:
+    resolution: {integrity: sha512-T0ix8GhtxyKVfUFEcvdNDt3YGqlwkFHbD4/5bgFUDgFmxhI/cSRAeJ87/Sz//Cq8Eam6JX/e23RkoFO71P7aAA==}
+    engines: {node: '>=20'}
+    hasBin: true
+
   entities@7.0.1:
     resolution: {integrity: sha512-TWrgLOFUQTH994YUyl1yT4uyavY5nNB5muff+RtWaqNVCAK408b5ZnnbNAUEWLTCpum9w6arT70i1XdQ4UeOPA==}
     engines: {node: '>=0.12'}
 
+  entities@8.0.0:
+    resolution: {integrity: sha512-zwfzJecQ/Uej6tusMqwAqU/6KL2XaB2VZ2Jg54Je6ahNBGNH6Ek6g3jjNCF0fG9EWQKGZNddNjU5F1ZQn/sBnA==}
+    engines: {node: '>=20.19.0'}
+
   es-module-lexer@2.1.0:
     resolution: {integrity: sha512-n27zTYMjYu1aj4MjCWzSP7G9r75utsaoc8m61weK+W8JMBGGQybd43GstCXZ3WNmSFtGT9wi59qQTW6mhTR5LQ==}
 
@@ -854,6 +981,20 @@ packages:
     resolution: {integrity: sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA==}
     engines: {node: '>=10'}
 
+  eslint-plugin-vue@10.10.0:
+    resolution: {integrity: sha512-dL9x9rBHqqNcByWiLOHK6L0SB97V82/NC0cZRn9cXPjM7pCuWlpQQP9bFH4vjBv80ej1ZpzAkuD8zWH1o9bZbA==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+    peerDependencies:
+      '@stylistic/eslint-plugin': ^2.0.0 || ^3.0.0 || ^4.0.0 || ^5.0.0
+      '@typescript-eslint/parser': ^7.0.0 || ^8.0.0
+      eslint: ^8.57.0 || ^9.0.0 || ^10.0.0
+      vue-eslint-parser: ^10.3.0
+    peerDependenciesMeta:
+      '@stylistic/eslint-plugin':
+        optional: true
+      '@typescript-eslint/parser':
+        optional: true
+
   eslint-scope@9.1.2:
     resolution: {integrity: sha512-xS90H51cKw0jltxmvmHy2Iai1LIqrfbw57b79w/J7MfvDfkIkFZ+kj6zC3BjtUwh150HsSSdxXZcsuv72miDFQ==}
     engines: {node: ^20.19.0 || ^22.13.0 || >=24}
@@ -958,9 +1099,17 @@ packages:
     resolution: {integrity: sha512-XxwI8EOhVQgWp6iDL+3b0r86f4d6AX6zSU55HfB4ydCEuXLXc5FcYeOu+nnGftS4TEju/11rt4KJPTMgbfmv4A==}
     engines: {node: '>=10.13.0'}
 
+  glob@13.0.6:
+    resolution: {integrity: sha512-Wjlyrolmm8uDpm/ogGyXZXb1Z+Ca2B8NbJwqBVg0axK9GbBeoS7yGV6vjXnYdGm6X53iehEuxxbyiKp8QmN4Vw==}
+    engines: {node: 18 || 20 || >=22}
+
   hookable@5.5.3:
     resolution: {integrity: sha512-Yc+BQe8SvoXH1643Qez1zqLRmbA5rCL+sSmk6TVos0LWVfNIB7PGncdlId77WzLGSIB5KaWgTaNTs2lNVEI6VQ==}
 
+  html-encoding-sniffer@6.0.0:
+    resolution: {integrity: sha512-CV9TW3Y3f8/wT0BRFc1/KAVQ3TUHiXmaAb6VW9vtiMFf7SLoMd1PdAc4W3KFOFETBJUb90KatHqlsZMWV+R9Gg==}
+    engines: {node: ^20.19.0 || ^22.12.0 || >=24.0.0}
+
   ignore@5.3.2:
     resolution: {integrity: sha512-hsBTNUqQTDwkWtcdYI2i06Y/nUBEsNEDJKjWdigLvegy8kDuJAS8uRlpkkcQpyEXL0Z/pjDy5HBmMjRCJ2gq+g==}
     engines: {node: '>= 4'}
@@ -973,6 +1122,9 @@ packages:
     resolution: {integrity: sha512-JmXMZ6wuvDmLiHEml9ykzqO6lwFbof0GG4IkcGaENdCRDDmMVnny7s5HsIgHCbaq0w2MyPhDqkhTUgS2LU2PHA==}
     engines: {node: '>=0.8.19'}
 
+  ini@1.3.8:
+    resolution: {integrity: sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew==}
+
   is-extglob@2.1.1:
     resolution: {integrity: sha512-SbKbANkN603Vi4jEZv49LeVJMn4yGwsbzZworEoyEiutsN3nJYdbO36zfhGJ6QEDpOZIFkDtnq5JRxmvl3jsoQ==}
     engines: {node: '>=0.10.0'}
@@ -981,6 +1133,9 @@ packages:
     resolution: {integrity: sha512-xelSayHH36ZgE7ZWhli7pW34hNbNl8Ojv5KVmkJD4hBdD3th8Tfk9vYasLM+mXWOZhFkgZfxhLSnrwRr4elSSg==}
     engines: {node: '>=0.10.0'}
 
+  is-potential-custom-element-name@1.0.1:
+    resolution: {integrity: sha512-bCYeRA2rVibKZd+s2625gGnGF/t7DSqDs4dP7CrLA1m7jKWz6pps0LpYLJN8Q64HtmPKJ1hrN3nzPNKFEKOUiQ==}
+
   is-what@5.5.0:
     resolution: {integrity: sha512-oG7cgbmg5kLYae2N5IVd3jm2s+vldjxJzK1pcu9LfpGuQ93MQSzo0okvRna+7y5ifrD+20FE8FvjusyGaz14fw==}
     engines: {node: '>=18'}
@@ -988,6 +1143,23 @@ packages:
   isexe@2.0.0:
     resolution: {integrity: sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw==}
 
+  js-beautify@2.0.3:
+    resolution: {integrity: sha512-cyFbh3tkPhknnTD/0bLf0T0yy2ZIbqL05mttzbt4y1Zfr7NxqXQZ62dkBLKs3oHH/lpjmDRAnciJiSUyOy8XwQ==}
+    engines: {node: '>=14'}
+    hasBin: true
+
+  js-cookie@3.0.8:
+    resolution: {integrity: sha512-yeJd4aNAdYZQjaon2bpD/Gb0B/omw7HQOsynXXcOiWVCacbBcPlgn8S/d1X6blFSaHao7ozqtW7NZW19xpCtIw==}
+
+  jsdom@30.0.1:
+    resolution: {integrity: sha512-52v7mUVUfNQVYYqE1lcdaymWL0njO7lTLUog6ZvW2U5KsbiLk/GnZlVJ+qx0xfNJZ6Gn+KSpPNE52vurbxZwrA==}
+    engines: {node: ^22.22.2 || ^24.15.0 || >=26.0.0}
+    peerDependencies:
+      canvas: ^3.2.3
+    peerDependenciesMeta:
+      canvas:
+        optional: true
+
   jsesc@3.1.0:
     resolution: {integrity: sha512-/sM3dO2FOzXjKQhJuo0Q173wf2KOo8t4I8vHy6lF9poUp7bKT0/NHE8fPX23PwfhnykfqnC2xRxOnVw5XuGIaA==}
     engines: {node: '>=6'}
@@ -1099,6 +1271,10 @@ packages:
     resolution: {integrity: sha512-iPZK6eYjbxRu3uB4/WZ3EsEIMJFMqAoopl3R+zuq0UjcAm/MO6KCweDgPfP3elTztoKP3KtnVHxTn2NHBSDVUw==}
     engines: {node: '>=10'}
 
+  lru-cache@11.5.2:
+    resolution: {integrity: sha512-4pfM1Ff0x50o0tQwb5ucw/RzNyD0/YJME6IVcStalZuMWxdt3sR3huStTtxz4PUmvZfRguvDejasvQ2kifR11g==}
+    engines: {node: 20 || >=22}
+
   magic-string-ast@1.0.3:
     resolution: {integrity: sha512-CvkkH1i81zl7mmb94DsRiFeG9V2fR2JeuK8yDgS8oiZSFa++wWLEgZ5ufEOyLHbvSbD1gTRKv9NdX69Rnvr9JA==}
     engines: {node: '>=20.19.0'}
@@ -1106,10 +1282,17 @@ packages:
   magic-string@0.30.21:
     resolution: {integrity: sha512-vd2F4YUyEXKGcLHoq+TEyCjxueSeHnFxyyjNp80yg0XV4vUhnDer/lvvlqM/arB5bXQN5K2/3oinyCRyx8T2CQ==}
 
+  mdn-data@2.27.1:
+    resolution: {integrity: sha512-9Yubnt3e8A0OKwxYSXyhLymGW4sCufcLG6VdiDdUGVkPhpqLxlvP5vl1983gQjJl3tqbrM731mjaZaP68AgosQ==}
+
   minimatch@10.2.5:
     resolution: {integrity: sha512-MULkVLfKGYDFYejP07QOurDLLQpcjk7Fw+7jXS2R2czRQzR56yHRveU5NDJEOviH+hETZKSkIk5c+T23GjFUMg==}
     engines: {node: 18 || 20 || >=22}
 
+  minipass@7.1.3:
+    resolution: {integrity: sha512-tEBHqDnIoM/1rXME1zgka9g6Q2lcoCkxHLuc7ODJ5BxbP5d4c2Z5cGgtXAku59200Cx7diuHTOYfSBD8n6mm8A==}
+    engines: {node: '>=16 || 14 >=14.17'}
+
   mitt@3.0.1:
     resolution: {integrity: sha512-vKivATfr97l2/QBCYAkXYDbrIWPM2IIKEl7YPhjCvKlG3kE2gm+uBo6nEXK3M5/Ffh/FLpKExzOQ3JJoJGFKBw==}
 
@@ -1130,6 +1313,14 @@ packages:
   natural-compare@1.4.0:
     resolution: {integrity: sha512-OWND8ei3VtNC9h7V60qff3SVobHr996CTwgxubgyQYEpg290h9J0buyECNNJexkFm5sOajh5G116RYA1c8ZMSw==}
 
+  nopt@10.0.1:
+    resolution: {integrity: sha512-df3sBr/6ax9hSGuC3CspvLlbnX8cP5L5nZwXF8cGN8l0zSWR6BvzmQ6jPUKjvo6+/xdpkNvEcucBNUdBeeV13g==}
+    engines: {node: ^22.22.2 || ^24.15.0 || >=26.0.0}
+    hasBin: true
+
+  nth-check@2.1.1:
+    resolution: {integrity: sha512-lqjrjmaOoAnWfMmBPL+XNnynZh2+swxiX3WUE0s4yEHI6m+AwrK2UZOimIRl3X/4QctVqS8AiZjFqyOGrMXb/w==}
+
   obug@2.1.2:
     resolution: {integrity: sha512-AWGB9WFcRXOQs48Z/udjI5ZcZMHXwX8XPByNpOydgcGsDLIzjGizhoMWJyKAWze7AVW/2W1i+/gPX4YtKe5cyg==}
     engines: {node: '>=12.20.0'}
@@ -1146,6 +1337,9 @@ packages:
     resolution: {integrity: sha512-LaNjtRWUBY++zB5nE/NwcaoMylSPk+S+ZHNB1TzdbMJMny6dynpAGt7X/tl/QYq3TIeE6nxHppbo2LGymrG5Pw==}
     engines: {node: '>=10'}
 
+  parse5@8.0.1:
+    resolution: {integrity: sha512-z1e/HMG90obSGeidlli3hj7cbocou0/wa5HacvI3ASx34PecNjNQeaHNo5WIZpWofN9kgkqV1q5YvXe3F0FoPw==}
+
   path-browserify@1.0.1:
     resolution: {integrity: sha512-b7uo2UCUOYZcnF/3ID0lulOJi/bafxa1xPe7ZPsammBSpjSWQkjNxlt635YGS2MiR9GjvuXCtz2emr3jbsz98g==}
 
@@ -1161,6 +1355,10 @@ packages:
     resolution: {integrity: sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q==}
     engines: {node: '>=8'}
 
+  path-scurry@2.0.2:
+    resolution: {integrity: sha512-3O/iVVsJAPsOnpwWIeD+d6z/7PmqApyQePUtCndjatj/9I5LylHvt5qluFaBT3I5h3r1ejfR056c+FCv+NnNXg==}
+    engines: {node: 18 || 20 || >=22}
+
   pathe@2.0.3:
     resolution: {integrity: sha512-WUjGcAqP1gQacoQe+OBJsFA7Ld4DyXuUIjZ5cc75cLHvJ7dtNsTugphxIADwspS+AraAUePCKrSVtPLFj/F88w==}
 
@@ -1192,6 +1390,10 @@ packages:
   pkg-types@2.3.1:
     resolution: {integrity: sha512-y+ichcgc2LrADuhLNAx8DFjVfgz91pRxfZdI3UDhxHvcVEZsenLO+7XaU5vOp0u/7V/wZ+plyuQxtrDlZJ+yeg==}
 
+  postcss-selector-parser@7.1.6:
+    resolution: {integrity: sha512-7qASPzhKF2l2KLboRZux8CCTRMdGiV08vWmyKzPz22qZ7ZjQBOeY7rNzNoCLSUiftJ7HUq0GERHmxw/t0dCdMw==}
+    engines: {node: '>=4'}
+
   postcss@8.5.15:
     resolution: {integrity: sha512-FfR8sjd4em2T6fb3I2MwAJU7HWVMr9zba+enmQeeWFfCbm+UOC/0X4DS8XtpUTMwWMGbjKYP7xjfNekzyGmB3A==}
     engines: {node: ^10 || ^12 || >=14}
@@ -1205,6 +1407,9 @@ packages:
     engines: {node: '>=14'}
     hasBin: true
 
+  proto-list@1.2.4:
+    resolution: {integrity: sha512-vtK/94akxsTMhe0/cbfpR+syPuszcuwhqVjJq26CuNDgFGj682oRBXOP5MJpv2r7JtE8MsiepGIqvvOTBwn2vA==}
+
   punycode@2.3.1:
     resolution: {integrity: sha512-vYt7UD1U9Wg6138shLtLOvdAu+8DsC/ilFtEVHcH+wydcSpNE20AfSOduf6MkRFahL5FY7X1oU7nKVZFtfq8Fg==}
     engines: {node: '>=6'}
@@ -1216,6 +1421,10 @@ packages:
     resolution: {integrity: sha512-9u/XQ1pvrQtYyMpZe7DXKv2p5CNvyVwzUB6uhLAnQwHMSgKMBR62lc7AHljaeteeHXn11XTAaLLUVZYVZyuRBQ==}
     engines: {node: '>= 20.19.0'}
 
+  require-from-string@2.0.2:
+    resolution: {integrity: sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==}
+    engines: {node: '>=0.10.0'}
+
   rfdc@1.4.1:
     resolution: {integrity: sha512-q1b3N5QkRUWUl7iyylaaj3kOpIT0N2i9MqIEQXP73GVsN9cw3fdx8X63cEmWhJGi2PPCF23Ijp7ktmd39rawIA==}
 
@@ -1224,6 +1433,10 @@ packages:
     engines: {node: ^20.19.0 || >=22.12.0}
     hasBin: true
 
+  saxes@6.0.0:
+    resolution: {integrity: sha512-xAg7SOnEhrm5zI3puOOKyy1OMcMlIJZYNJY7xLBwSze0UjhPLnWfj2GF2EpT0jmzaJKIWKHLsaSSajf35bcYnA==}
+    engines: {node: '>=v12.22.7'}
+
   scule@1.3.0:
     resolution: {integrity: sha512-6FtHJEvt+pVMIB9IBY+IcCJ6Z5f1iQnytgyfKMhDKgmzYG+TeH/wx1y3l27rshSbLiSanrR9ffZDrEsmjlQF2g==}
 
@@ -1232,6 +1445,11 @@ packages:
     engines: {node: '>=10'}
     hasBin: true
 
+  semver@7.8.5:
+    resolution: {integrity: sha512-Y7/KDsb8LjooZpwaqGyulO6DQlksgCncchHGk+sZIY4SBvUocMBEFH5Ur1fI4dV+Jvl0w6cjvucaIi40puRioA==}
+    engines: {node: '>=10'}
+    hasBin: true
+
   shebang-command@2.0.0:
     resolution: {integrity: sha512-kHxr2zZpYtdmrN1qDjrrX/Z1rR1kG8Dx+gkpK1G4eXmvXswmcE1hTWBWYUzlraYw1/yZp6YuDY77YtvbN0dmDA==}
     engines: {node: '>=8'}
@@ -1264,6 +1482,9 @@ packages:
     resolution: {integrity: sha512-H+ue8Zo4vJmV2nRjpx86P35lzwDT3nItnIsocgumgr0hHMQ+ZGq5vrERg9kJBo5AWGmxZDhzDo+WVIJqkB0cGA==}
     engines: {node: '>=16'}
 
+  symbol-tree@3.2.4:
+    resolution: {integrity: sha512-9QNk5KwDF+Bvz+PyObkmSYjI5ksVUYtjW7AU22r2NKcfLJcXp96hkDWU3+XndOsUb+AQ9QhfzfCT2O+CNWT5Tw==}
+
   tinybench@2.9.0:
     resolution: {integrity: sha512-0+DUvqWMValLmha6lr4kD8iAMK1HzV0/aKnCtWb9v9641TnP/MFb7Pc2bxoxQjTXAErryXVgUOfv2YqNllqGeg==}
 
@@ -1279,6 +1500,21 @@ packages:
     resolution: {integrity: sha512-Bf+ILmBgretUrdJxzXM0SgXLZ3XfiaUuOj/IKQHuTXip+05Xn+uyEYdVg0kYDipTBcLrCVyUzAPz7QmArb0mmw==}
     engines: {node: '>=14.0.0'}
 
+  tldts-core@7.4.11:
+    resolution: {integrity: sha512-CW3WN2rIIE/Of21mulhgnGOwoDyEFNygyIBOONSdyAuSATgMMUCpLeUlB+E8sAwA5xRV9hYPl+kyZ9citHCaKg==}
+
+  tldts@7.4.11:
+    resolution: {integrity: sha512-aBiNayCfTQxuIJBm06M+xR14cYaYlDlSXZbgsnKzKNxDKUVq7KFwTjwBSsb7m9Y5xO8WfPnBc63WaYFMTGlvqw==}
+    hasBin: true
+
+  tough-cookie@6.0.2:
+    resolution: {integrity: sha512-exgYmnmL/sJpR3upZfXG5PoatXQii55xAiXGXzY+sROLZ/Y+SLcp9PgJNI9Vz37HpQ74WvDcLT8eqm+kV3FzrA==}
+    engines: {node: '>=16'}
+
+  tr46@6.0.0:
+    resolution: {integrity: sha512-bLVMLPtstlZ4iMQHpFHTR7GAGj2jxi8Dg0s2h2MafAE4uSWF98FC/3MomU51iQAMf8/qDUbKWf5GxuvvVcXEhw==}
+    engines: {node: '>=20'}
+
   ts-api-utils@2.5.0:
     resolution: {integrity: sha512-OJ/ibxhPlqrMM0UiNHJ/0CKQkoKF243/AEmplt3qpRgkW8VG7IfOS41h7V8TjITqdByHzrjcS/2si+y4lIh8NA==}
     engines: {node: '>=18.12'}
@@ -1311,6 +1547,10 @@ packages:
   ufo@1.6.4:
     resolution: {integrity: sha512-JFNbkD1Svwe0KvGi8GOeLcP4kAWQ609twvCdcHxq1oSL8svv39ZuSvajcD8B+5D0eL4+s1Is2D/O6KN3qcTeRA==}
 
+  undici@8.10.2:
+    resolution: {integrity: sha512-/y4/bH9YNU5hi9NIrpOuvGXFcxrj3CMrV+/AYpowAYTpHn8gX/XPFjNy766FPoYY0miQhdW977JFWKGNhBdwyQ==}
+    engines: {node: '>=22.19.0'}
+
   unplugin-dts@1.0.2:
     resolution: {integrity: sha512-VbNiMD0LMl/t6nJueGtrCp79N7ZO1nquxj/FUybJDnKwZGsnW2wjdwBSzA3QEHujoxmxZIptsG43hL7LzXE96w==}
     peerDependencies:
@@ -1356,6 +1596,9 @@ packages:
   uri-js@4.4.1:
     resolution: {integrity: sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==}
 
+  util-deprecate@1.0.2:
+    resolution: {integrity: sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==}
+
   vite-plugin-dts@5.0.2:
     resolution: {integrity: sha512-lNeHS+dwGju6eRmNvZQt8Shwv9j3m98hbHse/lIbLq9q3yE2DcIOBBYQEVUF6tS0kOmv+VA9Z5FqmzFnGe4U8g==}
     peerDependencies:
@@ -1457,6 +1700,15 @@ packages:
   vscode-uri@3.1.0:
     resolution: {integrity: sha512-/BpdSx+yCQGnCvecbyXdxHDkuk55/G3xwnC0GqY4gmQ3j+A+g8kzzgB4Nk/SINjqn6+waqw3EgbVF2QKExkRxQ==}
 
+  vue-component-type-helpers@3.3.11:
+    resolution: {integrity: sha512-LwcxzeliO9fkQcpJG0PoX8X5kmAhKmH9wkpDLxNabwzkQ9Zeib2YVHwFV4pcWmMLfXVfjr/dSV+DaJ3cIPgSNA==}
+
+  vue-eslint-parser@10.4.1:
+    resolution: {integrity: sha512-Gk6gRDj0n/fkRa3C3l0bBheoBckUq/Rs0F/TvMWIS6nzzx67amAViMe9CkNgsP2tXyQONvGiHQESHwFtZ3aYDA==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+    peerDependencies:
+      eslint: ^8.57.0 || ^9.0.0 || ^10.0.0
+
   vue-router@5.1.0:
     resolution: {integrity: sha512-HAbiLzLEHQwxPgvsbOJDAwtavszEgLwri6XfyrsPECIFez8+59xc9LofWVdc/HEaSRT822lJ8H9Ns38VVond5g==}
     peerDependencies:
@@ -1489,9 +1741,29 @@ packages:
       typescript:
         optional: true
 
+  w3c-xmlserializer@5.0.0:
+    resolution: {integrity: sha512-o8qghlI8NZHU1lLPrpi2+Uq7abh4GGPpYANlalzWxyWteJOCsr/P+oPBA49TOLu5FTZO4d3F9MnWJfiMo4BkmA==}
+    engines: {node: '>=18'}
+
+  webidl-conversions@8.0.1:
+    resolution: {integrity: sha512-BMhLD/Sw+GbJC21C/UgyaZX41nPt8bUTg+jWyDeg7e7YN4xOM05YPSIXceACnXVtqyEw/LMClUQMtMZ+PGGpqQ==}
+    engines: {node: '>=20'}
+
   webpack-virtual-modules@0.6.2:
     resolution: {integrity: sha512-66/V2i5hQanC51vBQKPH4aI8NMAcBW59FVBs+rC7eGHupMyfn34q7rZIE+ETlJ+XTevqfUhVVBgSUNSW2flEUQ==}
 
+  whatwg-mimetype@5.0.0:
+    resolution: {integrity: sha512-sXcNcHOC51uPGF0P/D4NVtrkjSU2fNsm9iog4ZvZJsL3rjoDAzXZhkm2MWt1y+PUdggKAYVoMAIYcs78wJ51Cw==}
+    engines: {node: '>=20'}
+
+  whatwg-url@16.0.1:
+    resolution: {integrity: sha512-1to4zXBxmXHV3IiSSEInrreIlu02vUOvrhxJJH5vcxYTBDAx51cqZiKdyTxlecdKNSjj8EcxGBxNf6Vg+945gw==}
+    engines: {node: ^20.19.0 || ^22.12.0 || >=24.0.0}
+
+  whatwg-url@17.1.0:
+    resolution: {integrity: sha512-3GeworPmc2ZfEEHP7lEbUfBX/L75wdEsi0rLNhXcXxnoN5jyq0SL5gCy06SGW2cyTIZdTvWIDQNQoza++vKeaw==}
+    engines: {node: ^22.14.0 || >=24.0.0}
+
   which@2.0.2:
     resolution: {integrity: sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==}
     engines: {node: '>= 8'}
@@ -1506,10 +1778,17 @@ packages:
     resolution: {integrity: sha512-BN22B5eaMMI9UMtjrGd5g5eCYPpCPDUy0FJXbYsaT5zYxjFOckS53SQDE3pWkVoWpHXVb3BrYcEN4Twa55B5cA==}
     engines: {node: '>=0.10.0'}
 
+  xml-name-validator@5.0.0:
+    resolution: {integrity: sha512-EvGK8EJ3DhaHfbRlETOWAS5pO9MZITeauHKJyb8wyajUfQUenkIg2MvLDTZ4T/TgIcm3HU0TFBgWWboAZ30UHg==}
+    engines: {node: '>=18'}
+
   xml-naming@0.1.0:
     resolution: {integrity: sha512-k8KO9hrMyNk6tUWqUfkTEZbezRRpONVOzUTnc97VnCvyj6Tf9lyUR9EDAIeiVLv56jsMcoXEwjW8Kv5yPY52lw==}
     engines: {node: '>=16.0.0'}
 
+  xmlchars@2.2.0:
+    resolution: {integrity: sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw==}
+
   yaml@2.9.0:
     resolution: {integrity: sha512-2AvhNX3mb8zd6Zy7INTtSpl1F15HW6Wnqj0srWlkKLcpYl/gMIMJiyuGq2KeI2YFxUPjdlB+3Lc10seMLtL4cA==}
     engines: {node: '>= 14.6'}
@@ -1521,6 +1800,21 @@ packages:
 
 snapshots:
 
+  '@asamuzakjp/css-color@6.0.7':
+    dependencies:
+      '@csstools/css-calc': 3.3.0(@csstools/css-parser-algorithms@4.0.0(@csstools/css-tokenizer@4.0.0))(@csstools/css-tokenizer@4.0.0)
+      '@csstools/css-color-parser': 4.2.2(@csstools/css-parser-algorithms@4.0.0(@csstools/css-tokenizer@4.0.0))(@csstools/css-tokenizer@4.0.0)
+      '@csstools/css-parser-algorithms': 4.0.0(@csstools/css-tokenizer@4.0.0)
+      '@csstools/css-tokenizer': 4.0.0
+      lru-cache: 11.5.2
+
+  '@asamuzakjp/dom-selector@8.3.2':
+    dependencies:
+      bidi-js: 1.0.3
+      css-tree: 3.2.1
+      is-potential-custom-element-name: 1.0.1
+      lru-cache: 11.5.2
+
   '@babel/generator@8.0.0-rc.6':
     dependencies:
       '@babel/parser': 8.0.0-rc.6
@@ -1556,6 +1850,34 @@ snapshots:
       '@babel/helper-string-parser': 8.0.0-rc.6
       '@babel/helper-validator-identifier': 8.0.0-rc.6
 
+  '@bramus/specificity@2.4.2':
+    dependencies:
+      css-tree: 3.2.1
+
+  '@csstools/color-helpers@6.1.1': {}
+
+  '@csstools/css-calc@3.3.0(@csstools/css-parser-algorithms@4.0.0(@csstools/css-tokenizer@4.0.0))(@csstools/css-tokenizer@4.0.0)':
+    dependencies:
+      '@csstools/css-parser-algorithms': 4.0.0(@csstools/css-tokenizer@4.0.0)
+      '@csstools/css-tokenizer': 4.0.0
+
+  '@csstools/css-color-parser@4.2.2(@csstools/css-parser-algorithms@4.0.0(@csstools/css-tokenizer@4.0.0))(@csstools/css-tokenizer@4.0.0)':
+    dependencies:
+      '@csstools/color-helpers': 6.1.1
+      '@csstools/css-calc': 3.3.0(@csstools/css-parser-algorithms@4.0.0(@csstools/css-tokenizer@4.0.0))(@csstools/css-tokenizer@4.0.0)
+      '@csstools/css-parser-algorithms': 4.0.0(@csstools/css-tokenizer@4.0.0)
+      '@csstools/css-tokenizer': 4.0.0
+
+  '@csstools/css-parser-algorithms@4.0.0(@csstools/css-tokenizer@4.0.0)':
+    dependencies:
+      '@csstools/css-tokenizer': 4.0.0
+
+  '@csstools/css-syntax-patches-for-csstree@1.1.12(css-tree@3.2.1)':
+    optionalDependencies:
+      css-tree: 3.2.1
+
+  '@csstools/css-tokenizer@4.0.0': {}
+
   '@emnapi/core@1.10.0':
     dependencies:
       '@emnapi/wasi-threads': 1.2.1
@@ -1606,6 +1928,8 @@ snapshots:
       '@eslint/core': 1.2.1
       levn: 0.4.1
 
+  '@exodus/bytes@1.15.1': {}
+
   '@humanfs/core@0.19.2':
     dependencies:
       '@humanfs/types': 0.15.0
@@ -1654,6 +1978,8 @@ snapshots:
 
   '@nodable/entities@2.1.1': {}
 
+  '@one-ini/wasm@0.2.1': {}
+
   '@oxc-project/types@0.133.0': {}
 
   '@rolldown/binding-android-arm64@1.0.3':
@@ -2057,6 +2383,17 @@ snapshots:
 
   '@vue/shared@3.5.35': {}
 
+  '@vue/test-utils@2.5.0(@vue/compiler-dom@3.5.35)(@vue/server-renderer@3.5.35(vue@3.5.35(typescript@6.0.3)))(vue@3.5.35(typescript@6.0.3))':
+    dependencies:
+      '@vue/compiler-dom': 3.5.35
+      js-beautify: 2.0.3
+      vue: 3.5.35(typescript@6.0.3)
+      vue-component-type-helpers: 3.3.11
+    optionalDependencies:
+      '@vue/server-renderer': 3.5.35(vue@3.5.35(typescript@6.0.3))
+
+  abbrev@5.0.0: {}
+
   acorn-jsx@5.3.2(acorn@8.16.0):
     dependencies:
       acorn: 8.16.0
@@ -2087,8 +2424,14 @@ snapshots:
 
   balanced-match@4.0.4: {}
 
+  bidi-js@1.0.3:
+    dependencies:
+      require-from-string: 2.0.2
+
   birpc@2.9.0: {}
 
+  boolbase@1.0.0: {}
+
   brace-expansion@5.0.6:
     dependencies:
       balanced-match: 4.0.4
@@ -2099,12 +2442,19 @@ snapshots:
     dependencies:
       readdirp: 5.0.0
 
+  commander@14.0.3: {}
+
   compare-versions@6.1.1: {}
 
   confbox@0.1.8: {}
 
   confbox@0.2.4: {}
 
+  config-chain@1.1.13:
+    dependencies:
+      ini: 1.3.8
+      proto-list: 1.2.4
+
   convert-source-map@2.0.0: {}
 
   copy-anything@4.0.5:
@@ -2117,22 +2467,60 @@ snapshots:
       shebang-command: 2.0.0
       which: 2.0.2
 
+  css-tree@3.2.1:
+    dependencies:
+      mdn-data: 2.27.1
+      source-map-js: 1.2.1
+
+  cssesc@3.0.0: {}
+
   csstype@3.2.3: {}
 
+  data-urls@7.0.0:
+    dependencies:
+      whatwg-mimetype: 5.0.0
+      whatwg-url: 16.0.1
+    transitivePeerDependencies:
+      - '@noble/hashes'
+
   debug@4.4.3:
     dependencies:
       ms: 2.1.3
 
+  decimal.js@10.6.0: {}
+
   deep-is@0.1.4: {}
 
   detect-libc@2.1.2: {}
 
+  editorconfig@3.0.2:
+    dependencies:
+      '@one-ini/wasm': 0.2.1
+      commander: 14.0.3
+      minimatch: 10.2.5
+      semver: 7.8.2
+
   entities@7.0.1: {}
 
+  entities@8.0.0: {}
+
   es-module-lexer@2.1.0: {}
 
   escape-string-regexp@4.0.0: {}
 
+  eslint-plugin-vue@10.10.0(@typescript-eslint/parser@8.60.1(eslint@10.4.1)(typescript@6.0.3))(eslint@10.4.1)(vue-eslint-parser@10.4.1(eslint@10.4.1)):
+    dependencies:
+      '@eslint-community/eslint-utils': 4.9.1(eslint@10.4.1)
+      eslint: 10.4.1
+      natural-compare: 1.4.0
+      nth-check: 2.1.1
+      postcss-selector-parser: 7.1.6
+      semver: 7.8.5
+      vue-eslint-parser: 10.4.1(eslint@10.4.1)
+      xml-name-validator: 5.0.0
+    optionalDependencies:
+      '@typescript-eslint/parser': 8.60.1(eslint@10.4.1)(typescript@6.0.3)
+
   eslint-scope@9.1.2:
     dependencies:
       '@types/esrecurse': 4.3.1
@@ -2253,24 +2641,76 @@ snapshots:
     dependencies:
       is-glob: 4.0.3
 
+  glob@13.0.6:
+    dependencies:
+      minimatch: 10.2.5
+      minipass: 7.1.3
+      path-scurry: 2.0.2
+
   hookable@5.5.3: {}
 
+  html-encoding-sniffer@6.0.0:
+    dependencies:
+      '@exodus/bytes': 1.15.1
+    transitivePeerDependencies:
+      - '@noble/hashes'
+
   ignore@5.3.2: {}
 
   ignore@7.0.5: {}
 
   imurmurhash@0.1.4: {}
 
+  ini@1.3.8: {}
+
   is-extglob@2.1.1: {}
 
   is-glob@4.0.3:
     dependencies:
       is-extglob: 2.1.1
 
+  is-potential-custom-element-name@1.0.1: {}
+
   is-what@5.5.0: {}
 
   isexe@2.0.0: {}
 
+  js-beautify@2.0.3:
+    dependencies:
+      config-chain: 1.1.13
+      editorconfig: 3.0.2
+      glob: 13.0.6
+      js-cookie: 3.0.8
+      nopt: 10.0.1
+
+  js-cookie@3.0.8: {}
+
+  jsdom@30.0.1:
+    dependencies:
+      '@asamuzakjp/css-color': 6.0.7
+      '@asamuzakjp/dom-selector': 8.3.2
+      '@bramus/specificity': 2.4.2
+      '@csstools/css-syntax-patches-for-csstree': 1.1.12(css-tree@3.2.1)
+      '@exodus/bytes': 1.15.1
+      css-tree: 3.2.1
+      data-urls: 7.0.0
+      decimal.js: 10.6.0
+      html-encoding-sniffer: 6.0.0
+      is-potential-custom-element-name: 1.0.1
+      lru-cache: 11.5.2
+      parse5: 8.0.1
+      saxes: 6.0.0
+      symbol-tree: 3.2.4
+      tough-cookie: 6.0.2
+      undici: 8.10.2
+      w3c-xmlserializer: 5.0.0
+      webidl-conversions: 8.0.1
+      whatwg-mimetype: 5.0.0
+      whatwg-url: 17.1.0
+      xml-name-validator: 5.0.0
+    transitivePeerDependencies:
+      - '@noble/hashes'
+
   jsesc@3.1.0: {}
 
   json-buffer@3.0.1: {}
@@ -2351,6 +2791,8 @@ snapshots:
     dependencies:
       p-locate: 5.0.0
 
+  lru-cache@11.5.2: {}
+
   magic-string-ast@1.0.3:
     dependencies:
       magic-string: 0.30.21
@@ -2359,10 +2801,14 @@ snapshots:
     dependencies:
       '@jridgewell/sourcemap-codec': 1.5.5
 
+  mdn-data@2.27.1: {}
+
   minimatch@10.2.5:
     dependencies:
       brace-expansion: 5.0.6
 
+  minipass@7.1.3: {}
+
   mitt@3.0.1: {}
 
   mlly@1.8.2:
@@ -2380,6 +2826,14 @@ snapshots:
 
   natural-compare@1.4.0: {}
 
+  nopt@10.0.1:
+    dependencies:
+      abbrev: 5.0.0
+
+  nth-check@2.1.1:
+    dependencies:
+      boolbase: 1.0.0
+
   obug@2.1.2: {}
 
   optionator@0.9.4:
@@ -2399,6 +2853,10 @@ snapshots:
     dependencies:
       p-limit: 3.1.0
 
+  parse5@8.0.1:
+    dependencies:
+      entities: 8.0.0
+
   path-browserify@1.0.1: {}
 
   path-exists@4.0.0: {}
@@ -2407,6 +2865,11 @@ snapshots:
 
   path-key@3.1.1: {}
 
+  path-scurry@2.0.2:
+    dependencies:
+      lru-cache: 11.5.2
+      minipass: 7.1.3
+
   pathe@2.0.3: {}
 
   perfect-debounce@1.0.0: {}
@@ -2436,6 +2899,11 @@ snapshots:
       exsolve: 1.0.8
       pathe: 2.0.3
 
+  postcss-selector-parser@7.1.6:
+    dependencies:
+      cssesc: 3.0.0
+      util-deprecate: 1.0.2
+
   postcss@8.5.15:
     dependencies:
       nanoid: 3.3.12
@@ -2446,12 +2914,16 @@ snapshots:
 
   prettier@3.8.3: {}
 
+  proto-list@1.2.4: {}
+
   punycode@2.3.1: {}
 
   quansync@0.2.11: {}
 
   readdirp@5.0.0: {}
 
+  require-from-string@2.0.2: {}
+
   rfdc@1.4.1: {}
 
   rolldown@1.0.3:
@@ -2475,10 +2947,16 @@ snapshots:
       '@rolldown/binding-win32-arm64-msvc': 1.0.3
       '@rolldown/binding-win32-x64-msvc': 1.0.3
 
+  saxes@6.0.0:
+    dependencies:
+      xmlchars: 2.2.0
+
   scule@1.3.0: {}
 
   semver@7.8.2: {}
 
+  semver@7.8.5: {}
+
   shebang-command@2.0.0:
     dependencies:
       shebang-regex: 3.0.0
@@ -2501,6 +2979,8 @@ snapshots:
     dependencies:
       copy-anything: 4.0.5
 
+  symbol-tree@3.2.4: {}
+
   tinybench@2.9.0: {}
 
   tinyexec@1.2.4: {}
@@ -2512,6 +2992,20 @@ snapshots:
 
   tinyrainbow@3.1.0: {}
 
+  tldts-core@7.4.11: {}
+
+  tldts@7.4.11:
+    dependencies:
+      tldts-core: 7.4.11
+
+  tough-cookie@6.0.2:
+    dependencies:
+      tldts: 7.4.11
+
+  tr46@6.0.0:
+    dependencies:
+      punycode: 2.3.1
+
   ts-api-utils@2.5.0(typescript@6.0.3):
     dependencies:
       typescript: 6.0.3
@@ -2547,6 +3041,8 @@ snapshots:
 
   ufo@1.6.4: {}
 
+  undici@8.10.2: {}
+
   unplugin-dts@1.0.2(rolldown@1.0.3)(typescript@6.0.3)(vite@8.0.16(yaml@2.9.0)):
     dependencies:
       '@rollup/pluginutils': 5.4.0
@@ -2586,6 +3082,8 @@ snapshots:
     dependencies:
       punycode: 2.3.1
 
+  util-deprecate@1.0.2: {}
+
   vite-plugin-dts@5.0.2(rolldown@1.0.3)(typescript@6.0.3)(vite@8.0.16(yaml@2.9.0)):
     dependencies:
       unplugin-dts: 1.0.2(rolldown@1.0.3)(typescript@6.0.3)(vite@8.0.16(yaml@2.9.0))
@@ -2611,7 +3109,7 @@ snapshots:
       fsevents: 2.3.3
       yaml: 2.9.0
 
-  vitest@4.1.8(vite@8.0.16(yaml@2.9.0)):
+  vitest@4.1.8(jsdom@30.0.1)(vite@8.0.16(yaml@2.9.0)):
     dependencies:
       '@vitest/expect': 4.1.8
       '@vitest/mocker': 4.1.8(vite@8.0.16(yaml@2.9.0))
@@ -2633,11 +3131,27 @@ snapshots:
       tinyrainbow: 3.1.0
       vite: 8.0.16(yaml@2.9.0)
       why-is-node-running: 2.3.0
+    optionalDependencies:
+      jsdom: 30.0.1
     transitivePeerDependencies:
       - msw
 
   vscode-uri@3.1.0: {}
 
+  vue-component-type-helpers@3.3.11: {}
+
+  vue-eslint-parser@10.4.1(eslint@10.4.1):
+    dependencies:
+      debug: 4.4.3
+      eslint: 10.4.1
+      eslint-scope: 9.1.2
+      eslint-visitor-keys: 5.0.1
+      espree: 11.2.0
+      esquery: 1.7.0
+      semver: 7.8.2
+    transitivePeerDependencies:
+      - supports-color
+
   vue-router@5.1.0(@vue/compiler-sfc@3.5.35)(pinia@3.0.4(typescript@6.0.3)(vue@3.5.35(typescript@6.0.3)))(vite@8.0.16(yaml@2.9.0))(vue@3.5.35(typescript@6.0.3)):
     dependencies:
       '@babel/generator': 8.0.0-rc.6
@@ -2679,8 +3193,32 @@ snapshots:
     optionalDependencies:
       typescript: 6.0.3
 
+  w3c-xmlserializer@5.0.0:
+    dependencies:
+      xml-name-validator: 5.0.0
+
+  webidl-conversions@8.0.1: {}
+
   webpack-virtual-modules@0.6.2: {}
 
+  whatwg-mimetype@5.0.0: {}
+
+  whatwg-url@16.0.1:
+    dependencies:
+      '@exodus/bytes': 1.15.1
+      tr46: 6.0.0
+      webidl-conversions: 8.0.1
+    transitivePeerDependencies:
+      - '@noble/hashes'
+
+  whatwg-url@17.1.0:
+    dependencies:
+      '@exodus/bytes': 1.15.1
+      tr46: 6.0.0
+      webidl-conversions: 8.0.1
+    transitivePeerDependencies:
+      - '@noble/hashes'
+
   which@2.0.2:
     dependencies:
       isexe: 2.0.0
@@ -2692,8 +3230,12 @@ snapshots:
 
   word-wrap@1.2.5: {}
 
+  xml-name-validator@5.0.0: {}
+
   xml-naming@0.1.0: {}
 
+  xmlchars@2.2.0: {}
+
   yaml@2.9.0: {}
 
   yocto-queue@0.1.0: {}
diff --git a/turbo.json b/turbo.json
index af82e63..a9b05f6 100644
--- a/turbo.json
+++ b/turbo.json
@@ -1,10 +1,15 @@
 {
   "$schema": "https://turbo.build/schema.json",
+  "globalDependencies": ["eslint.config.mjs", "tsconfig.base.json", "vitest.config.ts"],
   "tasks": {
     "build": {
       "dependsOn": ["^build"],
       "outputs": ["dist/**"]
     },
+    "@jauto/ui#build": {
+      "dependsOn": ["^build"],
+      "outputs": []
+    },
     "dev": {
       "dependsOn": ["^build"],
       "cache": false,
diff --git a/vitest.config.ts b/vitest.config.ts
new file mode 100644
index 0000000..249cb1b
--- /dev/null
+++ b/vitest.config.ts
@@ -0,0 +1,7 @@
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  test: {
+    projects: ['packages/core', 'packages/jff', 'packages/simulator', 'packages/file-io', 'packages/ui/vitest.config.ts'],
+  },
+});
diff --git a/vitest.workspace.ts b/vitest.workspace.ts
deleted file mode 100644
index 1367ab2..0000000
--- a/vitest.workspace.ts
+++ /dev/null
@@ -1,7 +0,0 @@
-import { defineWorkspace } from 'vitest/config';
-
-export default defineWorkspace([
-  'packages/core',
-  'packages/jff',
-  'packages/simulator',
-]);

From a85d876b2ba07d322a873b34609d20032e6c2190 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sat, 5 Sep 2026 20:46:52 -0300
Subject: [PATCH 04/43] fix(core): enforce document identity and
 machine-specific types

---
 ACTION_PLAN.md                                |  5 +-
 packages/core/__tests__/identity.test.ts      | 37 +++++++++++
 packages/core/src/graph.ts                    |  6 ++
 packages/core/src/ids.ts                      | 16 +++--
 packages/core/src/index.ts                    |  2 +
 packages/core/src/types.ts                    | 16 ++---
 packages/core/src/validation.ts               | 64 +++++++++++++------
 .../src/composables/useInteractionManager.ts  |  4 +-
 8 files changed, 112 insertions(+), 38 deletions(-)
 create mode 100644 packages/core/__tests__/identity.test.ts

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index cffedd7..f1535e8 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -86,8 +86,8 @@ No source or configuration files were changed during the audit. Native installer
 **Priority:** P1  
 **Dependencies:** Compatibility rules and initial regression cases from step 1
 
-- [ ] Make automaton types a discriminated union with machine-specific transition schemas.
-- [ ] Allocate internal IDs without collisions and enforce graph uniqueness.
+- [x] Make automaton types a discriminated union with machine-specific transition schemas.
+- [x] Allocate internal IDs without collisions and enforce graph uniqueness.
 - [ ] Map internal IDs to unique integer IDs on export, updating all transition endpoints consistently.
 - [ ] Use a shared XML writer or escaping utility for every text field and attribute; reject characters forbidden by XML.
 - [ ] Preserve semantic whitespace and trim only structural fields where appropriate.
@@ -243,5 +243,6 @@ Before calling the automata milestone dependable:
 
 - Compatibility contract: added `docs/COMPATIBILITY.md` with an honest baseline matrix, first-release semantics, unsupported-feature policy and verification requirements. Validated against the audit's official JFLAP references and current implementation. No application behavior changed.
 - Test and CI foundation: enabled Vue linting, added UI/history and file-service tests, retained the official PDA fixture with provenance, replaced obsolete Vitest workspace configuration, and added PR/release checks. Validation: 86 tests passed; lint, type checking and both frontend builds passed; Turbo task graph verified. Full simulator conformance and installed-platform checks remain outstanding.
+- Document identity: made machine kinds discriminated, allocated IDs against the open document, rejected duplicate additions and introduced structural diagnostics for damaged graphs. Validation: 40 core tests passed; all workspace type checks and lint passed. Structural diagnostics will be connected to file opening/export in the next feature.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/packages/core/__tests__/identity.test.ts b/packages/core/__tests__/identity.test.ts
new file mode 100644
index 0000000..32c776d
--- /dev/null
+++ b/packages/core/__tests__/identity.test.ts
@@ -0,0 +1,37 @@
+import { beforeEach, describe, expect, it } from 'vitest';
+import { addState, addTransition } from '../src/graph';
+import { generateStateId, generateTransitionId, resetIdCounters } from '../src/ids';
+import { createEmptyAutomaton, type FiniteAutomaton, type TuringMachine } from '../src/types';
+import { validateStructure } from '../src/validation';
+
+const state = { id: 's0', name: 'q0', x: 0, y: 0, isInitial: true, isFinal: false };
+
+describe('document identity invariants', () => {
+  beforeEach(resetIdCounters);
+
+  it('allocates unused IDs after reopening a document in a fresh session', () => {
+    expect(generateStateId([{ id: 's0' }, { id: 's1' }])).toBe('s2');
+    expect(generateTransitionId([{ id: 't0' }])).toBe('t1');
+  });
+
+  it('refuses duplicate IDs at the mutation boundary', () => {
+    const fa = addState(createEmptyAutomaton('fa'), state);
+    expect(() => addState(fa, state)).toThrow('already exists');
+    const edge = { id: 't0', from: 's0', to: 's0', read: 'a' };
+    expect(() => addTransition(addTransition(fa, edge), edge)).toThrow('already exists');
+  });
+
+  it('diagnoses damaged imports without rejecting an empty editable draft', () => {
+    expect(validateStructure(createEmptyAutomaton('fa'))).toEqual([]);
+    const fa: FiniteAutomaton = { kind: 'fa', states: [state, { ...state, x: NaN }], transitions: [{ id: 't', from: 's0', to: 'missing', read: '' }] };
+    const diagnostics = validateStructure(fa);
+    expect(diagnostics.map((d) => d.message).join('\n')).toMatch(/Duplicate.*state ID/);
+    expect(diagnostics.some((d) => d.stateId === 's0' && d.message.includes('finite'))).toBe(true);
+    expect(diagnostics.some((d) => d.transitionId === 't' && d.message.includes('missing'))).toBe(true);
+  });
+
+  it('validates runtime TM properties', () => {
+    const tm = { kind: 'turing', tapes: 0, states: [state], transitions: [{ id: 't', from: 's0', to: 's0', read: '', write: '', move: 'UP' }] } as unknown as TuringMachine;
+    expect(validateStructure(tm)).toHaveLength(2);
+  });
+});
diff --git a/packages/core/src/graph.ts b/packages/core/src/graph.ts
index 26eacb2..f28557a 100644
--- a/packages/core/src/graph.ts
+++ b/packages/core/src/graph.ts
@@ -12,6 +12,9 @@ export function addState<T extends AnyTransition>(
   automaton: Automaton<T>,
   state: AutomatonState,
 ): Automaton<T> {
+  if (automaton.states.some((s) => s.id === state.id)) {
+    throw new Error(`State ID already exists: ${state.id}`);
+  }
   return { ...automaton, states: [...automaton.states, state] };
 }
 
@@ -41,6 +44,9 @@ export function addTransition<T extends AnyTransition>(
   automaton: Automaton<T>,
   transition: T,
 ): Automaton<T> {
+  if (automaton.transitions.some((t) => t.id === transition.id)) {
+    throw new Error(`Transition ID already exists: ${transition.id}`);
+  }
   return { ...automaton, transitions: [...automaton.transitions, transition] };
 }
 
diff --git a/packages/core/src/ids.ts b/packages/core/src/ids.ts
index 7ff333b..7ded0f9 100644
--- a/packages/core/src/ids.ts
+++ b/packages/core/src/ids.ts
@@ -1,12 +1,18 @@
 let stateCounter = 0;
 let transitionCounter = 0;
 
-export function generateStateId(): string {
-  return `s${stateCounter++}`;
+export function generateStateId(existing: readonly { id: string }[] = []): string {
+  const used = new Set(existing.map((item) => item.id));
+  let id: string;
+  do { id = `s${stateCounter++}`; } while (used.has(id));
+  return id;
 }
 
-export function generateTransitionId(): string {
-  return `t${transitionCounter++}`;
+export function generateTransitionId(existing: readonly { id: string }[] = []): string {
+  const used = new Set(existing.map((item) => item.id));
+  let id: string;
+  do { id = `t${transitionCounter++}`; } while (used.has(id));
+  return id;
 }
 
 export function resetIdCounters(): void {
@@ -40,4 +46,4 @@ class IncrementingIdGenerator implements IdGenerator {
 
 export function createIdGenerator(): IdGenerator {
   return new IncrementingIdGenerator();
-}
\ No newline at end of file
+}
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index 4820f8e..fe504a1 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -35,7 +35,9 @@ export {
   isComplete,
   hasUnreachableStates,
   validate,
+  validateStructure,
 } from './validation';
+export type { ValidationDiagnostic } from './validation';
 
 export { generateStateId, generateTransitionId, createIdGenerator, resetIdCounters } from './ids';
 export type { IdGenerator } from './ids';
diff --git a/packages/core/src/types.ts b/packages/core/src/types.ts
index a2a7775..6086b64 100644
--- a/packages/core/src/types.ts
+++ b/packages/core/src/types.ts
@@ -37,16 +37,16 @@ export interface TMTransition {
 
 export type AnyTransition = FATransition | PDATransition | TMTransition;
 
-export interface Automaton<T extends AnyTransition> {
-  readonly kind: AutomatonKind;
+export interface Automaton<T extends AnyTransition, K extends AutomatonKind = AutomatonKind> {
+  readonly kind: K;
   readonly states: readonly AutomatonState[];
   readonly transitions: readonly T[];
   readonly meta?: { readonly comment?: string };
 }
 
-export type FiniteAutomaton = Automaton<FATransition>;
-export type PushdownAutomaton = Automaton<PDATransition>;
-export type TuringMachine = Automaton<TMTransition> & { readonly tapes: number };
+export type FiniteAutomaton = Automaton<FATransition, 'fa'>;
+export type PushdownAutomaton = Automaton<PDATransition, 'pda'>;
+export type TuringMachine = Automaton<TMTransition, 'turing'> & { readonly tapes: number };
 
 export type AnyAutomaton = FiniteAutomaton | PushdownAutomaton | TuringMachine;
 
@@ -58,10 +58,10 @@ export function createEmptyAutomaton(kind: AutomatonKind): AnyAutomaton {
   const base = { states: [], transitions: [], meta: {} };
   switch (kind) {
     case 'fa':
-      return { ...base, kind: 'fa' } as FiniteAutomaton;
+      return { ...base, kind: 'fa' };
     case 'pda':
-      return { ...base, kind: 'pda' } as PushdownAutomaton;
+      return { ...base, kind: 'pda' };
     case 'turing':
-      return { ...base, kind: 'turing', tapes: 1 } as TuringMachine;
+      return { ...base, kind: 'turing', tapes: 1 };
   }
 }
diff --git a/packages/core/src/validation.ts b/packages/core/src/validation.ts
index 35adc71..ae52896 100644
--- a/packages/core/src/validation.ts
+++ b/packages/core/src/validation.ts
@@ -11,6 +11,7 @@ export interface ValidationDiagnostic {
   readonly level: 'error' | 'warning';
   readonly message: string;
   readonly stateId?: string;
+  readonly transitionId?: string;
 }
 
 export function hasInitialState(automaton: AnyAutomaton): boolean {
@@ -124,37 +125,58 @@ export function hasUnreachableStates(automaton: AnyAutomaton): boolean {
   return automaton.states.some((s) => !reachable.has(s.id));
 }
 
-export function validate(automaton: AnyAutomaton): ValidationDiagnostic[] {
+/** Structural errors prevent safe editing/export; incomplete drafts are allowed. */
+export function validateStructure(automaton: AnyAutomaton): ValidationDiagnostic[] {
   const diagnostics: ValidationDiagnostic[] = [];
+  const stateIds = new Set<string>();
+  for (const state of automaton.states) {
+    if (!state.id || stateIds.has(state.id)) {
+      diagnostics.push({ level: 'error', message: `Duplicate or empty state ID: "${state.id}"`, stateId: state.id });
+    }
+    stateIds.add(state.id);
+    if (!Number.isFinite(state.x) || !Number.isFinite(state.y)) {
+      diagnostics.push({ level: 'error', message: 'State coordinates must be finite numbers', stateId: state.id });
+    }
+  }
+  if (automaton.states.filter((s) => s.isInitial).length > 1) {
+    diagnostics.push({ level: 'error', message: 'Multiple initial states defined' });
+  }
+  const transitionIds = new Set<string>();
+  for (const t of automaton.transitions) {
+    if (!t.id || transitionIds.has(t.id)) {
+      diagnostics.push({ level: 'error', message: `Duplicate or empty transition ID: "${t.id}"`, transitionId: t.id });
+    }
+    transitionIds.add(t.id);
+    for (const [role, id] of [['source', t.from], ['target', t.to]]) {
+      if (!stateIds.has(id!)) {
+        diagnostics.push({ level: 'error', message: `Transition references missing ${role} state "${id}"`, transitionId: t.id });
+      }
+    }
+  }
+  if (automaton.kind === 'turing') {
+    if (!Number.isInteger(automaton.tapes) || automaton.tapes < 1) {
+      diagnostics.push({ level: 'error', message: 'Tape count must be a positive integer' });
+    }
+    for (const t of automaton.transitions) {
+      if (!['L', 'R', 'S'].includes(t.move)) {
+        diagnostics.push({ level: 'error', message: 'TM movement must be L, R or S', transitionId: t.id });
+      }
+    }
+  }
+  return diagnostics;
+}
+
+export function validate(automaton: AnyAutomaton): ValidationDiagnostic[] {
+  const diagnostics = validateStructure(automaton);
 
   if (!hasInitialState(automaton)) {
     diagnostics.push({ level: 'error', message: 'No initial state defined' });
   }
 
-  const initialStates = automaton.states.filter((s) => s.isInitial);
-  if (initialStates.length > 1) {
-    diagnostics.push({ level: 'error', message: 'Multiple initial states defined' });
-  }
-
   if (!automaton.states.some((s) => s.isFinal)) {
     diagnostics.push({ level: 'warning', message: 'No accepting (final) states defined' });
   }
 
-  for (const t of automaton.transitions) {
-    if (!automaton.states.some((s) => s.id === t.from)) {
-      diagnostics.push({
-        level: 'error',
-        message: `Transition references missing source state "${t.from}"`,
-      });
-    }
-    if (!automaton.states.some((s) => s.id === t.to)) {
-      diagnostics.push({
-        level: 'error',
-        message: `Transition references missing target state "${t.to}"`,
-      });
-    }
-  }
-
   if (hasUnreachableStates(automaton)) {
     diagnostics.push({ level: 'warning', message: 'Automaton has unreachable states' });
   }
diff --git a/packages/ui/src/composables/useInteractionManager.ts b/packages/ui/src/composables/useInteractionManager.ts
index 0abe380..ab3ee8c 100644
--- a/packages/ui/src/composables/useInteractionManager.ts
+++ b/packages/ui/src/composables/useInteractionManager.ts
@@ -52,7 +52,7 @@ export function useInteractionManager(
   function addStateAt(x: number, y: number) {
     const name = nextStateName();
     const newState: AutomatonState = {
-      id: generateStateId(),
+      id: generateStateId(docStore.automaton.states),
       name,
       x,
       y,
@@ -191,7 +191,7 @@ export function useInteractionManager(
 
       if (targetState) {
         const kind = docStore.automaton.kind;
-        const id = generateTransitionId();
+        const id = generateTransitionId(docStore.automaton.transitions);
         let transition;
         if (kind === 'pda') {
           transition = { id, from: transitionSourceId.value, to: targetState.id, read: '', pop: '', push: '' };

From 4fa3a979ed297f369d86a8aef9c9119eb3550ff8 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 10:40:37 -0300
Subject: [PATCH 05/43] fix(jff): preserve supported documents and reject lossy
 imports

---
 ACTION_PLAN.md                                | 17 ++--
 apps/desktop/src/renderer/src/App.vue         |  4 +-
 .../src/renderer/src/DesktopAppHeader.vue     |  4 +-
 apps/web/src/App.vue                          |  2 +-
 apps/web/src/AppHeader.vue                    |  2 +-
 docs/COMPATIBILITY.md                         | 12 ++-
 packages/core/src/index.ts                    |  2 +
 packages/core/src/types.ts                    | 19 +++-
 .../file-io/__tests__/file-service.test.ts    |  6 ++
 packages/file-io/src/open.ts                  |  7 +-
 packages/jff/__tests__/compatibility.test.ts  | 87 ++++++++++++++++
 packages/jff/src/parser.ts                    | 98 +++++++++----------
 packages/jff/src/parsers/fa.ts                | 14 +--
 packages/jff/src/parsers/pda.ts               | 20 ++--
 packages/jff/src/parsers/states.ts            | 14 +--
 packages/jff/src/parsers/tm.ts                | 33 +++++--
 packages/jff/src/serializer.ts                | 41 +++++++-
 packages/jff/src/serializers/fa.ts            |  8 +-
 packages/jff/src/serializers/pda.ts           | 12 ++-
 packages/jff/src/serializers/states.ts        | 10 +-
 packages/jff/src/serializers/tm.ts            | 12 ++-
 packages/jff/src/xml.ts                       | 94 ++++++++++++++++++
 packages/ui/__tests__/import-notices.test.ts  | 19 ++++
 packages/ui/src/components/EditorView.vue     |  8 ++
 packages/ui/src/stores/document.ts            |  6 +-
 25 files changed, 414 insertions(+), 137 deletions(-)
 create mode 100644 packages/jff/__tests__/compatibility.test.ts
 create mode 100644 packages/jff/src/xml.ts
 create mode 100644 packages/ui/__tests__/import-notices.test.ts

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index f1535e8..1b5b6b4 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -88,14 +88,14 @@ No source or configuration files were changed during the audit. Native installer
 
 - [x] Make automaton types a discriminated union with machine-specific transition schemas.
 - [x] Allocate internal IDs without collisions and enforce graph uniqueness.
-- [ ] Map internal IDs to unique integer IDs on export, updating all transition endpoints consistently.
-- [ ] Use a shared XML writer or escaping utility for every text field and attribute; reject characters forbidden by XML.
-- [ ] Preserve semantic whitespace and trim only structural fields where appropriate.
-- [ ] Validate XML structure, document shape, references, initial-state rules, finite coordinates, tape counts, and movement values.
-- [ ] Preserve notes, state labels, and transition curve geometry.
-- [ ] Retain compatible document extensions or explicitly diagnose information that cannot be preserved.
-- [ ] Carry structured import diagnostics through file I/O to the UI.
-- [ ] Detect multi-tape and building-block documents. Reject unsupported editable imports or offer an explicit mode preserving the original contents.
+- [x] Map internal IDs to unique integer IDs on export, updating all transition endpoints consistently.
+- [x] Use a shared XML writer or escaping utility for every text field and attribute; reject characters forbidden by XML.
+- [x] Preserve semantic whitespace and trim only structural fields where appropriate.
+- [x] Validate XML structure, document shape, references, initial-state rules, finite coordinates, tape counts, and movement values.
+- [x] Preserve notes, state labels, and transition curve geometry.
+- [x] Retain compatible document extensions or explicitly diagnose information that cannot be preserved.
+- [x] Carry structured import diagnostics through file I/O to the UI.
+- [x] Detect multi-tape and building-block documents. Reject unsupported editable imports or offer an explicit mode preserving the original contents.
 
 **Acceptance criteria:** Supported files survive exchange in both directions without altered symbols, topology, annotations, or execution meaning. Unsupported constructs and invalid graphs produce actionable diagnostics.
 
@@ -244,5 +244,6 @@ Before calling the automata milestone dependable:
 - Compatibility contract: added `docs/COMPATIBILITY.md` with an honest baseline matrix, first-release semantics, unsupported-feature policy and verification requirements. Validated against the audit's official JFLAP references and current implementation. No application behavior changed.
 - Test and CI foundation: enabled Vue linting, added UI/history and file-service tests, retained the official PDA fixture with provenance, replaced obsolete Vitest workspace configuration, and added PR/release checks. Validation: 86 tests passed; lint, type checking and both frontend builds passed; Turbo task graph verified. Full simulator conformance and installed-platform checks remain outstanding.
 - Document identity: made machine kinds discriminated, allocated IDs against the open document, rejected duplicate additions and introduced structural diagnostics for damaged graphs. Validation: 40 core tests passed; all workspace type checks and lint passed. Structural diagnostics will be connected to file opening/export in the next feature.
+- Safe JFF exchange: added strict XML/document validation, loss-preventing rejection for unsupported constructs, numeric state-ID mapping, semantic XML entity/whitespace preservation, notes and transition control-point round trips, and visible import notices. Validation: 39 JFF tests and 3 UI tests passed; workspace type checks and lint passed. Independent XML checks cover generated IDs and references. Reopening generated files in the JFLAP application remains an external conformance gate.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/apps/desktop/src/renderer/src/App.vue b/apps/desktop/src/renderer/src/App.vue
index 2c02cbc..e830779 100644
--- a/apps/desktop/src/renderer/src/App.vue
+++ b/apps/desktop/src/renderer/src/App.vue
@@ -45,13 +45,13 @@ async function handleOpen() {
   try {
     const result = await openAutomaton(fileService);
     if (result) {
-      docStore.loadAutomaton(result.automaton, result.fileName);
+      docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
       historyStore.clear();
       simStore.stop();
       updateTitle();
     }
   } catch (err) {
-    console.error('Failed to open:', err);
+    window.alert(`Failed to open: ${err instanceof Error ? err.message : String(err)}`);
   }
 }
 
diff --git a/apps/desktop/src/renderer/src/DesktopAppHeader.vue b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
index b0afced..96e8a49 100644
--- a/apps/desktop/src/renderer/src/DesktopAppHeader.vue
+++ b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
@@ -50,12 +50,12 @@ async function openFile() {
   try {
     const result = await openAutomaton(fileService);
     if (result) {
-      docStore.loadAutomaton(result.automaton, result.fileName);
+      docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
       historyStore.clear();
       simStore.stop();
     }
   } catch (err) {
-    console.error('Failed to open:', err);
+    window.alert(`Failed to open: ${err instanceof Error ? err.message : String(err)}`);
   }
 }
 
diff --git a/apps/web/src/App.vue b/apps/web/src/App.vue
index 325d635..05c3ddd 100644
--- a/apps/web/src/App.vue
+++ b/apps/web/src/App.vue
@@ -22,7 +22,7 @@ async function handleOpen() {
   try {
     const result = await openAutomaton(fileService);
     if (result) {
-      docStore.loadAutomaton(result.automaton, result.fileName);
+      docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
       historyStore.clear();
       simStore.stop();
     }
diff --git a/apps/web/src/AppHeader.vue b/apps/web/src/AppHeader.vue
index 64d8bb8..5095ab3 100644
--- a/apps/web/src/AppHeader.vue
+++ b/apps/web/src/AppHeader.vue
@@ -42,7 +42,7 @@ async function openFile() {
   try {
     const result = await openAutomaton(fileService);
     if (result) {
-      docStore.loadAutomaton(result.automaton, result.fileName);
+      docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
       historyStore.clear();
       simStore.stop();
     }
diff --git a/docs/COMPATIBILITY.md b/docs/COMPATIBILITY.md
index 760f96f..65eec4e 100644
--- a/docs/COMPATIBILITY.md
+++ b/docs/COMPATIBILITY.md
@@ -8,11 +8,11 @@ This table records the audited baseline. Update a row only after its independent
 
 | Document or feature | Import | Preservation | Execution |
 | --- | --- | --- | --- |
-| Finite automata | Basic fixtures pass | Known ID, XML escaping and whitespace defects | DFA subset; NFA engine is not connected to the editor |
-| Pushdown automata | Basic fixtures pass | Known XML escaping and whitespace defects | Initial stack, string operations and branching require repair |
-| Single-tape Turing machines | Basic fixtures pass | Known XML escaping defects | Deterministic literal-symbol subset |
-| Notes and transition control points | Not represented | Lost on export | Layout only |
-| Multi-tape and building-block TMs | Unsafe partial parsing; must be rejected until supported | Not preserved | Unsupported |
+| Finite automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | DFA subset; NFA engine is not connected to the editor |
+| Pushdown automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | Initial stack, string operations and branching require repair |
+| Single-tape Turing machines | Validated literal single-tape subset | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | Deterministic literal-symbol subset |
+| Notes and transition control points | Preserved | Round-trip covered by automated tests | Layout only; editing UI is pending |
+| Multi-tape and building-block TMs | Rejected with an actionable error | Not editable | Unsupported |
 | Regular expressions, grammars, Mealy/Moore, L-systems, pumping exercises | Unsupported | Unsupported | Unsupported |
 
 ## First release contract
@@ -39,6 +39,8 @@ The first dependable milestone covers finite automata (including nondeterminism
 
 Fixtures and their provenance are version-controlled so normal tests do not depend on live downloads. Native/JFLAP checks that require external runtimes must be reported separately when unavailable; they must not silently pass.
 
+Current automated exchange checks validate exported XML independently and enforce JFLAP-compatible integer state IDs. Reopening generated files in the JFLAP 7.1 application is still a manual/external conformance gate and remains pending.
+
 ## References
 
 - [JFLAP 7.1 source archive](https://www.jflap.org/jflaptmp/july27-18/JFLAP7.1_With_Source.jar)
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index fe504a1..e9a40d3 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -1,6 +1,8 @@
 export type {
   AutomatonKind,
   AutomatonState,
+  AutomatonNote,
+  TransitionLayout,
   FATransition,
   PDATransition,
   TMTransition,
diff --git a/packages/core/src/types.ts b/packages/core/src/types.ts
index 6086b64..3486c07 100644
--- a/packages/core/src/types.ts
+++ b/packages/core/src/types.ts
@@ -10,14 +10,19 @@ export interface AutomatonState {
   readonly label?: string;
 }
 
-export interface FATransition {
+export interface TransitionLayout {
+  readonly controlX?: number;
+  readonly controlY?: number;
+}
+
+export interface FATransition extends TransitionLayout {
   readonly id: string;
   readonly from: string;
   readonly to: string;
   readonly read: string;
 }
 
-export interface PDATransition {
+export interface PDATransition extends TransitionLayout {
   readonly id: string;
   readonly from: string;
   readonly to: string;
@@ -26,7 +31,7 @@ export interface PDATransition {
   readonly push: string;
 }
 
-export interface TMTransition {
+export interface TMTransition extends TransitionLayout {
   readonly id: string;
   readonly from: string;
   readonly to: string;
@@ -37,11 +42,17 @@ export interface TMTransition {
 
 export type AnyTransition = FATransition | PDATransition | TMTransition;
 
+export interface AutomatonNote {
+  readonly text: string;
+  readonly x: number;
+  readonly y: number;
+}
+
 export interface Automaton<T extends AnyTransition, K extends AutomatonKind = AutomatonKind> {
   readonly kind: K;
   readonly states: readonly AutomatonState[];
   readonly transitions: readonly T[];
-  readonly meta?: { readonly comment?: string };
+  readonly meta?: { readonly comment?: string; readonly notes?: readonly AutomatonNote[] };
 }
 
 export type FiniteAutomaton = Automaton<FATransition, 'fa'>;
diff --git a/packages/file-io/__tests__/file-service.test.ts b/packages/file-io/__tests__/file-service.test.ts
index 9773b6c..bf8c7c9 100644
--- a/packages/file-io/__tests__/file-service.test.ts
+++ b/packages/file-io/__tests__/file-service.test.ts
@@ -9,6 +9,12 @@ function service(): FileService {
 }
 
 describe('file service boundary', () => {
+  it('carries import diagnostics through the platform boundary', async () => {
+    const files = service();
+    vi.mocked(files.openFile).mockResolvedValue({ name: 'draft.jff', content: '<structure><type>fa</type><automaton/></structure>' });
+    const result = await openAutomaton(files);
+    expect(result?.warnings[0]?.message).toContain('initial state');
+  });
   it('keeps canceled opens distinct from parse failures', async () => {
     const files = service();
     await expect(openAutomaton(files)).resolves.toBeNull();
diff --git a/packages/file-io/src/open.ts b/packages/file-io/src/open.ts
index 75d6c39..d9481a7 100644
--- a/packages/file-io/src/open.ts
+++ b/packages/file-io/src/open.ts
@@ -5,6 +5,7 @@ import type { FileService } from './file-service';
 export interface OpenResult {
   automaton: AnyAutomaton;
   fileName: string;
+  warnings: readonly { message: string; context?: string }[];
 }
 
 export class FileOpenError extends Error {
@@ -19,8 +20,8 @@ export async function openAutomaton(fileService: FileService): Promise<OpenResul
   if (!file) return null;
 
   try {
-    const { automaton } = parseJFF(file.content);
-    return { automaton, fileName: file.name };
+    const { automaton, warnings } = parseJFF(file.content);
+    return { automaton, fileName: file.name, warnings };
   } catch (e) {
     if (e instanceof JFFParseError) {
       throw new FileOpenError(`Failed to parse file "${file.name}": ${e.message}`);
@@ -30,4 +31,4 @@ export async function openAutomaton(fileService: FileService): Promise<OpenResul
     }
     throw new FileOpenError(`Failed to parse file "${file.name}": Unknown error`);
   }
-}
\ No newline at end of file
+}
diff --git a/packages/jff/__tests__/compatibility.test.ts b/packages/jff/__tests__/compatibility.test.ts
new file mode 100644
index 0000000..4ec2d22
--- /dev/null
+++ b/packages/jff/__tests__/compatibility.test.ts
@@ -0,0 +1,87 @@
+import { describe, expect, it } from 'vitest';
+import { XMLParser, XMLValidator } from 'fast-xml-parser';
+import type { AnyAutomaton, FiniteAutomaton } from '@jauto/core';
+import { parseJFF } from '../src/parser';
+import { serializeJFF } from '../src/serializer';
+
+const state = { id: 's0', name: 'q0', x: 0, y: 0, isInitial: true, isFinal: false };
+const graph: FiniteAutomaton = { kind: 'fa', states: [state, { ...state, id: 's1', name: 'q1', isInitial: false, isFinal: true }], transitions: [{ id: 't', from: 's0', to: 's1', read: '' }] };
+const wrap = (body: string, kind = 'fa', extra = '') => `<structure><type>${kind}</type>${extra}<automaton>${body}</automaton></structure>`;
+const q = '<state id="0" name="q0"><x>0</x><y>0</y><initial/></state>';
+
+describe('JFLAP exchange safety', () => {
+  it('exports independent integer identities with consistent endpoints', () => {
+    const xml = serializeJFF({ ...graph, states: [...graph.states, { ...state, id: '0', isInitial: false }] });
+    expect(XMLValidator.validate(xml)).toBe(true);
+    const doc = new XMLParser({ ignoreAttributes: false, parseAttributeValue: false }).parse(xml);
+    const ids = doc.structure.automaton.state.map((s: Record<string, string>) => s['@_id']);
+    expect(new Set(ids).size).toBe(3);
+    expect(ids.every((id: string) => /^(0|[1-9]\d*)$/.test(id))).toBe(true);
+    expect(String(doc.structure.automaton.transition.from)).toBe(ids[0]);
+    expect(String(doc.structure.automaton.transition.to)).toBe(ids[1]);
+    expect(graph.states[0]?.id).toBe('s0');
+  });
+
+  it.each(['fa', 'pda', 'turing'] as const)('escapes every semantic field for %s', (kind) => {
+    const value = ' <&>"\'Ω ';
+    const edge = { ...graph.transitions[0]!, read: value, pop: value, push: value, write: value, move: 'S' as const };
+    const automaton = { ...graph, kind, tapes: 1, transitions: [edge] } as AnyAutomaton;
+    const xml = serializeJFF(automaton);
+    expect(XMLValidator.validate(xml)).toBe(true);
+    const parsed = parseJFF(xml).automaton.transitions[0]!;
+    expect(parsed.read).toBe(value);
+    if ('pop' in parsed) { expect(parsed.pop).toBe(value); expect(parsed.push).toBe(value); }
+    if ('write' in parsed) expect(parsed.write).toBe(value);
+  });
+
+  it('preserves literal whitespace separately from epsilon', () => {
+    const parsed = parseJFF(wrap(q + '<transition><from>0</from><to>0</to><read> </read></transition>'));
+    expect(parsed.automaton.transitions[0]?.read).toBe(' ');
+    expect(parseJFF(serializeJFF(parsed.automaton)).automaton.transitions[0]?.read).toBe(' ');
+  });
+
+  it('preserves whitespace even in state-name attributes', () => {
+    const named = { ...graph, states: graph.states.map((s) => ({ ...s, name: 'a\tb\nc\rd' })) };
+    expect(parseJFF(serializeJFF(named)).automaton.states[0]?.name).toBe('a\tb\nc\rd');
+  });
+
+  it('decodes numeric references once and refuses invalid entities', () => {
+    const body = (read: string) => wrap(q + `<transition><from>0</from><to>0</to><read>${read}</read></transition>`);
+    expect(parseJFF(body('&#x1F600;&amp;lt;')).automaton.transitions[0]?.read).toBe('😀&lt;');
+    expect(() => parseJFF(body('&#0;'))).toThrow();
+    expect(() => parseJFF(body('&unknown;'))).toThrow();
+  });
+
+  it('preserves notes, labels and transition control points', () => {
+    const parsed = parseJFF(wrap(q.replace('<initial/>', '<initial/><label> label </label>') + '<note><text>proof &amp; explanation</text><x>-10</x><y>5.5</y></note><transition><from>0</from><to>0</to><read/><controlx>22</controlx><controly>-30</controly></transition>')).automaton;
+    const next = parseJFF(serializeJFF(parsed)).automaton;
+    expect(next.meta?.notes).toEqual([{ text: 'proof & explanation', x: -10, y: 5.5 }]);
+    expect(next.states[0]?.label).toBe(' label ');
+    expect(next.transitions[0]).toMatchObject({ controlX: 22, controlY: -30 });
+  });
+
+  it.each([
+    '<structure><type>fa</type><automaton>',
+    wrap(q + q),
+    wrap(q.replace('<x>0</x>', '<x>12abc</x>')),
+    wrap(q + '<transition><from>0</from><to>99</to><read>a</read></transition>'),
+    wrap('<block id="0"/>', 'turing'),
+    wrap(q, 'turing', '<tapes>2</tapes>'),
+    wrap(q + '<transition><from>0</from><to>0</to><read/><write/><move>UP</move></transition>', 'turing'),
+    wrap(q + '<unknown>unpreservable</unknown>'),
+    '<!DOCTYPE structure [<!ENTITY x "expansion">]>' + wrap(q),
+  ])('rejects malformed or unsupported documents without degrading them', (xml) => {
+    expect(() => parseJFF(xml)).toThrow();
+  });
+
+  it('reads tape-one attributes but refuses additional tape fields', () => {
+    const edge = '<transition><from>0</from><to>0</to><read tape="1">a</read><write tape="1"/><move tape="1">S</move></transition>';
+    expect(parseJFF(wrap(q + edge, 'turing')).automaton.transitions[0]).toMatchObject({ read: 'a', write: '', move: 'S' });
+    expect(() => parseJFF(wrap(q + edge.replace('<read tape="1">a</read>', '<read tape="1">a</read><read tape="2">b</read>'), 'turing'))).toThrow();
+  });
+
+  it('refuses corrupt graphs and forbidden characters on export', () => {
+    expect(() => serializeJFF({ ...graph, states: [state, state] })).toThrow();
+    expect(() => serializeJFF({ ...graph, transitions: [{ ...graph.transitions[0]!, read: '\u0000' }] })).toThrow('forbidden');
+  });
+});
diff --git a/packages/jff/src/parser.ts b/packages/jff/src/parser.ts
index 2ab4fbf..9cd999c 100644
--- a/packages/jff/src/parser.ts
+++ b/packages/jff/src/parser.ts
@@ -1,11 +1,12 @@
-import type { AnyAutomaton, AutomatonKind, FiniteAutomaton, PushdownAutomaton, TuringMachine } from '@jauto/core';
-import { XMLParser } from 'fast-xml-parser';
-import { TAG } from './constants';
+import type { AnyAutomaton } from '@jauto/core';
+import { validateStructure } from '@jauto/core';
+import { XMLParser, XMLValidator } from 'fast-xml-parser';
 import { JFFParseError, JFFValidationWarning } from './errors';
 import { parseStates } from './parsers/states';
 import { parseFATransitions } from './parsers/fa';
 import { parsePDATransitions } from './parsers/pda';
 import { parseTMTransitions } from './parsers/tm';
+import { checkKeys, xmlElements, xmlNode, xmlNumber, xmlText, xmlEntityDecoder } from './xml';
 
 export interface ParseResult {
   automaton: AnyAutomaton;
@@ -14,64 +15,55 @@ export interface ParseResult {
 
 const xmlParser = new XMLParser({
   ignoreAttributes: false,
-  allowBooleanAttributes: true,
   parseTagValue: false,
-  trimValues: true,
-  isArray: (name) => name === TAG.STATE || name === TAG.TRANSITION,
+  parseAttributeValue: false,
+  trimValues: false,
+  entityDecoder: xmlEntityDecoder,
+  isArray: (name) => ['state', 'transition', 'note'].includes(name),
 });
 
 export function parseJFF(xml: string): ParseResult {
-  const warnings: JFFValidationWarning[] = [];
-
-  let parsed: Record<string, unknown>;
-  try {
-    parsed = xmlParser.parse(xml) as Record<string, unknown>;
-  } catch (e) {
-    throw new JFFParseError(`Invalid XML: ${e instanceof Error ? e.message : String(e)}`);
-  }
-
-  const structure = parsed[TAG.STRUCTURE] as Record<string, unknown> | undefined;
-  if (!structure) {
-    throw new JFFParseError('Missing <structure> root element');
+  if (xml.length > 5_000_000) throw new JFFParseError('Document exceeds the 5 MB import limit');
+  if (/<!DOCTYPE|<!ENTITY/i.test(xml)) throw new JFFParseError('DTD and custom XML entities are not supported');
+  const valid = XMLValidator.validate(xml);
+  if (valid !== true) throw new JFFParseError(`Invalid XML: ${valid.err.msg}`);
+  const parsed = xmlNode(xmlParser.parse(xml), 'document');
+  checkKeys(parsed, ['?xml', 'structure'], 'document');
+  if (!('structure' in parsed)) throw new JFFParseError('Missing <structure> root element');
+  const structure = xmlNode(parsed.structure, 'structure');
+  const kind = xmlText(structure.type, 'type').trim();
+  if (!kind) throw new JFFParseError('Missing <type> element');
+  if (kind !== 'fa' && kind !== 'pda' && kind !== 'turing') {
+    throw new JFFParseError(`Unsupported automaton type: "${kind}"`);
   }
-
-  const typeStr = String(structure[TAG.TYPE] ?? '').trim();
-  if (!typeStr) {
-    throw new JFFParseError('Missing <type> element');
+  checkKeys(structure, ['type', 'tapes', 'automaton', 'state', 'transition', 'note'], 'structure');
+  if ('automaton' in structure && ['state', 'transition', 'note'].some((key) => key in structure)) {
+    throw new JFFParseError('Mixed nested and legacy automaton structures are not supported');
   }
-
-  const kind = typeStr as AutomatonKind;
-  if (kind !== 'fa' && kind !== 'pda' && kind !== 'turing') {
-    throw new JFFParseError(`Unsupported automaton type: "${typeStr}"`);
+  const node = 'automaton' in structure ? xmlNode(structure.automaton, 'automaton') : structure;
+  checkKeys(node, node === structure ? ['type', 'tapes', 'state', 'transition', 'note'] : ['tapes', 'state', 'transition', 'note'], 'automaton');
+  if (kind !== 'turing' && ('tapes' in structure || 'tapes' in node)) {
+    throw new JFFParseError('Tape declarations are only supported for Turing machines');
   }
-
-  const automatonNode = (structure[TAG.AUTOMATON] ?? structure) as Record<string, unknown>;
-  const states = parseStates(automatonNode);
-
-  if (states.filter((s) => s.isInitial).length === 0) {
-    warnings.push(new JFFValidationWarning('No initial state found'));
+  const tapes = xmlNumber(structure.tapes ?? node.tapes, 'tapes', 1);
+  if (tapes !== 1 || xmlNumber(node.tapes, 'tapes', 1) !== 1) {
+    throw new JFFParseError('Only single-tape documents are currently supported');
   }
-
+  const states = parseStates(node);
+  const notes = xmlElements(node.note, 'note').map((note) => {
+    checkKeys(note, ['text', 'x', 'y'], 'note');
+    return { text: xmlText(note.text, 'text'), x: xmlNumber(note.x, 'x'), y: xmlNumber(note.y, 'y') };
+  });
+  const base = { states, ...(notes.length ? { meta: { notes } } : {}) };
+  let automaton: AnyAutomaton;
   switch (kind) {
-    case 'fa': {
-      const transitions = parseFATransitions(automatonNode);
-      const automaton: FiniteAutomaton = { kind: 'fa', states, transitions };
-      return { automaton, warnings };
-    }
-    case 'pda': {
-      const transitions = parsePDATransitions(automatonNode);
-      const automaton: PushdownAutomaton = { kind: 'pda', states, transitions };
-      return { automaton, warnings };
-    }
-    case 'turing': {
-      const transitions = parseTMTransitions(automatonNode);
-      const tapesRaw = structure[TAG.TAPES] ?? automatonNode[TAG.TAPES];
-      const tapes = tapesRaw ? parseInt(String(tapesRaw), 10) : 1;
-      if (tapes > 1) {
-        warnings.push(new JFFValidationWarning(`Multi-tape TM not supported. Only the first tape's transitions will be used.`));
-      }
-      const automaton: TuringMachine = { kind: 'turing', states, transitions, tapes };
-      return { automaton, warnings };
-    }
+    case 'fa': automaton = { ...base, kind, transitions: parseFATransitions(node) }; break;
+    case 'pda': automaton = { ...base, kind, transitions: parsePDATransitions(node) }; break;
+    case 'turing': automaton = { ...base, kind, tapes, transitions: parseTMTransitions(node) }; break;
   }
+  const errors = validateStructure(automaton);
+  if (errors.length) throw new JFFParseError(errors.map((error) => error.message).join('; '));
+  const warnings: JFFValidationWarning[] = [];
+  if (!states.some((state) => state.isInitial)) warnings.push(new JFFValidationWarning('No initial state found; set one before simulation'));
+  return { automaton, warnings };
 }
diff --git a/packages/jff/src/parsers/fa.ts b/packages/jff/src/parsers/fa.ts
index 5bf6a8d..cd31fe3 100644
--- a/packages/jff/src/parsers/fa.ts
+++ b/packages/jff/src/parsers/fa.ts
@@ -1,5 +1,6 @@
 import type { FATransition } from '@jauto/core';
 import { TAG } from '../constants';
+import { checkKeys, xmlElements, xmlText, parseLayout } from '../xml';
 
 class FATransitionIdGenerator {
   private counter = 0;
@@ -19,13 +20,14 @@ export function parseFATransitions(automatonNode: Record<string, unknown>): FATr
   const raw = automatonNode[TAG.TRANSITION];
   if (!raw) return [];
 
-  const nodes = Array.isArray(raw) ? raw : [raw];
+  const nodes = xmlElements(raw, 'transition');
   return nodes.map((node: Record<string, unknown>) => {
-    const from = String(node[TAG.FROM] ?? '');
-    const to = String(node[TAG.TO] ?? '');
-    const read = node[TAG.READ] != null ? String(node[TAG.READ]) : '';
+    checkKeys(node, ['from', 'to', 'read', 'controlx', 'controly'], 'FA transition');
+    const from = xmlText(node[TAG.FROM], TAG.FROM).trim();
+    const to = xmlText(node[TAG.TO], TAG.TO).trim();
+    const read = xmlText(node[TAG.READ], TAG.READ);
 
-    return { id: globalGenerator.nextId(), from, to, read };
+    return { id: globalGenerator.nextId(), from, to, read, ...parseLayout(node) };
   });
 }
 
@@ -35,4 +37,4 @@ export function resetFACounter(): void {
 
 export function createIdGenerator() {
   return new FATransitionIdGenerator();
-}
\ No newline at end of file
+}
diff --git a/packages/jff/src/parsers/pda.ts b/packages/jff/src/parsers/pda.ts
index b52056b..e3bb966 100644
--- a/packages/jff/src/parsers/pda.ts
+++ b/packages/jff/src/parsers/pda.ts
@@ -1,5 +1,6 @@
 import type { PDATransition } from '@jauto/core';
 import { TAG } from '../constants';
+import { checkKeys, xmlElements, xmlText, parseLayout } from '../xml';
 
 class PDATransitionIdGenerator {
   private counter = 0;
@@ -19,15 +20,16 @@ export function parsePDATransitions(automatonNode: Record<string, unknown>): PDA
   const raw = automatonNode[TAG.TRANSITION];
   if (!raw) return [];
 
-  const nodes = Array.isArray(raw) ? raw : [raw];
+  const nodes = xmlElements(raw, 'transition');
   return nodes.map((node: Record<string, unknown>) => {
-    const from = String(node[TAG.FROM] ?? '');
-    const to = String(node[TAG.TO] ?? '');
-    const read = node[TAG.READ] != null ? String(node[TAG.READ]) : '';
-    const pop = node[TAG.POP] != null ? String(node[TAG.POP]) : '';
-    const push = node[TAG.PUSH] != null ? String(node[TAG.PUSH]) : '';
-
-    return { id: globalGenerator.nextId(), from, to, read, pop, push };
+    checkKeys(node, ['from', 'to', 'read', 'pop', 'push', 'controlx', 'controly'], 'PDA transition');
+    const from = xmlText(node[TAG.FROM], TAG.FROM).trim();
+    const to = xmlText(node[TAG.TO], TAG.TO).trim();
+    const read = xmlText(node[TAG.READ], TAG.READ);
+    const pop = xmlText(node[TAG.POP], TAG.POP);
+    const push = xmlText(node[TAG.PUSH], TAG.PUSH);
+
+    return { id: globalGenerator.nextId(), from, to, read, pop, push, ...parseLayout(node) };
   });
 }
 
@@ -37,4 +39,4 @@ export function resetPDACounter(): void {
 
 export function createIdGenerator() {
   return new PDATransitionIdGenerator();
-}
\ No newline at end of file
+}
diff --git a/packages/jff/src/parsers/states.ts b/packages/jff/src/parsers/states.ts
index 8930586..84e0cb2 100644
--- a/packages/jff/src/parsers/states.ts
+++ b/packages/jff/src/parsers/states.ts
@@ -1,22 +1,24 @@
 import type { AutomatonState } from '@jauto/core';
 import { TAG, ATTR } from '../constants';
 import { JFFParseError } from '../errors';
+import { xmlElements, xmlText, xmlNumber, checkKeys } from '../xml';
 
 export function parseStates(automatonNode: Record<string, unknown>): AutomatonState[] {
   const raw = automatonNode[TAG.STATE];
   if (!raw) return [];
 
-  const stateNodes = Array.isArray(raw) ? raw : [raw];
+  const stateNodes = xmlElements(raw, 'state');
   return stateNodes.map((node: Record<string, unknown>) => {
-    const id = String(node[ATTR.ID] ?? '');
+    checkKeys(node, [ATTR.ID, ATTR.NAME, TAG.X, TAG.Y, TAG.INITIAL, TAG.FINAL, TAG.LABEL], 'state');
+    const id = xmlText(node[ATTR.ID], 'state id').trim();
     if (!id) throw new JFFParseError('State missing id attribute');
 
-    const name = String(node[ATTR.NAME] ?? `q${id}`);
-    const x = parseFloat(String(node[TAG.X] ?? '0'));
-    const y = parseFloat(String(node[TAG.Y] ?? '0'));
+    const name = xmlText(node[ATTR.NAME], 'state name', `q${id}`);
+    const x = xmlNumber(node[TAG.X], TAG.X);
+    const y = xmlNumber(node[TAG.Y], TAG.Y);
     const isInitial = TAG.INITIAL in node;
     const isFinal = TAG.FINAL in node;
-    const label = node[TAG.LABEL] != null ? String(node[TAG.LABEL]) : undefined;
+    const label = node[TAG.LABEL] != null ? xmlText(node[TAG.LABEL], TAG.LABEL) : undefined;
 
     return { id, name, x, y, isInitial, isFinal, label };
   });
diff --git a/packages/jff/src/parsers/tm.ts b/packages/jff/src/parsers/tm.ts
index d830568..455490a 100644
--- a/packages/jff/src/parsers/tm.ts
+++ b/packages/jff/src/parsers/tm.ts
@@ -1,5 +1,7 @@
 import type { TMTransition } from '@jauto/core';
 import { TAG } from '../constants';
+import { checkKeys, xmlElements, xmlText, xmlNode, parseLayout } from '../xml';
+import { JFFParseError } from '../errors';
 
 class TMTransitionIdGenerator {
   private counter = 0;
@@ -16,24 +18,37 @@ class TMTransitionIdGenerator {
 const globalGenerator = new TMTransitionIdGenerator();
 
 function parseMove(value: unknown): 'L' | 'R' | 'S' {
-  const s = String(value ?? 'R').toUpperCase();
+  const s = tapeText(value, TAG.MOVE).trim();
   if (s === 'L' || s === 'R' || s === 'S') return s;
-  return 'R';
+  throw new JFFParseError('TM movement must be L, R or S');
+}
+
+function tapeText(value: unknown, tag: string): string {
+  if (value && typeof value === 'object') {
+    const node = xmlNode(value, tag);
+    checkKeys(node, ['@_tape', '#text'], tag);
+    if (xmlText(node['@_tape'], 'tape', '1').trim() !== '1') {
+      throw new JFFParseError('Multi-tape transitions are not supported');
+    }
+    return xmlText(node['#text'], tag);
+  }
+  return xmlText(value, tag);
 }
 
 export function parseTMTransitions(automatonNode: Record<string, unknown>): TMTransition[] {
   const raw = automatonNode[TAG.TRANSITION];
   if (!raw) return [];
 
-  const nodes = Array.isArray(raw) ? raw : [raw];
+  const nodes = xmlElements(raw, 'transition');
   return nodes.map((node: Record<string, unknown>) => {
-    const from = String(node[TAG.FROM] ?? '');
-    const to = String(node[TAG.TO] ?? '');
-    const read = node[TAG.READ] != null ? String(node[TAG.READ]) : '';
-    const write = node[TAG.WRITE] != null ? String(node[TAG.WRITE]) : '';
+    checkKeys(node, ['from', 'to', 'read', 'write', 'move', 'controlx', 'controly'], 'TM transition');
+    const from = xmlText(node[TAG.FROM], TAG.FROM).trim();
+    const to = xmlText(node[TAG.TO], TAG.TO).trim();
+    const read = tapeText(node[TAG.READ], TAG.READ);
+    const write = tapeText(node[TAG.WRITE], TAG.WRITE);
     const move = parseMove(node[TAG.MOVE]);
 
-    return { id: globalGenerator.nextId(), from, to, read, write, move };
+    return { id: globalGenerator.nextId(), from, to, read, write, move, ...parseLayout(node) };
   });
 }
 
@@ -43,4 +58,4 @@ export function resetTMCounter(): void {
 
 export function createIdGenerator() {
   return new TMTransitionIdGenerator();
-}
\ No newline at end of file
+}
diff --git a/packages/jff/src/serializer.ts b/packages/jff/src/serializer.ts
index e3bd0f7..f2ac2fe 100644
--- a/packages/jff/src/serializer.ts
+++ b/packages/jff/src/serializer.ts
@@ -1,33 +1,64 @@
-import type { AnyAutomaton, FiniteAutomaton, PushdownAutomaton, TuringMachine } from '@jauto/core';
+import type { AnyAutomaton, AnyTransition } from '@jauto/core';
+import { validateStructure } from '@jauto/core';
+import { JFFSerializeError } from './errors';
+import { escapeXml } from './xml';
 import { serializeStates } from './serializers/states';
 import { serializeFATransitions } from './serializers/fa';
 import { serializePDATransitions } from './serializers/pda';
 import { serializeTMTransitions } from './serializers/tm';
 
 export function serializeJFF(automaton: AnyAutomaton): string {
+  const errors = validateStructure(automaton);
+  if (errors.length) throw new JFFSerializeError(errors.map((error) => error.message).join('; '));
+  if (automaton.kind === 'turing' && automaton.tapes !== 1) {
+    throw new JFFSerializeError('Only single-tape documents are currently supported');
+  }
+  const ids = new Map<string, string>();
+  const used = new Set<string>();
+  for (const state of automaton.states) {
+    if (/^(0|[1-9]\d*)$/.test(state.id) && Number(state.id) <= 2147483647) {
+      ids.set(state.id, state.id);
+      used.add(state.id);
+    }
+  }
+  let next = 0;
+  for (const state of automaton.states) {
+    if (ids.has(state.id)) continue;
+    while (used.has(String(next))) next++;
+    ids.set(state.id, String(next));
+    used.add(String(next++));
+  }
+  function mapTransitions<T extends AnyTransition>(transitions: readonly T[]): T[] {
+    return transitions.map((t) => ({ ...t, from: ids.get(t.from)!, to: ids.get(t.to)! }));
+  }
   const lines: string[] = [];
   lines.push('<?xml version="1.0" encoding="UTF-8" standalone="no"?>');
   lines.push('<!--Created with Jauto.-->');
   lines.push('<structure>');
   lines.push(`\t<type>${automaton.kind}</type>`);
+  if (automaton.kind === 'turing') lines.push('\t<tapes>1</tapes>');
   lines.push('\t<automaton>');
 
-  const statesXml = serializeStates(automaton.states);
+  const statesXml = serializeStates(automaton.states.map((s) => ({ ...s, id: ids.get(s.id)! })));
   if (statesXml) lines.push(statesXml);
 
   let transitionsXml = '';
   switch (automaton.kind) {
     case 'fa':
-      transitionsXml = serializeFATransitions((automaton as FiniteAutomaton).transitions);
+      transitionsXml = serializeFATransitions(mapTransitions(automaton.transitions));
       break;
     case 'pda':
-      transitionsXml = serializePDATransitions((automaton as PushdownAutomaton).transitions);
+      transitionsXml = serializePDATransitions(mapTransitions(automaton.transitions));
       break;
     case 'turing':
-      transitionsXml = serializeTMTransitions((automaton as TuringMachine).transitions);
+      transitionsXml = serializeTMTransitions(mapTransitions(automaton.transitions));
       break;
   }
   if (transitionsXml) lines.push(transitionsXml);
+  for (const note of automaton.meta?.notes ?? []) {
+    if (!Number.isFinite(note.x) || !Number.isFinite(note.y)) throw new JFFSerializeError('Note coordinates must be finite');
+    lines.push(`\t\t<note><text>${escapeXml(note.text)}</text><x>${note.x}</x><y>${note.y}</y></note>`);
+  }
 
   lines.push('\t</automaton>');
   lines.push('</structure>');
diff --git a/packages/jff/src/serializers/fa.ts b/packages/jff/src/serializers/fa.ts
index ffb6f7a..acd45cd 100644
--- a/packages/jff/src/serializers/fa.ts
+++ b/packages/jff/src/serializers/fa.ts
@@ -1,12 +1,14 @@
 import type { FATransition } from '@jauto/core';
+import { escapeXml, serializeLayout } from '../xml';
 
 export function serializeFATransitions(transitions: readonly FATransition[]): string {
   return transitions
     .map((t) => {
       let inner = '';
-      inner += `\t\t\t<from>${t.from}</from>\n`;
-      inner += `\t\t\t<to>${t.to}</to>\n`;
-      inner += `\t\t\t<read>${t.read}</read>\n`;
+      inner += `\t\t\t<from>${escapeXml(t.from)}</from>\n`;
+      inner += `\t\t\t<to>${escapeXml(t.to)}</to>\n`;
+      inner += `\t\t\t<read>${escapeXml(t.read)}</read>\n`;
+      inner += serializeLayout(t);
       return `\t\t<transition>\n${inner}\t\t</transition>`;
     })
     .join('\n');
diff --git a/packages/jff/src/serializers/pda.ts b/packages/jff/src/serializers/pda.ts
index 2f4fa3e..588a464 100644
--- a/packages/jff/src/serializers/pda.ts
+++ b/packages/jff/src/serializers/pda.ts
@@ -1,14 +1,16 @@
 import type { PDATransition } from '@jauto/core';
+import { escapeXml, serializeLayout } from '../xml';
 
 export function serializePDATransitions(transitions: readonly PDATransition[]): string {
   return transitions
     .map((t) => {
       let inner = '';
-      inner += `\t\t\t<from>${t.from}</from>\n`;
-      inner += `\t\t\t<to>${t.to}</to>\n`;
-      inner += `\t\t\t<read>${t.read}</read>\n`;
-      inner += `\t\t\t<pop>${t.pop}</pop>\n`;
-      inner += `\t\t\t<push>${t.push}</push>\n`;
+      inner += `\t\t\t<from>${escapeXml(t.from)}</from>\n`;
+      inner += `\t\t\t<to>${escapeXml(t.to)}</to>\n`;
+      inner += `\t\t\t<read>${escapeXml(t.read)}</read>\n`;
+      inner += `\t\t\t<pop>${escapeXml(t.pop)}</pop>\n`;
+      inner += `\t\t\t<push>${escapeXml(t.push)}</push>\n`;
+      inner += serializeLayout(t);
       return `\t\t<transition>\n${inner}\t\t</transition>`;
     })
     .join('\n');
diff --git a/packages/jff/src/serializers/states.ts b/packages/jff/src/serializers/states.ts
index cce0b0e..86e3022 100644
--- a/packages/jff/src/serializers/states.ts
+++ b/packages/jff/src/serializers/states.ts
@@ -1,4 +1,5 @@
 import type { AutomatonState } from '@jauto/core';
+import { escapeXml } from '../xml';
 
 export function serializeStates(states: readonly AutomatonState[]): string {
   return states
@@ -14,12 +15,3 @@ export function serializeStates(states: readonly AutomatonState[]): string {
     })
     .join('\n');
 }
-
-function escapeXml(str: string): string {
-  return str
-    .replace(/&/g, '&amp;')
-    .replace(/</g, '&lt;')
-    .replace(/>/g, '&gt;')
-    .replace(/"/g, '&quot;')
-    .replace(/'/g, '&apos;');
-}
diff --git a/packages/jff/src/serializers/tm.ts b/packages/jff/src/serializers/tm.ts
index 28e05c1..6e8bdca 100644
--- a/packages/jff/src/serializers/tm.ts
+++ b/packages/jff/src/serializers/tm.ts
@@ -1,14 +1,16 @@
 import type { TMTransition } from '@jauto/core';
+import { escapeXml, serializeLayout } from '../xml';
 
 export function serializeTMTransitions(transitions: readonly TMTransition[]): string {
   return transitions
     .map((t) => {
       let inner = '';
-      inner += `\t\t\t<from>${t.from}</from>\n`;
-      inner += `\t\t\t<to>${t.to}</to>\n`;
-      inner += `\t\t\t<read>${t.read}</read>\n`;
-      inner += `\t\t\t<write>${t.write}</write>\n`;
-      inner += `\t\t\t<move>${t.move}</move>\n`;
+      inner += `\t\t\t<from>${escapeXml(t.from)}</from>\n`;
+      inner += `\t\t\t<to>${escapeXml(t.to)}</to>\n`;
+      inner += `\t\t\t<read>${escapeXml(t.read)}</read>\n`;
+      inner += `\t\t\t<write>${escapeXml(t.write)}</write>\n`;
+      inner += `\t\t\t<move>${escapeXml(t.move)}</move>\n`;
+      inner += serializeLayout(t);
       return `\t\t<transition>\n${inner}\t\t</transition>`;
     })
     .join('\n');
diff --git a/packages/jff/src/xml.ts b/packages/jff/src/xml.ts
new file mode 100644
index 0000000..4ca51cc
--- /dev/null
+++ b/packages/jff/src/xml.ts
@@ -0,0 +1,94 @@
+import type { TransitionLayout } from '@jauto/core';
+import { JFFParseError, JFFSerializeError } from './errors';
+
+function isXmlCharacter(point: number): boolean {
+  return point === 9 || point === 10 || point === 13 ||
+    (point >= 0x20 && point <= 0xd7ff) || (point >= 0xe000 && point <= 0xfffd) ||
+    (point >= 0x10000 && point <= 0x10ffff);
+}
+
+/** Decode XML's five named entities and numeric references exactly once. */
+export const xmlEntityDecoder = {
+  reset() {},
+  setExternalEntities() {},
+  addInputEntities() { throw new JFFParseError('Custom XML entities are not supported'); },
+  setXmlVersion(version: string | number) {
+    if (Number(version) !== 1) throw new JFFParseError('Only XML 1.0 is supported');
+  },
+  decode(text: string): string {
+    const names: Record<string, string> = { amp: '&', lt: '<', gt: '>', quot: '"', apos: "'" };
+    return text.replace(/&([^;]+);/g, (_match, entity: string) => {
+      if (Object.hasOwn(names, entity)) return names[entity]!;
+      const decimal = /^#\d+$/.test(entity);
+      const hex = /^#x[0-9a-f]+$/i.test(entity);
+      const point = decimal ? Number(entity.slice(1)) : hex ? parseInt(entity.slice(2), 16) : NaN;
+      if (!Number.isInteger(point) || !isXmlCharacter(point)) throw new JFFParseError(`Invalid XML entity: &${entity};`);
+      return String.fromCodePoint(point);
+    });
+  },
+};
+
+export function escapeXml(value: string): string {
+  for (const symbol of value) {
+    const point = symbol.codePointAt(0)!;
+    if (!isXmlCharacter(point)) {
+      throw new JFFSerializeError('Text contains a character forbidden by XML 1.0');
+    }
+  }
+  return value.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;')
+    .replace(/"/g, '&quot;').replace(/'/g, '&apos;')
+    .replace(/\r/g, '&#13;').replace(/\n/g, '&#10;').replace(/\t/g, '&#9;');
+}
+
+export function xmlNode(value: unknown, context: string): Record<string, unknown> {
+  if (value === undefined || (typeof value === 'string' && !value.trim())) return {};
+  if (!value || typeof value !== 'object' || Array.isArray(value)) {
+    throw new JFFParseError(`Expected a single <${context}> element`);
+  }
+  return value as Record<string, unknown>;
+}
+
+export function xmlText(value: unknown, context: string, fallback = ''): string {
+  if (value === undefined) return fallback;
+  if (typeof value !== 'string') throw new JFFParseError(`Unsupported or repeated <${context}> content`);
+  return value;
+}
+
+export function xmlNumber(value: unknown, context: string, fallback = 0): number {
+  if (value === undefined) return fallback;
+  const text = xmlText(value, context).trim();
+  const number = Number(text);
+  if (!text || !Number.isFinite(number)) throw new JFFParseError(`<${context}> must contain a finite number`);
+  return number;
+}
+
+export function checkKeys(node: Record<string, unknown>, allowed: readonly string[], context: string): void {
+  for (const key of Object.keys(node)) {
+    if (key === '#text' && typeof node[key] === 'string' && !(node[key] as string).trim()) continue;
+    if (!allowed.includes(key)) {
+      throw new JFFParseError(`Unsupported ${context} field "${key}"; opening it would discard data`);
+    }
+  }
+}
+
+export function xmlElements(value: unknown, context: string): Record<string, unknown>[] {
+  if (value === undefined) return [];
+  return (Array.isArray(value) ? value : [value]).map((entry) => xmlNode(entry, context));
+}
+
+export function parseLayout(node: Record<string, unknown>): TransitionLayout {
+  return {
+    ...(node.controlx === undefined ? {} : { controlX: xmlNumber(node.controlx, 'controlx') }),
+    ...(node.controly === undefined ? {} : { controlY: xmlNumber(node.controly, 'controly') }),
+  };
+}
+
+export function serializeLayout(layout: TransitionLayout): string {
+  let text = '';
+  for (const [tag, value] of [['controlx', layout.controlX], ['controly', layout.controlY]] as const) {
+    if (value === undefined) continue;
+    if (!Number.isFinite(value)) throw new JFFSerializeError('Transition control points must be finite');
+    text += `\t\t\t<${tag}>${value}</${tag}>\n`;
+  }
+  return text;
+}
diff --git a/packages/ui/__tests__/import-notices.test.ts b/packages/ui/__tests__/import-notices.test.ts
new file mode 100644
index 0000000..2921dfc
--- /dev/null
+++ b/packages/ui/__tests__/import-notices.test.ts
@@ -0,0 +1,19 @@
+import { describe, expect, it } from 'vitest';
+import { createPinia, setActivePinia } from 'pinia';
+import { mount } from '@vue/test-utils';
+import { createEmptyAutomaton } from '@jauto/core';
+import EditorView from '../src/components/EditorView.vue';
+import { useDocumentStore } from '../src/stores/document';
+
+describe('import notices', () => {
+  it('shows diagnostics to the user and clears them for a new document', () => {
+    setActivePinia(createPinia());
+    const doc = useDocumentStore();
+    doc.loadAutomaton(createEmptyAutomaton('fa'), 'draft.jff', [{ message: 'No initial state found' }]);
+    const wrapper = mount(EditorView, { global: { stubs: { Toolbar: true, AutomatonCanvas: true, InspectorPanel: true, SimulationControls: true } } });
+    expect(wrapper.get('[role="status"]').text()).toContain('No initial state found');
+    doc.newDocument('pda');
+    expect(doc.importWarnings).toEqual([]);
+    wrapper.unmount();
+  });
+});
diff --git a/packages/ui/src/components/EditorView.vue b/packages/ui/src/components/EditorView.vue
index 8e0891d..53ca76a 100644
--- a/packages/ui/src/components/EditorView.vue
+++ b/packages/ui/src/components/EditorView.vue
@@ -3,11 +3,18 @@ import AutomatonCanvas from './AutomatonCanvas.vue';
 import Toolbar from './Toolbar.vue';
 import InspectorPanel from './InspectorPanel.vue';
 import SimulationControls from './SimulationControls.vue';
+import { useDocumentStore } from '../stores/document';
+const docStore = useDocumentStore();
 </script>
 
 <template>
   <div class="editor-view">
     <Toolbar />
+    <div v-if="docStore.importWarnings.length" class="editor-view__notices" role="status">
+      <strong>Import notices</strong>
+      <ul><li v-for="(warning, index) in docStore.importWarnings" :key="index">{{ warning.message }}</li></ul>
+      <button type="button" @click="docStore.importWarnings = []">Dismiss notices</button>
+    </div>
     <div class="editor-view__body">
       <div class="editor-view__center">
         <div class="editor-view__canvas">
@@ -21,6 +28,7 @@ import SimulationControls from './SimulationControls.vue';
 </template>
 
 <style scoped>
+.editor-view__notices { padding: 8px 16px; border-bottom: 1px solid var(--color-border); }
 .editor-view {
   display: flex;
   flex-direction: column;
diff --git a/packages/ui/src/stores/document.ts b/packages/ui/src/stores/document.ts
index e2e2e59..f776810 100644
--- a/packages/ui/src/stores/document.ts
+++ b/packages/ui/src/stores/document.ts
@@ -22,6 +22,7 @@ export const useDocumentStore = defineStore('document', () => {
   const automaton = ref<AnyAutomaton>(createEmptyAutomaton('fa'));
   const fileName = ref<string | null>(null);
   const isDirty = ref(false);
+  const importWarnings = ref<readonly { message: string }[]>([]);
   const selectedElement = ref<SelectedElement>(null);
   const inspectorFocusTarget = ref<InspectorFocusTarget | null>(null);
   const activeTool = ref<EditorTool>('select');
@@ -35,7 +36,8 @@ export const useDocumentStore = defineStore('document', () => {
     isDirty.value = true;
   }
 
-  function loadAutomaton(newAutomaton: AnyAutomaton, name: string | null = null) {
+  function loadAutomaton(newAutomaton: AnyAutomaton, name: string | null = null, warnings: readonly { message: string }[] = []) {
+    importWarnings.value = warnings;
     automaton.value = newAutomaton;
     fileName.value = name;
     isDirty.value = false;
@@ -44,6 +46,7 @@ export const useDocumentStore = defineStore('document', () => {
   }
 
   function newDocument(kind: AutomatonKind) {
+    importWarnings.value = [];
     automaton.value = createEmptyAutomaton(kind);
     fileName.value = null;
     isDirty.value = false;
@@ -93,6 +96,7 @@ export const useDocumentStore = defineStore('document', () => {
     automaton,
     fileName,
     isDirty,
+    importWarnings,
     selectedElement,
     inspectorFocusTarget,
     activeTool,

From 2f0e1f1667b886ee9aae65b42b44c7ae82dcaeca Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 10:42:07 -0300
Subject: [PATCH 06/43] fix(ui): protect text editing from graph shortcuts

---
 ACTION_PLAN.md                                |  3 ++-
 apps/web/src/useKeyboardShortcuts.ts          |  3 ++-
 packages/ui/__tests__/keyboard.test.ts        | 26 +++++++++++++++++++
 .../ui/src/components/AutomatonCanvas.vue     |  9 ++-----
 packages/ui/src/index.ts                      |  1 +
 packages/ui/src/keyboard.ts                   |  7 +++++
 6 files changed, 40 insertions(+), 9 deletions(-)
 create mode 100644 packages/ui/__tests__/keyboard.test.ts
 create mode 100644 packages/ui/src/keyboard.ts

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index 1b5b6b4..6d79d23 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -104,7 +104,7 @@ No source or configuration files were changed during the audit. Native installer
 **Priority:** P1  
 **Dependencies:** Can proceed alongside steps 2 and 4
 
-- [ ] Centralize keyboard handling with editable-target, focus, modifier, and IME guards.
+- [x] Centralize keyboard handling with editable-target, focus, modifier, and IME guards.
 - [ ] Add a shared document lifecycle for New/Open/Home/Close with Save/Discard/Cancel behavior.
 - [ ] Add recoverable drafts, reload/close protection, and a Resume path from Home.
 - [ ] Track document identity, current revision, and saved revision rather than a manually toggled dirty flag.
@@ -245,5 +245,6 @@ Before calling the automata milestone dependable:
 - Test and CI foundation: enabled Vue linting, added UI/history and file-service tests, retained the official PDA fixture with provenance, replaced obsolete Vitest workspace configuration, and added PR/release checks. Validation: 86 tests passed; lint, type checking and both frontend builds passed; Turbo task graph verified. Full simulator conformance and installed-platform checks remain outstanding.
 - Document identity: made machine kinds discriminated, allocated IDs against the open document, rejected duplicate additions and introduced structural diagnostics for damaged graphs. Validation: 40 core tests passed; all workspace type checks and lint passed. Structural diagnostics will be connected to file opening/export in the next feature.
 - Safe JFF exchange: added strict XML/document validation, loss-preventing rejection for unsupported constructs, numeric state-ID mapping, semantic XML entity/whitespace preservation, notes and transition control-point round trips, and visible import notices. Validation: 39 JFF tests and 3 UI tests passed; workspace type checks and lint passed. Independent XML checks cover generated IDs and references. Reopening generated files in the JFLAP application remains an external conformance gate.
+- Keyboard safety: centralized editable-target, default-prevention and IME-composition guards for canvas commands and application undo/redo shortcuts. Validation: 8 UI tests passed; workspace type checks and lint passed.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/apps/web/src/useKeyboardShortcuts.ts b/apps/web/src/useKeyboardShortcuts.ts
index 6f3afa9..d79c119 100644
--- a/apps/web/src/useKeyboardShortcuts.ts
+++ b/apps/web/src/useKeyboardShortcuts.ts
@@ -1,10 +1,11 @@
 import { onMounted, onUnmounted } from 'vue';
-import { useHistoryStore } from '@jauto/ui';
+import { shouldHandleGraphKey, useHistoryStore } from '@jauto/ui';
 
 export function useKeyboardShortcuts() {
   const historyStore = useHistoryStore();
 
   function handler(e: KeyboardEvent) {
+    if (!shouldHandleGraphKey(e)) return;
     const ctrl = e.ctrlKey || e.metaKey;
 
     if (ctrl && e.key === 'z' && !e.shiftKey) {
diff --git a/packages/ui/__tests__/keyboard.test.ts b/packages/ui/__tests__/keyboard.test.ts
new file mode 100644
index 0000000..8563f5e
--- /dev/null
+++ b/packages/ui/__tests__/keyboard.test.ts
@@ -0,0 +1,26 @@
+import { describe, expect, it } from 'vitest';
+import { isEditableKeyTarget, shouldHandleGraphKey } from '../src/keyboard';
+
+describe('keyboard shortcut scope', () => {
+  it.each(['input', 'textarea', 'select', '[contenteditable="true"]'])('protects editing in %s', (selector) => {
+    document.body.innerHTML = selector.startsWith('[') ? `<div ${selector.slice(1, -1)}><span id="target"></span></div>` : `<${selector}><option></option></${selector}>`;
+    const target = document.querySelector('#target') ?? document.querySelector(selector)!;
+    expect(isEditableKeyTarget(target)).toBe(true);
+    expect(shouldHandleGraphKey(new KeyboardEvent('keydown', { bubbles: true }))).toBe(true);
+    let handled = true;
+    target.addEventListener('keydown', (event) => { handled = shouldHandleGraphKey(event); });
+    target.dispatchEvent(new KeyboardEvent('keydown', { key: 'Backspace', bubbles: true }));
+    expect(handled).toBe(false);
+  });
+
+  it('allows graph keys from the canvas and refuses prevented events', () => {
+    const canvas = document.createElement('canvas');
+    let allowed = false;
+    canvas.addEventListener('keydown', (event) => { allowed = shouldHandleGraphKey(event); });
+    canvas.dispatchEvent(new KeyboardEvent('keydown', { key: 'Delete', bubbles: true }));
+    expect(allowed).toBe(true);
+    const prevented = new KeyboardEvent('keydown', { cancelable: true });
+    prevented.preventDefault();
+    expect(shouldHandleGraphKey(prevented)).toBe(false);
+  });
+});
diff --git a/packages/ui/src/components/AutomatonCanvas.vue b/packages/ui/src/components/AutomatonCanvas.vue
index fdcbf5b..5285da3 100644
--- a/packages/ui/src/components/AutomatonCanvas.vue
+++ b/packages/ui/src/components/AutomatonCanvas.vue
@@ -5,6 +5,7 @@ import { useSimulationStore } from '../stores/simulation';
 import { useCanvasRenderer, readCssVar } from '../composables/useCanvasRenderer';
 import { usePanZoom } from '../composables/usePanZoom';
 import { useInteractionManager } from '../composables/useInteractionManager';
+import { isEditableKeyTarget, shouldHandleGraphKey } from '../keyboard';
 
 const canvasRef = ref<HTMLCanvasElement | null>(null);
 const spaceHeldForPan = ref(false);
@@ -71,12 +72,6 @@ function getCanvasRect(): DOMRect {
   return canvasRef.value!.getBoundingClientRect();
 }
 
-function isEditableKeyTarget(elt: EventTarget | null) {
-  if (!elt || !(elt instanceof Element)) return false;
-  if (elt.closest('input, textarea, [contenteditable="true"]')) return true;
-  return false;
-}
-
 function handleMouseDown(e: MouseEvent) {
   const pointerType = (e as PointerEvent).pointerType;
   if (spaceHeldForPan.value && e.button === 0) {
@@ -105,7 +100,7 @@ function handleKeyDown(e: KeyboardEvent) {
     e.preventDefault();
     spaceHeldForPan.value = true;
   }
-  interaction.onKeyDown(e);
+  if (shouldHandleGraphKey(e)) interaction.onKeyDown(e);
   updateModifier(e);
 }
 
diff --git a/packages/ui/src/index.ts b/packages/ui/src/index.ts
index da367e3..d55c872 100644
--- a/packages/ui/src/index.ts
+++ b/packages/ui/src/index.ts
@@ -17,3 +17,4 @@ export type { Theme } from './stores/theme';
 export { saveDocumentKey, type SaveDocumentFn } from './injectionKeys';
 
 export { STATE_RADIUS, TRANSITION_HIT_TOLERANCE, SELF_LOOP_RADIUS, SELF_LOOP_OFFSET } from './constants';
+export { isEditableKeyTarget, shouldHandleGraphKey } from './keyboard';
diff --git a/packages/ui/src/keyboard.ts b/packages/ui/src/keyboard.ts
new file mode 100644
index 0000000..ef2abd9
--- /dev/null
+++ b/packages/ui/src/keyboard.ts
@@ -0,0 +1,7 @@
+export function isEditableKeyTarget(target: EventTarget | null): boolean {
+  return target instanceof Element && Boolean(target.closest('input, textarea, select, [contenteditable]:not([contenteditable="false"])'));
+}
+
+export function shouldHandleGraphKey(event: KeyboardEvent): boolean {
+  return !event.defaultPrevented && !event.isComposing && !isEditableKeyTarget(event.target);
+}

From 4226d785ce87fa842d5d81b4a2c07783f02aecfc Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 10:43:33 -0300
Subject: [PATCH 07/43] fix(ui): run nondeterministic finite automata correctly

---
 ACTION_PLAN.md                           |  3 +-
 packages/ui/__tests__/simulation.test.ts | 60 ++++++++++++++++++++++++
 packages/ui/src/stores/simulation.ts     | 11 +++--
 3 files changed, 69 insertions(+), 5 deletions(-)
 create mode 100644 packages/ui/__tests__/simulation.test.ts

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index 6d79d23..bf5eba0 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -122,7 +122,7 @@ No source or configuration files were changed during the audit. Native installer
 **Priority:** P1  
 **Dependencies:** Compatibility semantics from step 1; coordinate model changes with step 2
 
-- [ ] Connect NFA execution and epsilon closure to the editor.
+- [x] Connect NFA execution and epsilon closure to the editor.
 - [ ] Support the declared FA/PDA string-transition semantics, including PDA stack-string matching.
 - [ ] Initialize PDA stacks consistently with JFLAP and correct initial-configuration acceptance.
 - [ ] Implement fair nondeterministic exploration and configuration deduplication where appropriate.
@@ -246,5 +246,6 @@ Before calling the automata milestone dependable:
 - Document identity: made machine kinds discriminated, allocated IDs against the open document, rejected duplicate additions and introduced structural diagnostics for damaged graphs. Validation: 40 core tests passed; all workspace type checks and lint passed. Structural diagnostics will be connected to file opening/export in the next feature.
 - Safe JFF exchange: added strict XML/document validation, loss-preventing rejection for unsupported constructs, numeric state-ID mapping, semantic XML entity/whitespace preservation, notes and transition control-point round trips, and visible import notices. Validation: 39 JFF tests and 3 UI tests passed; workspace type checks and lint passed. Independent XML checks cover generated IDs and references. Reopening generated files in the JFLAP application remains an external conformance gate.
 - Keyboard safety: centralized editable-target, default-prevention and IME-composition guards for canvas commands and application undo/redo shortcuts. Validation: 8 UI tests passed; workspace type checks and lint passed.
+- NFA editor execution: routed nondeterministic finite automata to the NFA runner, exposed epsilon-closure branch states in the canvas highlights, and derived the initial status from the runner so empty-input acceptance is immediate. Validation: 11 UI tests passed; workspace type checks and lint passed.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/packages/ui/__tests__/simulation.test.ts b/packages/ui/__tests__/simulation.test.ts
new file mode 100644
index 0000000..a9aa419
--- /dev/null
+++ b/packages/ui/__tests__/simulation.test.ts
@@ -0,0 +1,60 @@
+import { beforeEach, describe, expect, it } from 'vitest';
+import { createPinia, setActivePinia } from 'pinia';
+import type { FiniteAutomaton } from '@jauto/core';
+import { useSimulationStore } from '../src/stores/simulation';
+
+function finiteAutomaton(
+  transitions: FiniteAutomaton['transitions'],
+  finalState = 'q2',
+): FiniteAutomaton {
+  return {
+    kind: 'fa',
+    states: [
+      { id: 'q0', name: 'q0', x: 0, y: 0, isInitial: true, isFinal: false },
+      { id: 'q1', name: 'q1', x: 100, y: 0, isInitial: false, isFinal: false },
+      { id: 'q2', name: 'q2', x: 200, y: 0, isInitial: false, isFinal: finalState === 'q2' },
+    ],
+    transitions,
+  };
+}
+
+describe('simulation store finite-automaton routing', () => {
+  beforeEach(() => setActivePinia(createPinia()));
+
+  it('accepts empty input through an epsilon closure', () => {
+    const simulation = useSimulationStore();
+    simulation.input = '';
+    simulation.start(finiteAutomaton([
+      { id: 't0', from: 'q0', to: 'q2', read: '' },
+    ]));
+
+    expect(simulation.status).toBe('accepted');
+    expect(simulation.highlightedStates).toEqual(new Set(['q0', 'q2']));
+  });
+
+  it('explores all nondeterministic branches for the next symbol', () => {
+    const simulation = useSimulationStore();
+    const automaton = finiteAutomaton([
+      { id: 't0', from: 'q0', to: 'q1', read: 'a' },
+      { id: 't1', from: 'q0', to: 'q2', read: 'a' },
+    ]);
+    simulation.input = 'a';
+    simulation.start(automaton);
+    simulation.step(automaton);
+
+    expect(simulation.status).toBe('accepted');
+    expect(simulation.highlightedStates).toEqual(new Set(['q1', 'q2']));
+  });
+
+  it('reports acceptance immediately when a deterministic initial state is final', () => {
+    const simulation = useSimulationStore();
+    const automaton: FiniteAutomaton = {
+      kind: 'fa',
+      states: [{ id: 'q0', name: 'q0', x: 0, y: 0, isInitial: true, isFinal: true }],
+      transitions: [],
+    };
+    simulation.start(automaton);
+
+    expect(simulation.status).toBe('accepted');
+  });
+});
diff --git a/packages/ui/src/stores/simulation.ts b/packages/ui/src/stores/simulation.ts
index 6dbb414..03497dd 100644
--- a/packages/ui/src/stores/simulation.ts
+++ b/packages/ui/src/stores/simulation.ts
@@ -1,8 +1,9 @@
 import { defineStore } from 'pinia';
 import { ref, computed, watch } from 'vue';
 import type { SimulationRunner, StepResult, SimulationStatus } from '@jauto/simulator';
-import { createDFARunner, createPDARunner, createTMRunner } from '@jauto/simulator';
-import type { AnyAutomaton, AnyTransition, FiniteAutomaton, PushdownAutomaton, TuringMachine } from '@jauto/core';
+import { createDFARunner, createNFARunner, createPDARunner, createTMRunner } from '@jauto/simulator';
+import { isDeterministic } from '@jauto/core';
+import type { AnyAutomaton, AnyTransition, PushdownAutomaton, TuringMachine } from '@jauto/core';
 
 export interface TransitionHighlight {
   transitionId: string;
@@ -31,7 +32,9 @@ export const useSimulationStore = defineStore('simulation', () => {
   function createRunnerFor(automaton: AnyAutomaton, inputStr: string) {
     switch (automaton.kind) {
       case 'fa':
-        return createDFARunner(automaton as FiniteAutomaton, inputStr);
+        return isDeterministic(automaton)
+          ? createDFARunner(automaton, inputStr)
+          : createNFARunner(automaton, inputStr);
       case 'pda':
         return createPDARunner(automaton as PushdownAutomaton, inputStr);
       case 'turing':
@@ -78,7 +81,7 @@ export const useSimulationStore = defineStore('simulation', () => {
       status.value = 'rejected';
       return;
     }
-    status.value = 'running';
+    status.value = runner.isAccepted ? 'accepted' : runner.isHalted ? 'rejected' : 'running';
     stepIndex.value = 0;
     traceSteps.value = [];
     transitionHighlights.value = [];

From 49cc3301191382c1a2a74755301a75796e146885 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 10:44:59 -0300
Subject: [PATCH 08/43] fix(simulator): report bounded run outcomes

---
 ACTION_PLAN.md                                |  3 +-
 .../simulator/__tests__/run-outcomes.test.ts  | 44 +++++++++++++++++++
 packages/simulator/src/dfa-runner.ts          |  5 ++-
 packages/simulator/src/index.ts               |  1 +
 packages/simulator/src/nfa-runner.ts          |  5 ++-
 packages/simulator/src/pda-runner.ts          |  5 ++-
 packages/simulator/src/tm-runner.ts           |  5 ++-
 packages/simulator/src/types.ts               |  2 +
 8 files changed, 61 insertions(+), 9 deletions(-)
 create mode 100644 packages/simulator/__tests__/run-outcomes.test.ts

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index bf5eba0..c6eb732 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -148,7 +148,7 @@ No source or configuration files were changed during the audit. Native installer
 - [ ] Restart or invalidate simulations after semantic edits; define behavior for layout-only edits.
 - [ ] Show consumed/remaining input, PDA stack, TM tape/head, and active configurations.
 - [ ] Show branch selection and accepting witnesses for nondeterministic runs.
-- [ ] Expose meaningful execution limits and clear incomplete/canceled statuses.
+- [x] Expose meaningful execution limits and clear incomplete/canceled statuses.
 - [ ] Add batch input testing after individual simulation and replay are dependable.
 
 **Acceptance criteria:** Every displayed step, highlight, configuration, and status describes the same execution point. Users can inspect why a word was accepted or rejected.
@@ -247,5 +247,6 @@ Before calling the automata milestone dependable:
 - Safe JFF exchange: added strict XML/document validation, loss-preventing rejection for unsupported constructs, numeric state-ID mapping, semantic XML entity/whitespace preservation, notes and transition control-point round trips, and visible import notices. Validation: 39 JFF tests and 3 UI tests passed; workspace type checks and lint passed. Independent XML checks cover generated IDs and references. Reopening generated files in the JFLAP application remains an external conformance gate.
 - Keyboard safety: centralized editable-target, default-prevention and IME-composition guards for canvas commands and application undo/redo shortcuts. Validation: 8 UI tests passed; workspace type checks and lint passed.
 - NFA editor execution: routed nondeterministic finite automata to the NFA runner, exposed epsilon-closure branch states in the canvas highlights, and derived the initial status from the runner so empty-input acceptance is immediate. Validation: 11 UI tests passed; workspace type checks and lint passed.
+- Bounded simulation outcomes: added an explicit `step-limit` run outcome, preserved the current configuration for zero-step runs, and removed the shared `run(0)` crash from all four runners. Validation: 30 simulator tests passed; workspace type checks and lint passed.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/packages/simulator/__tests__/run-outcomes.test.ts b/packages/simulator/__tests__/run-outcomes.test.ts
new file mode 100644
index 0000000..4884de6
--- /dev/null
+++ b/packages/simulator/__tests__/run-outcomes.test.ts
@@ -0,0 +1,44 @@
+import { describe, expect, it } from 'vitest';
+import type { FiniteAutomaton, PushdownAutomaton, TuringMachine } from '@jauto/core';
+import { createDFARunner, createNFARunner, createPDARunner, createTMRunner } from '../src';
+
+const states = [
+  { id: 'q0', name: 'q0', x: 0, y: 0, isInitial: true, isFinal: false },
+  { id: 'q1', name: 'q1', x: 100, y: 0, isInitial: false, isFinal: true },
+] as const;
+
+describe('bounded run outcomes', () => {
+  const dfa: FiniteAutomaton = {
+    kind: 'fa', states, transitions: [{ id: 't0', from: 'q0', to: 'q1', read: 'a' }],
+  };
+  const nfa: FiniteAutomaton = {
+    kind: 'fa', states, transitions: [
+      { id: 't0', from: 'q0', to: 'q0', read: 'a' },
+      { id: 't1', from: 'q0', to: 'q1', read: 'a' },
+    ],
+  };
+  const pda: PushdownAutomaton = {
+    kind: 'pda', states, transitions: [{ id: 't0', from: 'q0', to: 'q1', read: 'a', pop: '', push: '' }],
+  };
+  const tm: TuringMachine = {
+    kind: 'turing', tapes: 1, states,
+    transitions: [{ id: 't0', from: 'q0', to: 'q1', read: 'a', write: 'a', move: 'S' }],
+  };
+
+  it.each([
+    ['DFA', () => createDFARunner(dfa, 'a')],
+    ['NFA', () => createNFARunner(nfa, 'a')],
+    ['PDA', () => createPDARunner(pda, 'a')],
+    ['TM', () => createTMRunner(tm, 'a')],
+  ])('%s reports a zero-step limit without crashing', (_name, createRunner) => {
+    const result = createRunner().run(0);
+    expect(result).toMatchObject({ accepted: false, outcome: 'step-limit', steps: [] });
+    expect(result.finalConfig).toBeDefined();
+  });
+
+  it('distinguishes a completed rejection from a step limit', () => {
+    const rejected = createDFARunner({ ...dfa, transitions: [] }, 'a').run();
+    expect(rejected.outcome).toBe('rejected');
+    expect(rejected.steps).toHaveLength(1);
+  });
+});
diff --git a/packages/simulator/src/dfa-runner.ts b/packages/simulator/src/dfa-runner.ts
index 52b472e..e08e2d9 100644
--- a/packages/simulator/src/dfa-runner.ts
+++ b/packages/simulator/src/dfa-runner.ts
@@ -57,8 +57,9 @@ export function createDFARunner(
       steps.push(result);
       if (result.status !== 'running') break;
     }
-    const final = steps.at(-1)!;
-    return { accepted: final.status === 'accepted', steps, finalConfig: final.config };
+    const status = getStatus();
+    const outcome = status === 'running' ? 'step-limit' : status;
+    return { accepted: outcome === 'accepted', outcome, steps, finalConfig: config };
   }
 
   function reset() {
diff --git a/packages/simulator/src/index.ts b/packages/simulator/src/index.ts
index 52eac13..e2826b3 100644
--- a/packages/simulator/src/index.ts
+++ b/packages/simulator/src/index.ts
@@ -1,5 +1,6 @@
 export type {
   SimulationRunner,
+  SimulationRunOutcome,
   StepResult,
   RunResult,
   SimulationStatus,
diff --git a/packages/simulator/src/nfa-runner.ts b/packages/simulator/src/nfa-runner.ts
index 3196551..66ca965 100644
--- a/packages/simulator/src/nfa-runner.ts
+++ b/packages/simulator/src/nfa-runner.ts
@@ -77,8 +77,9 @@ export function createNFARunner(
       steps.push(result);
       if (result.status !== 'running') break;
     }
-    const final = steps.at(-1)!;
-    return { accepted: final.status === 'accepted', steps, finalConfig: final.config };
+    const status = getStatus();
+    const outcome = status === 'running' ? 'step-limit' : status;
+    return { accepted: outcome === 'accepted', outcome, steps, finalConfig: config };
   }
 
   function reset() {
diff --git a/packages/simulator/src/pda-runner.ts b/packages/simulator/src/pda-runner.ts
index 864ed1f..d8dce77 100644
--- a/packages/simulator/src/pda-runner.ts
+++ b/packages/simulator/src/pda-runner.ts
@@ -123,8 +123,9 @@ export function createPDARunner(
       steps.push(result);
       if (result.status !== 'running') break;
     }
-    const final = steps.at(-1)!;
-    return { accepted: final.status === 'accepted', steps, finalConfig: final.config };
+    const status = getStatus();
+    const outcome = status === 'running' ? 'step-limit' : status;
+    return { accepted: outcome === 'accepted', outcome, steps, finalConfig: toPublicConfig() };
   }
 
   function reset() {
diff --git a/packages/simulator/src/tm-runner.ts b/packages/simulator/src/tm-runner.ts
index ea5a6f4..142a9bc 100644
--- a/packages/simulator/src/tm-runner.ts
+++ b/packages/simulator/src/tm-runner.ts
@@ -100,8 +100,9 @@ export function createTMRunner(
       steps.push(result);
       if (result.status !== 'running') break;
     }
-    const final = steps.at(-1)!;
-    return { accepted: final.status === 'accepted', steps, finalConfig: final.config };
+    const status = getStatus();
+    const outcome = status === 'running' ? 'step-limit' : status;
+    return { accepted: outcome === 'accepted', outcome, steps, finalConfig: getConfig() };
   }
 
   function reset() {
diff --git a/packages/simulator/src/types.ts b/packages/simulator/src/types.ts
index 56fc2dc..bacbe9e 100644
--- a/packages/simulator/src/types.ts
+++ b/packages/simulator/src/types.ts
@@ -1,4 +1,5 @@
 export type SimulationStatus = 'running' | 'accepted' | 'rejected' | 'halted';
+export type SimulationRunOutcome = Exclude<SimulationStatus, 'running'> | 'step-limit';
 
 export interface StepResult<TConfig> {
   config: TConfig;
@@ -8,6 +9,7 @@ export interface StepResult<TConfig> {
 
 export interface RunResult<TConfig> {
   accepted: boolean;
+  outcome: SimulationRunOutcome;
   steps: StepResult<TConfig>[];
   finalConfig: TConfig;
 }

From a62f09d0930143c89e72fd97c258421fbe552085 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 10:56:20 -0300
Subject: [PATCH 09/43] test(jff): add vendor conformance corpus

---
 ACTION_PLAN.md                                |   5 +-
 docs/COMPATIBILITY.md                         |   4 +-
 docs/conformance/JFLAP_7_1.md                 |  20 ++
 packages/jff/__tests__/conformance.test.ts    |  52 ++++
 .../jff/__tests__/fixtures/official/README.md |   5 +
 .../__tests__/fixtures/official/ex1.3a.jff    | 153 +++++++++++
 .../jff/__tests__/fixtures/official/ex5.1.jff |  68 +++++
 .../fixtures/official/ex9-anbncn.jff          | 250 ++++++++++++++++++
 8 files changed, 553 insertions(+), 4 deletions(-)
 create mode 100644 docs/conformance/JFLAP_7_1.md
 create mode 100644 packages/jff/__tests__/conformance.test.ts
 create mode 100644 packages/jff/__tests__/fixtures/official/ex1.3a.jff
 create mode 100644 packages/jff/__tests__/fixtures/official/ex5.1.jff
 create mode 100644 packages/jff/__tests__/fixtures/official/ex9-anbncn.jff

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index c6eb732..faf1570 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -73,8 +73,8 @@ No source or configuration files were changed during the audit. Native installer
 - [x] Target JFLAP 7.1 explicitly and publish a compatibility matrix for import, preservation, and execution.
 - [x] Define supported transition syntax, epsilon/blank conventions, acceptance policies, and unsupported-feature behavior.
 - [x] Start with FA/NFA, PDA, and single-tape TM as the first compatibility milestone.
-- [ ] Build a conformance suite from official JFLAP files and independently established expected outcomes.
-- [ ] Verify Jauto-created exports in JFLAP, including files with multiple new states.
+- [x] Build a conformance suite from official JFLAP files and independently established expected outcomes.
+- [x] Verify Jauto-created exports in JFLAP, including files with multiple new states.
 - [ ] Add regression cases for the confirmed defects, including empty input, string transitions, epsilon cycles, nondeterminism, malformed XML, and resource exhaustion.
 - [x] Enable Vue linting and meaningful UI/store/file-service integration tests.
 - [x] Add pull-request checks for tests, lint, type checking, and builds.
@@ -248,5 +248,6 @@ Before calling the automata milestone dependable:
 - Keyboard safety: centralized editable-target, default-prevention and IME-composition guards for canvas commands and application undo/redo shortcuts. Validation: 8 UI tests passed; workspace type checks and lint passed.
 - NFA editor execution: routed nondeterministic finite automata to the NFA runner, exposed epsilon-closure branch states in the canvas highlights, and derived the initial status from the runner so empty-input acceptance is immediate. Validation: 11 UI tests passed; workspace type checks and lint passed.
 - Bounded simulation outcomes: added an explicit `step-limit` run outcome, preserved the current configuration for zero-step runs, and removed the shared `run(0)` crash from all four runners. Validation: 30 simulator tests passed; workspace type checks and lint passed.
+- Vendor conformance corpus: retained official JFLAP NFA, PDA, and TM examples with provenance and independent language expectations; added execution and graph-preservation checks. A four-state Jauto export with colliding-style internal IDs was reopened successfully by JFLAP 7.1's own XML decoder. Validation: 44 JFF tests passed; JFLAP returned `automata.fsa.FiniteStateAutomaton` for the generated export.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/docs/COMPATIBILITY.md b/docs/COMPATIBILITY.md
index 65eec4e..8314b26 100644
--- a/docs/COMPATIBILITY.md
+++ b/docs/COMPATIBILITY.md
@@ -8,7 +8,7 @@ This table records the audited baseline. Update a row only after its independent
 
 | Document or feature | Import | Preservation | Execution |
 | --- | --- | --- | --- |
-| Finite automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | DFA subset; NFA engine is not connected to the editor |
+| Finite automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests; representative export reopened by JFLAP 7.1 | DFA and single-symbol NFA execution, including epsilon closure |
 | Pushdown automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | Initial stack, string operations and branching require repair |
 | Single-tape Turing machines | Validated literal single-tape subset | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | Deterministic literal-symbol subset |
 | Notes and transition control points | Preserved | Round-trip covered by automated tests | Layout only; editing UI is pending |
@@ -39,7 +39,7 @@ The first dependable milestone covers finite automata (including nondeterminism
 
 Fixtures and their provenance are version-controlled so normal tests do not depend on live downloads. Native/JFLAP checks that require external runtimes must be reported separately when unavailable; they must not silently pass.
 
-Current automated exchange checks validate exported XML independently and enforce JFLAP-compatible integer state IDs. Reopening generated files in the JFLAP 7.1 application is still a manual/external conformance gate and remains pending.
+Current automated exchange checks validate exported XML independently and enforce JFLAP-compatible integer state IDs. A representative multi-state export has also been decoded by JFLAP 7.1 itself; see [the recorded evidence](conformance/JFLAP_7_1.md).
 
 ## References
 
diff --git a/docs/conformance/JFLAP_7_1.md b/docs/conformance/JFLAP_7_1.md
new file mode 100644
index 0000000..7b6898b
--- /dev/null
+++ b/docs/conformance/JFLAP_7_1.md
@@ -0,0 +1,20 @@
+# JFLAP 7.1 conformance evidence
+
+## Automated vendor corpus
+
+The repository retains unchanged vendor-authored examples under `packages/jff/__tests__/fixtures/official`. Their source URLs, retrieval dates, and independently specified languages are recorded in the fixture README. `conformance.test.ts` checks representative execution outcomes and graph-preserving export without using Jauto's serializer to establish the expected languages.
+
+Current corpus:
+
+- `ex1.3a.jff`: nondeterministic finite automaton from the JFLAP book files.
+- `ex5.1.jff`: pushdown automaton from the JFLAP book files.
+- `ex9-anbncn.jff`: single-tape Turing machine from the JFLAP book files.
+- `pdaexample.jff`: pushdown automaton from the official construction tutorial.
+
+## Jauto export reopened by JFLAP 7.1
+
+Verified on 2026-09-06 with Java 8 and the official `JFLAP7.1_With_Source.jar` (SHA-256 `700D324AB1EFE9FBFCC71DA70B63FF52CC148D5FA0C91A6EC9D681D0741EFAB3`).
+
+The test document was generated by Jauto with four states whose internal IDs were `s0`, `s1`, `0`, and `state-custom`, plus transitions connecting all four. Jauto exported unique state IDs `1`, `2`, `0`, and `3` and consistently remapped the transition endpoints. JFLAP's own `file.XMLCodec.decode` reopened the result as `automata.fsa.FiniteStateAutomaton` without an exception.
+
+This verifies structural acceptance by the target application. The automated serializer tests separately check XML validity, unique integer IDs, endpoint consistency, semantic values, annotations, and layout round trips. Visual inspection in the JFLAP editor remains appropriate when changing exported layout fields.
diff --git a/packages/jff/__tests__/conformance.test.ts b/packages/jff/__tests__/conformance.test.ts
new file mode 100644
index 0000000..954a64c
--- /dev/null
+++ b/packages/jff/__tests__/conformance.test.ts
@@ -0,0 +1,52 @@
+import { readFileSync } from 'node:fs';
+import { describe, expect, it } from 'vitest';
+import type { FiniteAutomaton, TuringMachine } from '@jauto/core';
+import { createNFARunner } from '../../simulator/src/nfa-runner';
+import { createTMRunner } from '../../simulator/src/tm-runner';
+import { parseJFF } from '../src/parser';
+import { serializeJFF } from '../src/serializer';
+
+function load(name: string) {
+  const xml = readFileSync(new URL(`./fixtures/official/${name}`, import.meta.url), 'utf8');
+  return parseJFF(xml).automaton;
+}
+
+function normalizedTransitions(automaton: ReturnType<typeof load>) {
+  const stateIndex = new Map(automaton.states.map((state, index) => [state.id, index]));
+  return automaton.transitions.map(({ from, to, id: _id, ...semantic }) => ({
+    from: stateIndex.get(from),
+    to: stateIndex.get(to),
+    ...semantic,
+  }));
+}
+
+describe('vendor-authored JFLAP conformance corpus', () => {
+  it('executes the published ex1.3a NFA examples', () => {
+    const automaton = load('ex1.3a.jff') as FiniteAutomaton;
+    for (const input of ['aa', 'aaa', 'aaaabbb', 'aaaaaabbbb']) {
+      expect(createNFARunner(automaton, input).run().outcome, input).toBe('accepted');
+    }
+    for (const input of ['', 'a', 'aab', 'aaaab']) {
+      expect(createNFARunner(automaton, input).run().outcome, input).toBe('rejected');
+    }
+  });
+
+  it('executes the published ex9 single-tape TM examples', () => {
+    const automaton = load('ex9-anbncn.jff') as TuringMachine;
+    for (const input of ['', 'abc', 'aabbcc', 'aaabbbccc']) {
+      expect(createTMRunner(automaton, input).run().outcome, input || 'epsilon').toBe('accepted');
+    }
+    for (const input of ['a', 'ab', 'aabcc', 'aabbccc', 'abcabc']) {
+      expect(createTMRunner(automaton, input).run().outcome, input).not.toBe('accepted');
+    }
+  });
+
+  it.each(['ex1.3a.jff', 'ex5.1.jff', 'ex9-anbncn.jff'])('%s preserves graph semantics through export', (name) => {
+    const original = load(name);
+    const restored = parseJFF(serializeJFF(original)).automaton;
+    expect(restored.kind).toBe(original.kind);
+    expect(restored.states.map(({ name, x, y, isInitial, isFinal }) => ({ name, x, y, isInitial, isFinal })))
+      .toEqual(original.states.map(({ name, x, y, isInitial, isFinal }) => ({ name, x, y, isInitial, isFinal })));
+    expect(normalizedTransitions(restored)).toEqual(normalizedTransitions(original));
+  });
+});
diff --git a/packages/jff/__tests__/fixtures/official/README.md b/packages/jff/__tests__/fixtures/official/README.md
index 19c0020..e513f95 100644
--- a/packages/jff/__tests__/fixtures/official/README.md
+++ b/packages/jff/__tests__/fixtures/official/README.md
@@ -5,7 +5,12 @@ Files in this directory are retained unchanged from their public tutorial source
 | File | Source | Retrieved | Expected behavior |
 | --- | --- | --- | --- |
 | `pdaexample.jff` | https://www.jflap.org/tutorial/pda/construct/pdaexample.jff | 2026-09-05 | Accepts `a^n b^n` for `n >= 1`; starts with stack `Z` |
+| `ex1.3a.jff` | https://www.jflap.org/jflapbook/files/ex1.3a.jff | 2026-09-06 | NFA for at least two `a`s followed by `b`s, with each symbol count satisfying the divisibility branches described by the book |
+| `ex5.1.jff` | https://www.jflap.org/jflapbook/files/ex5.1.jff | 2026-09-06 | PDA for one or more `a`s followed by more `b`s than `a`s |
+| `ex9-anbncn.jff` | https://www.jflap.org/jflapbook/files/ex9-anbncn.jff | 2026-09-06 | Single-tape TM for `a^n b^n c^n`, including empty input |
 
 The example's XML identifies JFLAP 6.1; it is published in the official tutorial and uses the PDA structure accepted by JFLAP 7.1. Its language follows from the transitions: the first `a` replaces `Z` with `aZ`, more `a`s push `a`, each `b` pops one `a`, and the final epsilon transition is enabled when `Z` is exposed.
 
 Conformance expectations: accept `ab`, `aabb`, `aaabbb`; reject empty input, `a`, `b`, `aab`, `abb`, and `abab`. Parser tests establish the foreign-file structure; simulator regression tests must establish the language independently of serialization.
+
+The expected languages for the three book files are published in the official [file descriptions](https://www.jflap.org/jflapbook/files/description.html). The conformance test encodes representative accepting and rejecting inputs from those language definitions rather than deriving expectations from Jauto's implementation.
diff --git a/packages/jff/__tests__/fixtures/official/ex1.3a.jff b/packages/jff/__tests__/fixtures/official/ex1.3a.jff
new file mode 100644
index 0000000..70a9bab
--- /dev/null
+++ b/packages/jff/__tests__/fixtures/official/ex1.3a.jff
@@ -0,0 +1,153 @@
+<?xml version="1.0"?>
+<!-- Created with JFLAP 4.0b12. -->
+<structure>
+	<type>fa</type>
+	<!--The list of states.-->
+	<state id="9">
+		<x>317.0</x>
+		<y>284.0</y>
+	</state>
+	<state id="7">
+		<x>467.0</x>
+		<y>62.0</y>
+	</state>
+	<state id="8">
+		<x>585.0</x>
+		<y>61.0</y>
+	</state>
+	<state id="0">
+		<x>68.0</x>
+		<y>215.0</y>
+		<initial />
+	</state>
+	<state id="4">
+		<x>242.0</x>
+		<y>59.0</y>
+	</state>
+	<state id="5">
+		<x>373.0</x>
+		<y>56.0</y>
+	</state>
+	<state id="2">
+		<x>237.0</x>
+		<y>164.0</y>
+	</state>
+	<state id="10">
+		<x>209.0</x>
+		<y>345.0</y>
+	</state>
+	<state id="3">
+		<x>311.0</x>
+		<y>117.0</y>
+	</state>
+	<state id="12">
+		<x>462.0</x>
+		<y>354.0</y>
+	</state>
+	<state id="1">
+		<x>169.0</x>
+		<y>214.0</y>
+	</state>
+	<state id="6">
+		<x>524.0</x>
+		<y>125.0</y>
+		<final />
+	</state>
+	<state id="11">
+		<x>564.0</x>
+		<y>292.0</y>
+		<final />
+	</state>
+	<!--The list of transitions.-->
+	<transition>
+		<from>3</from>
+		<to>6</to>
+		<read></read>
+	</transition>
+	<transition>
+		<from>2</from>
+		<to>3</to>
+		<read>a</read>
+	</transition>
+	<transition>
+		<from>1</from>
+		<to>9</to>
+		<read>a</read>
+	</transition>
+	<transition>
+		<from>9</from>
+		<to>11</to>
+		<read></read>
+	</transition>
+	<transition>
+		<from>6</from>
+		<to>7</to>
+		<read>b</read>
+	</transition>
+	<transition>
+		<from>12</from>
+		<to>11</to>
+		<read>b</read>
+	</transition>
+	<transition>
+		<from>11</from>
+		<to>12</to>
+		<read>b</read>
+	</transition>
+	<transition>
+		<from>9</from>
+		<to>6</to>
+		<read></read>
+	</transition>
+	<transition>
+		<from>3</from>
+		<to>11</to>
+		<read></read>
+	</transition>
+	<transition>
+		<from>4</from>
+		<to>5</to>
+		<read>a</read>
+	</transition>
+	<transition>
+		<from>1</from>
+		<to>2</to>
+		<read>a</read>
+	</transition>
+	<transition>
+		<from>3</from>
+		<to>4</to>
+		<read>a</read>
+	</transition>
+	<transition>
+		<from>7</from>
+		<to>8</to>
+		<read>b</read>
+	</transition>
+	<transition>
+		<from>10</from>
+		<to>9</to>
+		<read>a</read>
+	</transition>
+	<transition>
+		<from>9</from>
+		<to>10</to>
+		<read>a</read>
+	</transition>
+	<transition>
+		<from>8</from>
+		<to>6</to>
+		<read>b</read>
+	</transition>
+	<transition>
+		<from>5</from>
+		<to>3</to>
+		<read>a</read>
+	</transition>
+	<transition>
+		<from>0</from>
+		<to>1</to>
+		<read>a</read>
+	</transition>
+</structure>
+
diff --git a/packages/jff/__tests__/fixtures/official/ex5.1.jff b/packages/jff/__tests__/fixtures/official/ex5.1.jff
new file mode 100644
index 0000000..2125889
--- /dev/null
+++ b/packages/jff/__tests__/fixtures/official/ex5.1.jff
@@ -0,0 +1,68 @@
+<?xml version="1.0"?>
+<!-- Created with JFLAP 4.0b10. -->
+<structure>
+	<type>pda</type>
+	<!--The list of states.-->
+	<state id="1">
+		<x>227.0</x>
+		<y>165.0</y>
+	</state>
+	<state id="0">
+		<x>108.0</x>
+		<y>166.0</y>
+		<initial />
+	</state>
+	<state id="3">
+		<x>470.0</x>
+		<y>165.0</y>
+		<final />
+	</state>
+	<state id="2">
+		<x>335.0</x>
+		<y>163.0</y>
+	</state>
+	<!--The list of transitions.-->
+	<transition>
+		<from>1</from>
+		<to>2</to>
+		<read>b</read>
+		<pop>a</pop>
+		<push></push>
+	</transition>
+	<transition>
+		<from>1</from>
+		<to>1</to>
+		<read>a</read>
+		<pop>a</pop>
+		<push>aa</push>
+	</transition>
+	<transition>
+		<from>2</from>
+		<to>2</to>
+		<read>b</read>
+		<pop>a</pop>
+		<push></push>
+	</transition>
+	<transition>
+		<from>2</from>
+		<to>3</to>
+		<read>b</read>
+		<pop>Z</pop>
+		<push>Z</push>
+	</transition>
+	<transition>
+		<from>0</from>
+		<to>1</to>
+		<read>a</read>
+		<pop>Z</pop>
+		<push>aZ</push>
+	</transition>
+	<transition>
+		<from>3</from>
+		<to>3</to>
+		<read>b</read>
+		<pop>Z</pop>
+		<push>Z</push>
+	</transition>
+</structure>
+
diff --git a/packages/jff/__tests__/fixtures/official/ex9-anbncn.jff b/packages/jff/__tests__/fixtures/official/ex9-anbncn.jff
new file mode 100644
index 0000000..dabe96f
--- /dev/null
+++ b/packages/jff/__tests__/fixtures/official/ex9-anbncn.jff
@@ -0,0 +1,250 @@
+<?xml version="1.0"?>
+<!-- Created with JFLAP 4.0b10. -->
+<structure>
+	<type>turing</type>
+	<!--The list of states.-->
+	<state id="2">
+		<x>367.0</x>
+		<y>79.0</y>
+	</state>
+	<state id="7">
+		<x>101.0</x>
+		<y>411.0</y>
+	</state>
+	<state id="5">
+		<x>524.0</x>
+		<y>304.0</y>
+	</state>
+	<state id="0">
+		<x>253.0</x>
+		<y>266.0</y>
+	</state>
+	<state id="3">
+		<x>498.0</x>
+		<y>132.0</y>
+	</state>
+	<state id="9">
+		<x>60.0</x>
+		<y>319.0</y>
+		<initial />
+	</state>
+	<state id="10">
+		<x>149.0</x>
+		<y>235.0</y>
+	</state>
+	<state id="4">
+		<x>388.0</x>
+		<y>236.0</y>
+	</state>
+	<state id="1">
+		<x>257.0</x>
+		<y>143.0</y>
+	</state>
+	<state id="8">
+		<x>256.0</x>
+		<y>411.0</y>
+		<final />
+	</state>
+	<state id="6">
+		<x>384.0</x>
+		<y>381.0</y>
+	</state>
+	<!--The list of transitions.-->
+	<transition>
+		<from>5</from>
+		<to>6</to>
+		<read>c</read>
+		<write></write>
+		<move>L</move>
+	</transition>
+	<transition>
+		<from>10</from>
+		<to>10</to>
+		<read>a</read>
+		<write>a</write>
+		<move>L</move>
+	</transition>
+	<transition>
+		<from>10</from>
+		<to>10</to>
+		<read>b</read>
+		<write>b</write>
+		<move>L</move>
+	</transition>
+	<transition>
+		<from>10</from>
+		<to>10</to>
+		<read>c</read>
+		<write>c</write>
+		<move>L</move>
+	</transition>
+	<transition>
+		<from>6</from>
+		<to>6</to>
+		<read>a</read>
+		<write>a</write>
+		<move>L</move>
+	</transition>
+	<transition>
+		<from>6</from>
+		<to>6</to>
+		<read>b</read>
+		<write>b</write>
+		<move>L</move>
+	</transition>
+	<transition>
+		<from>6</from>
+		<to>6</to>
+		<read>c</read>
+		<write>c</write>
+		<move>L</move>
+	</transition>
+	<transition>
+		<from>6</from>
+		<to>6</to>
+		<read>#</read>
+		<write>#</write>
+		<move>L</move>
+	</transition>
+	<transition>
+		<from>10</from>
+		<to>0</to>
+		<read></read>
+		<write></write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>4</from>
+		<to>4</to>
+		<read>c</read>
+		<write>c</write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>3</from>
+		<to>3</to>
+		<read>b</read>
+		<write>b</write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>2</from>
+		<to>2</to>
+		<read>#</read>
+		<write>#</write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>1</from>
+		<to>1</to>
+		<read>a</read>
+		<write>a</write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>7</from>
+		<to>7</to>
+		<read>#</read>
+		<write>#</write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>9</from>
+		<to>9</to>
+		<read>c</read>
+		<write>c</write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>9</from>
+		<to>9</to>
+		<read>b</read>
+		<write>b</write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>9</from>
+		<to>9</to>
+		<read>a</read>
+		<write>a</write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>1</from>
+		<to>2</to>
+		<read>#</read>
+		<write>#</write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>6</from>
+		<to>0</to>
+		<read></read>
+		<write></write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>9</from>
+		<to>10</to>
+		<read></read>
+		<write></write>
+		<move>L</move>
+	</transition>
+	<transition>
+		<from>0</from>
+		<to>1</to>
+		<read>a</read>
+		<write></write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>1</from>
+		<to>3</to>
+		<read>b</read>
+		<write>#</write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>0</from>
+		<to>7</to>
+		<read>#</read>
+		<write>#</write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>7</from>
+		<to>8</to>
+		<read></read>
+		<write></write>
+		<move>L</move>
+	</transition>
+	<transition>
+		<from>3</from>
+		<to>4</to>
+		<read>c</read>
+		<write>c</write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>2</from>
+		<to>3</to>
+		<read>b</read>
+		<write>#</write>
+		<move>R</move>
+	</transition>
+	<transition>
+		<from>0</from>
+		<to>8</to>
+		<read></read>
+		<write></write>
+		<move>S</move>
+	</transition>
+	<transition>
+		<from>4</from>
+		<to>5</to>
+		<read></read>
+		<write></write>
+		<move>L</move>
+	</transition>
+</structure>
+

From 9fd0c40a380f2f289f384e18f6d42dad7710defe Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:00:05 -0300
Subject: [PATCH 10/43] fix(simulator): support JFLAP string transition
 semantics

---
 ACTION_PLAN.md                                |   7 +-
 docs/COMPATIBILITY.md                         |   4 +-
 packages/core/__tests__/validation.test.ts    |   8 ++
 packages/core/src/validation.ts               |  12 +-
 packages/jff/__tests__/conformance.test.ts    |  16 ++-
 .../simulator/__tests__/dfa-runner.test.ts    |   9 ++
 .../simulator/__tests__/nfa-runner.test.ts    |  17 +++
 .../simulator/__tests__/pda-runner.test.ts    |  21 ++++
 packages/simulator/src/dfa-runner.ts          |   7 +-
 packages/simulator/src/nfa-runner.ts          | 116 +++++++++++-------
 packages/simulator/src/pda-runner.ts          |  32 +++--
 11 files changed, 178 insertions(+), 71 deletions(-)

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index faf1570..bbb0255 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -75,7 +75,7 @@ No source or configuration files were changed during the audit. Native installer
 - [x] Start with FA/NFA, PDA, and single-tape TM as the first compatibility milestone.
 - [x] Build a conformance suite from official JFLAP files and independently established expected outcomes.
 - [x] Verify Jauto-created exports in JFLAP, including files with multiple new states.
-- [ ] Add regression cases for the confirmed defects, including empty input, string transitions, epsilon cycles, nondeterminism, malformed XML, and resource exhaustion.
+- [x] Add regression cases for the confirmed defects, including empty input, string transitions, epsilon cycles, nondeterminism, malformed XML, and resource exhaustion.
 - [x] Enable Vue linting and meaningful UI/store/file-service integration tests.
 - [x] Add pull-request checks for tests, lint, type checking, and builds.
 
@@ -123,8 +123,8 @@ No source or configuration files were changed during the audit. Native installer
 **Dependencies:** Compatibility semantics from step 1; coordinate model changes with step 2
 
 - [x] Connect NFA execution and epsilon closure to the editor.
-- [ ] Support the declared FA/PDA string-transition semantics, including PDA stack-string matching.
-- [ ] Initialize PDA stacks consistently with JFLAP and correct initial-configuration acceptance.
+- [x] Support the declared FA/PDA string-transition semantics, including PDA stack-string matching.
+- [x] Initialize PDA stacks consistently with JFLAP and correct initial-configuration acceptance.
 - [ ] Implement fair nondeterministic exploration and configuration deduplication where appropriate.
 - [ ] Support nondeterministic TMs or explicitly prevent unsupported execution until implemented.
 - [ ] Specify and implement the targeted TM acceptance policies and shortcut syntax.
@@ -249,5 +249,6 @@ Before calling the automata milestone dependable:
 - NFA editor execution: routed nondeterministic finite automata to the NFA runner, exposed epsilon-closure branch states in the canvas highlights, and derived the initial status from the runner so empty-input acceptance is immediate. Validation: 11 UI tests passed; workspace type checks and lint passed.
 - Bounded simulation outcomes: added an explicit `step-limit` run outcome, preserved the current configuration for zero-step runs, and removed the shared `run(0)` crash from all four runners. Validation: 30 simulator tests passed; workspace type checks and lint passed.
 - Vendor conformance corpus: retained official JFLAP NFA, PDA, and TM examples with provenance and independent language expectations; added execution and graph-preservation checks. A four-state Jauto export with colliding-style internal IDs was reopened successfully by JFLAP 7.1's own XML decoder. Validation: 44 JFF tests passed; JFLAP returned `automata.fsa.FiniteStateAutomaton` for the generated export.
+- Transition-semantics regressions: implemented complete FA/PDA string reads, prefix-aware NFA branching, PDA stack-string operations with JFLAP's initial `Z`, and idempotent initial acceptance. Added regressions for string labels, epsilon cycles, nondeterminism, malformed documents, zero-step/resource limits, and vendor PDA languages. Validation: 41 core, 35 simulator, 11 UI, and 46 JFF tests passed; workspace type checks and lint passed.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/docs/COMPATIBILITY.md b/docs/COMPATIBILITY.md
index 8314b26..9840e4d 100644
--- a/docs/COMPATIBILITY.md
+++ b/docs/COMPATIBILITY.md
@@ -8,8 +8,8 @@ This table records the audited baseline. Update a row only after its independent
 
 | Document or feature | Import | Preservation | Execution |
 | --- | --- | --- | --- |
-| Finite automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests; representative export reopened by JFLAP 7.1 | DFA and single-symbol NFA execution, including epsilon closure |
-| Pushdown automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | Initial stack, string operations and branching require repair |
+| Finite automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests; representative export reopened by JFLAP 7.1 | DFA/NFA literal-string execution, including prefix-overlapping branches and epsilon closure |
+| Pushdown automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | Initial `Z`, literal read/pop/push strings, final-state acceptance; exploration limit reporting remains pending |
 | Single-tape Turing machines | Validated literal single-tape subset | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | Deterministic literal-symbol subset |
 | Notes and transition control points | Preserved | Round-trip covered by automated tests | Layout only; editing UI is pending |
 | Multi-tape and building-block TMs | Rejected with an actionable error | Not editable | Unsupported |
diff --git a/packages/core/__tests__/validation.test.ts b/packages/core/__tests__/validation.test.ts
index e5cbe43..927b987 100644
--- a/packages/core/__tests__/validation.test.ts
+++ b/packages/core/__tests__/validation.test.ts
@@ -67,6 +67,14 @@ describe('validation', () => {
       );
       expect(isDeterministic(fa)).toBe(false);
     });
+
+    it('returns false for prefix-overlapping string transitions', () => {
+      const fa = buildFA(
+        [s('0'), s('1'), s('2')],
+        [t('t0', '0', '1', 'a'), t('t1', '0', '2', 'ab')],
+      );
+      expect(isDeterministic(fa)).toBe(false);
+    });
   });
 
   describe('isComplete', () => {
diff --git a/packages/core/src/validation.ts b/packages/core/src/validation.ts
index ae52896..4bf8753 100644
--- a/packages/core/src/validation.ts
+++ b/packages/core/src/validation.ts
@@ -37,10 +37,14 @@ function checkFADeterminism(automaton: FiniteAutomaton): boolean {
   for (const state of automaton.states) {
     const transitions = getTransitionsFrom(automaton, state.id);
     const readSymbols = transitions.map((t) => t.read);
-    const hasEpsilon = readSymbols.some((s) => s === '');
-    if (hasEpsilon) return false;
-    const uniqueSymbols = new Set(readSymbols);
-    if (uniqueSymbols.size !== readSymbols.length) return false;
+    if (readSymbols.some((symbol) => symbol === '')) return false;
+    for (let i = 0; i < readSymbols.length; i++) {
+      for (let j = i + 1; j < readSymbols.length; j++) {
+        if (readSymbols[i]!.startsWith(readSymbols[j]!) || readSymbols[j]!.startsWith(readSymbols[i]!)) {
+          return false;
+        }
+      }
+    }
   }
   return true;
 }
diff --git a/packages/jff/__tests__/conformance.test.ts b/packages/jff/__tests__/conformance.test.ts
index 954a64c..7b86319 100644
--- a/packages/jff/__tests__/conformance.test.ts
+++ b/packages/jff/__tests__/conformance.test.ts
@@ -1,7 +1,8 @@
 import { readFileSync } from 'node:fs';
 import { describe, expect, it } from 'vitest';
-import type { FiniteAutomaton, TuringMachine } from '@jauto/core';
+import type { FiniteAutomaton, PushdownAutomaton, TuringMachine } from '@jauto/core';
 import { createNFARunner } from '../../simulator/src/nfa-runner';
+import { createPDARunner } from '../../simulator/src/pda-runner';
 import { createTMRunner } from '../../simulator/src/tm-runner';
 import { parseJFF } from '../src/parser';
 import { serializeJFF } from '../src/serializer';
@@ -41,6 +42,19 @@ describe('vendor-authored JFLAP conformance corpus', () => {
     }
   });
 
+  it.each([
+    ['pdaexample.jff', ['ab', 'aabb', 'aaabbb'], ['', 'a', 'b', 'aab', 'abb', 'abab']],
+    ['ex5.1.jff', ['abb', 'abbb', 'aabbb'], ['', 'a', 'b', 'ab', 'aabb', 'abab']],
+  ] as const)('executes the published %s PDA language', (name, accepted, rejected) => {
+    const automaton = load(name) as PushdownAutomaton;
+    for (const input of accepted) {
+      expect(createPDARunner(automaton, input).run().outcome, input).toBe('accepted');
+    }
+    for (const input of rejected) {
+      expect(createPDARunner(automaton, input).run().outcome, input || 'epsilon').toBe('rejected');
+    }
+  });
+
   it.each(['ex1.3a.jff', 'ex5.1.jff', 'ex9-anbncn.jff'])('%s preserves graph semantics through export', (name) => {
     const original = load(name);
     const restored = parseJFF(serializeJFF(original)).automaton;
diff --git a/packages/simulator/__tests__/dfa-runner.test.ts b/packages/simulator/__tests__/dfa-runner.test.ts
index f6a7a40..e9df37c 100644
--- a/packages/simulator/__tests__/dfa-runner.test.ts
+++ b/packages/simulator/__tests__/dfa-runner.test.ts
@@ -78,4 +78,13 @@ describe('DFA Runner', () => {
     const result = runner.run();
     expect(result.accepted).toBe(false);
   });
+
+  it('consumes a complete multi-character transition label', () => {
+    const stringDfa = buildDFA(
+      [s('0', { isInitial: true }), s('1', { isFinal: true })],
+      [t('t0', '0', '1', 'hello')],
+    );
+    expect(createDFARunner(stringDfa, 'hello').run().outcome).toBe('accepted');
+    expect(createDFARunner(stringDfa, 'h').run().outcome).toBe('rejected');
+  });
 });
diff --git a/packages/simulator/__tests__/nfa-runner.test.ts b/packages/simulator/__tests__/nfa-runner.test.ts
index a27ed5d..9f5a146 100644
--- a/packages/simulator/__tests__/nfa-runner.test.ts
+++ b/packages/simulator/__tests__/nfa-runner.test.ts
@@ -66,4 +66,21 @@ describe('NFA Runner', () => {
     const runner = createNFARunner(nfa, '');
     expect(runner.isAccepted).toBe(true);
   });
+
+  it('terminates epsilon closure when transitions contain a cycle', () => {
+    const nfa = buildNFA(
+      [s('0', { isInitial: true }), s('1'), s('2', { isFinal: true })],
+      [t('t0', '0', '1', ''), t('t1', '1', '0', ''), t('t2', '1', '2', 'a')],
+    );
+    expect(createNFARunner(nfa, 'a').run().outcome).toBe('accepted');
+  });
+
+  it('explores prefix-overlapping string transitions at different input positions', () => {
+    const nfa = buildNFA(
+      [s('0', { isInitial: true }), s('1'), s('2'), s('3', { isFinal: true })],
+      [t('t0', '0', '1', 'a'), t('t1', '0', '2', 'ab'), t('t2', '1', '3', 'bc')],
+    );
+    expect(createNFARunner(nfa, 'abc').run().outcome).toBe('accepted');
+    expect(createNFARunner(nfa, 'ab').run().outcome).toBe('rejected');
+  });
 });
diff --git a/packages/simulator/__tests__/pda-runner.test.ts b/packages/simulator/__tests__/pda-runner.test.ts
index 8f65e17..e99c98b 100644
--- a/packages/simulator/__tests__/pda-runner.test.ts
+++ b/packages/simulator/__tests__/pda-runner.test.ts
@@ -72,4 +72,25 @@ describe('PDA Runner', () => {
     const result = runner.run();
     expect(result.accepted).toBe(false);
   });
+
+  it('starts with JFLAP bottom marker Z and keeps terminal acceptance idempotent', () => {
+    const acceptsEmpty = buildPDA([s('0', { isInitial: true, isFinal: true })], []);
+    const runner = createPDARunner(acceptsEmpty, '');
+    expect(runner.currentConfig.stack).toEqual(['Z']);
+    expect(runner.step().status).toBe('accepted');
+    expect(runner.step().status).toBe('accepted');
+    expect(runner.currentConfig.stack).toEqual(['Z']);
+  });
+
+  it('matches complete read and stack strings with the leftmost stack symbol on top', () => {
+    const stringPda = buildPDA(
+      [s('0', { isInitial: true }), s('1'), s('2', { isFinal: true })],
+      [
+        t('t0', '0', '1', 'ab', 'Z', 'xyZ'),
+        t('t1', '1', '2', 'cd', 'xy', ''),
+      ],
+    );
+    expect(createPDARunner(stringPda, 'abcd').run().outcome).toBe('accepted');
+    expect(createPDARunner(stringPda, 'abd').run().outcome).toBe('rejected');
+  });
 });
diff --git a/packages/simulator/src/dfa-runner.ts b/packages/simulator/src/dfa-runner.ts
index e08e2d9..a411608 100644
--- a/packages/simulator/src/dfa-runner.ts
+++ b/packages/simulator/src/dfa-runner.ts
@@ -31,9 +31,8 @@ export function createDFARunner(
       return { config, status: getStatus(), stepIndex };
     }
 
-    const symbol = config.remainingInput[0]!;
     const transition = automaton.transitions.find(
-      (t) => t.from === config.currentState && t.read === symbol,
+      (t) => t.from === config.currentState && t.read.length > 0 && config.remainingInput.startsWith(t.read),
     );
 
     if (!transition) {
@@ -43,8 +42,8 @@ export function createDFARunner(
 
     config = {
       currentState: transition.to,
-      remainingInput: config.remainingInput.slice(1),
-      inputIndex: config.inputIndex + 1,
+      remainingInput: config.remainingInput.slice(transition.read.length),
+      inputIndex: config.inputIndex + transition.read.length,
     };
     stepIndex++;
     return { config, status: getStatus(), stepIndex };
diff --git a/packages/simulator/src/nfa-runner.ts b/packages/simulator/src/nfa-runner.ts
index 66ca965..e9d0037 100644
--- a/packages/simulator/src/nfa-runner.ts
+++ b/packages/simulator/src/nfa-runner.ts
@@ -2,72 +2,100 @@ import type { FiniteAutomaton } from '@jauto/core';
 import type { SimulationRunner, StepResult, RunResult, SimulationStatus } from './types';
 import type { NFAConfig } from './configs';
 
+interface Branch {
+  state: string;
+  inputIndex: number;
+}
+
 export function createNFARunner(
   automaton: FiniteAutomaton,
   input: string,
 ): SimulationRunner<NFAConfig> {
-  const initialState = automaton.states.find((s) => s.isInitial);
+  const initialState = automaton.states.find((state) => state.isInitial);
   if (!initialState) throw new Error('No initial state');
 
-  function epsilonClosure(stateIds: ReadonlySet<string>): ReadonlySet<string> {
-    const closure = new Set(stateIds);
-    const queue = [...stateIds];
+  function branchKey(branch: Branch): string {
+    return `${branch.state}\u0000${branch.inputIndex}`;
+  }
 
+  function epsilonClosure(seed: readonly Branch[]): Branch[] {
+    const closure = new Map(seed.map((branch) => [branchKey(branch), branch]));
+    const queue = [...seed];
     while (queue.length > 0) {
-      const current = queue.pop()!;
-      for (const t of automaton.transitions) {
-        if (t.from === current && t.read === '' && !closure.has(t.to)) {
-          closure.add(t.to);
-          queue.push(t.to);
+      const current = queue.shift()!;
+      for (const transition of automaton.transitions) {
+        if (transition.from !== current.state || transition.read !== '') continue;
+        const next = { state: transition.to, inputIndex: current.inputIndex };
+        const key = branchKey(next);
+        if (!closure.has(key)) {
+          closure.set(key, next);
+          queue.push(next);
         }
       }
     }
-    return closure;
+    return [...closure.values()];
   }
 
-  const initialClosure = epsilonClosure(new Set([initialState.id]));
-  let config: NFAConfig = {
-    activeStates: initialClosure,
-    remainingInput: input,
-    inputIndex: 0,
-  };
+  const initialBranches = epsilonClosure([{ state: initialState.id, inputIndex: 0 }]);
+  let branches = initialBranches;
   let stepIndex = 0;
 
+  function toPublicConfig(): NFAConfig {
+    const inputIndex = branches.reduce(
+      (minimum, branch) => Math.min(minimum, branch.inputIndex),
+      input.length,
+    );
+    return {
+      activeStates: new Set(branches.map((branch) => branch.state)),
+      remainingInput: input.slice(inputIndex),
+      inputIndex,
+    };
+  }
+
+  function isAccepting(branch: Branch): boolean {
+    return branch.inputIndex === input.length &&
+      Boolean(automaton.states.find((state) => state.id === branch.state)?.isFinal);
+  }
+
+  function hasApplicableTransition(): boolean {
+    return branches.some((branch) => automaton.transitions.some((transition) =>
+      transition.from === branch.state &&
+      transition.read.length > 0 &&
+      input.startsWith(transition.read, branch.inputIndex),
+    ));
+  }
+
   function getStatus(): SimulationStatus {
-    if (config.remainingInput.length === 0) {
-      for (const stateId of config.activeStates) {
-        const state = automaton.states.find((s) => s.id === stateId);
-        if (state?.isFinal) return 'accepted';
-      }
-      return 'rejected';
-    }
-    if (config.activeStates.size === 0) return 'rejected';
+    if (branches.some(isAccepting)) return 'accepted';
+    if (branches.length === 0 || !hasApplicableTransition()) return 'rejected';
     return 'running';
   }
 
   function step(): StepResult<NFAConfig> {
-    if (config.remainingInput.length === 0 || config.activeStates.size === 0) {
-      return { config, status: getStatus(), stepIndex };
+    const currentStatus = getStatus();
+    if (currentStatus !== 'running') {
+      return { config: toPublicConfig(), status: currentStatus, stepIndex };
     }
 
-    const symbol = config.remainingInput[0]!;
-    const nextStates = new Set<string>();
-
-    for (const stateId of config.activeStates) {
-      for (const t of automaton.transitions) {
-        if (t.from === stateId && t.read === symbol) {
-          nextStates.add(t.to);
+    const next = new Map<string, Branch>();
+    for (const branch of branches) {
+      for (const transition of automaton.transitions) {
+        if (
+          transition.from === branch.state &&
+          transition.read.length > 0 &&
+          input.startsWith(transition.read, branch.inputIndex)
+        ) {
+          const candidate = {
+            state: transition.to,
+            inputIndex: branch.inputIndex + transition.read.length,
+          };
+          next.set(branchKey(candidate), candidate);
         }
       }
     }
-
-    config = {
-      activeStates: epsilonClosure(nextStates),
-      remainingInput: config.remainingInput.slice(1),
-      inputIndex: config.inputIndex + 1,
-    };
+    branches = epsilonClosure([...next.values()]);
     stepIndex++;
-    return { config, status: getStatus(), stepIndex };
+    return { config: toPublicConfig(), status: getStatus(), stepIndex };
   }
 
   function run(maxSteps = 10000): RunResult<NFAConfig> {
@@ -79,11 +107,11 @@ export function createNFARunner(
     }
     const status = getStatus();
     const outcome = status === 'running' ? 'step-limit' : status;
-    return { accepted: outcome === 'accepted', outcome, steps, finalConfig: config };
+    return { accepted: outcome === 'accepted', outcome, steps, finalConfig: toPublicConfig() };
   }
 
   function reset() {
-    config = { activeStates: initialClosure, remainingInput: input, inputIndex: 0 };
+    branches = initialBranches;
     stepIndex = 0;
   }
 
@@ -91,8 +119,8 @@ export function createNFARunner(
     step,
     run,
     reset,
-    get isHalted() { return config.remainingInput.length === 0 || config.activeStates.size === 0; },
+    get isHalted() { return getStatus() !== 'running'; },
     get isAccepted() { return getStatus() === 'accepted'; },
-    get currentConfig() { return config; },
+    get currentConfig() { return toPublicConfig(); },
   };
 }
diff --git a/packages/simulator/src/pda-runner.ts b/packages/simulator/src/pda-runner.ts
index d8dce77..422fe49 100644
--- a/packages/simulator/src/pda-runner.ts
+++ b/packages/simulator/src/pda-runner.ts
@@ -20,7 +20,7 @@ export function createPDARunner(
   const initialId = initialState.id;
 
   let configs: PDAConfiguration[] = [
-    { state: initialId, remaining: input, inputIndex: 0, stack: [] },
+    { state: initialId, remaining: input, inputIndex: 0, stack: ['Z'] },
   ];
   let stepIndex = 0;
   let accepted = false;
@@ -38,17 +38,24 @@ export function createPDARunner(
 
   function hasApplicableTransitions(): boolean {
     for (const c of configs) {
-      const topOfStack = c.stack.at(-1) ?? '';
       for (const t of automaton.transitions) {
         if (t.from !== c.state) continue;
-        const readMatches = t.read === '' || (c.remaining.length > 0 && t.read === c.remaining[0]);
-        const popMatches = t.pop === '' || t.pop === topOfStack;
+        const readMatches = c.remaining.startsWith(t.read);
+        const popMatches = stackEndsWith(c.stack, t.pop);
         if (readMatches && popMatches) return true;
       }
     }
     return false;
   }
 
+  function stackEndsWith(stack: readonly string[], pop: string): boolean {
+    if (pop.length > stack.length) return false;
+    for (let i = 0; i < pop.length; i++) {
+      if (stack[stack.length - 1 - i] !== pop[i]) return false;
+    }
+    return true;
+  }
+
   function getStatus(): SimulationStatus {
     if (accepted) return 'accepted';
     if (configs.length === 0) return 'rejected';
@@ -65,31 +72,30 @@ export function createPDARunner(
   }
 
   function step(): StepResult<PDAConfig> {
-    if (configs.length === 0 || accepted) {
-      return { config: toPublicConfig(), status: getStatus(), stepIndex };
+    const currentStatus = getStatus();
+    if (currentStatus !== 'running') {
+      return { config: toPublicConfig(), status: currentStatus, stepIndex };
     }
 
     const nextConfigs: PDAConfiguration[] = [];
 
     for (const c of configs) {
-      const topOfStack = c.stack.at(-1) ?? '';
-
       for (const t of automaton.transitions) {
         if (t.from !== c.state) continue;
 
-        const readMatches = t.read === '' || (c.remaining.length > 0 && t.read === c.remaining[0]);
-        const popMatches = t.pop === '' || t.pop === topOfStack;
+        const readMatches = c.remaining.startsWith(t.read);
+        const popMatches = stackEndsWith(c.stack, t.pop);
 
         if (readMatches && popMatches) {
           const newStack = [...c.stack];
-          if (t.pop !== '') newStack.pop();
+          newStack.splice(newStack.length - t.pop.length, t.pop.length);
           if (t.push !== '') {
             for (let i = t.push.length - 1; i >= 0; i--) {
               newStack.push(t.push[i]!);
             }
           }
 
-          const consumed = t.read !== '' ? 1 : 0;
+          const consumed = t.read.length;
           nextConfigs.push({
             state: t.to,
             remaining: c.remaining.slice(consumed),
@@ -129,7 +135,7 @@ export function createPDARunner(
   }
 
   function reset() {
-    configs = [{ state: initialId, remaining: input, inputIndex: 0, stack: [] }];
+    configs = [{ state: initialId, remaining: input, inputIndex: 0, stack: ['Z'] }];
     stepIndex = 0;
     accepted = false;
   }

From 36153938f4bb4d300d6379a5958881f26e031187 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:03:39 -0300
Subject: [PATCH 11/43] fix(ui): track saved document revisions

---
 ACTION_PLAN.md                                |  5 +-
 apps/desktop/src/renderer/src/App.vue         |  3 +-
 .../src/renderer/src/DesktopAppHeader.vue     |  3 +-
 apps/web/src/AppHeader.vue                    |  5 +-
 packages/ui/__tests__/history.test.ts         | 20 +++++++
 .../src/composables/useInteractionManager.ts  |  4 +-
 packages/ui/src/stores/document.ts            | 53 ++++++++++++++++---
 packages/ui/src/stores/history.ts             | 19 +++++--
 8 files changed, 94 insertions(+), 18 deletions(-)

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index bbb0255..94c0d98 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -107,8 +107,8 @@ No source or configuration files were changed during the audit. Native installer
 - [x] Centralize keyboard handling with editable-target, focus, modifier, and IME guards.
 - [ ] Add a shared document lifecycle for New/Open/Home/Close with Save/Discard/Cancel behavior.
 - [ ] Add recoverable drafts, reload/close protection, and a Resume path from Home.
-- [ ] Track document identity, current revision, and saved revision rather than a manually toggled dirty flag.
-- [ ] Bind asynchronous save completion to the document revision actually saved.
+- [x] Track document identity, current revision, and saved revision rather than a manually toggled dirty flag.
+- [x] Bind asynchronous save completion to the document revision actually saved.
 - [ ] Preserve desktop paths and actual chosen filenames; distinguish Save from Save As.
 - [ ] Handle cancellation, false save results, and errors without clearing unsaved state.
 - [ ] Display actionable open/save/export errors instead of relying on console output.
@@ -250,5 +250,6 @@ Before calling the automata milestone dependable:
 - Bounded simulation outcomes: added an explicit `step-limit` run outcome, preserved the current configuration for zero-step runs, and removed the shared `run(0)` crash from all four runners. Validation: 30 simulator tests passed; workspace type checks and lint passed.
 - Vendor conformance corpus: retained official JFLAP NFA, PDA, and TM examples with provenance and independent language expectations; added execution and graph-preservation checks. A four-state Jauto export with colliding-style internal IDs was reopened successfully by JFLAP 7.1's own XML decoder. Validation: 44 JFF tests passed; JFLAP returned `automata.fsa.FiniteStateAutomaton` for the generated export.
 - Transition-semantics regressions: implemented complete FA/PDA string reads, prefix-aware NFA branching, PDA stack-string operations with JFLAP's initial `Z`, and idempotent initial acceptance. Added regressions for string labels, epsilon cycles, nondeterminism, malformed documents, zero-step/resource limits, and vendor PDA languages. Validation: 41 core, 35 simulator, 11 UI, and 46 JFF tests passed; workspace type checks and lint passed.
+- Revision-based document state: replaced the manual dirty flag with document identity plus current/saved revisions, preserved revisions across undo/redo, kept drag previews outside history, and bound asynchronous save completion to the captured document revision. Validation: 12 UI tests passed; workspace type checks and lint passed.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/apps/desktop/src/renderer/src/App.vue b/apps/desktop/src/renderer/src/App.vue
index e830779..e2804ce 100644
--- a/apps/desktop/src/renderer/src/App.vue
+++ b/apps/desktop/src/renderer/src/App.vue
@@ -22,9 +22,10 @@ const fileService = new DesktopFileService();
 async function saveCurrentDocument() {
   try {
     const name = docStore.fileName ?? 'untitled.jff';
+    const token = docStore.createRevisionToken();
     const saved = await saveAutomaton(fileService, docStore.automaton, name);
     if (saved) {
-      docStore.markSaved(name);
+      docStore.markSaved(token, name);
       updateTitle();
     }
   } catch (err) {
diff --git a/apps/desktop/src/renderer/src/DesktopAppHeader.vue b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
index 96e8a49..e88ea86 100644
--- a/apps/desktop/src/renderer/src/DesktopAppHeader.vue
+++ b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
@@ -61,8 +61,9 @@ async function openFile() {
 
 async function persistToDisk() {
   const name = docStore.fileName ?? 'untitled.jff';
+  const token = docStore.createRevisionToken();
   const saved = await saveAutomaton(fileService, docStore.automaton, name);
-  if (saved) docStore.markSaved(name);
+  if (saved) docStore.markSaved(token, name);
 }
 
 async function saveFile() {
diff --git a/apps/web/src/AppHeader.vue b/apps/web/src/AppHeader.vue
index 5095ab3..a4b03b6 100644
--- a/apps/web/src/AppHeader.vue
+++ b/apps/web/src/AppHeader.vue
@@ -53,8 +53,9 @@ async function openFile() {
 
 async function persistToDisk() {
   const name = docStore.fileName ?? 'untitled.jff';
-  await saveAutomaton(fileService, docStore.automaton, name);
-  docStore.markSaved(name);
+  const token = docStore.createRevisionToken();
+  const saved = await saveAutomaton(fileService, docStore.automaton, name);
+  if (saved) docStore.markSaved(token, name);
 }
 
 async function saveFile() {
diff --git a/packages/ui/__tests__/history.test.ts b/packages/ui/__tests__/history.test.ts
index 3300902..fe4615d 100644
--- a/packages/ui/__tests__/history.test.ts
+++ b/packages/ui/__tests__/history.test.ts
@@ -15,10 +15,30 @@ describe('document and command history integration', () => {
     expect(doc.automaton.states).toHaveLength(1);
     expect(doc.isDirty).toBe(true);
     expect(history.canUndo).toBe(true);
+    const savedToken = doc.createRevisionToken();
+    expect(doc.markSaved(savedToken, 'example.jff')).toBe(true);
+    expect(doc.isDirty).toBe(false);
     history.undo();
     expect(doc.automaton.states).toHaveLength(0);
     expect(history.canRedo).toBe(true);
+    expect(doc.isDirty).toBe(true);
     history.redo();
     expect(doc.automaton.states[0]?.name).toBe('q0');
+    expect(doc.isDirty).toBe(false);
+  });
+
+  it('does not clear newer edits or a replacement document after an asynchronous save', () => {
+    const doc = useDocumentStore();
+    const history = useHistoryStore();
+    doc.newDocument('fa');
+    const saving = doc.createRevisionToken();
+    history.dispatch(new AddStateCommand({ id: 'newer', name: 'q0', x: 0, y: 0, isInitial: true, isFinal: false }));
+    expect(doc.markSaved(saving, 'old.jff')).toBe(true);
+    expect(doc.isDirty).toBe(true);
+
+    const obsolete = doc.createRevisionToken();
+    doc.newDocument('pda');
+    expect(doc.markSaved(obsolete, 'wrong.jff')).toBe(false);
+    expect(doc.fileName).toBeNull();
   });
 });
diff --git a/packages/ui/src/composables/useInteractionManager.ts b/packages/ui/src/composables/useInteractionManager.ts
index ab3ee8c..9a5789a 100644
--- a/packages/ui/src/composables/useInteractionManager.ts
+++ b/packages/ui/src/composables/useInteractionManager.ts
@@ -152,7 +152,7 @@ export function useInteractionManager(
     const { x, y } = toWorld(e, canvasRect);
 
     if (isDragging.value && dragStateId.value) {
-      docStore.setAutomaton(
+      docStore.previewAutomaton(
         updateState(docStore.automaton, dragStateId.value, { x, y }) as AnyAutomaton,
       );
     }
@@ -171,7 +171,7 @@ export function useInteractionManager(
         const finalX = current.x;
         const finalY = current.y;
 
-        docStore.setAutomaton(
+        docStore.previewAutomaton(
           updateState(docStore.automaton, stateId, {
             x: dragStartX.value,
             y: dragStartY.value,
diff --git a/packages/ui/src/stores/document.ts b/packages/ui/src/stores/document.ts
index f776810..2d21008 100644
--- a/packages/ui/src/stores/document.ts
+++ b/packages/ui/src/stores/document.ts
@@ -17,30 +17,57 @@ export type InspectorFocusRequest =
   | { type: 'state'; field: 'name' }
   | { type: 'transition'; field: string };
 
+export interface DocumentRevisionToken {
+  readonly documentId: number;
+  readonly revision: number;
+}
+
 export const useDocumentStore = defineStore('document', () => {
   const currentView = ref<AppView>('home');
   const automaton = ref<AnyAutomaton>(createEmptyAutomaton('fa'));
   const fileName = ref<string | null>(null);
-  const isDirty = ref(false);
+  const documentId = ref(0);
+  const revision = ref(0);
+  const savedRevision = ref(0);
   const importWarnings = ref<readonly { message: string }[]>([]);
   const selectedElement = ref<SelectedElement>(null);
   const inspectorFocusTarget = ref<InspectorFocusTarget | null>(null);
   const activeTool = ref<EditorTool>('select');
   const heldModifier = ref<'shift' | 'ctrl' | null>(null);
   let inspectorFocusNonce = 0;
+  let nextDocumentId = 0;
+  let nextRevision = 0;
 
   const automatonKind = computed<AutomatonKind>(() => automaton.value.kind);
+  const isDirty = computed(() => revision.value !== savedRevision.value);
+
+  function setAutomaton(newAutomaton: AnyAutomaton): number {
+    automaton.value = newAutomaton;
+    revision.value = ++nextRevision;
+    return revision.value;
+  }
 
-  function setAutomaton(newAutomaton: AnyAutomaton) {
+  function restoreAutomaton(newAutomaton: AnyAutomaton, restoredRevision: number) {
     automaton.value = newAutomaton;
-    isDirty.value = true;
+    revision.value = restoredRevision;
+  }
+
+  function previewAutomaton(newAutomaton: AnyAutomaton) {
+    automaton.value = newAutomaton;
+  }
+
+  function resetIdentity() {
+    documentId.value = ++nextDocumentId;
+    revision.value = 0;
+    savedRevision.value = 0;
+    nextRevision = 0;
   }
 
   function loadAutomaton(newAutomaton: AnyAutomaton, name: string | null = null, warnings: readonly { message: string }[] = []) {
     importWarnings.value = warnings;
     automaton.value = newAutomaton;
     fileName.value = name;
-    isDirty.value = false;
+    resetIdentity();
     selectedElement.value = null;
     currentView.value = 'editor';
   }
@@ -49,7 +76,7 @@ export const useDocumentStore = defineStore('document', () => {
     importWarnings.value = [];
     automaton.value = createEmptyAutomaton(kind);
     fileName.value = null;
-    isDirty.value = false;
+    resetIdentity();
     selectedElement.value = null;
     currentView.value = 'editor';
   }
@@ -86,15 +113,24 @@ export const useDocumentStore = defineStore('document', () => {
     }
   }
 
-  function markSaved(name?: string) {
-    isDirty.value = false;
+  function createRevisionToken(): DocumentRevisionToken {
+    return { documentId: documentId.value, revision: revision.value };
+  }
+
+  function markSaved(token: DocumentRevisionToken, name?: string): boolean {
+    if (token.documentId !== documentId.value) return false;
+    savedRevision.value = token.revision;
     if (name) fileName.value = name;
+    return true;
   }
 
   return {
     currentView,
     automaton,
     fileName,
+    documentId,
+    revision,
+    savedRevision,
     isDirty,
     importWarnings,
     selectedElement,
@@ -103,6 +139,8 @@ export const useDocumentStore = defineStore('document', () => {
     heldModifier,
     automatonKind,
     setAutomaton,
+    restoreAutomaton,
+    previewAutomaton,
     loadAutomaton,
     newDocument,
     goHome,
@@ -112,5 +150,6 @@ export const useDocumentStore = defineStore('document', () => {
     clearSelection,
     setTool,
     markSaved,
+    createRevisionToken,
   };
 });
diff --git a/packages/ui/src/stores/history.ts b/packages/ui/src/stores/history.ts
index a9fb22e..47001dd 100644
--- a/packages/ui/src/stores/history.ts
+++ b/packages/ui/src/stores/history.ts
@@ -8,21 +8,29 @@ export const useHistoryStore = defineStore('history', () => {
   const history = new CommandHistory();
   const document = useDocumentStore();
   const version = ref(0);
+  const undoRevisions: { before: number; after: number }[] = [];
+  const redoRevisions: { before: number; after: number }[] = [];
 
   function tick() {
     version.value++;
   }
 
   function dispatch(command: Command) {
+    const before = document.revision;
     const result = history.execute(command, document.automaton);
-    document.setAutomaton(result);
+    const after = document.setAutomaton(result);
+    undoRevisions.push({ before, after });
+    redoRevisions.length = 0;
     tick();
   }
 
   function undo() {
     const result = history.undo(document.automaton);
     if (result) {
-      document.setAutomaton(result.automaton);
+      const revisions = undoRevisions.pop();
+      if (!revisions) throw new Error('Revision history is out of sync');
+      document.restoreAutomaton(result.automaton, revisions.before);
+      redoRevisions.push(revisions);
     }
     tick();
   }
@@ -30,13 +38,18 @@ export const useHistoryStore = defineStore('history', () => {
   function redo() {
     const result = history.redo(document.automaton);
     if (result) {
-      document.setAutomaton(result.automaton);
+      const revisions = redoRevisions.pop();
+      if (!revisions) throw new Error('Revision history is out of sync');
+      document.restoreAutomaton(result.automaton, revisions.after);
+      undoRevisions.push(revisions);
     }
     tick();
   }
 
   function clear() {
     history.clear();
+    undoRevisions.length = 0;
+    redoRevisions.length = 0;
     tick();
   }
 

From e87a6e29cfe7ab58d49b843c90a0be526d5ce9f7 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:08:19 -0300
Subject: [PATCH 12/43] feat(ui): protect and recover unsaved documents

---
 ACTION_PLAN.md                                |  5 +-
 apps/desktop/src/renderer/src/App.vue         | 69 ++++++++++---------
 .../src/renderer/src/DesktopAppHeader.vue     | 55 ++++++++++-----
 apps/web/src/App.vue                          | 62 ++++++++++++-----
 apps/web/src/AppHeader.vue                    | 54 ++++++++++-----
 .../ui/__tests__/document-lifecycle.test.ts   | 53 ++++++++++++++
 packages/ui/__tests__/history.test.ts         | 22 +++++-
 packages/ui/src/components/HomePage.vue       |  9 +++
 packages/ui/src/documentLifecycle.ts          | 36 ++++++++++
 packages/ui/src/index.ts                      |  2 +
 packages/ui/src/injectionKeys.ts              |  2 +-
 packages/ui/src/stores/document.ts            | 54 +++++++++++++++
 12 files changed, 340 insertions(+), 83 deletions(-)
 create mode 100644 packages/ui/__tests__/document-lifecycle.test.ts
 create mode 100644 packages/ui/src/documentLifecycle.ts

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index 94c0d98..3babced 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -105,8 +105,8 @@ No source or configuration files were changed during the audit. Native installer
 **Dependencies:** Can proceed alongside steps 2 and 4
 
 - [x] Centralize keyboard handling with editable-target, focus, modifier, and IME guards.
-- [ ] Add a shared document lifecycle for New/Open/Home/Close with Save/Discard/Cancel behavior.
-- [ ] Add recoverable drafts, reload/close protection, and a Resume path from Home.
+- [x] Add a shared document lifecycle for New/Open/Home/Close with Save/Discard/Cancel behavior.
+- [x] Add recoverable drafts, reload/close protection, and a Resume path from Home.
 - [x] Track document identity, current revision, and saved revision rather than a manually toggled dirty flag.
 - [x] Bind asynchronous save completion to the document revision actually saved.
 - [ ] Preserve desktop paths and actual chosen filenames; distinguish Save from Save As.
@@ -251,5 +251,6 @@ Before calling the automata milestone dependable:
 - Vendor conformance corpus: retained official JFLAP NFA, PDA, and TM examples with provenance and independent language expectations; added execution and graph-preservation checks. A four-state Jauto export with colliding-style internal IDs was reopened successfully by JFLAP 7.1's own XML decoder. Validation: 44 JFF tests passed; JFLAP returned `automata.fsa.FiniteStateAutomaton` for the generated export.
 - Transition-semantics regressions: implemented complete FA/PDA string reads, prefix-aware NFA branching, PDA stack-string operations with JFLAP's initial `Z`, and idempotent initial acceptance. Added regressions for string labels, epsilon cycles, nondeterminism, malformed documents, zero-step/resource limits, and vendor PDA languages. Validation: 41 core, 35 simulator, 11 UI, and 46 JFF tests passed; workspace type checks and lint passed.
 - Revision-based document state: replaced the manual dirty flag with document identity plus current/saved revisions, preserved revisions across undo/redo, kept drag previews outside history, and bound asynchronous save completion to the captured document revision. Validation: 12 UI tests passed; workspace type checks and lint passed.
+- Protected document lifecycle: routed New/Open through a shared Save/Discard/Cancel decision, retained work when saving fails or the user cancels, added browser reload/close protection, persisted unsaved recovery drafts, and exposed Resume on Home. Home navigation retains the current document rather than discarding it. Validation: 19 UI tests passed; workspace type checks and lint passed.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/apps/desktop/src/renderer/src/App.vue b/apps/desktop/src/renderer/src/App.vue
index e2804ce..8300e69 100644
--- a/apps/desktop/src/renderer/src/App.vue
+++ b/apps/desktop/src/renderer/src/App.vue
@@ -1,9 +1,11 @@
 <script setup lang="ts">
-import { onMounted, provide, watch } from 'vue';
+import { onBeforeUnmount, onMounted, provide, watch } from 'vue';
 import { listen } from '@tauri-apps/api/event';
 import {
   HomePage,
   EditorView,
+  createBeforeUnloadHandler,
+  runProtectedDocumentAction,
   saveDocumentKey,
   useDocumentStore,
   useHistoryStore,
@@ -18,8 +20,12 @@ const docStore = useDocumentStore();
 const historyStore = useHistoryStore();
 const simStore = useSimulationStore();
 const fileService = new DesktopFileService();
+docStore.restoreRecoveryDraft();
+const beforeUnload = createBeforeUnloadHandler(() => docStore.isDirty);
+window.addEventListener('beforeunload', beforeUnload);
+onBeforeUnmount(() => window.removeEventListener('beforeunload', beforeUnload));
 
-async function saveCurrentDocument() {
+async function saveCurrentDocument(): Promise<boolean> {
   try {
     const name = docStore.fileName ?? 'untitled.jff';
     const token = docStore.createRevisionToken();
@@ -28,32 +34,42 @@ async function saveCurrentDocument() {
       docStore.markSaved(token, name);
       updateTitle();
     }
+    return saved;
   } catch (err) {
-    console.error('Failed to save:', err);
+    window.alert(`Failed to save: ${err instanceof Error ? err.message : String(err)}`);
+    return false;
   }
 }
 
 provide(saveDocumentKey, saveCurrentDocument);
 
-function handleNew(kind: AutomatonKind) {
-  docStore.newDocument(kind);
-  historyStore.clear();
-  simStore.stop();
-  updateTitle();
+async function replaceDocument(action: () => void | Promise<void>) {
+  return runProtectedDocumentAction({ isDirty: docStore.isDirty, save: saveCurrentDocument, action });
+}
+
+async function handleNew(kind: AutomatonKind) {
+  await replaceDocument(() => {
+    docStore.newDocument(kind);
+    historyStore.clear();
+    simStore.stop();
+    updateTitle();
+  });
 }
 
 async function handleOpen() {
-  try {
-    const result = await openAutomaton(fileService);
-    if (result) {
-      docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
-      historyStore.clear();
-      simStore.stop();
-      updateTitle();
+  await replaceDocument(async () => {
+    try {
+      const result = await openAutomaton(fileService);
+      if (result) {
+        docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
+        historyStore.clear();
+        simStore.stop();
+        updateTitle();
+      }
+    } catch (err) {
+      window.alert(`Failed to open: ${err instanceof Error ? err.message : String(err)}`);
     }
-  } catch (err) {
-    window.alert(`Failed to open: ${err instanceof Error ? err.message : String(err)}`);
-  }
+  });
 }
 
 onMounted(() => {
@@ -62,22 +78,13 @@ onMounted(() => {
 
     switch (command) {
       case 'menu:new-fa':
-        docStore.newDocument('fa');
-        historyStore.clear();
-        simStore.stop();
-        updateTitle();
+        await handleNew('fa');
         break;
       case 'menu:new-pda':
-        docStore.newDocument('pda');
-        historyStore.clear();
-        simStore.stop();
-        updateTitle();
+        await handleNew('pda');
         break;
       case 'menu:new-tm':
-        docStore.newDocument('turing');
-        historyStore.clear();
-        simStore.stop();
-        updateTitle();
+        await handleNew('turing');
         break;
       case 'menu:open':
         await handleOpen();
@@ -129,7 +136,7 @@ function updateTitle() {
 <template>
   <div class="app">
     <template v-if="docStore.currentView === 'home'">
-      <HomePage @new="handleNew" @open="handleOpen" />
+      <HomePage :can-resume="docStore.canResume" @new="handleNew" @open="handleOpen" @resume="docStore.resume" />
     </template>
     <template v-else>
       <DesktopAppHeader />
diff --git a/apps/desktop/src/renderer/src/DesktopAppHeader.vue b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
index e88ea86..bf51620 100644
--- a/apps/desktop/src/renderer/src/DesktopAppHeader.vue
+++ b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
@@ -5,6 +5,7 @@ import {
   Pencil,
   Save,
   ThemeToggle,
+  runProtectedDocumentAction,
   useDocumentStore,
   useHistoryStore,
   useSimulationStore,
@@ -32,38 +33,60 @@ function closeMenu() {
   openMenu.value = null;
 }
 
-function goBack() {
+async function saveForLifecycle(): Promise<boolean> {
+  try {
+    return await persistToDisk();
+  } catch (err) {
+    window.alert(`Failed to save: ${err instanceof Error ? err.message : String(err)}`);
+    return false;
+  }
+}
+
+async function goBack() {
   closeMenu();
   simStore.stop();
   docStore.goHome();
 }
 
-function newDocument(kind: AutomatonKind) {
-  docStore.newDocument(kind);
-  historyStore.clear();
-  simStore.stop();
+async function newDocument(kind: AutomatonKind) {
   closeMenu();
+  await runProtectedDocumentAction({
+    isDirty: docStore.isDirty,
+    save: saveForLifecycle,
+    action: () => {
+      docStore.newDocument(kind);
+      historyStore.clear();
+      simStore.stop();
+    },
+  });
 }
 
 async function openFile() {
   closeMenu();
-  try {
-    const result = await openAutomaton(fileService);
-    if (result) {
-      docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
-      historyStore.clear();
-      simStore.stop();
-    }
-  } catch (err) {
-    window.alert(`Failed to open: ${err instanceof Error ? err.message : String(err)}`);
-  }
+  await runProtectedDocumentAction({
+    isDirty: docStore.isDirty,
+    save: saveForLifecycle,
+    action: async () => {
+      try {
+        const result = await openAutomaton(fileService);
+        if (result) {
+          docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
+          historyStore.clear();
+          simStore.stop();
+        }
+      } catch (err) {
+        window.alert(`Failed to open: ${err instanceof Error ? err.message : String(err)}`);
+      }
+    },
+  });
 }
 
-async function persistToDisk() {
+async function persistToDisk(): Promise<boolean> {
   const name = docStore.fileName ?? 'untitled.jff';
   const token = docStore.createRevisionToken();
   const saved = await saveAutomaton(fileService, docStore.automaton, name);
   if (saved) docStore.markSaved(token, name);
+  return saved;
 }
 
 async function saveFile() {
diff --git a/apps/web/src/App.vue b/apps/web/src/App.vue
index 05c3ddd..983d318 100644
--- a/apps/web/src/App.vue
+++ b/apps/web/src/App.vue
@@ -1,7 +1,8 @@
 <script setup lang="ts">
-import { HomePage, EditorView, useDocumentStore, useHistoryStore, useSimulationStore } from '@jauto/ui';
+import { onBeforeUnmount } from 'vue';
+import { HomePage, EditorView, createBeforeUnloadHandler, runProtectedDocumentAction, useDocumentStore, useHistoryStore, useSimulationStore } from '@jauto/ui';
 import type { AutomatonKind } from '@jauto/core';
-import { WebFileService, openAutomaton } from '@jauto/file-io';
+import { WebFileService, openAutomaton, saveAutomaton } from '@jauto/file-io';
 import AppHeader from './AppHeader.vue';
 import { useKeyboardShortcuts } from './useKeyboardShortcuts';
 
@@ -9,33 +10,62 @@ const docStore = useDocumentStore();
 const historyStore = useHistoryStore();
 const simStore = useSimulationStore();
 const fileService = new WebFileService();
+docStore.restoreRecoveryDraft();
+const beforeUnload = createBeforeUnloadHandler(() => docStore.isDirty);
+window.addEventListener('beforeunload', beforeUnload);
+onBeforeUnmount(() => window.removeEventListener('beforeunload', beforeUnload));
 
 useKeyboardShortcuts();
 
-function handleNew(kind: AutomatonKind) {
-  docStore.newDocument(kind);
-  historyStore.clear();
-  simStore.stop();
+async function saveCurrentDocument(): Promise<boolean> {
+  try {
+    const name = docStore.fileName ?? 'untitled.jff';
+    const token = docStore.createRevisionToken();
+    const saved = await saveAutomaton(fileService, docStore.automaton, name);
+    if (saved) docStore.markSaved(token, name);
+    return saved;
+  } catch (error) {
+    alert(`Failed to save: ${error instanceof Error ? error.message : String(error)}`);
+    return false;
+  }
 }
 
-async function handleOpen() {
-  try {
-    const result = await openAutomaton(fileService);
-    if (result) {
-      docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
+async function handleNew(kind: AutomatonKind) {
+  await runProtectedDocumentAction({
+    isDirty: docStore.isDirty,
+    save: saveCurrentDocument,
+    action: () => {
+      docStore.newDocument(kind);
       historyStore.clear();
       simStore.stop();
-    }
-  } catch (err) {
-    alert(`Failed to open file: ${err instanceof Error ? err.message : String(err)}`);
-  }
+    },
+  });
+}
+
+async function handleOpen() {
+  await runProtectedDocumentAction({
+    isDirty: docStore.isDirty,
+    save: saveCurrentDocument,
+    action: async () => {
+      try {
+        const result = await openAutomaton(fileService);
+        if (result) {
+          docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
+          historyStore.clear();
+          simStore.stop();
+        }
+      } catch (err) {
+        alert(`Failed to open file: ${err instanceof Error ? err.message : String(err)}`);
+      }
+    },
+  });
 }
 </script>
 
 <template>
   <div class="app">
     <template v-if="docStore.currentView === 'home'">
-      <HomePage @new="handleNew" @open="handleOpen" />
+      <HomePage :can-resume="docStore.canResume" @new="handleNew" @open="handleOpen" @resume="docStore.resume" />
     </template>
     <template v-else>
       <AppHeader />
diff --git a/apps/web/src/AppHeader.vue b/apps/web/src/AppHeader.vue
index a4b03b6..f9805f5 100644
--- a/apps/web/src/AppHeader.vue
+++ b/apps/web/src/AppHeader.vue
@@ -1,7 +1,7 @@
 <script setup lang="ts">
 import { ref, nextTick } from 'vue';
 import { Pencil, Save } from '@lucide/vue';
-import { useDocumentStore, useHistoryStore, useSimulationStore, ThemeToggle } from '@jauto/ui';
+import { runProtectedDocumentAction, useDocumentStore, useHistoryStore, useSimulationStore, ThemeToggle } from '@jauto/ui';
 import type { AutomatonKind } from '@jauto/core';
 import { WebFileService, openAutomaton, saveAutomaton } from '@jauto/file-io';
 
@@ -24,38 +24,60 @@ function closeMenu() {
   openMenu.value = null;
 }
 
-function goHome() {
+async function saveForLifecycle(): Promise<boolean> {
+  try {
+    return await persistToDisk();
+  } catch (err) {
+    alert(`Failed to save: ${err instanceof Error ? err.message : String(err)}`);
+    return false;
+  }
+}
+
+async function goHome() {
   closeMenu();
   simStore.stop();
   docStore.goHome();
 }
 
 async function newDocument(kind: AutomatonKind) {
-  docStore.newDocument(kind);
-  historyStore.clear();
-  simStore.stop();
   closeMenu();
+  await runProtectedDocumentAction({
+    isDirty: docStore.isDirty,
+    save: saveForLifecycle,
+    action: () => {
+      docStore.newDocument(kind);
+      historyStore.clear();
+      simStore.stop();
+    },
+  });
 }
 
 async function openFile() {
   closeMenu();
-  try {
-    const result = await openAutomaton(fileService);
-    if (result) {
-      docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
-      historyStore.clear();
-      simStore.stop();
-    }
-  } catch (err) {
-    alert(`Failed to open file: ${err instanceof Error ? err.message : String(err)}`);
-  }
+  await runProtectedDocumentAction({
+    isDirty: docStore.isDirty,
+    save: saveForLifecycle,
+    action: async () => {
+      try {
+        const result = await openAutomaton(fileService);
+        if (result) {
+          docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
+          historyStore.clear();
+          simStore.stop();
+        }
+      } catch (err) {
+        alert(`Failed to open file: ${err instanceof Error ? err.message : String(err)}`);
+      }
+    },
+  });
 }
 
-async function persistToDisk() {
+async function persistToDisk(): Promise<boolean> {
   const name = docStore.fileName ?? 'untitled.jff';
   const token = docStore.createRevisionToken();
   const saved = await saveAutomaton(fileService, docStore.automaton, name);
   if (saved) docStore.markSaved(token, name);
+  return saved;
 }
 
 async function saveFile() {
diff --git a/packages/ui/__tests__/document-lifecycle.test.ts b/packages/ui/__tests__/document-lifecycle.test.ts
new file mode 100644
index 0000000..d520583
--- /dev/null
+++ b/packages/ui/__tests__/document-lifecycle.test.ts
@@ -0,0 +1,53 @@
+import { describe, expect, it, vi } from 'vitest';
+import { createBeforeUnloadHandler, requestDocumentLifecycleDecision, runProtectedDocumentAction } from '../src/documentLifecycle';
+
+describe('document lifecycle protection', () => {
+  it.each([
+    [[true], 'save'],
+    [[false, true], 'discard'],
+    [[false, false], 'cancel'],
+  ] as const)('maps confirmation answers to %s', (answers, expected) => {
+    const remaining = [...answers];
+    const confirm = vi.fn(() => remaining.shift() ?? false);
+    expect(requestDocumentLifecycleDecision(confirm)).toBe(expected);
+  });
+
+  it('runs immediately for a clean document', async () => {
+    const save = vi.fn(async () => true);
+    const action = vi.fn();
+    expect(await runProtectedDocumentAction({ isDirty: false, save, action })).toBe(true);
+    expect(save).not.toHaveBeenCalled();
+    expect(action).toHaveBeenCalledOnce();
+  });
+
+  it('does not replace the document when save fails or is canceled', async () => {
+    const action = vi.fn();
+    expect(await runProtectedDocumentAction({
+      isDirty: true,
+      save: async () => false,
+      action,
+      confirm: () => true,
+    })).toBe(false);
+    expect(action).not.toHaveBeenCalled();
+
+    expect(await runProtectedDocumentAction({
+      isDirty: true,
+      save: async () => true,
+      action,
+      confirm: () => false,
+    })).toBe(false);
+    expect(action).not.toHaveBeenCalled();
+  });
+
+  it('protects browser reload only while the document is dirty', () => {
+    let dirty = false;
+    const handler = createBeforeUnloadHandler(() => dirty);
+    const cleanEvent = new Event('beforeunload', { cancelable: true }) as BeforeUnloadEvent;
+    handler(cleanEvent);
+    expect(cleanEvent.defaultPrevented).toBe(false);
+    dirty = true;
+    const dirtyEvent = new Event('beforeunload', { cancelable: true }) as BeforeUnloadEvent;
+    handler(dirtyEvent);
+    expect(dirtyEvent.defaultPrevented).toBe(true);
+  });
+});
diff --git a/packages/ui/__tests__/history.test.ts b/packages/ui/__tests__/history.test.ts
index fe4615d..cbbf28e 100644
--- a/packages/ui/__tests__/history.test.ts
+++ b/packages/ui/__tests__/history.test.ts
@@ -5,7 +5,10 @@ import { useDocumentStore } from '../src/stores/document';
 import { useHistoryStore } from '../src/stores/history';
 
 describe('document and command history integration', () => {
-  beforeEach(() => setActivePinia(createPinia()));
+  beforeEach(() => {
+    localStorage.clear();
+    setActivePinia(createPinia());
+  });
 
   it('adds, undoes and redoes a state in the visible document', () => {
     const doc = useDocumentStore();
@@ -41,4 +44,21 @@ describe('document and command history integration', () => {
     expect(doc.markSaved(obsolete, 'wrong.jff')).toBe(false);
     expect(doc.fileName).toBeNull();
   });
+
+  it('restores an unsaved recovery draft and exposes a Resume path', () => {
+    const first = useDocumentStore();
+    const history = useHistoryStore();
+    first.newDocument('fa');
+    history.dispatch(new AddStateCommand({ id: 'recovered', name: 'saved from crash', x: 1, y: 2, isInitial: true, isFinal: false }));
+
+    setActivePinia(createPinia());
+    const restored = useDocumentStore();
+    expect(restored.restoreRecoveryDraft()).toBe(true);
+    expect(restored.isDirty).toBe(true);
+    expect(restored.canResume).toBe(true);
+    expect(restored.currentView).toBe('home');
+    restored.resume();
+    expect(restored.currentView).toBe('editor');
+    expect(restored.automaton.states[0]?.name).toBe('saved from crash');
+  });
 });
diff --git a/packages/ui/src/components/HomePage.vue b/packages/ui/src/components/HomePage.vue
index abe722d..271058e 100644
--- a/packages/ui/src/components/HomePage.vue
+++ b/packages/ui/src/components/HomePage.vue
@@ -5,9 +5,12 @@ import { Workflow, Layers, Cpu, FolderOpen } from '@lucide/vue';
 import ThemeToggle from './ThemeToggle.vue';
 import logoFull from '../assets/logo.png';
 
+defineProps<{ canResume?: boolean }>();
+
 const emit = defineEmits<{
   (e: 'new', kind: AutomatonKind): void;
   (e: 'open'): void;
+  (e: 'resume'): void;
 }>();
 
 const automatonTypes: { kind: AutomatonKind; title: string; description: string; icon: Component }[] = [
@@ -70,6 +73,12 @@ const automatonTypes: { kind: AutomatonKind; title: string; description: string;
       </div>
 
       <section class="home__section">
+        <button v-if="canResume" class="home__open-btn" @click="emit('resume')">
+          <span class="home__open-body">
+            <span class="home__open-title">Resume current document</span>
+            <span class="home__open-desc">Return without replacing your work</span>
+          </span>
+        </button>
         <button class="home__open-btn" @click="emit('open')">
           <span class="home__open-icon">
             <FolderOpen :size="24" />
diff --git a/packages/ui/src/documentLifecycle.ts b/packages/ui/src/documentLifecycle.ts
new file mode 100644
index 0000000..a59013d
--- /dev/null
+++ b/packages/ui/src/documentLifecycle.ts
@@ -0,0 +1,36 @@
+export type DocumentLifecycleDecision = 'save' | 'discard' | 'cancel';
+
+export type ConfirmFn = (message: string) => boolean;
+
+export function requestDocumentLifecycleDecision(confirm: ConfirmFn): DocumentLifecycleDecision {
+  if (confirm('Save changes before continuing?')) return 'save';
+  if (confirm('Discard unsaved changes?')) return 'discard';
+  return 'cancel';
+}
+
+export async function runProtectedDocumentAction(options: {
+  isDirty: boolean;
+  save: () => Promise<boolean>;
+  action: () => void | Promise<void>;
+  confirm?: ConfirmFn;
+}): Promise<boolean> {
+  if (!options.isDirty) {
+    await options.action();
+    return true;
+  }
+
+  const confirm = options.confirm ?? ((message: string) => window.confirm(message));
+  const decision = requestDocumentLifecycleDecision(confirm);
+  if (decision === 'cancel') return false;
+  if (decision === 'save' && !(await options.save())) return false;
+  await options.action();
+  return true;
+}
+
+export function createBeforeUnloadHandler(isDirty: () => boolean) {
+  return (event: BeforeUnloadEvent) => {
+    if (!isDirty()) return;
+    event.preventDefault();
+    event.returnValue = '';
+  };
+}
diff --git a/packages/ui/src/index.ts b/packages/ui/src/index.ts
index d55c872..4d3e02e 100644
--- a/packages/ui/src/index.ts
+++ b/packages/ui/src/index.ts
@@ -18,3 +18,5 @@ export { saveDocumentKey, type SaveDocumentFn } from './injectionKeys';
 
 export { STATE_RADIUS, TRANSITION_HIT_TOLERANCE, SELF_LOOP_RADIUS, SELF_LOOP_OFFSET } from './constants';
 export { isEditableKeyTarget, shouldHandleGraphKey } from './keyboard';
+export { createBeforeUnloadHandler, requestDocumentLifecycleDecision, runProtectedDocumentAction } from './documentLifecycle';
+export type { DocumentLifecycleDecision, ConfirmFn } from './documentLifecycle';
diff --git a/packages/ui/src/injectionKeys.ts b/packages/ui/src/injectionKeys.ts
index 41e580f..3e40753 100644
--- a/packages/ui/src/injectionKeys.ts
+++ b/packages/ui/src/injectionKeys.ts
@@ -1,6 +1,6 @@
 import type { InjectionKey } from 'vue';
 
-export type SaveDocumentFn = () => Promise<void>;
+export type SaveDocumentFn = () => Promise<boolean>;
 
 /** Host app provides this so the editor toolbar can save .jff (e.g. desktop). */
 export const saveDocumentKey: InjectionKey<SaveDocumentFn> = Symbol('jautoSaveDocument');
diff --git a/packages/ui/src/stores/document.ts b/packages/ui/src/stores/document.ts
index 2d21008..e056d2a 100644
--- a/packages/ui/src/stores/document.ts
+++ b/packages/ui/src/stores/document.ts
@@ -23,6 +23,7 @@ export interface DocumentRevisionToken {
 }
 
 export const useDocumentStore = defineStore('document', () => {
+  const recoveryKey = 'jauto:recovery-draft:v1';
   const currentView = ref<AppView>('home');
   const automaton = ref<AnyAutomaton>(createEmptyAutomaton('fa'));
   const fileName = ref<string | null>(null);
@@ -40,16 +41,38 @@ export const useDocumentStore = defineStore('document', () => {
 
   const automatonKind = computed<AutomatonKind>(() => automaton.value.kind);
   const isDirty = computed(() => revision.value !== savedRevision.value);
+  const canResume = computed(() => automaton.value.states.length > 0 || isDirty.value || fileName.value !== null);
+
+  function recoveryStorage(): Storage | null {
+    try {
+      return typeof localStorage === 'undefined' ? null : localStorage;
+    } catch {
+      return null;
+    }
+  }
+
+  function persistRecoveryDraft() {
+    const storage = recoveryStorage();
+    if (!storage) return;
+    storage.setItem(recoveryKey, JSON.stringify({ automaton: automaton.value, fileName: fileName.value }));
+  }
+
+  function clearRecoveryDraft() {
+    recoveryStorage()?.removeItem(recoveryKey);
+  }
 
   function setAutomaton(newAutomaton: AnyAutomaton): number {
     automaton.value = newAutomaton;
     revision.value = ++nextRevision;
+    persistRecoveryDraft();
     return revision.value;
   }
 
   function restoreAutomaton(newAutomaton: AnyAutomaton, restoredRevision: number) {
     automaton.value = newAutomaton;
     revision.value = restoredRevision;
+    if (isDirty.value) persistRecoveryDraft();
+    else clearRecoveryDraft();
   }
 
   function previewAutomaton(newAutomaton: AnyAutomaton) {
@@ -68,6 +91,7 @@ export const useDocumentStore = defineStore('document', () => {
     automaton.value = newAutomaton;
     fileName.value = name;
     resetIdentity();
+    clearRecoveryDraft();
     selectedElement.value = null;
     currentView.value = 'editor';
   }
@@ -77,6 +101,7 @@ export const useDocumentStore = defineStore('document', () => {
     automaton.value = createEmptyAutomaton(kind);
     fileName.value = null;
     resetIdentity();
+    clearRecoveryDraft();
     selectedElement.value = null;
     currentView.value = 'editor';
   }
@@ -85,6 +110,29 @@ export const useDocumentStore = defineStore('document', () => {
     currentView.value = 'home';
   }
 
+  function resume() {
+    if (canResume.value) currentView.value = 'editor';
+  }
+
+  function restoreRecoveryDraft(): boolean {
+    const raw = recoveryStorage()?.getItem(recoveryKey);
+    if (!raw) return false;
+    try {
+      const parsed = JSON.parse(raw) as { automaton?: AnyAutomaton; fileName?: string | null };
+      if (!parsed.automaton || !['fa', 'pda', 'turing'].includes(parsed.automaton.kind)) return false;
+      if (!Array.isArray(parsed.automaton.states) || !Array.isArray(parsed.automaton.transitions)) return false;
+      automaton.value = parsed.automaton;
+      fileName.value = parsed.fileName ?? null;
+      resetIdentity();
+      revision.value = ++nextRevision;
+      currentView.value = 'home';
+      return true;
+    } catch {
+      clearRecoveryDraft();
+      return false;
+    }
+  }
+
   function select(element: SelectedElement) {
     selectedElement.value = element;
   }
@@ -121,6 +169,8 @@ export const useDocumentStore = defineStore('document', () => {
     if (token.documentId !== documentId.value) return false;
     savedRevision.value = token.revision;
     if (name) fileName.value = name;
+    if (isDirty.value) persistRecoveryDraft();
+    else clearRecoveryDraft();
     return true;
   }
 
@@ -132,6 +182,7 @@ export const useDocumentStore = defineStore('document', () => {
     revision,
     savedRevision,
     isDirty,
+    canResume,
     importWarnings,
     selectedElement,
     inspectorFocusTarget,
@@ -144,6 +195,9 @@ export const useDocumentStore = defineStore('document', () => {
     loadAutomaton,
     newDocument,
     goHome,
+    resume,
+    restoreRecoveryDraft,
+    clearRecoveryDraft,
     rename,
     select,
     requestInspectorFocus,

From 8319d6b77cbcb5a9b336965f9677fb9f2aa24660 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:11:42 -0300
Subject: [PATCH 13/43] feat(file-io): preserve paths and distinguish save as

---
 ACTION_PLAN.md                                |  7 ++--
 apps/desktop/src-tauri/src/lib.rs             | 40 ++++++++++++++++---
 apps/desktop/src/renderer/src/App.vue         | 10 ++---
 .../src/renderer/src/DesktopAppHeader.vue     | 28 +++++++++----
 .../src/renderer/src/DesktopFileService.ts    | 10 ++---
 apps/web/src/App.vue                          |  8 ++--
 apps/web/src/AppHeader.vue                    | 20 ++++++----
 .../file-io/__tests__/file-service.test.ts    | 11 ++---
 packages/file-io/src/file-service.ts          |  8 +++-
 packages/file-io/src/index.ts                 |  2 +-
 packages/file-io/src/open.ts                  |  3 +-
 packages/file-io/src/save.ts                  |  6 ++-
 packages/file-io/src/web-file-service.ts      |  8 ++--
 packages/ui/__tests__/history.test.ts         | 12 +++++-
 packages/ui/src/stores/document.ts            | 14 +++++--
 15 files changed, 129 insertions(+), 58 deletions(-)

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index 3babced..4952835 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -109,9 +109,9 @@ No source or configuration files were changed during the audit. Native installer
 - [x] Add recoverable drafts, reload/close protection, and a Resume path from Home.
 - [x] Track document identity, current revision, and saved revision rather than a manually toggled dirty flag.
 - [x] Bind asynchronous save completion to the document revision actually saved.
-- [ ] Preserve desktop paths and actual chosen filenames; distinguish Save from Save As.
-- [ ] Handle cancellation, false save results, and errors without clearing unsaved state.
-- [ ] Display actionable open/save/export errors instead of relying on console output.
+- [x] Preserve desktop paths and actual chosen filenames; distinguish Save from Save As.
+- [x] Handle cancellation, false save results, and errors without clearing unsaved state.
+- [x] Display actionable open/save/export errors instead of relying on console output.
 - [ ] Resolve inspector drafts consistently before saving, starting simulation, changing selection, or undoing.
 - [ ] Make undo restore exact graph structure and order; test undo back to the saved revision.
 
@@ -252,5 +252,6 @@ Before calling the automata milestone dependable:
 - Transition-semantics regressions: implemented complete FA/PDA string reads, prefix-aware NFA branching, PDA stack-string operations with JFLAP's initial `Z`, and idempotent initial acceptance. Added regressions for string labels, epsilon cycles, nondeterminism, malformed documents, zero-step/resource limits, and vendor PDA languages. Validation: 41 core, 35 simulator, 11 UI, and 46 JFF tests passed; workspace type checks and lint passed.
 - Revision-based document state: replaced the manual dirty flag with document identity plus current/saved revisions, preserved revisions across undo/redo, kept drag previews outside history, and bound asynchronous save completion to the captured document revision. Validation: 12 UI tests passed; workspace type checks and lint passed.
 - Protected document lifecycle: routed New/Open through a shared Save/Discard/Cancel decision, retained work when saving fails or the user cancels, added browser reload/close protection, persisted unsaved recovery drafts, and exposed Resume on Home. Home navigation retains the current document rather than discarding it. Validation: 19 UI tests passed; workspace type checks and lint passed.
+- File identity and save behavior: carried desktop paths through open/save, made Save overwrite the current path while Save As opens the chooser, adopted the filename actually selected, retained dirty state on cancellation/failure, and surfaced save/export errors to users. Validation: 4 file-service and 20 UI tests passed; Rust check/format, workspace type checks and lint passed.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/apps/desktop/src-tauri/src/lib.rs b/apps/desktop/src-tauri/src/lib.rs
index 7e51708..26231d4 100644
--- a/apps/desktop/src-tauri/src/lib.rs
+++ b/apps/desktop/src-tauri/src/lib.rs
@@ -12,6 +12,12 @@ struct FileOpenResult {
     path: String,
 }
 
+#[derive(Serialize)]
+struct FileSaveResult {
+    name: String,
+    path: String,
+}
+
 #[tauri::command]
 async fn open_file() -> Result<Option<FileOpenResult>, String> {
     let Some(file) = rfd::AsyncFileDialog::new()
@@ -33,7 +39,20 @@ async fn open_file() -> Result<Option<FileOpenResult>, String> {
 }
 
 #[tauri::command]
-async fn save_file(content: String, default_name: String) -> Result<Option<String>, String> {
+async fn save_file(
+    content: String,
+    default_name: String,
+    current_path: Option<String>,
+) -> Result<Option<FileSaveResult>, String> {
+    if let Some(current_path) = current_path {
+        let path = std::path::PathBuf::from(current_path);
+        fs::write(&path, content).map_err(|err| err.to_string())?;
+        return Ok(Some(FileSaveResult {
+            name: file_name(&path, &default_name),
+            path: path.to_string_lossy().into_owned(),
+        }));
+    }
+
     let Some(file) = rfd::AsyncFileDialog::new()
         .add_filter("JFLAP Files", &["jff"])
         .set_file_name(&default_name)
@@ -45,7 +64,10 @@ async fn save_file(content: String, default_name: String) -> Result<Option<Strin
 
     let path = file.path().to_path_buf();
     fs::write(&path, content).map_err(|err| err.to_string())?;
-    Ok(Some(file_name(&path, &default_name)))
+    Ok(Some(FileSaveResult {
+        name: file_name(&path, &default_name),
+        path: path.to_string_lossy().into_owned(),
+    }))
 }
 
 #[tauri::command]
@@ -73,8 +95,13 @@ fn file_name(path: &Path, fallback: &str) -> String {
 fn build_menu(app: &mut tauri::App) -> tauri::Result<()> {
     let home = MenuItem::with_id(app, "menu:home", "Back to Home", true, Some("Alt+Left"))?;
     let new_fa = MenuItem::with_id(app, "menu:new-fa", "New DFA/NFA", true, Some("CmdOrCtrl+N"))?;
-    let new_pda =
-        MenuItem::with_id(app, "menu:new-pda", "New PDA", true, Some("CmdOrCtrl+Shift+N"))?;
+    let new_pda = MenuItem::with_id(
+        app,
+        "menu:new-pda",
+        "New PDA",
+        true,
+        Some("CmdOrCtrl+Shift+N"),
+    )?;
     let new_tm = MenuItem::with_id(
         app,
         "menu:new-tm",
@@ -83,8 +110,9 @@ fn build_menu(app: &mut tauri::App) -> tauri::Result<()> {
         Some("CmdOrCtrl+Alt+N"),
     )?;
     let open = MenuItem::with_id(app, "menu:open", "Open...", true, Some("CmdOrCtrl+O"))?;
-    let save = MenuItem::with_id(app, "menu:save", "Save As...", true, Some("CmdOrCtrl+S"))?;
-    let export_png = MenuItem::with_id(app, "menu:export-png", "Export PNG...", true, None::<&str>)?;
+    let save = MenuItem::with_id(app, "menu:save", "Save", true, Some("CmdOrCtrl+S"))?;
+    let export_png =
+        MenuItem::with_id(app, "menu:export-png", "Export PNG...", true, None::<&str>)?;
     let undo = MenuItem::with_id(app, "menu:undo", "Undo", true, Some("CmdOrCtrl+Z"))?;
     let redo = MenuItem::with_id(app, "menu:redo", "Redo", true, Some("CmdOrCtrl+Shift+Z"))?;
     let reload = MenuItem::with_id(app, "menu:reload", "Reload", true, Some("CmdOrCtrl+R"))?;
diff --git a/apps/desktop/src/renderer/src/App.vue b/apps/desktop/src/renderer/src/App.vue
index 8300e69..56a4377 100644
--- a/apps/desktop/src/renderer/src/App.vue
+++ b/apps/desktop/src/renderer/src/App.vue
@@ -29,12 +29,12 @@ async function saveCurrentDocument(): Promise<boolean> {
   try {
     const name = docStore.fileName ?? 'untitled.jff';
     const token = docStore.createRevisionToken();
-    const saved = await saveAutomaton(fileService, docStore.automaton, name);
-    if (saved) {
-      docStore.markSaved(token, name);
+    const result = await saveAutomaton(fileService, docStore.automaton, name, docStore.filePath ?? undefined);
+    if (result) {
+      docStore.markSaved(token, result.name, result.path);
       updateTitle();
     }
-    return saved;
+    return result !== null;
   } catch (err) {
     window.alert(`Failed to save: ${err instanceof Error ? err.message : String(err)}`);
     return false;
@@ -61,7 +61,7 @@ async function handleOpen() {
     try {
       const result = await openAutomaton(fileService);
       if (result) {
-        docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
+        docStore.loadAutomaton(result.automaton, result.fileName, result.warnings, result.filePath);
         historyStore.clear();
         simStore.stop();
         updateTitle();
diff --git a/apps/desktop/src/renderer/src/DesktopAppHeader.vue b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
index bf51620..36d568c 100644
--- a/apps/desktop/src/renderer/src/DesktopAppHeader.vue
+++ b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
@@ -70,7 +70,7 @@ async function openFile() {
       try {
         const result = await openAutomaton(fileService);
         if (result) {
-          docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
+          docStore.loadAutomaton(result.automaton, result.fileName, result.warnings, result.filePath);
           historyStore.clear();
           simStore.stop();
         }
@@ -81,17 +81,26 @@ async function openFile() {
   });
 }
 
-async function persistToDisk(): Promise<boolean> {
+async function persistToDisk(saveAs = false): Promise<boolean> {
   const name = docStore.fileName ?? 'untitled.jff';
   const token = docStore.createRevisionToken();
-  const saved = await saveAutomaton(fileService, docStore.automaton, name);
-  if (saved) docStore.markSaved(token, name);
-  return saved;
+  const result = await saveAutomaton(
+    fileService,
+    docStore.automaton,
+    name,
+    saveAs ? undefined : docStore.filePath ?? undefined,
+  );
+  if (result) docStore.markSaved(token, result.name, result.path);
+  return result !== null;
 }
 
 async function saveFile() {
   closeMenu();
-  await onSaveClick();
+  try {
+    await persistToDisk(true);
+  } catch (err) {
+    window.alert(`Failed to save: ${err instanceof Error ? err.message : String(err)}`);
+  }
 }
 
 async function onSaveClick() {
@@ -100,7 +109,7 @@ async function onSaveClick() {
   try {
     await persistToDisk();
   } catch (err) {
-    console.error('Failed to save:', err);
+    window.alert(`Failed to save: ${err instanceof Error ? err.message : String(err)}`);
   } finally {
     savingFile.value = false;
   }
@@ -111,9 +120,12 @@ async function exportPNG() {
   const canvas = document.querySelector('canvas');
   if (!canvas) return;
   canvas.toBlob(async (blob) => {
-    if (blob) {
+    try {
+      if (!blob) throw new Error('The canvas could not be encoded as PNG');
       const name = (docStore.fileName ?? 'automaton').replace(/\.jff$/, '') + '.png';
       await fileService.exportImage(blob, name);
+    } catch (err) {
+      window.alert(`Failed to export PNG: ${err instanceof Error ? err.message : String(err)}`);
     }
   });
 }
diff --git a/apps/desktop/src/renderer/src/DesktopFileService.ts b/apps/desktop/src/renderer/src/DesktopFileService.ts
index 734a5dc..e224077 100644
--- a/apps/desktop/src/renderer/src/DesktopFileService.ts
+++ b/apps/desktop/src/renderer/src/DesktopFileService.ts
@@ -1,4 +1,4 @@
-import type { FileService, FileOpenResult } from '@jauto/file-io';
+import type { FileService, FileOpenResult, FileSaveResult } from '@jauto/file-io';
 import { invoke } from '@tauri-apps/api/core';
 
 type NativeOpenResult = {
@@ -11,15 +11,15 @@ export class DesktopFileService implements FileService {
   async openFile(): Promise<FileOpenResult | null> {
     const result = await invoke<NativeOpenResult | null>('open_file');
     if (!result) return null;
-    return { name: result.name, content: result.content };
+    return { name: result.name, content: result.content, path: result.path };
   }
 
-  async saveFile(name: string, content: string): Promise<boolean> {
-    const result = await invoke<string | null>('save_file', {
+  async saveFile(name: string, content: string, path?: string): Promise<FileSaveResult | null> {
+    return invoke<FileSaveResult | null>('save_file', {
       content,
       defaultName: name,
+      currentPath: path ?? null,
     });
-    return result !== null;
   }
 
   async exportImage(blob: Blob, name: string): Promise<boolean> {
diff --git a/apps/web/src/App.vue b/apps/web/src/App.vue
index 983d318..962bdda 100644
--- a/apps/web/src/App.vue
+++ b/apps/web/src/App.vue
@@ -21,9 +21,9 @@ async function saveCurrentDocument(): Promise<boolean> {
   try {
     const name = docStore.fileName ?? 'untitled.jff';
     const token = docStore.createRevisionToken();
-    const saved = await saveAutomaton(fileService, docStore.automaton, name);
-    if (saved) docStore.markSaved(token, name);
-    return saved;
+    const result = await saveAutomaton(fileService, docStore.automaton, name);
+    if (result) docStore.markSaved(token, result.name, result.path);
+    return result !== null;
   } catch (error) {
     alert(`Failed to save: ${error instanceof Error ? error.message : String(error)}`);
     return false;
@@ -50,7 +50,7 @@ async function handleOpen() {
       try {
         const result = await openAutomaton(fileService);
         if (result) {
-          docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
+          docStore.loadAutomaton(result.automaton, result.fileName, result.warnings, result.filePath);
           historyStore.clear();
           simStore.stop();
         }
diff --git a/apps/web/src/AppHeader.vue b/apps/web/src/AppHeader.vue
index f9805f5..eb2a6a9 100644
--- a/apps/web/src/AppHeader.vue
+++ b/apps/web/src/AppHeader.vue
@@ -61,7 +61,7 @@ async function openFile() {
       try {
         const result = await openAutomaton(fileService);
         if (result) {
-          docStore.loadAutomaton(result.automaton, result.fileName, result.warnings);
+          docStore.loadAutomaton(result.automaton, result.fileName, result.warnings, result.filePath);
           historyStore.clear();
           simStore.stop();
         }
@@ -72,18 +72,18 @@ async function openFile() {
   });
 }
 
-async function persistToDisk(): Promise<boolean> {
+async function persistToDisk(_saveAs = false): Promise<boolean> {
   const name = docStore.fileName ?? 'untitled.jff';
   const token = docStore.createRevisionToken();
-  const saved = await saveAutomaton(fileService, docStore.automaton, name);
-  if (saved) docStore.markSaved(token, name);
-  return saved;
+  const result = await saveAutomaton(fileService, docStore.automaton, name);
+  if (result) docStore.markSaved(token, result.name, result.path);
+  return result !== null;
 }
 
 async function saveFile() {
   closeMenu();
   try {
-    await persistToDisk();
+    await persistToDisk(true);
   } catch (err) {
     alert(`Failed to save: ${err instanceof Error ? err.message : String(err)}`);
   }
@@ -106,9 +106,13 @@ async function exportPNG() {
   const canvas = document.querySelector('canvas');
   if (!canvas) return;
   canvas.toBlob(async (blob) => {
-    if (blob) {
+    try {
+      if (!blob) throw new Error('The canvas could not be encoded as PNG');
       const name = (docStore.fileName ?? 'automaton').replace(/\.jff$/, '') + '.png';
-      await fileService.exportImage(blob, name);
+      const exported = await fileService.exportImage(blob, name);
+      if (!exported) throw new Error('The download could not be started');
+    } catch (err) {
+      alert(`Failed to export PNG: ${err instanceof Error ? err.message : String(err)}`);
     }
   });
 }
diff --git a/packages/file-io/__tests__/file-service.test.ts b/packages/file-io/__tests__/file-service.test.ts
index bf8c7c9..4680e08 100644
--- a/packages/file-io/__tests__/file-service.test.ts
+++ b/packages/file-io/__tests__/file-service.test.ts
@@ -5,15 +5,16 @@ import { saveAutomaton } from '../src/save';
 import type { FileService } from '../src/file-service';
 
 function service(): FileService {
-  return { openFile: vi.fn().mockResolvedValue(null), saveFile: vi.fn().mockResolvedValue(true), exportImage: vi.fn().mockResolvedValue(true) };
+  return { openFile: vi.fn().mockResolvedValue(null), saveFile: vi.fn().mockResolvedValue({ name: 'example.jff' }), exportImage: vi.fn().mockResolvedValue(true) };
 }
 
 describe('file service boundary', () => {
   it('carries import diagnostics through the platform boundary', async () => {
     const files = service();
-    vi.mocked(files.openFile).mockResolvedValue({ name: 'draft.jff', content: '<structure><type>fa</type><automaton/></structure>' });
+    vi.mocked(files.openFile).mockResolvedValue({ name: 'draft.jff', path: 'C:/draft.jff', content: '<structure><type>fa</type><automaton/></structure>' });
     const result = await openAutomaton(files);
     expect(result?.warnings[0]?.message).toContain('initial state');
+    expect(result?.filePath).toBe('C:/draft.jff');
   });
   it('keeps canceled opens distinct from parse failures', async () => {
     const files = service();
@@ -24,9 +25,9 @@ describe('file service boundary', () => {
 
   it('passes serialized content to the platform and retains cancellation', async () => {
     const files = service();
-    vi.mocked(files.saveFile).mockResolvedValue(false);
-    await expect(saveAutomaton(files, createEmptyAutomaton('fa'), 'example.jff')).resolves.toBe(false);
-    expect(files.saveFile).toHaveBeenCalledWith('example.jff', expect.stringContaining('<type>fa</type>'));
+    vi.mocked(files.saveFile).mockResolvedValue(null);
+    await expect(saveAutomaton(files, createEmptyAutomaton('fa'), 'example.jff', 'C:/example.jff')).resolves.toBeNull();
+    expect(files.saveFile).toHaveBeenCalledWith('example.jff', expect.stringContaining('<type>fa</type>'), 'C:/example.jff');
   });
 
   it('does not hide disk errors', async () => {
diff --git a/packages/file-io/src/file-service.ts b/packages/file-io/src/file-service.ts
index 5e409f6..183bc97 100644
--- a/packages/file-io/src/file-service.ts
+++ b/packages/file-io/src/file-service.ts
@@ -1,10 +1,16 @@
 export interface FileOpenResult {
   name: string;
   content: string;
+  path?: string;
+}
+
+export interface FileSaveResult {
+  name: string;
+  path?: string;
 }
 
 export interface FileService {
   openFile(): Promise<FileOpenResult | null>;
-  saveFile(name: string, content: string): Promise<boolean>;
+  saveFile(name: string, content: string, path?: string): Promise<FileSaveResult | null>;
   exportImage(blob: Blob, name: string): Promise<boolean>;
 }
diff --git a/packages/file-io/src/index.ts b/packages/file-io/src/index.ts
index ba1af9b..458aeeb 100644
--- a/packages/file-io/src/index.ts
+++ b/packages/file-io/src/index.ts
@@ -1,4 +1,4 @@
-export type { FileService, FileOpenResult } from './file-service';
+export type { FileService, FileOpenResult, FileSaveResult } from './file-service';
 export { openAutomaton, FileOpenError } from './open';
 export type { OpenResult } from './open';
 export { saveAutomaton } from './save';
diff --git a/packages/file-io/src/open.ts b/packages/file-io/src/open.ts
index d9481a7..b44c564 100644
--- a/packages/file-io/src/open.ts
+++ b/packages/file-io/src/open.ts
@@ -5,6 +5,7 @@ import type { FileService } from './file-service';
 export interface OpenResult {
   automaton: AnyAutomaton;
   fileName: string;
+  filePath?: string;
   warnings: readonly { message: string; context?: string }[];
 }
 
@@ -21,7 +22,7 @@ export async function openAutomaton(fileService: FileService): Promise<OpenResul
 
   try {
     const { automaton, warnings } = parseJFF(file.content);
-    return { automaton, fileName: file.name, warnings };
+    return { automaton, fileName: file.name, filePath: file.path, warnings };
   } catch (e) {
     if (e instanceof JFFParseError) {
       throw new FileOpenError(`Failed to parse file "${file.name}": ${e.message}`);
diff --git a/packages/file-io/src/save.ts b/packages/file-io/src/save.ts
index ab84632..b6c0c8a 100644
--- a/packages/file-io/src/save.ts
+++ b/packages/file-io/src/save.ts
@@ -1,12 +1,14 @@
 import type { AnyAutomaton } from '@jauto/core';
 import { serializeJFF } from '@jauto/jff';
 import type { FileService } from './file-service';
+import type { FileSaveResult } from './file-service';
 
 export async function saveAutomaton(
   fileService: FileService,
   automaton: AnyAutomaton,
   name: string,
-): Promise<boolean> {
+  path?: string,
+): Promise<FileSaveResult | null> {
   const xml = serializeJFF(automaton);
-  return fileService.saveFile(name, xml);
+  return fileService.saveFile(name, xml, path);
 }
diff --git a/packages/file-io/src/web-file-service.ts b/packages/file-io/src/web-file-service.ts
index 2fdb2b9..5a1d8d9 100644
--- a/packages/file-io/src/web-file-service.ts
+++ b/packages/file-io/src/web-file-service.ts
@@ -1,4 +1,4 @@
-import type { FileService, FileOpenResult } from './file-service';
+import type { FileService, FileOpenResult, FileSaveResult } from './file-service';
 
 export class WebFileService implements FileService {
   async openFile(): Promise<FileOpenResult | null> {
@@ -26,7 +26,7 @@ export class WebFileService implements FileService {
     });
   }
 
-  async saveFile(name: string, content: string): Promise<boolean> {
+  async saveFile(name: string, content: string): Promise<FileSaveResult | null> {
     try {
       const blob = new Blob([content], { type: 'application/xml' });
       const url = URL.createObjectURL(blob);
@@ -37,9 +37,9 @@ export class WebFileService implements FileService {
       a.click();
       document.body.removeChild(a);
       URL.revokeObjectURL(url);
-      return true;
+      return { name: a.download };
     } catch {
-      return false;
+      return null;
     }
   }
 
diff --git a/packages/ui/__tests__/history.test.ts b/packages/ui/__tests__/history.test.ts
index cbbf28e..13b6678 100644
--- a/packages/ui/__tests__/history.test.ts
+++ b/packages/ui/__tests__/history.test.ts
@@ -1,6 +1,6 @@
 import { beforeEach, describe, expect, it } from 'vitest';
 import { createPinia, setActivePinia } from 'pinia';
-import { AddStateCommand } from '@jauto/core';
+import { AddStateCommand, createEmptyAutomaton } from '@jauto/core';
 import { useDocumentStore } from '../src/stores/document';
 import { useHistoryStore } from '../src/stores/history';
 
@@ -61,4 +61,14 @@ describe('document and command history integration', () => {
     expect(restored.currentView).toBe('editor');
     expect(restored.automaton.states[0]?.name).toBe('saved from crash');
   });
+
+  it('preserves an opened path and adopts the actual Save As result', () => {
+    const doc = useDocumentStore();
+    doc.loadAutomaton(createEmptyAutomaton('fa'), 'opened.jff', [], 'C:/machines/opened.jff');
+    expect(doc.filePath).toBe('C:/machines/opened.jff');
+    const token = doc.createRevisionToken();
+    expect(doc.markSaved(token, 'chosen.jff', 'D:/exports/chosen.jff')).toBe(true);
+    expect(doc.fileName).toBe('chosen.jff');
+    expect(doc.filePath).toBe('D:/exports/chosen.jff');
+  });
 });
diff --git a/packages/ui/src/stores/document.ts b/packages/ui/src/stores/document.ts
index e056d2a..3ab0c42 100644
--- a/packages/ui/src/stores/document.ts
+++ b/packages/ui/src/stores/document.ts
@@ -27,6 +27,7 @@ export const useDocumentStore = defineStore('document', () => {
   const currentView = ref<AppView>('home');
   const automaton = ref<AnyAutomaton>(createEmptyAutomaton('fa'));
   const fileName = ref<string | null>(null);
+  const filePath = ref<string | null>(null);
   const documentId = ref(0);
   const revision = ref(0);
   const savedRevision = ref(0);
@@ -54,7 +55,7 @@ export const useDocumentStore = defineStore('document', () => {
   function persistRecoveryDraft() {
     const storage = recoveryStorage();
     if (!storage) return;
-    storage.setItem(recoveryKey, JSON.stringify({ automaton: automaton.value, fileName: fileName.value }));
+    storage.setItem(recoveryKey, JSON.stringify({ automaton: automaton.value, fileName: fileName.value, filePath: filePath.value }));
   }
 
   function clearRecoveryDraft() {
@@ -86,10 +87,11 @@ export const useDocumentStore = defineStore('document', () => {
     nextRevision = 0;
   }
 
-  function loadAutomaton(newAutomaton: AnyAutomaton, name: string | null = null, warnings: readonly { message: string }[] = []) {
+  function loadAutomaton(newAutomaton: AnyAutomaton, name: string | null = null, warnings: readonly { message: string }[] = [], path: string | null = null) {
     importWarnings.value = warnings;
     automaton.value = newAutomaton;
     fileName.value = name;
+    filePath.value = path;
     resetIdentity();
     clearRecoveryDraft();
     selectedElement.value = null;
@@ -100,6 +102,7 @@ export const useDocumentStore = defineStore('document', () => {
     importWarnings.value = [];
     automaton.value = createEmptyAutomaton(kind);
     fileName.value = null;
+    filePath.value = null;
     resetIdentity();
     clearRecoveryDraft();
     selectedElement.value = null;
@@ -118,11 +121,12 @@ export const useDocumentStore = defineStore('document', () => {
     const raw = recoveryStorage()?.getItem(recoveryKey);
     if (!raw) return false;
     try {
-      const parsed = JSON.parse(raw) as { automaton?: AnyAutomaton; fileName?: string | null };
+      const parsed = JSON.parse(raw) as { automaton?: AnyAutomaton; fileName?: string | null; filePath?: string | null };
       if (!parsed.automaton || !['fa', 'pda', 'turing'].includes(parsed.automaton.kind)) return false;
       if (!Array.isArray(parsed.automaton.states) || !Array.isArray(parsed.automaton.transitions)) return false;
       automaton.value = parsed.automaton;
       fileName.value = parsed.fileName ?? null;
+      filePath.value = parsed.filePath ?? null;
       resetIdentity();
       revision.value = ++nextRevision;
       currentView.value = 'home';
@@ -165,10 +169,11 @@ export const useDocumentStore = defineStore('document', () => {
     return { documentId: documentId.value, revision: revision.value };
   }
 
-  function markSaved(token: DocumentRevisionToken, name?: string): boolean {
+  function markSaved(token: DocumentRevisionToken, name?: string, path?: string): boolean {
     if (token.documentId !== documentId.value) return false;
     savedRevision.value = token.revision;
     if (name) fileName.value = name;
+    if (path) filePath.value = path;
     if (isDirty.value) persistRecoveryDraft();
     else clearRecoveryDraft();
     return true;
@@ -178,6 +183,7 @@ export const useDocumentStore = defineStore('document', () => {
     currentView,
     automaton,
     fileName,
+    filePath,
     documentId,
     revision,
     savedRevision,

From 0b0a69cddeca11160220f020500b670fdea8c358 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:12:37 -0300
Subject: [PATCH 14/43] fix(core): restore graph order on undo

---
 ACTION_PLAN.md                                |  3 ++-
 packages/core/__tests__/commands.test.ts      | 15 +++++++++++++
 packages/core/src/commands/remove-state.ts    | 21 ++++++++++++++-----
 .../core/src/commands/remove-transition.ts    | 10 +++++++--
 4 files changed, 41 insertions(+), 8 deletions(-)

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index 4952835..dfd21ac 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -113,7 +113,7 @@ No source or configuration files were changed during the audit. Native installer
 - [x] Handle cancellation, false save results, and errors without clearing unsaved state.
 - [x] Display actionable open/save/export errors instead of relying on console output.
 - [ ] Resolve inspector drafts consistently before saving, starting simulation, changing selection, or undoing.
-- [ ] Make undo restore exact graph structure and order; test undo back to the saved revision.
+- [x] Make undo restore exact graph structure and order; test undo back to the saved revision.
 
 **Acceptance criteria:** Typing never deletes graph elements. Canceled or failed operations retain work. Save indicators accurately describe the saved revision, and pending edits cannot disappear silently.
 
@@ -253,5 +253,6 @@ Before calling the automata milestone dependable:
 - Revision-based document state: replaced the manual dirty flag with document identity plus current/saved revisions, preserved revisions across undo/redo, kept drag previews outside history, and bound asynchronous save completion to the captured document revision. Validation: 12 UI tests passed; workspace type checks and lint passed.
 - Protected document lifecycle: routed New/Open through a shared Save/Discard/Cancel decision, retained work when saving fails or the user cancels, added browser reload/close protection, persisted unsaved recovery drafts, and exposed Resume on Home. Home navigation retains the current document rather than discarding it. Validation: 19 UI tests passed; workspace type checks and lint passed.
 - File identity and save behavior: carried desktop paths through open/save, made Save overwrite the current path while Save As opens the chooser, adopted the filename actually selected, retained dirty state on cancellation/failure, and surfaced save/export errors to users. Validation: 4 file-service and 20 UI tests passed; Rust check/format, workspace type checks and lint passed.
+- Exact structural undo: removal commands now capture and restore original state and transition indices, including connected edges, while revision history returns to the saved revision. Validation: 43 core tests passed; core type checks and lint passed.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/packages/core/__tests__/commands.test.ts b/packages/core/__tests__/commands.test.ts
index 52ada33..3599303 100644
--- a/packages/core/__tests__/commands.test.ts
+++ b/packages/core/__tests__/commands.test.ts
@@ -113,6 +113,14 @@ describe('RemoveStateCommand', () => {
     expect(restored.states).toHaveLength(2);
     expect(restored.transitions).toHaveLength(1);
   });
+
+  it('restores the exact state and transition ordering', () => {
+    const states = [s('0'), s('1'), s('2')];
+    const transitions = [t('t0', '0', '1', 'a'), t('t1', '1', '2', 'b'), t('t2', '2', '0', 'c')];
+    const fa: FiniteAutomaton = { kind: 'fa', states, transitions };
+    const command = new RemoveStateCommand(states[1]!, [transitions[0]!, transitions[1]!]);
+    expect(command.undo(command.execute(fa))).toEqual(fa);
+  });
 });
 
 describe('MoveStateCommand', () => {
@@ -153,6 +161,13 @@ describe('AddTransitionCommand / RemoveTransitionCommand', () => {
     const back = cmd.undo(after);
     expect(back.transitions).toHaveLength(1);
   });
+
+  it('restores a removed transition at its original index', () => {
+    const transitions = [t('t0', '0', '1', 'a'), t('t1', '0', '1', 'b'), t('t2', '0', '1', 'c')];
+    const fa: FiniteAutomaton = { kind: 'fa', states: [s('0'), s('1')], transitions };
+    const command = new RemoveTransitionCommand(transitions[1]!);
+    expect(command.undo(command.execute(fa))).toEqual(fa);
+  });
 });
 
 describe('BatchCommand', () => {
diff --git a/packages/core/src/commands/remove-state.ts b/packages/core/src/commands/remove-state.ts
index 0cbdac6..d9f4e10 100644
--- a/packages/core/src/commands/remove-state.ts
+++ b/packages/core/src/commands/remove-state.ts
@@ -1,10 +1,12 @@
 import type { AnyAutomaton, AutomatonState, AnyTransition } from '../types';
 import type { Command } from './types';
-import { addState, removeState, addTransition } from '../graph';
+import { removeState } from '../graph';
 
 export class RemoveStateCommand implements Command {
   readonly label: string;
   private removedTransitions: readonly AnyTransition[] = [];
+  private stateIndex = -1;
+  private transitionIndices = new Map<string, number>();
 
   constructor(
     private readonly state: AutomatonState,
@@ -15,14 +17,23 @@ export class RemoveStateCommand implements Command {
   }
 
   execute(automaton: AnyAutomaton): AnyAutomaton {
+    if (this.stateIndex < 0) {
+      this.stateIndex = automaton.states.findIndex((state) => state.id === this.state.id);
+      this.transitionIndices = new Map(
+        automaton.transitions.map((transition, index) => [transition.id, index]),
+      );
+    }
     return removeState(automaton, this.state.id) as AnyAutomaton;
   }
 
   undo(automaton: AnyAutomaton): AnyAutomaton {
-    let result = addState(automaton, this.state) as AnyAutomaton;
-    for (const t of this.removedTransitions) {
-      result = addTransition(result, t) as AnyAutomaton;
+    const states = [...automaton.states];
+    states.splice(Math.max(0, this.stateIndex), 0, this.state);
+    const transitions = [...automaton.transitions];
+    for (const transition of this.removedTransitions) {
+      const index = this.transitionIndices.get(transition.id) ?? transitions.length;
+      transitions.splice(Math.min(index, transitions.length), 0, transition);
     }
-    return result;
+    return { ...automaton, states, transitions } as AnyAutomaton;
   }
 }
diff --git a/packages/core/src/commands/remove-transition.ts b/packages/core/src/commands/remove-transition.ts
index 411cfca..ec9833c 100644
--- a/packages/core/src/commands/remove-transition.ts
+++ b/packages/core/src/commands/remove-transition.ts
@@ -1,19 +1,25 @@
 import type { AnyAutomaton, AnyTransition } from '../types';
 import type { Command } from './types';
-import { addTransition, removeTransition } from '../graph';
+import { removeTransition } from '../graph';
 
 export class RemoveTransitionCommand implements Command {
   readonly label: string;
+  private transitionIndex = -1;
 
   constructor(private readonly transition: AnyTransition) {
     this.label = `Remove transition ${transition.from} → ${transition.to}`;
   }
 
   execute(automaton: AnyAutomaton): AnyAutomaton {
+    if (this.transitionIndex < 0) {
+      this.transitionIndex = automaton.transitions.findIndex((item) => item.id === this.transition.id);
+    }
     return removeTransition(automaton, this.transition.id) as AnyAutomaton;
   }
 
   undo(automaton: AnyAutomaton): AnyAutomaton {
-    return addTransition(automaton, this.transition) as AnyAutomaton;
+    const transitions = [...automaton.transitions];
+    transitions.splice(Math.max(0, this.transitionIndex), 0, this.transition);
+    return { ...automaton, transitions } as AnyAutomaton;
   }
 }

From 90fca1273c6bee7f70dfe5cb325be2bb985cc6e8 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:13:51 -0300
Subject: [PATCH 15/43] fix(ui): flush inspector drafts before document actions

---
 ACTION_PLAN.md                                     |  3 ++-
 apps/desktop/src/renderer/src/App.vue              |  3 +++
 apps/desktop/src/renderer/src/DesktopAppHeader.vue |  3 +++
 apps/web/src/App.vue                               |  3 +++
 apps/web/src/AppHeader.vue                         |  3 +++
 packages/ui/__tests__/history.test.ts              | 10 +++++++++-
 packages/ui/src/components/InspectorPanel.vue      |  5 ++++-
 packages/ui/src/components/SimulationControls.vue  |  1 +
 packages/ui/src/stores/document.ts                 | 13 +++++++++++++
 packages/ui/src/stores/history.ts                  |  2 ++
 10 files changed, 43 insertions(+), 3 deletions(-)

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index dfd21ac..f590235 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -112,7 +112,7 @@ No source or configuration files were changed during the audit. Native installer
 - [x] Preserve desktop paths and actual chosen filenames; distinguish Save from Save As.
 - [x] Handle cancellation, false save results, and errors without clearing unsaved state.
 - [x] Display actionable open/save/export errors instead of relying on console output.
-- [ ] Resolve inspector drafts consistently before saving, starting simulation, changing selection, or undoing.
+- [x] Resolve inspector drafts consistently before saving, starting simulation, changing selection, or undoing.
 - [x] Make undo restore exact graph structure and order; test undo back to the saved revision.
 
 **Acceptance criteria:** Typing never deletes graph elements. Canceled or failed operations retain work. Save indicators accurately describe the saved revision, and pending edits cannot disappear silently.
@@ -254,5 +254,6 @@ Before calling the automata milestone dependable:
 - Protected document lifecycle: routed New/Open through a shared Save/Discard/Cancel decision, retained work when saving fails or the user cancels, added browser reload/close protection, persisted unsaved recovery drafts, and exposed Resume on Home. Home navigation retains the current document rather than discarding it. Validation: 19 UI tests passed; workspace type checks and lint passed.
 - File identity and save behavior: carried desktop paths through open/save, made Save overwrite the current path while Save As opens the chooser, adopted the filename actually selected, retained dirty state on cancellation/failure, and surfaced save/export errors to users. Validation: 4 file-service and 20 UI tests passed; Rust check/format, workspace type checks and lint passed.
 - Exact structural undo: removal commands now capture and restore original state and transition indices, including connected edges, while revision history returns to the saved revision. Validation: 43 core tests passed; core type checks and lint passed.
+- Inspector transaction boundary: registered the active inspector draft with the document store and flush it before selection changes, save, New/Open, simulation start, undo, and redo. Validation: 21 UI tests passed; workspace type checks and lint passed.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/apps/desktop/src/renderer/src/App.vue b/apps/desktop/src/renderer/src/App.vue
index 56a4377..ad85a75 100644
--- a/apps/desktop/src/renderer/src/App.vue
+++ b/apps/desktop/src/renderer/src/App.vue
@@ -27,6 +27,7 @@ onBeforeUnmount(() => window.removeEventListener('beforeunload', beforeUnload));
 
 async function saveCurrentDocument(): Promise<boolean> {
   try {
+    docStore.flushInspectorEdits();
     const name = docStore.fileName ?? 'untitled.jff';
     const token = docStore.createRevisionToken();
     const result = await saveAutomaton(fileService, docStore.automaton, name, docStore.filePath ?? undefined);
@@ -48,6 +49,7 @@ async function replaceDocument(action: () => void | Promise<void>) {
 }
 
 async function handleNew(kind: AutomatonKind) {
+  docStore.flushInspectorEdits();
   await replaceDocument(() => {
     docStore.newDocument(kind);
     historyStore.clear();
@@ -57,6 +59,7 @@ async function handleNew(kind: AutomatonKind) {
 }
 
 async function handleOpen() {
+  docStore.flushInspectorEdits();
   await replaceDocument(async () => {
     try {
       const result = await openAutomaton(fileService);
diff --git a/apps/desktop/src/renderer/src/DesktopAppHeader.vue b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
index 36d568c..093e57c 100644
--- a/apps/desktop/src/renderer/src/DesktopAppHeader.vue
+++ b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
@@ -50,6 +50,7 @@ async function goBack() {
 
 async function newDocument(kind: AutomatonKind) {
   closeMenu();
+  docStore.flushInspectorEdits();
   await runProtectedDocumentAction({
     isDirty: docStore.isDirty,
     save: saveForLifecycle,
@@ -63,6 +64,7 @@ async function newDocument(kind: AutomatonKind) {
 
 async function openFile() {
   closeMenu();
+  docStore.flushInspectorEdits();
   await runProtectedDocumentAction({
     isDirty: docStore.isDirty,
     save: saveForLifecycle,
@@ -82,6 +84,7 @@ async function openFile() {
 }
 
 async function persistToDisk(saveAs = false): Promise<boolean> {
+  docStore.flushInspectorEdits();
   const name = docStore.fileName ?? 'untitled.jff';
   const token = docStore.createRevisionToken();
   const result = await saveAutomaton(
diff --git a/apps/web/src/App.vue b/apps/web/src/App.vue
index 962bdda..c61fe2c 100644
--- a/apps/web/src/App.vue
+++ b/apps/web/src/App.vue
@@ -19,6 +19,7 @@ useKeyboardShortcuts();
 
 async function saveCurrentDocument(): Promise<boolean> {
   try {
+    docStore.flushInspectorEdits();
     const name = docStore.fileName ?? 'untitled.jff';
     const token = docStore.createRevisionToken();
     const result = await saveAutomaton(fileService, docStore.automaton, name);
@@ -31,6 +32,7 @@ async function saveCurrentDocument(): Promise<boolean> {
 }
 
 async function handleNew(kind: AutomatonKind) {
+  docStore.flushInspectorEdits();
   await runProtectedDocumentAction({
     isDirty: docStore.isDirty,
     save: saveCurrentDocument,
@@ -43,6 +45,7 @@ async function handleNew(kind: AutomatonKind) {
 }
 
 async function handleOpen() {
+  docStore.flushInspectorEdits();
   await runProtectedDocumentAction({
     isDirty: docStore.isDirty,
     save: saveCurrentDocument,
diff --git a/apps/web/src/AppHeader.vue b/apps/web/src/AppHeader.vue
index eb2a6a9..2d68288 100644
--- a/apps/web/src/AppHeader.vue
+++ b/apps/web/src/AppHeader.vue
@@ -41,6 +41,7 @@ async function goHome() {
 
 async function newDocument(kind: AutomatonKind) {
   closeMenu();
+  docStore.flushInspectorEdits();
   await runProtectedDocumentAction({
     isDirty: docStore.isDirty,
     save: saveForLifecycle,
@@ -54,6 +55,7 @@ async function newDocument(kind: AutomatonKind) {
 
 async function openFile() {
   closeMenu();
+  docStore.flushInspectorEdits();
   await runProtectedDocumentAction({
     isDirty: docStore.isDirty,
     save: saveForLifecycle,
@@ -73,6 +75,7 @@ async function openFile() {
 }
 
 async function persistToDisk(_saveAs = false): Promise<boolean> {
+  docStore.flushInspectorEdits();
   const name = docStore.fileName ?? 'untitled.jff';
   const token = docStore.createRevisionToken();
   const result = await saveAutomaton(fileService, docStore.automaton, name);
diff --git a/packages/ui/__tests__/history.test.ts b/packages/ui/__tests__/history.test.ts
index 13b6678..85a5231 100644
--- a/packages/ui/__tests__/history.test.ts
+++ b/packages/ui/__tests__/history.test.ts
@@ -1,4 +1,4 @@
-import { beforeEach, describe, expect, it } from 'vitest';
+import { beforeEach, describe, expect, it, vi } from 'vitest';
 import { createPinia, setActivePinia } from 'pinia';
 import { AddStateCommand, createEmptyAutomaton } from '@jauto/core';
 import { useDocumentStore } from '../src/stores/document';
@@ -71,4 +71,12 @@ describe('document and command history integration', () => {
     expect(doc.fileName).toBe('chosen.jff');
     expect(doc.filePath).toBe('D:/exports/chosen.jff');
   });
+
+  it('flushes a registered inspector draft before changing selection', () => {
+    const doc = useDocumentStore();
+    const flush = vi.fn();
+    doc.registerInspectorCommitter(flush);
+    doc.select({ type: 'state', id: 'q0' });
+    expect(flush).toHaveBeenCalledOnce();
+  });
 });
diff --git a/packages/ui/src/components/InspectorPanel.vue b/packages/ui/src/components/InspectorPanel.vue
index c39e069..21102bf 100644
--- a/packages/ui/src/components/InspectorPanel.vue
+++ b/packages/ui/src/components/InspectorPanel.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { computed, nextTick, ref, watch } from 'vue';
+import { computed, nextTick, onBeforeUnmount, ref, watch } from 'vue';
 import { Check } from '@lucide/vue';
 import { useDocumentStore } from '../stores/document';
 import { useHistoryStore } from '../stores/history';
@@ -184,6 +184,9 @@ function applyChanges() {
   else if (hasPendingTransitionEdits.value) applyTransitionEdits();
 }
 
+docStore.registerInspectorCommitter(applyChanges);
+onBeforeUnmount(() => docStore.registerInspectorCommitter(null));
+
 const transitionFields = computed(() => {
   const t = selectedTransition.value;
   if (!t) return [];
diff --git a/packages/ui/src/components/SimulationControls.vue b/packages/ui/src/components/SimulationControls.vue
index 6d3aec7..b7c7682 100644
--- a/packages/ui/src/components/SimulationControls.vue
+++ b/packages/ui/src/components/SimulationControls.vue
@@ -7,6 +7,7 @@ const docStore = useDocumentStore();
 const sim = useSimulationStore();
 
 function handleStart() {
+  docStore.flushInspectorEdits();
   sim.start(docStore.automaton);
 }
 
diff --git a/packages/ui/src/stores/document.ts b/packages/ui/src/stores/document.ts
index 3ab0c42..1ec5001 100644
--- a/packages/ui/src/stores/document.ts
+++ b/packages/ui/src/stores/document.ts
@@ -39,6 +39,7 @@ export const useDocumentStore = defineStore('document', () => {
   let inspectorFocusNonce = 0;
   let nextDocumentId = 0;
   let nextRevision = 0;
+  let inspectorCommitter: (() => void) | null = null;
 
   const automatonKind = computed<AutomatonKind>(() => automaton.value.kind);
   const isDirty = computed(() => revision.value !== savedRevision.value);
@@ -138,9 +139,18 @@ export const useDocumentStore = defineStore('document', () => {
   }
 
   function select(element: SelectedElement) {
+    flushInspectorEdits();
     selectedElement.value = element;
   }
 
+  function registerInspectorCommitter(committer: (() => void) | null) {
+    inspectorCommitter = committer;
+  }
+
+  function flushInspectorEdits() {
+    inspectorCommitter?.();
+  }
+
   function requestInspectorFocus(target: InspectorFocusRequest) {
     if (target.type === 'state') {
       inspectorFocusTarget.value = { type: 'state', field: target.field, nonce: ++inspectorFocusNonce };
@@ -150,6 +160,7 @@ export const useDocumentStore = defineStore('document', () => {
   }
 
   function clearSelection() {
+    flushInspectorEdits();
     selectedElement.value = null;
     inspectorFocusTarget.value = null;
   }
@@ -206,6 +217,8 @@ export const useDocumentStore = defineStore('document', () => {
     clearRecoveryDraft,
     rename,
     select,
+    registerInspectorCommitter,
+    flushInspectorEdits,
     requestInspectorFocus,
     clearSelection,
     setTool,
diff --git a/packages/ui/src/stores/history.ts b/packages/ui/src/stores/history.ts
index 47001dd..3503bb9 100644
--- a/packages/ui/src/stores/history.ts
+++ b/packages/ui/src/stores/history.ts
@@ -25,6 +25,7 @@ export const useHistoryStore = defineStore('history', () => {
   }
 
   function undo() {
+    document.flushInspectorEdits();
     const result = history.undo(document.automaton);
     if (result) {
       const revisions = undoRevisions.pop();
@@ -36,6 +37,7 @@ export const useHistoryStore = defineStore('history', () => {
   }
 
   function redo() {
+    document.flushInspectorEdits();
     const result = history.redo(document.automaton);
     if (result) {
       const revisions = redoRevisions.pop();

From fbb88f8c519a3f578c890256b0f8fd832788c679 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:15:52 -0300
Subject: [PATCH 16/43] fix(simulator): report incomplete bounded exploration

---
 ACTION_PLAN.md                                |  7 +--
 .../simulator/__tests__/run-outcomes.test.ts  | 51 ++++++++++++++++++-
 packages/simulator/src/dfa-runner.ts          |  6 ++-
 packages/simulator/src/index.ts               |  1 +
 packages/simulator/src/nfa-runner.ts          |  6 ++-
 packages/simulator/src/pda-runner.ts          | 31 ++++++++---
 packages/simulator/src/run-budget.ts          |  5 ++
 packages/simulator/src/tm-runner.ts           |  6 ++-
 packages/simulator/src/types.ts               |  6 ++-
 9 files changed, 100 insertions(+), 19 deletions(-)
 create mode 100644 packages/simulator/src/run-budget.ts

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index f590235..806de2c 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -125,12 +125,12 @@ No source or configuration files were changed during the audit. Native installer
 - [x] Connect NFA execution and epsilon closure to the editor.
 - [x] Support the declared FA/PDA string-transition semantics, including PDA stack-string matching.
 - [x] Initialize PDA stacks consistently with JFLAP and correct initial-configuration acceptance.
-- [ ] Implement fair nondeterministic exploration and configuration deduplication where appropriate.
+- [x] Implement fair nondeterministic exploration and configuration deduplication where appropriate.
 - [ ] Support nondeterministic TMs or explicitly prevent unsupported execution until implemented.
 - [ ] Specify and implement the targeted TM acceptance policies and shortcut syntax.
-- [ ] Replace silent branch truncation with explicit resource-limit outcomes.
+- [x] Replace silent branch truncation with explicit resource-limit outcomes.
 - [ ] Standardize accepted, rejected, invalid, canceled, and incomplete outcomes across runners.
-- [ ] Validate execution budgets, including zero/negative values, and make terminal steps idempotent.
+- [x] Validate execution budgets, including zero/negative values, and make terminal steps idempotent.
 - [ ] Repair determinism checks and remove placeholder completeness results.
 - [ ] Separate input, stack, and tape alphabet helpers.
 - [ ] Update existing tests that encode incompatible PDA initialization assumptions.
@@ -255,5 +255,6 @@ Before calling the automata milestone dependable:
 - File identity and save behavior: carried desktop paths through open/save, made Save overwrite the current path while Save As opens the chooser, adopted the filename actually selected, retained dirty state on cancellation/failure, and surfaced save/export errors to users. Validation: 4 file-service and 20 UI tests passed; Rust check/format, workspace type checks and lint passed.
 - Exact structural undo: removal commands now capture and restore original state and transition indices, including connected edges, while revision history returns to the saved revision. Validation: 43 core tests passed; core type checks and lint passed.
 - Inspector transaction boundary: registered the active inspector draft with the document store and flush it before selection changes, save, New/Open, simulation start, undo, and redo. Validation: 21 UI tests passed; workspace type checks and lint passed.
+- Fair bounded exploration: deduplicated NFA/PDA configurations during breadth-first stepping, replaced PDA's silent 1,000-branch truncation with an `incomplete` result and `configuration-limit` reason, validated run budgets, and made terminal stepping idempotent. Validation: 43 simulator tests passed; simulator type checks and lint passed.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/packages/simulator/__tests__/run-outcomes.test.ts b/packages/simulator/__tests__/run-outcomes.test.ts
index 4884de6..368c58c 100644
--- a/packages/simulator/__tests__/run-outcomes.test.ts
+++ b/packages/simulator/__tests__/run-outcomes.test.ts
@@ -32,7 +32,7 @@ describe('bounded run outcomes', () => {
     ['TM', () => createTMRunner(tm, 'a')],
   ])('%s reports a zero-step limit without crashing', (_name, createRunner) => {
     const result = createRunner().run(0);
-    expect(result).toMatchObject({ accepted: false, outcome: 'step-limit', steps: [] });
+    expect(result).toMatchObject({ accepted: false, outcome: 'incomplete', incompleteReason: 'step-limit', steps: [] });
     expect(result.finalConfig).toBeDefined();
   });
 
@@ -41,4 +41,53 @@ describe('bounded run outcomes', () => {
     expect(rejected.outcome).toBe('rejected');
     expect(rejected.steps).toHaveLength(1);
   });
+
+  it.each([
+    ['negative', -1],
+    ['fractional', 1.5],
+    ['infinite', Number.POSITIVE_INFINITY],
+  ])('rejects a %s execution budget', (_name, budget) => {
+    expect(() => createDFARunner(dfa, 'a').run(budget)).toThrow(RangeError);
+  });
+
+  it('reports PDA configuration exhaustion without treating it as rejection', () => {
+    const branchStates = Array.from({ length: 1001 }, (_, index) => ({
+      id: `q${index + 1}`,
+      name: `q${index + 1}`,
+      x: index,
+      y: 0,
+      isInitial: false,
+      isFinal: false,
+    }));
+    const branching: PushdownAutomaton = {
+      kind: 'pda',
+      states: [states[0], ...branchStates],
+      transitions: branchStates.map((state, index) => ({
+        id: `t${index}`,
+        from: 'q0',
+        to: state.id,
+        read: 'a',
+        pop: '',
+        push: String(index),
+      })),
+    };
+    expect(createPDARunner(branching, 'a').run()).toMatchObject({
+      accepted: false,
+      outcome: 'incomplete',
+      incompleteReason: 'configuration-limit',
+    });
+  });
+
+  it.each([
+    ['DFA', () => createDFARunner(dfa, 'a')],
+    ['NFA', () => createNFARunner(nfa, 'a')],
+    ['PDA', () => createPDARunner(pda, 'a')],
+    ['TM', () => createTMRunner(tm, 'a')],
+  ])('%s terminal steps are idempotent', (_name, createRunner) => {
+    const runner = createRunner();
+    runner.run();
+    const first = runner.step();
+    const second = runner.step();
+    expect(second).toEqual(first);
+  });
 });
diff --git a/packages/simulator/src/dfa-runner.ts b/packages/simulator/src/dfa-runner.ts
index a411608..0167e4d 100644
--- a/packages/simulator/src/dfa-runner.ts
+++ b/packages/simulator/src/dfa-runner.ts
@@ -1,6 +1,7 @@
 import type { FiniteAutomaton } from '@jauto/core';
 import type { SimulationRunner, StepResult, RunResult, SimulationStatus } from './types';
 import type { DFAConfig } from './configs';
+import { validateRunBudget } from './run-budget';
 
 export function createDFARunner(
   automaton: FiniteAutomaton,
@@ -50,6 +51,7 @@ export function createDFARunner(
   }
 
   function run(maxSteps = 10000): RunResult<DFAConfig> {
+    validateRunBudget(maxSteps);
     const steps: StepResult<DFAConfig>[] = [];
     while (steps.length < maxSteps) {
       const result = step();
@@ -57,8 +59,8 @@ export function createDFARunner(
       if (result.status !== 'running') break;
     }
     const status = getStatus();
-    const outcome = status === 'running' ? 'step-limit' : status;
-    return { accepted: outcome === 'accepted', outcome, steps, finalConfig: config };
+    const outcome = status === 'running' ? 'incomplete' : status;
+    return { accepted: outcome === 'accepted', outcome, incompleteReason: outcome === 'incomplete' ? 'step-limit' : undefined, steps, finalConfig: config };
   }
 
   function reset() {
diff --git a/packages/simulator/src/index.ts b/packages/simulator/src/index.ts
index e2826b3..936257c 100644
--- a/packages/simulator/src/index.ts
+++ b/packages/simulator/src/index.ts
@@ -1,6 +1,7 @@
 export type {
   SimulationRunner,
   SimulationRunOutcome,
+  SimulationIncompleteReason,
   StepResult,
   RunResult,
   SimulationStatus,
diff --git a/packages/simulator/src/nfa-runner.ts b/packages/simulator/src/nfa-runner.ts
index e9d0037..6148b3f 100644
--- a/packages/simulator/src/nfa-runner.ts
+++ b/packages/simulator/src/nfa-runner.ts
@@ -1,6 +1,7 @@
 import type { FiniteAutomaton } from '@jauto/core';
 import type { SimulationRunner, StepResult, RunResult, SimulationStatus } from './types';
 import type { NFAConfig } from './configs';
+import { validateRunBudget } from './run-budget';
 
 interface Branch {
   state: string;
@@ -99,6 +100,7 @@ export function createNFARunner(
   }
 
   function run(maxSteps = 10000): RunResult<NFAConfig> {
+    validateRunBudget(maxSteps);
     const steps: StepResult<NFAConfig>[] = [];
     while (steps.length < maxSteps) {
       const result = step();
@@ -106,8 +108,8 @@ export function createNFARunner(
       if (result.status !== 'running') break;
     }
     const status = getStatus();
-    const outcome = status === 'running' ? 'step-limit' : status;
-    return { accepted: outcome === 'accepted', outcome, steps, finalConfig: toPublicConfig() };
+    const outcome = status === 'running' ? 'incomplete' : status;
+    return { accepted: outcome === 'accepted', outcome, incompleteReason: outcome === 'incomplete' ? 'step-limit' : undefined, steps, finalConfig: toPublicConfig() };
   }
 
   function reset() {
diff --git a/packages/simulator/src/pda-runner.ts b/packages/simulator/src/pda-runner.ts
index 422fe49..2d8f753 100644
--- a/packages/simulator/src/pda-runner.ts
+++ b/packages/simulator/src/pda-runner.ts
@@ -1,6 +1,7 @@
 import type { PushdownAutomaton } from '@jauto/core';
 import type { SimulationRunner, StepResult, RunResult, SimulationStatus } from './types';
 import type { PDAConfig } from './configs';
+import { validateRunBudget } from './run-budget';
 
 interface PDAConfiguration {
   state: string;
@@ -24,6 +25,11 @@ export function createPDARunner(
   ];
   let stepIndex = 0;
   let accepted = false;
+  let configurationLimitReached = false;
+
+  function configurationKey(config: PDAConfiguration): string {
+    return `${config.state}\u0000${config.inputIndex}\u0000${config.stack.join('\u0001')}`;
+  }
 
   function toPublicConfig(): PDAConfig {
     const first = configs[0];
@@ -58,6 +64,7 @@ export function createPDARunner(
 
   function getStatus(): SimulationStatus {
     if (accepted) return 'accepted';
+    if (configurationLimitReached) return 'incomplete';
     if (configs.length === 0) return 'rejected';
 
     for (const c of configs) {
@@ -77,7 +84,7 @@ export function createPDARunner(
       return { config: toPublicConfig(), status: currentStatus, stepIndex };
     }
 
-    const nextConfigs: PDAConfiguration[] = [];
+    const nextConfigs = new Map<string, PDAConfiguration>();
 
     for (const c of configs) {
       for (const t of automaton.transitions) {
@@ -96,17 +103,22 @@ export function createPDARunner(
           }
 
           const consumed = t.read.length;
-          nextConfigs.push({
+          const next = {
             state: t.to,
             remaining: c.remaining.slice(consumed),
             inputIndex: c.inputIndex + consumed,
             stack: newStack,
-          });
+          };
+          nextConfigs.set(configurationKey(next), next);
+          if (nextConfigs.size > MAX_CONFIGS) {
+            configurationLimitReached = true;
+            return { config: toPublicConfig(), status: 'incomplete', stepIndex };
+          }
         }
       }
     }
 
-    configs = nextConfigs.slice(0, MAX_CONFIGS);
+    configs = [...nextConfigs.values()];
     stepIndex++;
 
     for (const c of configs) {
@@ -123,6 +135,7 @@ export function createPDARunner(
   }
 
   function run(maxSteps = 10000): RunResult<PDAConfig> {
+    validateRunBudget(maxSteps);
     const steps: StepResult<PDAConfig>[] = [];
     while (steps.length < maxSteps) {
       const result = step();
@@ -130,21 +143,25 @@ export function createPDARunner(
       if (result.status !== 'running') break;
     }
     const status = getStatus();
-    const outcome = status === 'running' ? 'step-limit' : status;
-    return { accepted: outcome === 'accepted', outcome, steps, finalConfig: toPublicConfig() };
+    const outcome = status === 'running' ? 'incomplete' : status;
+    const incompleteReason = outcome === 'incomplete'
+      ? configurationLimitReached ? 'configuration-limit' : 'step-limit'
+      : undefined;
+    return { accepted: outcome === 'accepted', outcome, incompleteReason, steps, finalConfig: toPublicConfig() };
   }
 
   function reset() {
     configs = [{ state: initialId, remaining: input, inputIndex: 0, stack: ['Z'] }];
     stepIndex = 0;
     accepted = false;
+    configurationLimitReached = false;
   }
 
   return {
     step,
     run,
     reset,
-    get isHalted() { return configs.length === 0 || accepted || getStatus() !== 'running'; },
+    get isHalted() { return getStatus() !== 'running'; },
     get isAccepted() { return accepted || getStatus() === 'accepted'; },
     get currentConfig() { return toPublicConfig(); },
   };
diff --git a/packages/simulator/src/run-budget.ts b/packages/simulator/src/run-budget.ts
new file mode 100644
index 0000000..035c5af
--- /dev/null
+++ b/packages/simulator/src/run-budget.ts
@@ -0,0 +1,5 @@
+export function validateRunBudget(maxSteps: number): void {
+  if (!Number.isInteger(maxSteps) || maxSteps < 0) {
+    throw new RangeError('maxSteps must be a non-negative integer');
+  }
+}
diff --git a/packages/simulator/src/tm-runner.ts b/packages/simulator/src/tm-runner.ts
index 142a9bc..a5f1793 100644
--- a/packages/simulator/src/tm-runner.ts
+++ b/packages/simulator/src/tm-runner.ts
@@ -1,6 +1,7 @@
 import type { TuringMachine } from '@jauto/core';
 import type { SimulationRunner, StepResult, RunResult, SimulationStatus } from './types';
 import type { TMConfig } from './configs';
+import { validateRunBudget } from './run-budget';
 
 const BLANK = '\u25A1';
 
@@ -94,6 +95,7 @@ export function createTMRunner(
   }
 
   function run(maxSteps = 10000): RunResult<TMConfig> {
+    validateRunBudget(maxSteps);
     const steps: StepResult<TMConfig>[] = [];
     while (steps.length < maxSteps) {
       const result = step();
@@ -101,8 +103,8 @@ export function createTMRunner(
       if (result.status !== 'running') break;
     }
     const status = getStatus();
-    const outcome = status === 'running' ? 'step-limit' : status;
-    return { accepted: outcome === 'accepted', outcome, steps, finalConfig: getConfig() };
+    const outcome = status === 'running' ? 'incomplete' : status;
+    return { accepted: outcome === 'accepted', outcome, incompleteReason: outcome === 'incomplete' ? 'step-limit' : undefined, steps, finalConfig: getConfig() };
   }
 
   function reset() {
diff --git a/packages/simulator/src/types.ts b/packages/simulator/src/types.ts
index bacbe9e..4b81b3b 100644
--- a/packages/simulator/src/types.ts
+++ b/packages/simulator/src/types.ts
@@ -1,5 +1,6 @@
-export type SimulationStatus = 'running' | 'accepted' | 'rejected' | 'halted';
-export type SimulationRunOutcome = Exclude<SimulationStatus, 'running'> | 'step-limit';
+export type SimulationStatus = 'running' | 'accepted' | 'rejected' | 'halted' | 'invalid' | 'canceled' | 'incomplete';
+export type SimulationRunOutcome = Exclude<SimulationStatus, 'running'>;
+export type SimulationIncompleteReason = 'step-limit' | 'configuration-limit';
 
 export interface StepResult<TConfig> {
   config: TConfig;
@@ -10,6 +11,7 @@ export interface StepResult<TConfig> {
 export interface RunResult<TConfig> {
   accepted: boolean;
   outcome: SimulationRunOutcome;
+  incompleteReason?: SimulationIncompleteReason;
   steps: StepResult<TConfig>[];
   finalConfig: TConfig;
 }

From 97d87edb14c5e97f57af4d59f0c7826629e708e4 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:17:59 -0300
Subject: [PATCH 17/43] feat(simulator): define TM profiles and terminal
 outcomes

---
 ACTION_PLAN.md                                |  7 +--
 docs/COMPATIBILITY.md                         |  2 +-
 .../simulator/__tests__/run-outcomes.test.ts  | 12 +++++
 .../simulator/__tests__/tm-runner.test.ts     | 23 +++++++++
 packages/simulator/src/dfa-runner.ts          | 10 +++-
 packages/simulator/src/index.ts               |  2 +
 packages/simulator/src/nfa-runner.ts          |  6 +++
 packages/simulator/src/pda-runner.ts          |  6 +++
 packages/simulator/src/tm-runner.ts           | 51 ++++++++++++++-----
 packages/simulator/src/types.ts               |  8 +++
 .../ui/src/components/SimulationControls.vue  |  8 ++-
 packages/ui/src/stores/simulation.ts          |  9 +++-
 12 files changed, 121 insertions(+), 23 deletions(-)

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index 806de2c..c20ed13 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -126,10 +126,10 @@ No source or configuration files were changed during the audit. Native installer
 - [x] Support the declared FA/PDA string-transition semantics, including PDA stack-string matching.
 - [x] Initialize PDA stacks consistently with JFLAP and correct initial-configuration acceptance.
 - [x] Implement fair nondeterministic exploration and configuration deduplication where appropriate.
-- [ ] Support nondeterministic TMs or explicitly prevent unsupported execution until implemented.
-- [ ] Specify and implement the targeted TM acceptance policies and shortcut syntax.
+- [x] Support nondeterministic TMs or explicitly prevent unsupported execution until implemented.
+- [x] Specify and implement the targeted TM acceptance policies and shortcut syntax.
 - [x] Replace silent branch truncation with explicit resource-limit outcomes.
-- [ ] Standardize accepted, rejected, invalid, canceled, and incomplete outcomes across runners.
+- [x] Standardize accepted, rejected, invalid, canceled, and incomplete outcomes across runners.
 - [x] Validate execution budgets, including zero/negative values, and make terminal steps idempotent.
 - [ ] Repair determinism checks and remove placeholder completeness results.
 - [ ] Separate input, stack, and tape alphabet helpers.
@@ -256,5 +256,6 @@ Before calling the automata milestone dependable:
 - Exact structural undo: removal commands now capture and restore original state and transition indices, including connected edges, while revision history returns to the saved revision. Validation: 43 core tests passed; core type checks and lint passed.
 - Inspector transaction boundary: registered the active inspector draft with the document store and flush it before selection changes, save, New/Open, simulation start, undo, and redo. Validation: 21 UI tests passed; workspace type checks and lint passed.
 - Fair bounded exploration: deduplicated NFA/PDA configurations during breadth-first stepping, replaced PDA's silent 1,000-branch truncation with an `incomplete` result and `configuration-limit` reason, validated run budgets, and made terminal stepping idempotent. Validation: 43 simulator tests passed; simulator type checks and lint passed.
+- Execution profiles and outcomes: added terminal cancellation across runners, surfaced invalid-machine errors in the editor, implemented configurable TM final-state/halting acceptance, and reject nondeterministic TMs, disabled stay moves, and JFLAP shortcut syntax before execution when unsupported. Validation: 49 simulator and 21 UI tests passed; workspace type checks and lint passed.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/docs/COMPATIBILITY.md b/docs/COMPATIBILITY.md
index 9840e4d..dd73e61 100644
--- a/docs/COMPATIBILITY.md
+++ b/docs/COMPATIBILITY.md
@@ -10,7 +10,7 @@ This table records the audited baseline. Update a row only after its independent
 | --- | --- | --- | --- |
 | Finite automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests; representative export reopened by JFLAP 7.1 | DFA/NFA literal-string execution, including prefix-overlapping branches and epsilon closure |
 | Pushdown automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | Initial `Z`, literal read/pop/push strings, final-state acceptance; exploration limit reporting remains pending |
-| Single-tape Turing machines | Validated literal single-tape subset | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | Deterministic literal-symbol subset |
+| Single-tape Turing machines | Validated literal single-tape subset | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | Deterministic literal-symbol subset with explicit final-state/halting profiles; nondeterminism and shortcut syntax are rejected before execution |
 | Notes and transition control points | Preserved | Round-trip covered by automated tests | Layout only; editing UI is pending |
 | Multi-tape and building-block TMs | Rejected with an actionable error | Not editable | Unsupported |
 | Regular expressions, grammars, Mealy/Moore, L-systems, pumping exercises | Unsupported | Unsupported | Unsupported |
diff --git a/packages/simulator/__tests__/run-outcomes.test.ts b/packages/simulator/__tests__/run-outcomes.test.ts
index 368c58c..0edfa60 100644
--- a/packages/simulator/__tests__/run-outcomes.test.ts
+++ b/packages/simulator/__tests__/run-outcomes.test.ts
@@ -90,4 +90,16 @@ describe('bounded run outcomes', () => {
     const second = runner.step();
     expect(second).toEqual(first);
   });
+
+  it.each([
+    ['DFA', () => createDFARunner(dfa, 'a')],
+    ['NFA', () => createNFARunner(nfa, 'a')],
+    ['PDA', () => createPDARunner(pda, 'a')],
+    ['TM', () => createTMRunner(tm, 'a')],
+  ])('%s exposes cancellation as a terminal outcome', (_name, createRunner) => {
+    const runner = createRunner();
+    runner.cancel();
+    expect(runner.run()).toMatchObject({ accepted: false, outcome: 'canceled' });
+    expect(runner.step().status).toBe('canceled');
+  });
 });
diff --git a/packages/simulator/__tests__/tm-runner.test.ts b/packages/simulator/__tests__/tm-runner.test.ts
index 9c638e1..2f23e79 100644
--- a/packages/simulator/__tests__/tm-runner.test.ts
+++ b/packages/simulator/__tests__/tm-runner.test.ts
@@ -68,4 +68,27 @@ describe('TM Runner', () => {
     expect(runner.currentConfig.headPosition).toBe(0);
     expect(runner.currentConfig.stepCount).toBe(0);
   });
+
+  it('supports explicit final-state and halting acceptance profiles', () => {
+    const halting = buildTM([s('0', { isInitial: true })], []);
+    expect(createTMRunner(halting, '').run().outcome).toBe('halted');
+    expect(createTMRunner(halting, '', { acceptByHalting: true }).run().outcome).toBe('accepted');
+
+    const initialFinal = buildTM([s('0', { isInitial: true, isFinal: true })], []);
+    expect(createTMRunner(initialFinal, '').run().outcome).toBe('accepted');
+    expect(createTMRunner(initialFinal, '', { acceptByFinalState: false }).run().outcome).toBe('halted');
+  });
+
+  it('rejects unsupported nondeterminism and JFLAP shortcut syntax before execution', () => {
+    const nondeterministic = buildTM(
+      [s('0', { isInitial: true }), s('1'), s('2')],
+      [t('t0', '0', '1', 'a', 'a', 'R'), t('t1', '0', '2', 'a', 'a', 'L')],
+    );
+    expect(() => createTMRunner(nondeterministic, 'a')).toThrow('Nondeterministic');
+    const shortcut = buildTM(
+      [s('0', { isInitial: true }), s('1')],
+      [t('t0', '0', '1', '~', '~', 'R')],
+    );
+    expect(() => createTMRunner(shortcut, 'a')).toThrow('shortcut syntax');
+  });
 });
diff --git a/packages/simulator/src/dfa-runner.ts b/packages/simulator/src/dfa-runner.ts
index 0167e4d..d69acb9 100644
--- a/packages/simulator/src/dfa-runner.ts
+++ b/packages/simulator/src/dfa-runner.ts
@@ -18,8 +18,10 @@ export function createDFARunner(
   };
   let stepIndex = 0;
   let halted = false;
+  let canceled = false;
 
   function getStatus(): SimulationStatus {
+    if (canceled) return 'canceled';
     if (config.remainingInput.length === 0) {
       const state = automaton.states.find((s) => s.id === config.currentState);
       return state?.isFinal ? 'accepted' : 'rejected';
@@ -28,7 +30,7 @@ export function createDFARunner(
   }
 
   function step(): StepResult<DFAConfig> {
-    if (halted || config.remainingInput.length === 0) {
+    if (getStatus() !== 'running') {
       return { config, status: getStatus(), stepIndex };
     }
 
@@ -67,13 +69,17 @@ export function createDFARunner(
     config = { currentState: initialId, remainingInput: input, inputIndex: 0 };
     stepIndex = 0;
     halted = false;
+    canceled = false;
   }
 
+  function cancel() { canceled = true; }
+
   return {
     step,
     run,
     reset,
-    get isHalted() { return halted || config.remainingInput.length === 0; },
+    cancel,
+    get isHalted() { return canceled || halted || config.remainingInput.length === 0; },
     get isAccepted() { return getStatus() === 'accepted'; },
     get currentConfig() { return config; },
   };
diff --git a/packages/simulator/src/index.ts b/packages/simulator/src/index.ts
index 936257c..d36dffc 100644
--- a/packages/simulator/src/index.ts
+++ b/packages/simulator/src/index.ts
@@ -6,6 +6,7 @@ export type {
   RunResult,
   SimulationStatus,
 } from './types';
+export { UnsupportedSimulationError } from './types';
 
 export type {
   DFAConfig,
@@ -18,3 +19,4 @@ export { createDFARunner } from './dfa-runner';
 export { createNFARunner } from './nfa-runner';
 export { createPDARunner } from './pda-runner';
 export { createTMRunner } from './tm-runner';
+export type { TMRunnerOptions } from './tm-runner';
diff --git a/packages/simulator/src/nfa-runner.ts b/packages/simulator/src/nfa-runner.ts
index 6148b3f..a5d7bd3 100644
--- a/packages/simulator/src/nfa-runner.ts
+++ b/packages/simulator/src/nfa-runner.ts
@@ -40,6 +40,7 @@ export function createNFARunner(
   const initialBranches = epsilonClosure([{ state: initialState.id, inputIndex: 0 }]);
   let branches = initialBranches;
   let stepIndex = 0;
+  let canceled = false;
 
   function toPublicConfig(): NFAConfig {
     const inputIndex = branches.reduce(
@@ -67,6 +68,7 @@ export function createNFARunner(
   }
 
   function getStatus(): SimulationStatus {
+    if (canceled) return 'canceled';
     if (branches.some(isAccepting)) return 'accepted';
     if (branches.length === 0 || !hasApplicableTransition()) return 'rejected';
     return 'running';
@@ -115,12 +117,16 @@ export function createNFARunner(
   function reset() {
     branches = initialBranches;
     stepIndex = 0;
+    canceled = false;
   }
 
+  function cancel() { canceled = true; }
+
   return {
     step,
     run,
     reset,
+    cancel,
     get isHalted() { return getStatus() !== 'running'; },
     get isAccepted() { return getStatus() === 'accepted'; },
     get currentConfig() { return toPublicConfig(); },
diff --git a/packages/simulator/src/pda-runner.ts b/packages/simulator/src/pda-runner.ts
index 2d8f753..117a9b0 100644
--- a/packages/simulator/src/pda-runner.ts
+++ b/packages/simulator/src/pda-runner.ts
@@ -26,6 +26,7 @@ export function createPDARunner(
   let stepIndex = 0;
   let accepted = false;
   let configurationLimitReached = false;
+  let canceled = false;
 
   function configurationKey(config: PDAConfiguration): string {
     return `${config.state}\u0000${config.inputIndex}\u0000${config.stack.join('\u0001')}`;
@@ -63,6 +64,7 @@ export function createPDARunner(
   }
 
   function getStatus(): SimulationStatus {
+    if (canceled) return 'canceled';
     if (accepted) return 'accepted';
     if (configurationLimitReached) return 'incomplete';
     if (configs.length === 0) return 'rejected';
@@ -155,12 +157,16 @@ export function createPDARunner(
     stepIndex = 0;
     accepted = false;
     configurationLimitReached = false;
+    canceled = false;
   }
 
+  function cancel() { canceled = true; }
+
   return {
     step,
     run,
     reset,
+    cancel,
     get isHalted() { return getStatus() !== 'running'; },
     get isAccepted() { return accepted || getStatus() === 'accepted'; },
     get currentConfig() { return toPublicConfig(); },
diff --git a/packages/simulator/src/tm-runner.ts b/packages/simulator/src/tm-runner.ts
index a5f1793..f73be5f 100644
--- a/packages/simulator/src/tm-runner.ts
+++ b/packages/simulator/src/tm-runner.ts
@@ -1,17 +1,37 @@
-import type { TuringMachine } from '@jauto/core';
-import type { SimulationRunner, StepResult, RunResult, SimulationStatus } from './types';
+import { isDeterministic, type TuringMachine } from '@jauto/core';
+import { UnsupportedSimulationError, type SimulationRunner, type StepResult, type RunResult, type SimulationStatus } from './types';
 import type { TMConfig } from './configs';
 import { validateRunBudget } from './run-budget';
 
 const BLANK = '\u25A1';
 
+export interface TMRunnerOptions {
+  acceptByFinalState?: boolean;
+  acceptByHalting?: boolean;
+  allowStay?: boolean;
+}
+
 export function createTMRunner(
   automaton: TuringMachine,
   input: string,
+  options: TMRunnerOptions = {},
 ): SimulationRunner<TMConfig> {
+  const acceptByFinalState = options.acceptByFinalState ?? true;
+  const acceptByHalting = options.acceptByHalting ?? false;
+  const allowStay = options.allowStay ?? true;
+  if (!isDeterministic(automaton)) {
+    throw new UnsupportedSimulationError('Nondeterministic Turing machines are not supported yet');
+  }
+  if (automaton.transitions.some((transition) => /[!~}]/.test(transition.read) || /[!~}]/.test(transition.write))) {
+    throw new UnsupportedSimulationError('JFLAP Turing-machine shortcut syntax is not supported yet');
+  }
+  if (!allowStay && automaton.transitions.some((transition) => transition.move === 'S')) {
+    throw new UnsupportedSimulationError('Stay moves are disabled by this execution profile');
+  }
   const initialState = automaton.states.find((s) => s.isInitial);
   if (!initialState) throw new Error('No initial state');
   const initialId = initialState.id;
+  const initialIsFinal = initialState.isFinal;
 
   const initialTape = input.length > 0 ? input.split('') : [BLANK];
 
@@ -19,7 +39,9 @@ export function createTMRunner(
   let headPosition = 0;
   let currentState = initialState.id;
   let stepCount = 0;
-  let halted = false;
+  let haltReason: 'final-state' | 'no-transition' | null =
+    initialIsFinal && acceptByFinalState ? 'final-state' : null;
+  let canceled = false;
 
   function readTape(): string {
     if (headPosition < 0 || headPosition >= tape.length) return BLANK;
@@ -45,15 +67,14 @@ export function createTMRunner(
   }
 
   function getStatus(): SimulationStatus {
-    if (halted) {
-      const state = automaton.states.find((s) => s.id === currentState);
-      return state?.isFinal ? 'accepted' : 'halted';
-    }
+    if (canceled) return 'canceled';
+    if (haltReason === 'final-state') return 'accepted';
+    if (haltReason === 'no-transition') return acceptByHalting ? 'accepted' : 'halted';
     return 'running';
   }
 
   function step(): StepResult<TMConfig> {
-    if (halted) {
+    if (getStatus() !== 'running') {
       return { config: getConfig(), status: getStatus(), stepIndex: stepCount };
     }
 
@@ -66,7 +87,7 @@ export function createTMRunner(
     });
 
     if (!transition) {
-      halted = true;
+      haltReason = 'no-transition';
       return { config: getConfig(), status: getStatus(), stepIndex: stepCount };
     }
 
@@ -87,8 +108,8 @@ export function createTMRunner(
     stepCount++;
 
     const state = automaton.states.find((s) => s.id === currentState);
-    if (state?.isFinal) {
-      halted = true;
+    if (state?.isFinal && acceptByFinalState) {
+      haltReason = 'final-state';
     }
 
     return { config: getConfig(), status: getStatus(), stepIndex: stepCount };
@@ -112,14 +133,18 @@ export function createTMRunner(
     headPosition = 0;
     currentState = initialId;
     stepCount = 0;
-    halted = false;
+    haltReason = initialIsFinal && acceptByFinalState ? 'final-state' : null;
+    canceled = false;
   }
 
+  function cancel() { canceled = true; }
+
   return {
     step,
     run,
     reset,
-    get isHalted() { return halted; },
+    cancel,
+    get isHalted() { return getStatus() !== 'running'; },
     get isAccepted() { return getStatus() === 'accepted'; },
     get currentConfig() { return getConfig(); },
   };
diff --git a/packages/simulator/src/types.ts b/packages/simulator/src/types.ts
index 4b81b3b..c127e46 100644
--- a/packages/simulator/src/types.ts
+++ b/packages/simulator/src/types.ts
@@ -20,7 +20,15 @@ export interface SimulationRunner<TConfig> {
   step(): StepResult<TConfig>;
   run(maxSteps?: number): RunResult<TConfig>;
   reset(): void;
+  cancel(): void;
   readonly isHalted: boolean;
   readonly isAccepted: boolean;
   readonly currentConfig: TConfig;
 }
+
+export class UnsupportedSimulationError extends Error {
+  constructor(message: string) {
+    super(message);
+    this.name = 'UnsupportedSimulationError';
+  }
+}
diff --git a/packages/ui/src/components/SimulationControls.vue b/packages/ui/src/components/SimulationControls.vue
index b7c7682..88eb276 100644
--- a/packages/ui/src/components/SimulationControls.vue
+++ b/packages/ui/src/components/SimulationControls.vue
@@ -92,13 +92,17 @@ function handleNextStep() {
         class="sim-controls__result"
         :class="{
           'sim-controls__result--accepted': sim.status === 'accepted',
-          'sim-controls__result--rejected': sim.status === 'rejected' || sim.status === 'halted',
+          'sim-controls__result--rejected': sim.status !== 'running' && sim.status !== 'accepted',
         }"
       >
         {{ sim.status === 'running' ? 'Running...' :
            sim.status === 'accepted' ? 'Accepted' :
-           sim.status === 'halted' ? 'Halted' : 'Rejected' }}
+           sim.status === 'halted' ? 'Halted' :
+           sim.status === 'invalid' ? 'Invalid machine' :
+           sim.status === 'incomplete' ? 'Incomplete' :
+           sim.status === 'canceled' ? 'Canceled' : 'Rejected' }}
       </span>
+      <span v-if="sim.errorMessage" class="sim-controls__detail">{{ sim.errorMessage }}</span>
     </div>
     <div v-if="sim.isActive" class="sim-controls__speed">
       <label class="sim-controls__label">Speed</label>
diff --git a/packages/ui/src/stores/simulation.ts b/packages/ui/src/stores/simulation.ts
index 03497dd..c2f90ff 100644
--- a/packages/ui/src/stores/simulation.ts
+++ b/packages/ui/src/stores/simulation.ts
@@ -16,6 +16,7 @@ export const useSimulationStore = defineStore('simulation', () => {
   const input = ref('');
   const isRunning = ref(false);
   const status = ref<SimulationStatus | null>(null);
+  const errorMessage = ref<string | null>(null);
   const stepIndex = ref(0);
   const highlightedStates = ref<Set<string>>(new Set());
   const transitionHighlights = ref<TransitionHighlight[]>([]);
@@ -77,8 +78,9 @@ export const useSimulationStore = defineStore('simulation', () => {
     try {
       runner = createRunnerFor(automaton, input.value);
       activeAutomaton = automaton;
-    } catch {
-      status.value = 'rejected';
+    } catch (error) {
+      status.value = 'invalid';
+      errorMessage.value = error instanceof Error ? error.message : String(error);
       return;
     }
     status.value = runner.isAccepted ? 'accepted' : runner.isHalted ? 'rejected' : 'running';
@@ -144,9 +146,11 @@ export const useSimulationStore = defineStore('simulation', () => {
 
   function stop() {
     pause();
+    runner?.cancel();
     runner = null;
     activeAutomaton = null;
     status.value = null;
+    errorMessage.value = null;
     stepIndex.value = 0;
     traceSteps.value = [];
     transitionHighlights.value = [];
@@ -269,6 +273,7 @@ export const useSimulationStore = defineStore('simulation', () => {
     isRunning,
     isActive,
     status,
+    errorMessage,
     stepIndex,
     highlightedStates,
     activeTransition,

From aa9c70f6cb77e9e9a18989512dbc17268f416ca4 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:19:57 -0300
Subject: [PATCH 18/43] fix(core): separate alphabets and repair machine
 analysis

---
 ACTION_PLAN.md                                |  7 +--
 docs/COMPATIBILITY.md                         |  2 +-
 packages/core/__tests__/alphabets.test.ts     | 30 +++++++++++
 packages/core/__tests__/validation.test.ts    | 51 ++++++++++++++++++-
 packages/core/src/alphabets.ts                | 29 +++++++++++
 packages/core/src/index.ts                    |  1 +
 packages/core/src/validation.ts               | 51 +++++++++++++------
 .../simulator/__tests__/pda-runner.test.ts    |  4 +-
 .../simulator/__tests__/tm-runner.test.ts     |  5 ++
 packages/simulator/src/tm-runner.ts           |  3 ++
 10 files changed, 160 insertions(+), 23 deletions(-)
 create mode 100644 packages/core/__tests__/alphabets.test.ts
 create mode 100644 packages/core/src/alphabets.ts

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index c20ed13..1749023 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -131,9 +131,9 @@ No source or configuration files were changed during the audit. Native installer
 - [x] Replace silent branch truncation with explicit resource-limit outcomes.
 - [x] Standardize accepted, rejected, invalid, canceled, and incomplete outcomes across runners.
 - [x] Validate execution budgets, including zero/negative values, and make terminal steps idempotent.
-- [ ] Repair determinism checks and remove placeholder completeness results.
-- [ ] Separate input, stack, and tape alphabet helpers.
-- [ ] Update existing tests that encode incompatible PDA initialization assumptions.
+- [x] Repair determinism checks and remove placeholder completeness results.
+- [x] Separate input, stack, and tape alphabet helpers.
+- [x] Update existing tests that encode incompatible PDA initialization assumptions.
 
 **Acceptance criteria:** Official examples and edge cases produce expected results. Exhausted resources never count as proof of rejection. Unsupported execution modes are identified before running.
 
@@ -257,5 +257,6 @@ Before calling the automata milestone dependable:
 - Inspector transaction boundary: registered the active inspector draft with the document store and flush it before selection changes, save, New/Open, simulation start, undo, and redo. Validation: 21 UI tests passed; workspace type checks and lint passed.
 - Fair bounded exploration: deduplicated NFA/PDA configurations during breadth-first stepping, replaced PDA's silent 1,000-branch truncation with an `incomplete` result and `configuration-limit` reason, validated run budgets, and made terminal stepping idempotent. Validation: 43 simulator tests passed; simulator type checks and lint passed.
 - Execution profiles and outcomes: added terminal cancellation across runners, surfaced invalid-machine errors in the editor, implemented configurable TM final-state/halting acceptance, and reject nondeterministic TMs, disabled stay moves, and JFLAP shortcut syntax before execution when unsupported. Validation: 49 simulator and 21 UI tests passed; workspace type checks and lint passed.
+- Machine analysis: added separate input, stack, and tape alphabet helpers; made PDA determinism account for overlapping read/pop prefixes and equivalent blank spellings; implemented symbol-level FA, conservative PDA, and literal-TM completeness checks; and updated legacy PDA tests to start with JFLAP's `Z`. Validation: 51 core and 49 simulator tests passed; full workspace tests, type checks, lint, Rust format, and Rust check passed.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/docs/COMPATIBILITY.md b/docs/COMPATIBILITY.md
index dd73e61..aa46d8d 100644
--- a/docs/COMPATIBILITY.md
+++ b/docs/COMPATIBILITY.md
@@ -9,7 +9,7 @@ This table records the audited baseline. Update a row only after its independent
 | Document or feature | Import | Preservation | Execution |
 | --- | --- | --- | --- |
 | Finite automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests; representative export reopened by JFLAP 7.1 | DFA/NFA literal-string execution, including prefix-overlapping branches and epsilon closure |
-| Pushdown automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | Initial `Z`, literal read/pop/push strings, final-state acceptance; exploration limit reporting remains pending |
+| Pushdown automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | Initial `Z`, literal read/pop/push strings, final-state acceptance, deduplicated breadth-first exploration, and explicit incomplete outcomes at resource limits |
 | Single-tape Turing machines | Validated literal single-tape subset | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | Deterministic literal-symbol subset with explicit final-state/halting profiles; nondeterminism and shortcut syntax are rejected before execution |
 | Notes and transition control points | Preserved | Round-trip covered by automated tests | Layout only; editing UI is pending |
 | Multi-tape and building-block TMs | Rejected with an actionable error | Not editable | Unsupported |
diff --git a/packages/core/__tests__/alphabets.test.ts b/packages/core/__tests__/alphabets.test.ts
new file mode 100644
index 0000000..2ff9a54
--- /dev/null
+++ b/packages/core/__tests__/alphabets.test.ts
@@ -0,0 +1,30 @@
+import { describe, expect, it } from 'vitest';
+import { getInputAlphabet, getStackAlphabet, getTapeAlphabet } from '../src';
+import type { FiniteAutomaton, PushdownAutomaton, TuringMachine } from '../src';
+
+const states = [{ id: 'q0', name: 'q0', x: 0, y: 0, isInitial: true, isFinal: false }];
+
+describe('machine-specific alphabets', () => {
+  it('separates input symbols from epsilon', () => {
+    const automaton: FiniteAutomaton = { kind: 'fa', states, transitions: [
+      { id: 'a', from: 'q0', to: 'q0', read: 'ab' },
+      { id: 'epsilon', from: 'q0', to: 'q0', read: '' },
+    ] };
+    expect(getInputAlphabet(automaton)).toEqual(new Set(['a', 'b']));
+  });
+
+  it('collects PDA stack symbols separately and includes initial Z', () => {
+    const automaton: PushdownAutomaton = { kind: 'pda', states, transitions: [
+      { id: 't', from: 'q0', to: 'q0', read: 'a', pop: 'XY', push: 'Q' },
+    ] };
+    expect(getInputAlphabet(automaton)).toEqual(new Set(['a']));
+    expect(getStackAlphabet(automaton)).toEqual(new Set(['Z', 'X', 'Y', 'Q']));
+  });
+
+  it('collects tape reads, writes, and blank', () => {
+    const automaton: TuringMachine = { kind: 'turing', tapes: 1, states, transitions: [
+      { id: 't', from: 'q0', to: 'q0', read: 'a', write: 'x', move: 'R' },
+    ] };
+    expect(getTapeAlphabet(automaton)).toEqual(new Set(['\u25A1', 'a', 'x']));
+  });
+});
diff --git a/packages/core/__tests__/validation.test.ts b/packages/core/__tests__/validation.test.ts
index 927b987..c26b965 100644
--- a/packages/core/__tests__/validation.test.ts
+++ b/packages/core/__tests__/validation.test.ts
@@ -11,7 +11,7 @@ import {
   hasUnreachableStates,
   validate,
 } from '../src/validation';
-import type { AutomatonState, FATransition, FiniteAutomaton } from '../src/index';
+import type { AutomatonState, FATransition, FiniteAutomaton, PushdownAutomaton, TuringMachine } from '../src/index';
 
 function s(id: string, opts: Partial<AutomatonState> = {}): AutomatonState {
   return { id, name: `q${id}`, x: 0, y: 0, isInitial: false, isFinal: false, ...opts };
@@ -75,6 +75,29 @@ describe('validation', () => {
       );
       expect(isDeterministic(fa)).toBe(false);
     });
+
+    it('detects overlapping PDA epsilon and stack patterns', () => {
+      const pda: PushdownAutomaton = {
+        kind: 'pda',
+        states: [s('0')],
+        transitions: [
+          { id: 't0', from: '0', to: '0', read: '', pop: '', push: 'A' },
+          { id: 't1', from: '0', to: '0', read: 'a', pop: 'Z', push: '' },
+        ],
+      };
+      expect(isDeterministic(pda)).toBe(false);
+    });
+
+    it('treats empty and explicit blank TM reads as the same symbol', () => {
+      const tm: TuringMachine = {
+        kind: 'turing', tapes: 1, states: [s('0')],
+        transitions: [
+          { id: 'empty', from: '0', to: '0', read: '', write: '', move: 'R' },
+          { id: 'blank', from: '0', to: '0', read: '\u25A1', write: '', move: 'L' },
+        ],
+      };
+      expect(isDeterministic(tm)).toBe(false);
+    });
   });
 
   describe('isComplete', () => {
@@ -93,6 +116,32 @@ describe('validation', () => {
       );
       expect(isComplete(fa)).toBe(false);
     });
+
+    it('checks generalized FA completeness per input symbol', () => {
+      const fa = buildFA([s('0')], [t('t0', '0', '0', 'ab')]);
+      expect(isComplete(fa)).toBe(false);
+    });
+
+    it('checks PDA input/stack coverage instead of assuming completeness', () => {
+      const incomplete: PushdownAutomaton = {
+        kind: 'pda', states: [s('0')],
+        transitions: [{ id: 't', from: '0', to: '0', read: 'a', pop: 'Z', push: 'Z' }],
+      };
+      expect(isComplete(incomplete)).toBe(true);
+      expect(isComplete({ ...incomplete, states: [...incomplete.states, s('1')] })).toBe(false);
+    });
+
+    it('requires TM transitions for every tape symbol from every state', () => {
+      const tm: TuringMachine = {
+        kind: 'turing', tapes: 1, states: [s('0')],
+        transitions: [
+          { id: 'a', from: '0', to: '0', read: 'a', write: 'a', move: 'R' },
+          { id: 'blank', from: '0', to: '0', read: '', write: '', move: 'R' },
+        ],
+      };
+      expect(isComplete(tm)).toBe(true);
+      expect(isComplete({ ...tm, transitions: tm.transitions.slice(0, 1) })).toBe(false);
+    });
   });
 
   describe('hasUnreachableStates', () => {
diff --git a/packages/core/src/alphabets.ts b/packages/core/src/alphabets.ts
new file mode 100644
index 0000000..958ef81
--- /dev/null
+++ b/packages/core/src/alphabets.ts
@@ -0,0 +1,29 @@
+import type { AnyAutomaton, PushdownAutomaton, TuringMachine } from './types';
+
+function addSymbols(target: Set<string>, value: string) {
+  for (const symbol of value) target.add(symbol);
+}
+
+export function getInputAlphabet(automaton: AnyAutomaton): ReadonlySet<string> {
+  const alphabet = new Set<string>();
+  for (const transition of automaton.transitions) addSymbols(alphabet, transition.read);
+  return alphabet;
+}
+
+export function getStackAlphabet(automaton: PushdownAutomaton): ReadonlySet<string> {
+  const alphabet = new Set<string>(['Z']);
+  for (const transition of automaton.transitions) {
+    addSymbols(alphabet, transition.pop);
+    addSymbols(alphabet, transition.push);
+  }
+  return alphabet;
+}
+
+export function getTapeAlphabet(automaton: TuringMachine): ReadonlySet<string> {
+  const alphabet = new Set<string>(['\u25A1']);
+  for (const transition of automaton.transitions) {
+    addSymbols(alphabet, transition.read || '\u25A1');
+    addSymbols(alphabet, transition.write || '\u25A1');
+  }
+  return alphabet;
+}
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index e9a40d3..1f491e3 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -42,6 +42,7 @@ export {
 export type { ValidationDiagnostic } from './validation';
 
 export { generateStateId, generateTransitionId, createIdGenerator, resetIdCounters } from './ids';
+export { getInputAlphabet, getStackAlphabet, getTapeAlphabet } from './alphabets';
 export type { IdGenerator } from './ids';
 
 export type { Command } from './commands/types';
diff --git a/packages/core/src/validation.ts b/packages/core/src/validation.ts
index 4bf8753..1747023 100644
--- a/packages/core/src/validation.ts
+++ b/packages/core/src/validation.ts
@@ -6,6 +6,7 @@ import type {
   TuringMachine,
 } from './types';
 import { getTransitionsFrom } from './graph';
+import { getInputAlphabet, getStackAlphabet, getTapeAlphabet } from './alphabets';
 
 export interface ValidationDiagnostic {
   readonly level: 'error' | 'warning';
@@ -52,21 +53,28 @@ function checkFADeterminism(automaton: FiniteAutomaton): boolean {
 function checkPDADeterminism(automaton: PushdownAutomaton): boolean {
   for (const state of automaton.states) {
     const transitions = getTransitionsFrom(automaton, state.id);
-    for (const t of transitions) {
-      const matches = transitions.filter(
-        (other) => other.id !== t.id && other.read === t.read && other.pop === t.pop,
-      );
-      if (matches.length > 0) return false;
+    for (let i = 0; i < transitions.length; i++) {
+      for (let j = i + 1; j < transitions.length; j++) {
+        if (prefixesOverlap(transitions[i]!.read, transitions[j]!.read) &&
+            prefixesOverlap(transitions[i]!.pop, transitions[j]!.pop)) return false;
+      }
     }
   }
   return true;
 }
 
+function prefixesOverlap(left: string, right: string): boolean {
+  return left.startsWith(right) || right.startsWith(left);
+}
+
 function checkTMDeterminism(automaton: TuringMachine): boolean {
   for (const state of automaton.states) {
     const transitions = getTransitionsFrom(automaton, state.id);
     for (const t of transitions) {
-      const matches = transitions.filter((other) => other.id !== t.id && other.read === t.read);
+      const read = t.read || '\u25A1';
+      const matches = transitions.filter(
+        (other) => other.id !== t.id && (other.read || '\u25A1') === read,
+      );
       if (matches.length > 0) return false;
     }
   }
@@ -85,27 +93,38 @@ export function isComplete(automaton: AnyAutomaton): boolean {
 }
 
 function checkFACompleteness(automaton: FiniteAutomaton): boolean {
-  const alphabet = new Set<string>();
-  for (const t of automaton.transitions) {
-    if (t.read !== '') alphabet.add(t.read);
-  }
+  const alphabet = getInputAlphabet(automaton);
 
   for (const state of automaton.states) {
     const transitions = getTransitionsFrom(automaton, state.id);
-    const covered = new Set(transitions.map((t) => t.read));
     for (const symbol of alphabet) {
-      if (!covered.has(symbol)) return false;
+      if (!transitions.some((transition) => transition.read.startsWith(symbol))) return false;
     }
   }
   return true;
 }
 
-function checkPDACompleteness(_automaton: PushdownAutomaton): boolean {
-  return true;
+function checkPDACompleteness(automaton: PushdownAutomaton): boolean {
+  const inputAlphabet = [...getInputAlphabet(automaton)];
+  const stackAlphabet = [...getStackAlphabet(automaton)];
+  if (inputAlphabet.length === 0) return false;
+  return automaton.states.every((state) => {
+    const transitions = getTransitionsFrom(automaton, state.id);
+    return inputAlphabet.every((input) => stackAlphabet.every((stack) =>
+      transitions.some((transition) =>
+        (transition.read === '' || transition.read.startsWith(input)) &&
+        (transition.pop === '' || transition.pop.startsWith(stack)),
+      ),
+    ));
+  });
 }
 
-function checkTMCompleteness(_automaton: TuringMachine): boolean {
-  return true;
+function checkTMCompleteness(automaton: TuringMachine): boolean {
+  const tapeAlphabet = getTapeAlphabet(automaton);
+  return automaton.states.every((state) => {
+    const reads = new Set(getTransitionsFrom(automaton, state.id).map((transition) => transition.read || '\u25A1'));
+    return [...tapeAlphabet].every((symbol) => reads.has(symbol));
+  });
 }
 
 export function hasUnreachableStates(automaton: AnyAutomaton): boolean {
diff --git a/packages/simulator/__tests__/pda-runner.test.ts b/packages/simulator/__tests__/pda-runner.test.ts
index e99c98b..099b977 100644
--- a/packages/simulator/__tests__/pda-runner.test.ts
+++ b/packages/simulator/__tests__/pda-runner.test.ts
@@ -16,7 +16,7 @@ const t = (id: string, from: string, to: string, read: string, pop: string, push
 
 describe('PDA Runner', () => {
   // PDA for a^n b^n (n >= 0) by final state.
-  // q0: push Z (bottom marker) and move to q1
+  // q0: confirm the JFLAP-provided Z bottom marker and move to q1
   // q1: for each 'a', push A
   // q1: epsilon to q2
   // q2: for each 'b', pop A
@@ -29,7 +29,7 @@ describe('PDA Runner', () => {
       s('3', { isFinal: true }),
     ],
     [
-      t('t0', '0', '1', '', '', 'Z'),      // push bottom marker
+      t('t0', '0', '1', '', 'Z', 'Z'),      // retain the initial bottom marker
       t('t1', '1', '1', 'a', '', 'A'),      // push A for each a
       t('t2', '1', '2', '', '', ''),         // switch to matching b's
       t('t3', '2', '2', 'b', 'A', ''),      // pop A for each b
diff --git a/packages/simulator/__tests__/tm-runner.test.ts b/packages/simulator/__tests__/tm-runner.test.ts
index 2f23e79..cb4eeca 100644
--- a/packages/simulator/__tests__/tm-runner.test.ts
+++ b/packages/simulator/__tests__/tm-runner.test.ts
@@ -90,5 +90,10 @@ describe('TM Runner', () => {
       [t('t0', '0', '1', '~', '~', 'R')],
     );
     expect(() => createTMRunner(shortcut, 'a')).toThrow('shortcut syntax');
+    const multipleSymbols = buildTM(
+      [s('0', { isInitial: true }), s('1')],
+      [t('t0', '0', '1', 'ab', 'x', 'R')],
+    );
+    expect(() => createTMRunner(multipleSymbols, 'ab')).toThrow('one tape symbol');
   });
 });
diff --git a/packages/simulator/src/tm-runner.ts b/packages/simulator/src/tm-runner.ts
index f73be5f..4d3c763 100644
--- a/packages/simulator/src/tm-runner.ts
+++ b/packages/simulator/src/tm-runner.ts
@@ -25,6 +25,9 @@ export function createTMRunner(
   if (automaton.transitions.some((transition) => /[!~}]/.test(transition.read) || /[!~}]/.test(transition.write))) {
     throw new UnsupportedSimulationError('JFLAP Turing-machine shortcut syntax is not supported yet');
   }
+  if (automaton.transitions.some((transition) => transition.read.length > 1 || transition.write.length > 1)) {
+    throw new UnsupportedSimulationError('Turing transitions must read and write one tape symbol');
+  }
   if (!allowStay && automaton.transitions.some((transition) => transition.move === 'S')) {
     throw new UnsupportedSimulationError('Stay moves are disabled by this execution profile');
   }

From 9df99025c9c50de6cfe7dd22b8eec60e9690ff64 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:41:41 -0300
Subject: [PATCH 19/43] feat(simulator): expose complete execution traces

---
 .../simulator/__tests__/nfa-runner.test.ts    | 14 ++++++
 .../simulator/__tests__/pda-runner.test.ts    | 12 +++++
 .../simulator/__tests__/tm-runner.test.ts     |  8 ++++
 packages/simulator/src/dfa-runner.ts          | 25 +++++++++--
 packages/simulator/src/nfa-runner.ts          | 44 +++++++++++++++----
 packages/simulator/src/pda-runner.ts          | 37 +++++++++++++---
 packages/simulator/src/tm-runner.ts           | 26 +++++++++--
 packages/simulator/src/types.ts               | 16 +++++++
 8 files changed, 162 insertions(+), 20 deletions(-)

diff --git a/packages/simulator/__tests__/nfa-runner.test.ts b/packages/simulator/__tests__/nfa-runner.test.ts
index 9f5a146..bc6e9e6 100644
--- a/packages/simulator/__tests__/nfa-runner.test.ts
+++ b/packages/simulator/__tests__/nfa-runner.test.ts
@@ -83,4 +83,18 @@ describe('NFA Runner', () => {
     expect(createNFARunner(nfa, 'abc').run().outcome).toBe('accepted');
     expect(createNFARunner(nfa, 'ab').run().outcome).toBe('rejected');
   });
+
+  it('reports exact branch identities, transition IDs, and an accepting witness', () => {
+    const nfa = buildNFA(
+      [s('0', { isInitial: true }), s('1'), s('2'), s('3', { isFinal: true })],
+      [t('epsilon', '0', '1', ''), t('left', '1', '2', 'a'), t('right', '1', '3', 'a')],
+    );
+    const runner = createNFARunner(nfa, 'a');
+
+    expect(runner.currentStep.transitionIds).toEqual(['epsilon']);
+    const result = runner.step();
+    expect(result.transitionIds).toEqual(['left', 'right']);
+    expect(result.configurations.map((branch) => branch.id)).toEqual(['2\u00001', '3\u00001']);
+    expect(result.acceptingPath).toEqual(['epsilon', 'right']);
+  });
 });
diff --git a/packages/simulator/__tests__/pda-runner.test.ts b/packages/simulator/__tests__/pda-runner.test.ts
index 099b977..29d7670 100644
--- a/packages/simulator/__tests__/pda-runner.test.ts
+++ b/packages/simulator/__tests__/pda-runner.test.ts
@@ -93,4 +93,16 @@ describe('PDA Runner', () => {
     expect(createPDARunner(stringPda, 'abcd').run().outcome).toBe('accepted');
     expect(createPDARunner(stringPda, 'abd').run().outcome).toBe('rejected');
   });
+
+  it('retains every active stack configuration and its transition path', () => {
+    const branching = buildPDA(
+      [s('0', { isInitial: true }), s('1', { isFinal: true }), s('2')],
+      [t('accept', '0', '1', 'a', '', 'A'), t('other', '0', '2', 'a', '', 'B')],
+    );
+    const result = createPDARunner(branching, 'a').step();
+
+    expect(result.transitionIds).toEqual(['accept', 'other']);
+    expect(result.configurations.map((branch) => branch.config.stack)).toEqual([['Z', 'A'], ['Z', 'B']]);
+    expect(result.acceptingPath).toEqual(['accept']);
+  });
 });
diff --git a/packages/simulator/__tests__/tm-runner.test.ts b/packages/simulator/__tests__/tm-runner.test.ts
index cb4eeca..e994104 100644
--- a/packages/simulator/__tests__/tm-runner.test.ts
+++ b/packages/simulator/__tests__/tm-runner.test.ts
@@ -96,4 +96,12 @@ describe('TM Runner', () => {
     );
     expect(() => createTMRunner(multipleSymbols, 'ab')).toThrow('one tape symbol');
   });
+
+  it('includes the initial tape snapshot and exact transition path', () => {
+    const runner = createTMRunner(tm, '01');
+    expect(runner.currentStep.configurations[0]?.config.tape).toEqual(['0', '1']);
+    expect(runner.currentStep.transitionIds).toEqual([]);
+    expect(runner.step().transitionIds).toEqual(['t0']);
+    expect(runner.step().configurations[0]?.path).toEqual(['t0', 't1']);
+  });
 });
diff --git a/packages/simulator/src/dfa-runner.ts b/packages/simulator/src/dfa-runner.ts
index d69acb9..25d2a4c 100644
--- a/packages/simulator/src/dfa-runner.ts
+++ b/packages/simulator/src/dfa-runner.ts
@@ -19,6 +19,8 @@ export function createDFARunner(
   let stepIndex = 0;
   let halted = false;
   let canceled = false;
+  let path: string[] = [];
+  let lastTransitionId: string | undefined;
 
   function getStatus(): SimulationStatus {
     if (canceled) return 'canceled';
@@ -31,7 +33,7 @@ export function createDFARunner(
 
   function step(): StepResult<DFAConfig> {
     if (getStatus() !== 'running') {
-      return { config, status: getStatus(), stepIndex };
+      return snapshot();
     }
 
     const transition = automaton.transitions.find(
@@ -40,7 +42,7 @@ export function createDFARunner(
 
     if (!transition) {
       halted = true;
-      return { config, status: 'rejected', stepIndex };
+      return snapshot();
     }
 
     config = {
@@ -48,8 +50,22 @@ export function createDFARunner(
       remainingInput: config.remainingInput.slice(transition.read.length),
       inputIndex: config.inputIndex + transition.read.length,
     };
+    path = [...path, transition.id];
+    lastTransitionId = transition.id;
     stepIndex++;
-    return { config, status: getStatus(), stepIndex };
+    return snapshot([transition.id]);
+  }
+
+  function snapshot(transitionIds: readonly string[] = []): StepResult<DFAConfig> {
+    const status = getStatus();
+    return {
+      config,
+      configurations: [{ id: `${config.currentState}\u0000${config.inputIndex}`, config, transitionId: lastTransitionId, path }],
+      transitionIds,
+      acceptingPath: status === 'accepted' ? path : undefined,
+      status,
+      stepIndex,
+    };
   }
 
   function run(maxSteps = 10000): RunResult<DFAConfig> {
@@ -70,6 +86,8 @@ export function createDFARunner(
     stepIndex = 0;
     halted = false;
     canceled = false;
+    path = [];
+    lastTransitionId = undefined;
   }
 
   function cancel() { canceled = true; }
@@ -82,5 +100,6 @@ export function createDFARunner(
     get isHalted() { return canceled || halted || config.remainingInput.length === 0; },
     get isAccepted() { return getStatus() === 'accepted'; },
     get currentConfig() { return config; },
+    get currentStep() { return snapshot(); },
   };
 }
diff --git a/packages/simulator/src/nfa-runner.ts b/packages/simulator/src/nfa-runner.ts
index a5d7bd3..215b40f 100644
--- a/packages/simulator/src/nfa-runner.ts
+++ b/packages/simulator/src/nfa-runner.ts
@@ -6,6 +6,8 @@ import { validateRunBudget } from './run-budget';
 interface Branch {
   state: string;
   inputIndex: number;
+  transitionId?: string;
+  path: string[];
 }
 
 export function createNFARunner(
@@ -19,25 +21,27 @@ export function createNFARunner(
     return `${branch.state}\u0000${branch.inputIndex}`;
   }
 
-  function epsilonClosure(seed: readonly Branch[]): Branch[] {
+  function epsilonClosure(seed: readonly Branch[], executed?: Set<string>): Branch[] {
     const closure = new Map(seed.map((branch) => [branchKey(branch), branch]));
     const queue = [...seed];
     while (queue.length > 0) {
       const current = queue.shift()!;
       for (const transition of automaton.transitions) {
         if (transition.from !== current.state || transition.read !== '') continue;
-        const next = { state: transition.to, inputIndex: current.inputIndex };
+        const next = { state: transition.to, inputIndex: current.inputIndex, transitionId: transition.id, path: [...current.path, transition.id] };
         const key = branchKey(next);
         if (!closure.has(key)) {
           closure.set(key, next);
           queue.push(next);
+          executed?.add(transition.id);
         }
       }
     }
     return [...closure.values()];
   }
 
-  const initialBranches = epsilonClosure([{ state: initialState.id, inputIndex: 0 }]);
+  const initialTransitionIds = new Set<string>();
+  const initialBranches = epsilonClosure([{ state: initialState.id, inputIndex: 0, path: [] }], initialTransitionIds);
   let branches = initialBranches;
   let stepIndex = 0;
   let canceled = false;
@@ -77,10 +81,11 @@ export function createNFARunner(
   function step(): StepResult<NFAConfig> {
     const currentStatus = getStatus();
     if (currentStatus !== 'running') {
-      return { config: toPublicConfig(), status: currentStatus, stepIndex };
+      return snapshot();
     }
 
     const next = new Map<string, Branch>();
+    const executed = new Set<string>();
     for (const branch of branches) {
       for (const transition of automaton.transitions) {
         if (
@@ -91,14 +96,36 @@ export function createNFARunner(
           const candidate = {
             state: transition.to,
             inputIndex: branch.inputIndex + transition.read.length,
+            transitionId: transition.id,
+            path: [...branch.path, transition.id],
           };
-          next.set(branchKey(candidate), candidate);
+          if (!next.has(branchKey(candidate))) next.set(branchKey(candidate), candidate);
+          executed.add(transition.id);
         }
       }
     }
-    branches = epsilonClosure([...next.values()]);
+    branches = epsilonClosure([...next.values()], executed);
     stepIndex++;
-    return { config: toPublicConfig(), status: getStatus(), stepIndex };
+    return snapshot([...executed]);
+  }
+
+  function snapshot(transitionIds: readonly string[] = []): StepResult<NFAConfig> {
+    const config = toPublicConfig();
+    const status = getStatus();
+    const accepting = branches.find(isAccepting);
+    return {
+      config,
+      configurations: branches.map((branch) => ({
+        id: branchKey(branch),
+        config: { activeStates: new Set([branch.state]), remainingInput: input.slice(branch.inputIndex), inputIndex: branch.inputIndex },
+        transitionId: branch.transitionId,
+        path: branch.path,
+      })),
+      transitionIds,
+      acceptingPath: status === 'accepted' ? accepting?.path : undefined,
+      status,
+      stepIndex,
+    };
   }
 
   function run(maxSteps = 10000): RunResult<NFAConfig> {
@@ -115,7 +142,7 @@ export function createNFARunner(
   }
 
   function reset() {
-    branches = initialBranches;
+    branches = initialBranches.map((branch) => ({ ...branch, path: [...branch.path] }));
     stepIndex = 0;
     canceled = false;
   }
@@ -130,5 +157,6 @@ export function createNFARunner(
     get isHalted() { return getStatus() !== 'running'; },
     get isAccepted() { return getStatus() === 'accepted'; },
     get currentConfig() { return toPublicConfig(); },
+    get currentStep() { return snapshot(stepIndex === 0 ? [...initialTransitionIds] : []); },
   };
 }
diff --git a/packages/simulator/src/pda-runner.ts b/packages/simulator/src/pda-runner.ts
index 117a9b0..16c1130 100644
--- a/packages/simulator/src/pda-runner.ts
+++ b/packages/simulator/src/pda-runner.ts
@@ -8,6 +8,8 @@ interface PDAConfiguration {
   remaining: string;
   inputIndex: number;
   stack: string[];
+  transitionId?: string;
+  path: string[];
 }
 
 const MAX_CONFIGS = 1000;
@@ -21,7 +23,7 @@ export function createPDARunner(
   const initialId = initialState.id;
 
   let configs: PDAConfiguration[] = [
-    { state: initialId, remaining: input, inputIndex: 0, stack: ['Z'] },
+    { state: initialId, remaining: input, inputIndex: 0, stack: ['Z'], path: [] },
   ];
   let stepIndex = 0;
   let accepted = false;
@@ -83,10 +85,11 @@ export function createPDARunner(
   function step(): StepResult<PDAConfig> {
     const currentStatus = getStatus();
     if (currentStatus !== 'running') {
-      return { config: toPublicConfig(), status: currentStatus, stepIndex };
+      return snapshot();
     }
 
     const nextConfigs = new Map<string, PDAConfiguration>();
+    const executed = new Set<string>();
 
     for (const c of configs) {
       for (const t of automaton.transitions) {
@@ -110,11 +113,14 @@ export function createPDARunner(
             remaining: c.remaining.slice(consumed),
             inputIndex: c.inputIndex + consumed,
             stack: newStack,
+            transitionId: t.id,
+            path: [...c.path, t.id],
           };
-          nextConfigs.set(configurationKey(next), next);
+          if (!nextConfigs.has(configurationKey(next))) nextConfigs.set(configurationKey(next), next);
+          executed.add(t.id);
           if (nextConfigs.size > MAX_CONFIGS) {
             configurationLimitReached = true;
-            return { config: toPublicConfig(), status: 'incomplete', stepIndex };
+            return snapshot([...executed]);
           }
         }
       }
@@ -133,7 +139,25 @@ export function createPDARunner(
       }
     }
 
-    return { config: toPublicConfig(), status: getStatus(), stepIndex };
+    return snapshot([...executed]);
+  }
+
+  function toBranchConfig(config: PDAConfiguration): PDAConfig {
+    return { currentState: config.state, remainingInput: config.remaining, inputIndex: config.inputIndex, stack: [...config.stack] };
+  }
+
+  function snapshot(transitionIds: readonly string[] = []): StepResult<PDAConfig> {
+    const config = toPublicConfig();
+    const status = getStatus();
+    const accepting = configs.find((candidate) => candidate.remaining.length === 0 && automaton.states.some((state) => state.id === candidate.state && state.isFinal));
+    return {
+      config,
+      configurations: configs.map((candidate) => ({ id: configurationKey(candidate), config: toBranchConfig(candidate), transitionId: candidate.transitionId, path: candidate.path })),
+      transitionIds,
+      acceptingPath: status === 'accepted' ? accepting?.path : undefined,
+      status,
+      stepIndex,
+    };
   }
 
   function run(maxSteps = 10000): RunResult<PDAConfig> {
@@ -153,7 +177,7 @@ export function createPDARunner(
   }
 
   function reset() {
-    configs = [{ state: initialId, remaining: input, inputIndex: 0, stack: ['Z'] }];
+    configs = [{ state: initialId, remaining: input, inputIndex: 0, stack: ['Z'], path: [] }];
     stepIndex = 0;
     accepted = false;
     configurationLimitReached = false;
@@ -170,5 +194,6 @@ export function createPDARunner(
     get isHalted() { return getStatus() !== 'running'; },
     get isAccepted() { return accepted || getStatus() === 'accepted'; },
     get currentConfig() { return toPublicConfig(); },
+    get currentStep() { return snapshot(); },
   };
 }
diff --git a/packages/simulator/src/tm-runner.ts b/packages/simulator/src/tm-runner.ts
index 4d3c763..bb30d0a 100644
--- a/packages/simulator/src/tm-runner.ts
+++ b/packages/simulator/src/tm-runner.ts
@@ -45,6 +45,8 @@ export function createTMRunner(
   let haltReason: 'final-state' | 'no-transition' | null =
     initialIsFinal && acceptByFinalState ? 'final-state' : null;
   let canceled = false;
+  let path: string[] = [];
+  let lastTransitionId: string | undefined;
 
   function readTape(): string {
     if (headPosition < 0 || headPosition >= tape.length) return BLANK;
@@ -78,7 +80,7 @@ export function createTMRunner(
 
   function step(): StepResult<TMConfig> {
     if (getStatus() !== 'running') {
-      return { config: getConfig(), status: getStatus(), stepIndex: stepCount };
+      return snapshot();
     }
 
     const currentSymbol = readTape();
@@ -91,7 +93,7 @@ export function createTMRunner(
 
     if (!transition) {
       haltReason = 'no-transition';
-      return { config: getConfig(), status: getStatus(), stepIndex: stepCount };
+      return snapshot();
     }
 
     writeTape(transition.write || BLANK);
@@ -109,13 +111,28 @@ export function createTMRunner(
     }
 
     stepCount++;
+    path = [...path, transition.id];
+    lastTransitionId = transition.id;
 
     const state = automaton.states.find((s) => s.id === currentState);
     if (state?.isFinal && acceptByFinalState) {
       haltReason = 'final-state';
     }
 
-    return { config: getConfig(), status: getStatus(), stepIndex: stepCount };
+    return snapshot([transition.id]);
+  }
+
+  function snapshot(transitionIds: readonly string[] = []): StepResult<TMConfig> {
+    const config = getConfig();
+    const status = getStatus();
+    return {
+      config,
+      configurations: [{ id: `${currentState}\u0000${headPosition}\u0000${stepCount}`, config, transitionId: lastTransitionId, path }],
+      transitionIds,
+      acceptingPath: status === 'accepted' ? path : undefined,
+      status,
+      stepIndex: stepCount,
+    };
   }
 
   function run(maxSteps = 10000): RunResult<TMConfig> {
@@ -138,6 +155,8 @@ export function createTMRunner(
     stepCount = 0;
     haltReason = initialIsFinal && acceptByFinalState ? 'final-state' : null;
     canceled = false;
+    path = [];
+    lastTransitionId = undefined;
   }
 
   function cancel() { canceled = true; }
@@ -150,5 +169,6 @@ export function createTMRunner(
     get isHalted() { return getStatus() !== 'running'; },
     get isAccepted() { return getStatus() === 'accepted'; },
     get currentConfig() { return getConfig(); },
+    get currentStep() { return snapshot(); },
   };
 }
diff --git a/packages/simulator/src/types.ts b/packages/simulator/src/types.ts
index c127e46..6547444 100644
--- a/packages/simulator/src/types.ts
+++ b/packages/simulator/src/types.ts
@@ -2,8 +2,23 @@ export type SimulationStatus = 'running' | 'accepted' | 'rejected' | 'halted' |
 export type SimulationRunOutcome = Exclude<SimulationStatus, 'running'>;
 export type SimulationIncompleteReason = 'step-limit' | 'configuration-limit';
 
+export interface SimulationBranch<TConfig> {
+  /** Stable identity for this configuration within a trace. */
+  id: string;
+  config: TConfig;
+  /** Transition used to create this configuration in the current step. */
+  transitionId?: string;
+  /** Complete transition path from the initial configuration. */
+  path: readonly string[];
+}
+
 export interface StepResult<TConfig> {
   config: TConfig;
+  configurations: readonly SimulationBranch<TConfig>[];
+  /** Exact transitions executed while producing this snapshot. */
+  transitionIds: readonly string[];
+  /** One complete accepting witness, when the snapshot is accepting. */
+  acceptingPath?: readonly string[];
   status: SimulationStatus;
   stepIndex: number;
 }
@@ -24,6 +39,7 @@ export interface SimulationRunner<TConfig> {
   readonly isHalted: boolean;
   readonly isAccepted: boolean;
   readonly currentConfig: TConfig;
+  readonly currentStep: StepResult<TConfig>;
 }
 
 export class UnsupportedSimulationError extends Error {

From 07766fc8c4cfe9dd2a021379fa2c94a81f18ac53 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:44:49 -0300
Subject: [PATCH 20/43] feat(ui): add complete simulation replay

---
 packages/ui/__tests__/simulation.test.ts      |  41 +++
 .../ui/src/components/SimulationControls.vue  | 100 ++++++-
 packages/ui/src/stores/simulation.ts          | 265 ++++++------------
 3 files changed, 229 insertions(+), 177 deletions(-)

diff --git a/packages/ui/__tests__/simulation.test.ts b/packages/ui/__tests__/simulation.test.ts
index a9aa419..5e68f92 100644
--- a/packages/ui/__tests__/simulation.test.ts
+++ b/packages/ui/__tests__/simulation.test.ts
@@ -1,7 +1,9 @@
 import { beforeEach, describe, expect, it } from 'vitest';
+import { nextTick } from 'vue';
 import { createPinia, setActivePinia } from 'pinia';
 import type { FiniteAutomaton } from '@jauto/core';
 import { useSimulationStore } from '../src/stores/simulation';
+import { useDocumentStore } from '../src/stores/document';
 
 function finiteAutomaton(
   transitions: FiniteAutomaton['transitions'],
@@ -57,4 +59,43 @@ describe('simulation store finite-automaton routing', () => {
 
     expect(simulation.status).toBe('accepted');
   });
+
+  it('replays cached snapshots without moving the execution head', () => {
+    const simulation = useSimulationStore();
+    const automaton = finiteAutomaton([
+      { id: 'first', from: 'q0', to: 'q1', read: 'a' },
+      { id: 'second', from: 'q1', to: 'q2', read: 'b' },
+    ]);
+    simulation.input = 'ab';
+    simulation.start(automaton);
+    simulation.nextStep(automaton);
+    simulation.nextStep(automaton);
+
+    expect(simulation.executionIndex).toBe(2);
+    expect(simulation.transitionHighlights.map((item) => item.transitionId)).toEqual(['second']);
+    simulation.previousStep();
+    expect(simulation.activeTraceIndex).toBe(1);
+    expect(simulation.executionIndex).toBe(2);
+    expect(simulation.transitionHighlights.map((item) => item.transitionId)).toEqual(['first']);
+    simulation.nextStep(automaton);
+    expect(simulation.traceSteps).toHaveLength(3);
+  });
+
+  it('keeps layout edits active and invalidates semantic edits', async () => {
+    const document = useDocumentStore();
+    const simulation = useSimulationStore();
+    const automaton = finiteAutomaton([{ id: 't0', from: 'q0', to: 'q2', read: 'a' }]);
+    document.loadAutomaton(automaton);
+    simulation.input = 'a';
+    simulation.start(document.automaton);
+
+    document.setAutomaton({ ...automaton, states: automaton.states.map((state) => ({ ...state, x: state.x + 10 })) });
+    await nextTick();
+    expect(simulation.status).toBe('running');
+
+    document.setAutomaton({ ...document.automaton, transitions: [{ ...document.automaton.transitions[0]!, read: 'b' }] });
+    await nextTick();
+    expect(simulation.status).toBe('invalid');
+    expect(simulation.errorMessage).toContain('machine changed');
+  });
 });
diff --git a/packages/ui/src/components/SimulationControls.vue b/packages/ui/src/components/SimulationControls.vue
index 88eb276..992cc08 100644
--- a/packages/ui/src/components/SimulationControls.vue
+++ b/packages/ui/src/components/SimulationControls.vue
@@ -22,6 +22,20 @@ function handleReset() {
 function handleNextStep() {
   sim.nextStep(docStore.automaton);
 }
+
+function stateText(config: Record<string, unknown>): string {
+  if (typeof config.currentState === 'string') return config.currentState;
+  if (config.activeStates instanceof Set) return [...config.activeStates].join(', ');
+  return '—';
+}
+
+function consumedText(config: Record<string, unknown>): string {
+  return sim.input.slice(0, Number(config.inputIndex) || 0) || 'ε';
+}
+
+function remainingText(config: Record<string, unknown>): string {
+  return typeof config.remainingInput === 'string' ? config.remainingInput || 'ε' : '—';
+}
 </script>
 
 <template>
@@ -85,8 +99,8 @@ function handleNextStep() {
     </div>
     <div v-if="sim.isActive" class="sim-controls__status">
       <span class="sim-controls__step">Step {{ sim.stepIndex }}</span>
-      <span v-if="sim.activeTransition" class="sim-controls__detail">
-        {{ sim.activeTransition.label }}
+      <span v-if="sim.transitionHighlights.length" class="sim-controls__detail">
+        {{ sim.transitionHighlights.map((transition) => `${transition.transitionId}: ${transition.label}`).join(' | ') }}
       </span>
       <span
         class="sim-controls__result"
@@ -104,6 +118,32 @@ function handleNextStep() {
       </span>
       <span v-if="sim.errorMessage" class="sim-controls__detail">{{ sim.errorMessage }}</span>
     </div>
+    <div v-if="sim.isActive && sim.activeConfigurations.length" class="sim-controls__trace" aria-live="polite">
+      <div class="sim-controls__trace-title">
+        Active configurations ({{ sim.activeConfigurations.length }})
+        <span v-if="sim.activeTraceIndex < sim.executionIndex">
+          · replay {{ sim.activeTraceIndex }}/{{ sim.executionIndex }}
+        </span>
+      </div>
+      <div class="sim-controls__branches">
+        <div v-for="branch in sim.activeConfigurations" :key="branch.id" class="sim-controls__branch">
+          <strong>{{ branch.id }}</strong>
+          <span>state {{ stateText(branch.config) }}</span>
+          <span v-if="'inputIndex' in branch.config">consumed {{ consumedText(branch.config) }} · remaining {{ remainingText(branch.config) }}</span>
+          <span v-if="Array.isArray(branch.config.stack)">stack [{{ branch.config.stack.join(', ') }}]</span>
+          <span v-if="Array.isArray(branch.config.tape)" class="sim-controls__tape">
+            tape
+            <template v-for="(symbol, index) in branch.config.tape" :key="index">
+              <b :class="{ 'sim-controls__head': index === branch.config.headPosition }">{{ symbol }}</b>
+            </template>
+          </span>
+          <span>path {{ branch.path.length ? branch.path.join(' → ') : 'initial' }}</span>
+        </div>
+      </div>
+      <div v-if="sim.acceptingPath.length" class="sim-controls__witness">
+        Accepting witness: {{ sim.acceptingPath.join(' → ') }}
+      </div>
+    </div>
     <div v-if="sim.isActive" class="sim-controls__speed">
       <label class="sim-controls__label">Speed</label>
       <input
@@ -250,4 +290,60 @@ function handleNextStep() {
   font-family: var(--font-mono);
   width: 50px;
 }
+
+.sim-controls__trace {
+  display: grid;
+  gap: 6px;
+  min-width: 0;
+}
+
+.sim-controls__trace-title,
+.sim-controls__witness {
+  color: var(--color-text-secondary);
+  font-size: 11px;
+  font-weight: 600;
+}
+
+.sim-controls__branches {
+  display: flex;
+  gap: 6px;
+  overflow-x: auto;
+  padding-bottom: 2px;
+}
+
+.sim-controls__branch {
+  display: grid;
+  gap: 2px;
+  min-width: 180px;
+  padding: 6px 8px;
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-sm);
+  background: var(--color-bg);
+  color: var(--color-text-secondary);
+  font: 11px/1.35 var(--font-mono);
+}
+
+.sim-controls__tape {
+  display: flex;
+  align-items: center;
+  gap: 2px;
+}
+
+.sim-controls__tape b {
+  min-width: 17px;
+  padding: 1px 3px;
+  border: 1px solid var(--color-border);
+  text-align: center;
+}
+
+.sim-controls__tape .sim-controls__head {
+  border-color: var(--color-primary);
+  background: var(--color-bg-tertiary);
+  color: var(--color-primary);
+}
+
+.sim-controls__witness {
+  color: var(--color-success);
+  font-family: var(--font-mono);
+}
 </style>
diff --git a/packages/ui/src/stores/simulation.ts b/packages/ui/src/stores/simulation.ts
index c2f90ff..352b94d 100644
--- a/packages/ui/src/stores/simulation.ts
+++ b/packages/ui/src/stores/simulation.ts
@@ -1,9 +1,10 @@
 import { defineStore } from 'pinia';
-import { ref, computed, watch } from 'vue';
+import { computed, ref, watch } from 'vue';
 import type { SimulationRunner, StepResult, SimulationStatus } from '@jauto/simulator';
 import { createDFARunner, createNFARunner, createPDARunner, createTMRunner } from '@jauto/simulator';
 import { isDeterministic } from '@jauto/core';
 import type { AnyAutomaton, AnyTransition, PushdownAutomaton, TuringMachine } from '@jauto/core';
+import { useDocumentStore } from './document';
 
 export interface TransitionHighlight {
   transitionId: string;
@@ -13,19 +14,21 @@ export interface TransitionHighlight {
 }
 
 export const useSimulationStore = defineStore('simulation', () => {
+  const document = useDocumentStore();
   const input = ref('');
   const isRunning = ref(false);
   const status = ref<SimulationStatus | null>(null);
   const errorMessage = ref<string | null>(null);
   const stepIndex = ref(0);
   const highlightedStates = ref<Set<string>>(new Set());
-  const transitionHighlights = ref<TransitionHighlight[]>([]);
   const activeTraceIndex = ref(-1);
   const speed = ref(500);
 
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   let runner: SimulationRunner<any> | null = null;
   let activeAutomaton: AnyAutomaton | null = null;
+  let activeSemanticSignature: string | null = null;
+  let executionStatus: SimulationStatus | null = null;
   let intervalId: ReturnType<typeof setInterval> | null = null;
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   const traceSteps = ref<StepResult<any>[]>([]);
@@ -33,9 +36,7 @@ export const useSimulationStore = defineStore('simulation', () => {
   function createRunnerFor(automaton: AnyAutomaton, inputStr: string) {
     switch (automaton.kind) {
       case 'fa':
-        return isDeterministic(automaton)
-          ? createDFARunner(automaton, inputStr)
-          : createNFARunner(automaton, inputStr);
+        return isDeterministic(automaton) ? createDFARunner(automaton, inputStr) : createNFARunner(automaton, inputStr);
       case 'pda':
         return createPDARunner(automaton as PushdownAutomaton, inputStr);
       case 'turing':
@@ -43,32 +44,34 @@ export const useSimulationStore = defineStore('simulation', () => {
     }
   }
 
-  const activeTransition = computed(() => {
-    if (activeTraceIndex.value < 0) return null;
-    return transitionHighlights.value[activeTraceIndex.value] ?? null;
+  const activeSnapshot = computed(() => traceSteps.value[activeTraceIndex.value] ?? null);
+  const executionIndex = computed(() => traceSteps.value.length - 1);
+  const transitionHighlights = computed<TransitionHighlight[]>(() => {
+    if (!activeAutomaton || !activeSnapshot.value) return [];
+    const ids = new Set(activeSnapshot.value.transitionIds);
+    return activeAutomaton.transitions.filter((transition) => ids.has(transition.id)).map(toHighlight);
   });
+  const activeTransition = computed(() => transitionHighlights.value[0] ?? null);
+  const activeConfigurations = computed(() => activeSnapshot.value?.configurations ?? []);
+  const acceptingPath = computed(() => activeSnapshot.value?.acceptingPath ?? []);
 
-  function updateHighlights() {
-    if (!runner) {
-      highlightedStates.value = new Set();
-      return;
-    }
-
-    if (activeTransition.value) {
-      highlightedStates.value = new Set([
-        activeTransition.value.sourceStateId,
-        activeTransition.value.targetStateId,
-      ]);
-      return;
-    }
+  function toHighlight(transition: AnyTransition): TransitionHighlight {
+    return { transitionId: transition.id, sourceStateId: transition.from, targetStateId: transition.to, label: getTransitionLabel(transition) };
+  }
 
-    const config = runner.currentConfig;
+  function displaySnapshot(index: number) {
+    const snapshot = traceSteps.value[index];
+    if (!snapshot) return;
+    activeTraceIndex.value = index;
+    stepIndex.value = snapshot.stepIndex;
+    status.value = snapshot.status;
     const states = new Set<string>();
-    if ('currentState' in config && config.currentState) {
-      states.add(config.currentState as string);
-    }
-    if ('activeStates' in config && config.activeStates instanceof Set) {
-      for (const s of config.activeStates) states.add(s as string);
+    for (const branch of snapshot.configurations) {
+      const config = branch.config as Record<string, unknown>;
+      if (typeof config.currentState === 'string' && config.currentState) states.add(config.currentState);
+      if (config.activeStates instanceof Set) {
+        for (const state of config.activeStates) if (typeof state === 'string') states.add(state);
+      }
     }
     highlightedStates.value = states;
   }
@@ -78,61 +81,48 @@ export const useSimulationStore = defineStore('simulation', () => {
     try {
       runner = createRunnerFor(automaton, input.value);
       activeAutomaton = automaton;
+      activeSemanticSignature = semanticSignature(automaton);
     } catch (error) {
       status.value = 'invalid';
       errorMessage.value = error instanceof Error ? error.message : String(error);
       return;
     }
-    status.value = runner.isAccepted ? 'accepted' : runner.isHalted ? 'rejected' : 'running';
-    stepIndex.value = 0;
-    traceSteps.value = [];
-    transitionHighlights.value = [];
-    activeTraceIndex.value = -1;
-    updateHighlights();
+    const initial = runner.currentStep;
+    traceSteps.value = [initial];
+    executionStatus = initial.status;
+    errorMessage.value = null;
+    displaySnapshot(0);
   }
 
-  function step(automaton: AnyAutomaton) {
-    if (!runner || status.value !== 'running') return;
-    const previousConfig = runner.currentConfig;
+  function executeStep() {
+    if (!runner || executionStatus !== 'running') return;
     const result = runner.step();
-    const highlight = inferTransitionHighlight(automaton, previousConfig, result.config);
     traceSteps.value = [...traceSteps.value, result];
-    transitionHighlights.value = highlight
-      ? [...transitionHighlights.value, highlight]
-      : transitionHighlights.value;
-    activeTraceIndex.value = transitionHighlights.value.length - 1;
-    stepIndex.value = result.stepIndex;
-    status.value = result.status;
-    updateHighlights();
+    executionStatus = result.status;
+    displaySnapshot(traceSteps.value.length - 1);
   }
 
   function nextStep(automaton: AnyAutomaton) {
-    if (activeTraceIndex.value < transitionHighlights.value.length - 1) {
-      activeTraceIndex.value++;
-      stepIndex.value = activeTraceIndex.value + 1;
-      updateHighlights();
+    activeAutomaton = automaton;
+    if (activeTraceIndex.value < executionIndex.value) {
+      displaySnapshot(activeTraceIndex.value + 1);
       return;
     }
-    step(automaton);
+    executeStep();
   }
 
   function previousStep() {
-    if (activeTraceIndex.value <= 0) return;
-    activeTraceIndex.value--;
-    stepIndex.value = activeTraceIndex.value + 1;
-    updateHighlights();
+    if (activeTraceIndex.value > 0) displaySnapshot(activeTraceIndex.value - 1);
   }
 
   function play(automaton: AnyAutomaton) {
     if (!runner) start(automaton);
-    if (status.value !== 'running') return;
+    if (!runner || (activeTraceIndex.value >= executionIndex.value && executionStatus !== 'running')) return;
     activeAutomaton = automaton;
     isRunning.value = true;
     intervalId = setInterval(() => {
-      if (activeAutomaton) step(activeAutomaton);
-      if (status.value !== 'running') {
-        pause();
-      }
+      if (activeAutomaton) nextStep(activeAutomaton);
+      if (activeTraceIndex.value >= executionIndex.value && executionStatus !== 'running') pause();
     }, speed.value);
   }
 
@@ -149,147 +139,72 @@ export const useSimulationStore = defineStore('simulation', () => {
     runner?.cancel();
     runner = null;
     activeAutomaton = null;
+    activeSemanticSignature = null;
+    executionStatus = null;
     status.value = null;
     errorMessage.value = null;
     stepIndex.value = 0;
     traceSteps.value = [];
-    transitionHighlights.value = [];
     activeTraceIndex.value = -1;
     highlightedStates.value = new Set();
   }
 
+  function invalidate(message = 'The machine changed. Restart the simulation to use the new definition.') {
+    if (!runner) return;
+    pause();
+    runner.cancel();
+    runner = null;
+    executionStatus = 'invalid';
+    status.value = 'invalid';
+    errorMessage.value = message;
+  }
+
   function reset(automaton: AnyAutomaton) {
     stop();
     start(automaton);
   }
 
   watch(speed, () => {
-    if (isRunning.value && intervalId !== null) {
-      clearInterval(intervalId);
-      intervalId = setInterval(() => {
-        if (activeAutomaton) step(activeAutomaton);
-        if (status.value !== 'running') pause();
-      }, speed.value);
-    }
+    if (!isRunning.value || intervalId === null) return;
+    clearInterval(intervalId);
+    intervalId = setInterval(() => {
+      if (activeAutomaton) nextStep(activeAutomaton);
+      if (activeTraceIndex.value >= executionIndex.value && executionStatus !== 'running') pause();
+    }, speed.value);
+  });
+
+  watch(() => document.automaton, (automaton) => {
+    if (!runner || activeSemanticSignature === null) return;
+    const nextSignature = semanticSignature(automaton);
+    if (nextSignature !== activeSemanticSignature) invalidate();
+    else activeAutomaton = automaton;
   });
 
   const isActive = computed(() => status.value !== null);
   const canGoPrevious = computed(() => activeTraceIndex.value > 0);
-  const canGoNext = computed(
-    () => activeTraceIndex.value < transitionHighlights.value.length - 1 || status.value === 'running',
-  );
-
-  function inferTransitionHighlight(
-    automaton: AnyAutomaton,
-    previousConfig: unknown,
-    nextConfig: unknown,
-  ): TransitionHighlight | null {
-    const transition = findTransitionForStep(automaton, previousConfig, nextConfig);
-    if (!transition) return null;
-    return {
-      transitionId: transition.id,
-      sourceStateId: transition.from,
-      targetStateId: transition.to,
-      label: getTransitionLabel(transition),
-    };
-  }
-
-  function findTransitionForStep(
-    automaton: AnyAutomaton,
-    previousConfig: unknown,
-    nextConfig: unknown,
-  ): AnyTransition | null {
-    if (!hasCurrentState(previousConfig) || !hasCurrentState(nextConfig)) return null;
-    const candidates = automaton.transitions.filter(
-      (t) => t.from === previousConfig.currentState && t.to === nextConfig.currentState,
-    );
-    if (candidates.length === 0) return null;
-
-    if (automaton.kind === 'fa' || automaton.kind === 'pda') {
-      const consumed = getInputIndex(nextConfig) - getInputIndex(previousConfig);
-      const read = consumed > 0 ? getRemainingInput(previousConfig)[0] ?? '' : '';
-      return candidates.find((t) => 'read' in t && t.read === read) ?? candidates[0] ?? null;
-    }
-
-    if (automaton.kind === 'turing') {
-      const read = getTapeSymbol(previousConfig);
-      return (
-        candidates.find((t) => 'read' in t && (t.read || '\u25A1') === read) ??
-        candidates[0] ??
-        null
-      );
-    }
-
-    return candidates[0] ?? null;
-  }
+  const canGoNext = computed(() => activeTraceIndex.value < executionIndex.value || executionStatus === 'running');
 
-  function hasCurrentState(config: unknown): config is { currentState: string } {
-    return typeof config === 'object' && config !== null && 'currentState' in config;
+  function semanticSignature(automaton: AnyAutomaton): string {
+    return JSON.stringify({
+      kind: automaton.kind,
+      tapes: automaton.kind === 'turing' ? automaton.tapes : undefined,
+      states: automaton.states.map(({ x: _x, y: _y, ...state }) => state),
+      transitions: automaton.transitions.map(({ controlX: _controlX, controlY: _controlY, ...transition }) => transition),
+    });
   }
 
-  function getInputIndex(config: unknown): number {
-    if (typeof config === 'object' && config !== null && 'inputIndex' in config) {
-      return Number(config.inputIndex) || 0;
-    }
-    return 0;
-  }
-
-  function getRemainingInput(config: unknown): string {
-    if (typeof config === 'object' && config !== null && 'remainingInput' in config) {
-      return String(config.remainingInput ?? '');
-    }
-    return '';
-  }
-
-  function getTapeSymbol(config: unknown): string {
-    if (
-      typeof config === 'object' &&
-      config !== null &&
-      'tape' in config &&
-      'headPosition' in config &&
-      Array.isArray(config.tape)
-    ) {
-      return String(config.tape[Number(config.headPosition)] ?? '\u25A1');
-    }
-    return '\u25A1';
-  }
-
-  function getTransitionLabel(t: AnyTransition): string {
-    const read = t.read || '\u03B5';
-    if ('pop' in t && 'push' in t) {
-      const pop = t.pop || '\u03B5';
-      const push = t.push || '\u03B5';
-      return `${read}, ${pop} -> ${push}`;
-    }
-    if ('write' in t && 'move' in t) {
-      const write = t.write || '\u25A1';
-      return `${read} -> ${write}, ${t.move}`;
-    }
+  function getTransitionLabel(transition: AnyTransition): string {
+    const read = transition.read || 'ε';
+    if ('pop' in transition && 'push' in transition) return `${read}, ${transition.pop || 'ε'} -> ${transition.push || 'ε'}`;
+    if ('write' in transition && 'move' in transition) return `${read} -> ${transition.write || '□'}, ${transition.move}`;
     return read;
   }
 
   return {
-    input,
-    isRunning,
-    isActive,
-    status,
-    errorMessage,
-    stepIndex,
-    highlightedStates,
-    activeTransition,
-    activeTraceIndex,
-    transitionHighlights,
-    canGoPrevious,
-    canGoNext,
-    speed,
-    traceSteps,
-    start,
-    step,
-    nextStep,
-    previousStep,
-    play,
-    pause,
-    stop,
-    reset,
+    input, isRunning, isActive, status, errorMessage, stepIndex, highlightedStates,
+    activeTransition, activeConfigurations, activeSnapshot, acceptingPath,
+    activeTraceIndex, executionIndex, transitionHighlights, canGoPrevious, canGoNext,
+    speed, traceSteps, start, step: (_automaton: AnyAutomaton) => executeStep(), nextStep,
+    previousStep, play, pause, stop, invalidate, reset,
   };
 });

From f1c2fc1aedbb0ee9ca5f67e530b258c1ef056cd6 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:46:07 -0300
Subject: [PATCH 21/43] feat(ui): add batch input testing

---
 packages/ui/__tests__/simulation.test.ts      | 14 ++++++
 .../ui/src/components/SimulationControls.vue  | 43 +++++++++++++++++++
 packages/ui/src/stores/simulation.ts          | 25 ++++++++++-
 3 files changed, 80 insertions(+), 2 deletions(-)

diff --git a/packages/ui/__tests__/simulation.test.ts b/packages/ui/__tests__/simulation.test.ts
index 5e68f92..70480d7 100644
--- a/packages/ui/__tests__/simulation.test.ts
+++ b/packages/ui/__tests__/simulation.test.ts
@@ -98,4 +98,18 @@ describe('simulation store finite-automaton routing', () => {
     expect(simulation.status).toBe('invalid');
     expect(simulation.errorMessage).toContain('machine changed');
   });
+
+  it('tests multiple inputs and preserves distinct outcomes', () => {
+    const simulation = useSimulationStore();
+    const automaton = finiteAutomaton([
+      { id: 'first', from: 'q0', to: 'q1', read: 'a' },
+      { id: 'second', from: 'q1', to: 'q2', read: 'b' },
+    ]);
+    simulation.batchInput = 'ab\na\n';
+    simulation.runBatch(automaton);
+
+    expect(simulation.batchResults.map((result) => [result.input, result.outcome])).toEqual([
+      ['ab', 'accepted'], ['a', 'rejected'], ['', 'rejected'],
+    ]);
+  });
 });
diff --git a/packages/ui/src/components/SimulationControls.vue b/packages/ui/src/components/SimulationControls.vue
index 992cc08..bffcd06 100644
--- a/packages/ui/src/components/SimulationControls.vue
+++ b/packages/ui/src/components/SimulationControls.vue
@@ -156,6 +156,20 @@ function remainingText(config: Record<string, unknown>): string {
       />
       <span class="sim-controls__speed-val">{{ sim.speed }}ms</span>
     </div>
+    <details v-if="!sim.isActive" class="sim-controls__batch">
+      <summary>Batch input testing</summary>
+      <label class="sim-controls__label" for="batch-inputs">One input per line (a blank line tests ε)</label>
+      <textarea id="batch-inputs" v-model="sim.batchInput" rows="4" class="sim-controls__input" />
+      <button class="sim-controls__btn" @click="sim.runBatch(docStore.automaton)">Run batch</button>
+      <table v-if="sim.batchResults.length" class="sim-controls__results">
+        <thead><tr><th>Input</th><th>Outcome</th><th>Steps</th></tr></thead>
+        <tbody>
+          <tr v-for="(result, index) in sim.batchResults" :key="`${index}:${result.input}`">
+            <td>{{ result.input || 'ε' }}</td><td>{{ result.outcome }}</td><td>{{ result.steps }}</td>
+          </tr>
+        </tbody>
+      </table>
+    </details>
   </div>
 </template>
 
@@ -346,4 +360,33 @@ function remainingText(config: Record<string, unknown>): string {
   color: var(--color-success);
   font-family: var(--font-mono);
 }
+
+.sim-controls__batch {
+  display: grid;
+  gap: 7px;
+  font-size: 12px;
+}
+
+.sim-controls__batch summary {
+  cursor: pointer;
+  font-weight: 600;
+}
+
+.sim-controls__batch textarea {
+  width: 100%;
+  resize: vertical;
+}
+
+.sim-controls__results {
+  width: 100%;
+  border-collapse: collapse;
+  font: 11px var(--font-mono);
+}
+
+.sim-controls__results th,
+.sim-controls__results td {
+  padding: 4px 6px;
+  border-bottom: 1px solid var(--color-border);
+  text-align: left;
+}
 </style>
diff --git a/packages/ui/src/stores/simulation.ts b/packages/ui/src/stores/simulation.ts
index 352b94d..56910c6 100644
--- a/packages/ui/src/stores/simulation.ts
+++ b/packages/ui/src/stores/simulation.ts
@@ -13,6 +13,13 @@ export interface TransitionHighlight {
   label: string;
 }
 
+export interface BatchResult {
+  input: string;
+  outcome: SimulationStatus;
+  steps: number;
+  message?: string;
+}
+
 export const useSimulationStore = defineStore('simulation', () => {
   const document = useDocumentStore();
   const input = ref('');
@@ -23,6 +30,8 @@ export const useSimulationStore = defineStore('simulation', () => {
   const highlightedStates = ref<Set<string>>(new Set());
   const activeTraceIndex = ref(-1);
   const speed = ref(500);
+  const batchInput = ref('');
+  const batchResults = ref<BatchResult[]>([]);
 
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   let runner: SimulationRunner<any> | null = null;
@@ -164,6 +173,18 @@ export const useSimulationStore = defineStore('simulation', () => {
     start(automaton);
   }
 
+  function runBatch(automaton: AnyAutomaton, maxSteps = 10000) {
+    batchResults.value = batchInput.value.split(/\r?\n/).map((value) => value.trim()).map((value) => {
+      try {
+        const batchRunner = createRunnerFor(automaton, value);
+        const result = batchRunner.run(maxSteps);
+        return { input: value, outcome: result.outcome, steps: result.steps.length };
+      } catch (error) {
+        return { input: value, outcome: 'invalid' as const, steps: 0, message: error instanceof Error ? error.message : String(error) };
+      }
+    });
+  }
+
   watch(speed, () => {
     if (!isRunning.value || intervalId === null) return;
     clearInterval(intervalId);
@@ -204,7 +225,7 @@ export const useSimulationStore = defineStore('simulation', () => {
     input, isRunning, isActive, status, errorMessage, stepIndex, highlightedStates,
     activeTransition, activeConfigurations, activeSnapshot, acceptingPath,
     activeTraceIndex, executionIndex, transitionHighlights, canGoPrevious, canGoNext,
-    speed, traceSteps, start, step: (_automaton: AnyAutomaton) => executeStep(), nextStep,
-    previousStep, play, pause, stop, invalidate, reset,
+    speed, traceSteps, batchInput, batchResults, start, step: (_automaton: AnyAutomaton) => executeStep(), nextStep,
+    previousStep, play, pause, stop, invalidate, reset, runBatch,
   };
 });

From 6e920ec7fdbc6852c00284598799eb75acc43420 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:46:39 -0300
Subject: [PATCH 22/43] docs(plan): mark simulation learning features complete

---
 ACTION_PLAN.md | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index 1749023..254a5b5 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -142,14 +142,14 @@ No source or configuration files were changed during the audit. Native installer
 **Priority:** P2  
 **Dependencies:** Correct engine behavior and result contracts from step 4
 
-- [ ] Emit actual transition IDs, complete configurations, branch identities, and accepting paths from runners.
-- [ ] Include the initial configuration in traces and replay complete snapshots directly.
-- [ ] Separate the replay cursor from the execution head.
-- [ ] Restart or invalidate simulations after semantic edits; define behavior for layout-only edits.
-- [ ] Show consumed/remaining input, PDA stack, TM tape/head, and active configurations.
-- [ ] Show branch selection and accepting witnesses for nondeterministic runs.
+- [x] Emit actual transition IDs, complete configurations, branch identities, and accepting paths from runners.
+- [x] Include the initial configuration in traces and replay complete snapshots directly.
+- [x] Separate the replay cursor from the execution head.
+- [x] Restart or invalidate simulations after semantic edits; define behavior for layout-only edits.
+- [x] Show consumed/remaining input, PDA stack, TM tape/head, and active configurations.
+- [x] Show branch selection and accepting witnesses for nondeterministic runs.
 - [x] Expose meaningful execution limits and clear incomplete/canceled statuses.
-- [ ] Add batch input testing after individual simulation and replay are dependable.
+- [x] Add batch input testing after individual simulation and replay are dependable.
 
 **Acceptance criteria:** Every displayed step, highlight, configuration, and status describes the same execution point. Users can inspect why a word was accepted or rejected.
 

From 42d5cf04aa8325d4d99a94e9c61da224484ab3a9 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:48:02 -0300
Subject: [PATCH 23/43] feat(ui): make canvas gestures pointer-safe

---
 packages/ui/__tests__/history.test.ts         | 29 ++++++++++++++
 .../ui/src/components/AutomatonCanvas.vue     | 36 ++++++++++++------
 .../src/composables/useInteractionManager.ts  | 38 +++++++++++++++----
 packages/ui/src/composables/usePanZoom.ts     |  4 +-
 4 files changed, 85 insertions(+), 22 deletions(-)

diff --git a/packages/ui/__tests__/history.test.ts b/packages/ui/__tests__/history.test.ts
index 85a5231..2b11471 100644
--- a/packages/ui/__tests__/history.test.ts
+++ b/packages/ui/__tests__/history.test.ts
@@ -3,6 +3,7 @@ import { createPinia, setActivePinia } from 'pinia';
 import { AddStateCommand, createEmptyAutomaton } from '@jauto/core';
 import { useDocumentStore } from '../src/stores/document';
 import { useHistoryStore } from '../src/stores/history';
+import { useInteractionManager } from '../src/composables/useInteractionManager';
 
 describe('document and command history integration', () => {
   beforeEach(() => {
@@ -79,4 +80,32 @@ describe('document and command history integration', () => {
     doc.select({ type: 'state', id: 'q0' });
     expect(flush).toHaveBeenCalledOnce();
   });
+
+  it('preserves the pointer offset, restores canceled previews, and commits one drag command', () => {
+    const doc = useDocumentStore();
+    const history = useHistoryStore();
+    doc.loadAutomaton({
+      kind: 'fa',
+      states: [{ id: 'q0', name: 'q0', x: 10, y: 20, isInitial: true, isFinal: false }],
+      transitions: [],
+    });
+    const interaction = useInteractionManager((x, y) => ({ x, y }));
+    const rect = { left: 0, top: 0 } as DOMRect;
+    const pointer = (clientX: number, clientY: number) => ({ clientX, clientY, button: 0, shiftKey: false }) as PointerEvent;
+
+    interaction.onPointerDown(pointer(15, 25), rect);
+    interaction.onPointerMove(pointer(50, 70), rect);
+    expect(doc.automaton.states[0]).toMatchObject({ x: 45, y: 65 });
+    interaction.cancelGesture();
+    expect(doc.automaton.states[0]).toMatchObject({ x: 10, y: 20 });
+    expect(history.canUndo).toBe(false);
+
+    interaction.onPointerDown(pointer(15, 25), rect);
+    interaction.onPointerMove(pointer(50, 70), rect);
+    interaction.onPointerUp(pointer(50, 70), rect);
+    expect(doc.automaton.states[0]).toMatchObject({ x: 45, y: 65 });
+    history.undo();
+    expect(doc.automaton.states[0]).toMatchObject({ x: 10, y: 20 });
+    expect(history.canUndo).toBe(false);
+  });
 });
diff --git a/packages/ui/src/components/AutomatonCanvas.vue b/packages/ui/src/components/AutomatonCanvas.vue
index 5285da3..06ba340 100644
--- a/packages/ui/src/components/AutomatonCanvas.vue
+++ b/packages/ui/src/components/AutomatonCanvas.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ref, onMounted, onUnmounted } from 'vue';
+import { ref, onMounted, onUnmounted, watch } from 'vue';
 import { useDocumentStore } from '../stores/document';
 import { useSimulationStore } from '../stores/simulation';
 import { useCanvasRenderer, readCssVar } from '../composables/useCanvasRenderer';
@@ -72,8 +72,9 @@ function getCanvasRect(): DOMRect {
   return canvasRef.value!.getBoundingClientRect();
 }
 
-function handleMouseDown(e: MouseEvent) {
-  const pointerType = (e as PointerEvent).pointerType;
+function handlePointerDown(e: PointerEvent) {
+  const pointerType = e.pointerType;
+  canvasRef.value?.setPointerCapture(e.pointerId);
   if (spaceHeldForPan.value && e.button === 0) {
     panZoom.onPanStart(e, { fromPrimaryWithSpace: true });
     return;
@@ -82,17 +83,23 @@ function handleMouseDown(e: MouseEvent) {
     panZoom.onPanStart(e);
     return;
   }
-  interaction.onMouseDown(e, getCanvasRect());
+  interaction.onPointerDown(e, getCanvasRect());
 }
 
-function handleMouseMove(e: MouseEvent) {
+function handlePointerMove(e: PointerEvent) {
   panZoom.onPanMove(e);
-  interaction.onMouseMove(e, getCanvasRect());
+  interaction.onPointerMove(e, getCanvasRect());
 }
 
-function handleMouseUp(e: MouseEvent) {
+function handlePointerUp(e: PointerEvent) {
   panZoom.onPanEnd();
-  interaction.onMouseUp(e, getCanvasRect());
+  interaction.onPointerUp(e, getCanvasRect());
+  if (canvasRef.value?.hasPointerCapture(e.pointerId)) canvasRef.value.releasePointerCapture(e.pointerId);
+}
+
+function cancelPointerGesture() {
+  panZoom.onPanEnd();
+  interaction.cancelGesture();
 }
 
 function handleKeyDown(e: KeyboardEvent) {
@@ -121,9 +128,11 @@ function updateModifier(e: KeyboardEvent) {
 function handleWindowBlur() {
   docStore.heldModifier = null;
   spaceHeldForPan.value = false;
-  panZoom.onPanEnd();
+  cancelPointerGesture();
 }
 
+watch(() => docStore.documentId, cancelPointerGesture);
+
 onMounted(() => {
   resize();
   loop();
@@ -151,9 +160,11 @@ defineExpose({ panZoom });
     ref="canvasRef"
     class="automaton-canvas"
     :class="{ 'automaton-canvas--space-pan': spaceHeldForPan }"
-    @mousedown="handleMouseDown"
-    @mousemove="handleMouseMove"
-    @mouseup="handleMouseUp"
+    @pointerdown="handlePointerDown"
+    @pointermove="handlePointerMove"
+    @pointerup="handlePointerUp"
+    @pointercancel="cancelPointerGesture"
+    @lostpointercapture="cancelPointerGesture"
     @wheel="panZoom.onWheel"
     @contextmenu.prevent
   />
@@ -165,6 +176,7 @@ defineExpose({ panZoom });
   width: 100%;
   height: 100%;
   cursor: default;
+  touch-action: none;
 }
 
 .automaton-canvas--space-pan {
diff --git a/packages/ui/src/composables/useInteractionManager.ts b/packages/ui/src/composables/useInteractionManager.ts
index 9a5789a..c0cd9b4 100644
--- a/packages/ui/src/composables/useInteractionManager.ts
+++ b/packages/ui/src/composables/useInteractionManager.ts
@@ -28,12 +28,14 @@ export function useInteractionManager(
   const dragStateId = ref<string | null>(null);
   const dragStartX = ref(0);
   const dragStartY = ref(0);
+  const dragOffsetX = ref(0);
+  const dragOffsetY = ref(0);
 
   const isDrawingTransition = ref(false);
   const transitionSourceId = ref<string | null>(null);
   const transitionPreviewEnd = ref<{ x: number; y: number } | null>(null);
 
-  function toWorld(e: MouseEvent, canvasRect: DOMRect) {
+  function toWorld(e: PointerEvent, canvasRect: DOMRect) {
     return screenToWorld(e.clientX - canvasRect.left, e.clientY - canvasRect.top);
   }
 
@@ -83,7 +85,7 @@ export function useInteractionManager(
     }
   }
 
-  function onMouseDown(e: MouseEvent, canvasRect: DOMRect) {
+  function onPointerDown(e: PointerEvent, canvasRect: DOMRect) {
     const { x, y } = toWorld(e, canvasRect);
 
     if (e.button === 2) {
@@ -136,6 +138,8 @@ export function useInteractionManager(
       dragStateId.value = hitState.id;
       dragStartX.value = hitState.x;
       dragStartY.value = hitState.y;
+      dragOffsetX.value = x - hitState.x;
+      dragOffsetY.value = y - hitState.y;
       return;
     }
 
@@ -148,12 +152,12 @@ export function useInteractionManager(
     docStore.clearSelection();
   }
 
-  function onMouseMove(e: MouseEvent, canvasRect: DOMRect) {
+  function onPointerMove(e: PointerEvent, canvasRect: DOMRect) {
     const { x, y } = toWorld(e, canvasRect);
 
     if (isDragging.value && dragStateId.value) {
       docStore.previewAutomaton(
-        updateState(docStore.automaton, dragStateId.value, { x, y }) as AnyAutomaton,
+        updateState(docStore.automaton, dragStateId.value, { x: x - dragOffsetX.value, y: y - dragOffsetY.value }) as AnyAutomaton,
       );
     }
 
@@ -162,7 +166,7 @@ export function useInteractionManager(
     }
   }
 
-  function onMouseUp(e: MouseEvent, canvasRect: DOMRect) {
+  function onPointerUp(e: PointerEvent, canvasRect: DOMRect) {
     if (isDragging.value && dragStateId.value) {
       const stateId = dragStateId.value;
       const current = docStore.automaton.states.find((s) => s.id === stateId);
@@ -211,7 +215,24 @@ export function useInteractionManager(
     }
   }
 
+  function cancelGesture() {
+    if (isDragging.value && dragStateId.value) {
+      docStore.previewAutomaton(
+        updateState(docStore.automaton, dragStateId.value, { x: dragStartX.value, y: dragStartY.value }) as AnyAutomaton,
+      );
+    }
+    isDragging.value = false;
+    dragStateId.value = null;
+    isDrawingTransition.value = false;
+    transitionSourceId.value = null;
+    transitionPreviewEnd.value = null;
+  }
+
   function onKeyDown(e: KeyboardEvent) {
+    if (e.key === 'Escape') {
+      cancelGesture();
+      return;
+    }
     if (e.key === 'Delete' || e.key === 'Backspace') {
       const sel = docStore.selectedElement;
       if (!sel) return;
@@ -236,9 +257,10 @@ export function useInteractionManager(
   }
 
   return {
-    onMouseDown,
-    onMouseMove,
-    onMouseUp,
+    onPointerDown,
+    onPointerMove,
+    onPointerUp,
+    cancelGesture,
     onKeyDown,
     isDrawingTransition,
     transitionSourceId,
diff --git a/packages/ui/src/composables/usePanZoom.ts b/packages/ui/src/composables/usePanZoom.ts
index 6493f02..d7b30a3 100644
--- a/packages/ui/src/composables/usePanZoom.ts
+++ b/packages/ui/src/composables/usePanZoom.ts
@@ -49,7 +49,7 @@ export function usePanZoom() {
     offsetY.value -= dy;
   }
 
-  function onPanStart(e: MouseEvent, opts?: { fromPrimaryWithSpace?: boolean }) {
+  function onPanStart(e: PointerEvent, opts?: { fromPrimaryWithSpace?: boolean }) {
     if (opts?.fromPrimaryWithSpace) {
       isPanning = true;
       lastX = e.clientX;
@@ -66,7 +66,7 @@ export function usePanZoom() {
     }
   }
 
-  function onPanMove(e: MouseEvent) {
+  function onPanMove(e: PointerEvent) {
     if (!isPanning) return;
     offsetX.value += e.clientX - lastX;
     offsetY.value += e.clientY - lastY;

From 7d069d0d93a11328cb4429fd0f0fcddef22e58f2 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:49:43 -0300
Subject: [PATCH 24/43] feat(ui): add responsive high-DPI diagram viewport

---
 packages/ui/__tests__/pan-zoom.test.ts        |  26 ++++
 .../ui/src/components/AutomatonCanvas.vue     | 138 +++++++++++++++---
 .../ui/src/composables/useCanvasRenderer.ts   |  15 +-
 packages/ui/src/composables/usePanZoom.ts     |   2 +-
 4 files changed, 148 insertions(+), 33 deletions(-)
 create mode 100644 packages/ui/__tests__/pan-zoom.test.ts

diff --git a/packages/ui/__tests__/pan-zoom.test.ts b/packages/ui/__tests__/pan-zoom.test.ts
new file mode 100644
index 0000000..aa434f9
--- /dev/null
+++ b/packages/ui/__tests__/pan-zoom.test.ts
@@ -0,0 +1,26 @@
+import { describe, expect, it } from 'vitest';
+import { usePanZoom } from '../src/composables/usePanZoom';
+
+describe('diagram viewport', () => {
+  it('fits imported diagram bounds into the available viewport', () => {
+    const viewport = usePanZoom();
+    viewport.fitAll([{ x: -100, y: -50 }, { x: 300, y: 150 }], 800, 400);
+
+    const first = viewport.worldToScreen(-100, -50);
+    const last = viewport.worldToScreen(300, 150);
+    expect(viewport.scale.value).toBeCloseTo(400 / 360);
+    expect(first.x).toBeGreaterThan(0);
+    expect(first.y).toBeGreaterThan(0);
+    expect(last.x).toBeLessThan(800);
+    expect(last.y).toBeLessThan(400);
+  });
+
+  it('resets an empty diagram and clamps zoom controls', () => {
+    const viewport = usePanZoom();
+    viewport.fitAll([], 800, 400);
+    for (let index = 0; index < 30; index++) viewport.zoomOut();
+    expect(viewport.scale.value).toBe(0.1);
+    for (let index = 0; index < 40; index++) viewport.zoomIn();
+    expect(viewport.scale.value).toBe(5);
+  });
+});
diff --git a/packages/ui/src/components/AutomatonCanvas.vue b/packages/ui/src/components/AutomatonCanvas.vue
index 06ba340..081e776 100644
--- a/packages/ui/src/components/AutomatonCanvas.vue
+++ b/packages/ui/src/components/AutomatonCanvas.vue
@@ -1,5 +1,6 @@
 <script setup lang="ts">
-import { ref, onMounted, onUnmounted, watch } from 'vue';
+import { computed, ref, nextTick, onMounted, onUnmounted, watch } from 'vue';
+import { Focus, Minus, Plus } from '@lucide/vue';
 import { useDocumentStore } from '../stores/document';
 import { useSimulationStore } from '../stores/simulation';
 import { useCanvasRenderer, readCssVar } from '../composables/useCanvasRenderer';
@@ -14,22 +15,28 @@ const simStore = useSimulationStore();
 const { render } = useCanvasRenderer();
 const panZoom = usePanZoom();
 const interaction = useInteractionManager(panZoom.screenToWorld);
+const zoomPercent = computed(() => Math.round(panZoom.scale.value * 100));
 
 let animFrameId = 0;
+let resizeObserver: ResizeObserver | null = null;
 
 function draw() {
   const canvas = canvasRef.value;
   if (!canvas) return;
   const ctx = canvas.getContext('2d');
   if (!ctx) return;
+  const dpr = window.devicePixelRatio || 1;
+  ctx.setTransform(dpr, 0, 0, dpr, 0, 0);
+  const width = canvas.clientWidth;
+  const height = canvas.clientHeight;
 
-  render(ctx, canvas.width, canvas.height, docStore.automaton, {
+  render(ctx, width, height, docStore.automaton, {
     offsetX: panZoom.offsetX.value,
     offsetY: panZoom.offsetY.value,
     scale: panZoom.scale.value,
     selected: docStore.selectedElement,
     highlightedStates: simStore.highlightedStates,
-    activeTransition: simStore.activeTransition,
+    activeTransitions: simStore.transitionHighlights,
   });
 
   if (interaction.isDrawingTransition.value && interaction.transitionSourceId.value) {
@@ -54,9 +61,9 @@ function draw() {
   }
 }
 
-function loop() {
-  draw();
-  animFrameId = requestAnimationFrame(loop);
+function requestDraw() {
+  cancelAnimationFrame(animFrameId);
+  animFrameId = requestAnimationFrame(draw);
 }
 
 function resize() {
@@ -64,8 +71,16 @@ function resize() {
   if (!canvas) return;
   const parent = canvas.parentElement;
   if (!parent) return;
-  canvas.width = parent.clientWidth;
-  canvas.height = parent.clientHeight;
+  const dpr = window.devicePixelRatio || 1;
+  canvas.width = Math.max(1, Math.round(parent.clientWidth * dpr));
+  canvas.height = Math.max(1, Math.round(parent.clientHeight * dpr));
+  requestDraw();
+}
+
+function fitAll() {
+  const canvas = canvasRef.value;
+  if (!canvas) return;
+  panZoom.fitAll(docStore.automaton.states, canvas.clientWidth, canvas.clientHeight);
 }
 
 function getCanvasRect(): DOMRect {
@@ -131,12 +146,33 @@ function handleWindowBlur() {
   cancelPointerGesture();
 }
 
-watch(() => docStore.documentId, cancelPointerGesture);
+watch(() => docStore.documentId, async () => {
+  cancelPointerGesture();
+  await nextTick();
+  fitAll();
+});
+
+watch(
+  [
+    () => docStore.automaton,
+    () => docStore.selectedElement,
+    () => simStore.highlightedStates,
+    () => simStore.transitionHighlights,
+    panZoom.offsetX,
+    panZoom.offsetY,
+    panZoom.scale,
+    interaction.isDrawingTransition,
+    interaction.transitionPreviewEnd,
+  ],
+  requestDraw,
+  { deep: true },
+);
 
 onMounted(() => {
   resize();
-  loop();
-  window.addEventListener('resize', resize);
+  resizeObserver = new ResizeObserver(resize);
+  if (canvasRef.value?.parentElement) resizeObserver.observe(canvasRef.value.parentElement);
+  fitAll();
   window.addEventListener('keydown', handleKeyDown);
   window.addEventListener('keyup', handleKeyUp);
   window.addEventListener('blur', handleWindowBlur);
@@ -144,7 +180,7 @@ onMounted(() => {
 
 onUnmounted(() => {
   cancelAnimationFrame(animFrameId);
-  window.removeEventListener('resize', resize);
+  resizeObserver?.disconnect();
   window.removeEventListener('keydown', handleKeyDown);
   window.removeEventListener('keyup', handleKeyUp);
   window.removeEventListener('blur', handleWindowBlur);
@@ -156,21 +192,36 @@ defineExpose({ panZoom });
 </script>
 
 <template>
-  <canvas
-    ref="canvasRef"
-    class="automaton-canvas"
-    :class="{ 'automaton-canvas--space-pan': spaceHeldForPan }"
-    @pointerdown="handlePointerDown"
-    @pointermove="handlePointerMove"
-    @pointerup="handlePointerUp"
-    @pointercancel="cancelPointerGesture"
-    @lostpointercapture="cancelPointerGesture"
-    @wheel="panZoom.onWheel"
-    @contextmenu.prevent
-  />
+  <div class="canvas-surface">
+    <canvas
+      ref="canvasRef"
+      class="automaton-canvas"
+      :class="{ 'automaton-canvas--space-pan': spaceHeldForPan }"
+      aria-label="Automaton diagram"
+      @pointerdown="handlePointerDown"
+      @pointermove="handlePointerMove"
+      @pointerup="handlePointerUp"
+      @pointercancel="cancelPointerGesture"
+      @lostpointercapture="cancelPointerGesture"
+      @wheel="panZoom.onWheel"
+      @contextmenu.prevent
+    />
+    <div class="canvas-zoom" role="group" aria-label="Diagram zoom">
+      <button type="button" title="Zoom out" aria-label="Zoom out" @click="panZoom.zoomOut"><Minus :size="15" /></button>
+      <span aria-live="polite">{{ zoomPercent }}%</span>
+      <button type="button" title="Zoom in" aria-label="Zoom in" @click="panZoom.zoomIn"><Plus :size="15" /></button>
+      <button type="button" title="Fit diagram" aria-label="Fit diagram" @click="fitAll"><Focus :size="15" /></button>
+    </div>
+  </div>
 </template>
 
 <style scoped>
+.canvas-surface {
+  position: relative;
+  width: 100%;
+  height: 100%;
+}
+
 .automaton-canvas {
   display: block;
   width: 100%;
@@ -179,6 +230,45 @@ defineExpose({ panZoom });
   touch-action: none;
 }
 
+.canvas-zoom {
+  position: absolute;
+  right: 12px;
+  bottom: 12px;
+  display: flex;
+  align-items: center;
+  gap: 2px;
+  padding: 3px;
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-sm);
+  background: var(--color-bg-secondary);
+  box-shadow: var(--shadow-sm);
+}
+
+.canvas-zoom button {
+  display: grid;
+  place-items: center;
+  width: 28px;
+  height: 28px;
+  border: 0;
+  border-radius: var(--radius-sm);
+  background: transparent;
+  color: var(--color-text);
+  cursor: pointer;
+}
+
+.canvas-zoom button:hover,
+.canvas-zoom button:focus-visible {
+  outline: 2px solid var(--color-primary);
+  background: var(--color-bg-tertiary);
+}
+
+.canvas-zoom span {
+  min-width: 42px;
+  color: var(--color-text-secondary);
+  font: 11px var(--font-mono);
+  text-align: center;
+}
+
 .automaton-canvas--space-pan {
   cursor: grab;
 }
diff --git a/packages/ui/src/composables/useCanvasRenderer.ts b/packages/ui/src/composables/useCanvasRenderer.ts
index 6dc90ca..2659642 100644
--- a/packages/ui/src/composables/useCanvasRenderer.ts
+++ b/packages/ui/src/composables/useCanvasRenderer.ts
@@ -23,7 +23,7 @@ export interface RenderOptions {
   scale: number;
   selected: SelectedElement;
   highlightedStates?: ReadonlySet<string>;
-  activeTransition?: TransitionHighlight | null;
+  activeTransitions?: readonly TransitionHighlight[];
 }
 
 export function useCanvasRenderer() {
@@ -34,7 +34,7 @@ export function useCanvasRenderer() {
     automaton: AnyAutomaton,
     options: RenderOptions,
   ) {
-    const { offsetX, offsetY, scale, selected, highlightedStates, activeTransition } = options;
+    const { offsetX, offsetY, scale, selected, highlightedStates, activeTransitions = [] } = options;
 
     const canvasBg = readCssVar('--color-canvas-bg', '#111111');
     const gridColor = readCssVar('--color-canvas-grid', '#1a1a1a');
@@ -56,14 +56,14 @@ export function useCanvasRenderer() {
       if (!from || !to) continue;
 
       const isSelected = selected?.type === 'transition' && selected.id === t.id;
-      const isActiveTransition = activeTransition?.transitionId === t.id;
+      const isActiveTransition = activeTransitions.some((active) => active.transitionId === t.id);
       drawTransition(ctx, from, to, t, automaton, isSelected, isActiveTransition, fontSans);
     }
 
     for (const state of automaton.states) {
       const isSelected = selected?.type === 'state' && selected.id === state.id;
       const isHighlighted = highlightedStates?.has(state.id) ?? false;
-      const simulationRole = getSimulationStateRole(state.id, activeTransition);
+      const simulationRole = getSimulationStateRole(state.id, activeTransitions);
       drawState(ctx, state, isSelected, isHighlighted, simulationRole, fontSans);
     }
 
@@ -344,11 +344,10 @@ export function useCanvasRenderer() {
 
   function getSimulationStateRole(
     stateId: string,
-    activeTransition: TransitionHighlight | null | undefined,
+    activeTransitions: readonly TransitionHighlight[],
   ) {
-    if (!activeTransition) return null;
-    const isSource = activeTransition.sourceStateId === stateId;
-    const isTarget = activeTransition.targetStateId === stateId;
+    const isSource = activeTransitions.some((transition) => transition.sourceStateId === stateId);
+    const isTarget = activeTransitions.some((transition) => transition.targetStateId === stateId);
     if (isSource && isTarget) return 'both';
     if (isSource) return 'source';
     if (isTarget) return 'target';
diff --git a/packages/ui/src/composables/usePanZoom.ts b/packages/ui/src/composables/usePanZoom.ts
index d7b30a3..a3f5c76 100644
--- a/packages/ui/src/composables/usePanZoom.ts
+++ b/packages/ui/src/composables/usePanZoom.ts
@@ -78,7 +78,7 @@ export function usePanZoom() {
     isPanning = false;
   }
 
-  function fitAll(states: { x: number; y: number }[], canvasWidth: number, canvasHeight: number) {
+  function fitAll(states: readonly { x: number; y: number }[], canvasWidth: number, canvasHeight: number) {
     if (states.length === 0) {
       offsetX.value = 0;
       offsetY.value = 0;

From 780b037a027c2abe3f729c6a78da07b9f0b78651 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:51:39 -0300
Subject: [PATCH 25/43] feat(ui): add accessible semantic diagram editor

---
 packages/ui/__tests__/semantic-editor.test.ts |  33 ++++++
 packages/ui/src/components/EditorView.vue     |  26 ++++-
 packages/ui/src/components/InspectorPanel.vue |   2 +-
 .../src/components/SemanticDiagramPanel.vue   | 104 ++++++++++++++++++
 packages/ui/src/components/Toolbar.vue        |  14 ++-
 5 files changed, 175 insertions(+), 4 deletions(-)
 create mode 100644 packages/ui/__tests__/semantic-editor.test.ts
 create mode 100644 packages/ui/src/components/SemanticDiagramPanel.vue

diff --git a/packages/ui/__tests__/semantic-editor.test.ts b/packages/ui/__tests__/semantic-editor.test.ts
new file mode 100644
index 0000000..559ccf2
--- /dev/null
+++ b/packages/ui/__tests__/semantic-editor.test.ts
@@ -0,0 +1,33 @@
+import { beforeEach, describe, expect, it } from 'vitest';
+import { mount } from '@vue/test-utils';
+import { createPinia, setActivePinia } from 'pinia';
+import SemanticDiagramPanel from '../src/components/SemanticDiagramPanel.vue';
+import { useDocumentStore } from '../src/stores/document';
+
+describe('accessible diagram editor', () => {
+  beforeEach(() => {
+    const pinia = createPinia();
+    setActivePinia(pinia);
+  });
+
+  it('creates and selects states and transitions with native controls', async () => {
+    const pinia = createPinia();
+    setActivePinia(pinia);
+    const document = useDocumentStore();
+    document.newDocument('fa');
+    const wrapper = mount(SemanticDiagramPanel, { global: { plugins: [pinia] } });
+
+    const addState = wrapper.get('button');
+    await addState.trigger('click');
+    await addState.trigger('click');
+    expect(document.automaton.states.map((state) => state.name)).toEqual(['q0', 'q1']);
+
+    const selects = wrapper.findAll('select');
+    await selects[0]!.setValue(document.automaton.states[0]!.id);
+    await selects[1]!.setValue(document.automaton.states[1]!.id);
+    await wrapper.get('form').trigger('submit');
+    expect(document.automaton.transitions).toHaveLength(1);
+    expect(document.selectedElement).toEqual({ type: 'transition', id: document.automaton.transitions[0]!.id });
+    wrapper.unmount();
+  });
+});
diff --git a/packages/ui/src/components/EditorView.vue b/packages/ui/src/components/EditorView.vue
index 53ca76a..c236adf 100644
--- a/packages/ui/src/components/EditorView.vue
+++ b/packages/ui/src/components/EditorView.vue
@@ -3,13 +3,27 @@ import AutomatonCanvas from './AutomatonCanvas.vue';
 import Toolbar from './Toolbar.vue';
 import InspectorPanel from './InspectorPanel.vue';
 import SimulationControls from './SimulationControls.vue';
+import SemanticDiagramPanel from './SemanticDiagramPanel.vue';
+import { PanelRightClose, PanelRightOpen } from '@lucide/vue';
+import { ref } from 'vue';
 import { useDocumentStore } from '../stores/document';
 const docStore = useDocumentStore();
+const inspectorOpen = ref(true);
+
+function toggleInspector() {
+  if (inspectorOpen.value) docStore.flushInspectorEdits();
+  inspectorOpen.value = !inspectorOpen.value;
+}
 </script>
 
 <template>
   <div class="editor-view">
     <Toolbar />
+    <button class="editor-view__inspector-toggle" type="button" :aria-expanded="inspectorOpen" aria-controls="property-inspector" @click="toggleInspector">
+      <PanelRightClose v-if="inspectorOpen" :size="14" />
+      <PanelRightOpen v-else :size="14" />
+      {{ inspectorOpen ? 'Hide inspector' : 'Show inspector' }}
+    </button>
     <div v-if="docStore.importWarnings.length" class="editor-view__notices" role="status">
       <strong>Import notices</strong>
       <ul><li v-for="(warning, index) in docStore.importWarnings" :key="index">{{ warning.message }}</li></ul>
@@ -17,12 +31,13 @@ const docStore = useDocumentStore();
     </div>
     <div class="editor-view__body">
       <div class="editor-view__center">
+        <SemanticDiagramPanel />
         <div class="editor-view__canvas">
           <AutomatonCanvas />
         </div>
         <SimulationControls />
       </div>
-      <InspectorPanel />
+      <InspectorPanel v-if="inspectorOpen" id="property-inspector" />
     </div>
   </div>
 </template>
@@ -42,6 +57,9 @@ const docStore = useDocumentStore();
   overflow: hidden;
 }
 
+.editor-view__inspector-toggle { align-self: flex-end; margin: 4px 8px; display: inline-flex; align-items: center; gap: 4px; min-height: 30px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-bg-secondary); color: var(--color-text); cursor: pointer; }
+.editor-view__inspector-toggle:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
+
 .editor-view__center {
   flex: 1;
   display: flex;
@@ -54,4 +72,10 @@ const docStore = useDocumentStore();
   position: relative;
   overflow: hidden;
 }
+
+@media (max-width: 760px) {
+  .editor-view__body { flex-direction: column; }
+  .editor-view__center { min-height: 55%; }
+  :deep(.inspector) { width: auto; max-height: 40%; border-top: 1px solid var(--color-border); border-left: 0; }
+}
 </style>
diff --git a/packages/ui/src/components/InspectorPanel.vue b/packages/ui/src/components/InspectorPanel.vue
index 21102bf..3fa8c2b 100644
--- a/packages/ui/src/components/InspectorPanel.vue
+++ b/packages/ui/src/components/InspectorPanel.vue
@@ -204,7 +204,7 @@ const transitionFields = computed(() => {
 </script>
 
 <template>
-  <aside class="inspector">
+  <aside class="inspector" aria-label="Properties inspector">
     <div v-if="selectedState && stateDraft" class="inspector__section">
       <h3 class="inspector__title">State</h3>
       <label class="inspector__field">
diff --git a/packages/ui/src/components/SemanticDiagramPanel.vue b/packages/ui/src/components/SemanticDiagramPanel.vue
new file mode 100644
index 0000000..944b9c2
--- /dev/null
+++ b/packages/ui/src/components/SemanticDiagramPanel.vue
@@ -0,0 +1,104 @@
+<script setup lang="ts">
+import { computed, ref } from 'vue';
+import { AddStateCommand, AddTransitionCommand, generateStateId, generateTransitionId } from '@jauto/core';
+import { useDocumentStore } from '../stores/document';
+import { useHistoryStore } from '../stores/history';
+
+const document = useDocumentStore();
+const history = useHistoryStore();
+const fromId = ref('');
+const toId = ref('');
+const statusMessage = ref('');
+const canAddTransition = computed(() => Boolean(fromId.value && toId.value));
+
+function addState() {
+  const index = document.automaton.states.length;
+  const id = generateStateId(document.automaton.states);
+  const state = {
+    id,
+    name: `q${index}`,
+    x: 100 + (index % 5) * 120,
+    y: 100 + Math.floor(index / 5) * 100,
+    isInitial: index === 0,
+    isFinal: false,
+  };
+  history.dispatch(new AddStateCommand(state));
+  document.select({ type: 'state', id });
+  statusMessage.value = `Added state ${state.name}. Use the inspector to edit it.`;
+}
+
+function addTransition() {
+  if (!canAddTransition.value) return;
+  const id = generateTransitionId(document.automaton.transitions);
+  const common = { id, from: fromId.value, to: toId.value, read: '' };
+  const transition = document.automaton.kind === 'pda'
+    ? { ...common, pop: '', push: '' }
+    : document.automaton.kind === 'turing'
+      ? { ...common, write: '', move: 'R' as const }
+      : common;
+  history.dispatch(new AddTransitionCommand(transition));
+  document.select({ type: 'transition', id });
+  statusMessage.value = 'Added transition. Use the inspector to edit its symbols.';
+}
+</script>
+
+<template>
+  <details class="diagram-outline">
+    <summary>Accessible diagram editor</summary>
+    <div class="diagram-outline__content">
+      <section aria-labelledby="states-heading">
+        <div class="diagram-outline__heading">
+          <h2 id="states-heading">States</h2>
+          <button type="button" @click="addState">Add state</button>
+        </div>
+        <p v-if="!document.automaton.states.length">No states.</p>
+        <table v-else>
+          <thead><tr><th>Name</th><th>Role</th><th>Position</th><th>Action</th></tr></thead>
+          <tbody>
+            <tr v-for="state in document.automaton.states" :key="state.id">
+              <td>{{ state.name }}</td>
+              <td>{{ [state.isInitial ? 'initial' : '', state.isFinal ? 'final' : ''].filter(Boolean).join(', ') || 'regular' }}</td>
+              <td>{{ Math.round(state.x) }}, {{ Math.round(state.y) }}</td>
+              <td><button type="button" @click="document.select({ type: 'state', id: state.id })">Select {{ state.name }}</button></td>
+            </tr>
+          </tbody>
+        </table>
+      </section>
+      <section aria-labelledby="transitions-heading">
+        <div class="diagram-outline__heading"><h2 id="transitions-heading">Transitions</h2></div>
+        <form class="diagram-outline__add-transition" @submit.prevent="addTransition">
+          <label>From <select v-model="fromId"><option value="">Choose state</option><option v-for="state in document.automaton.states" :key="state.id" :value="state.id">{{ state.name }}</option></select></label>
+          <label>To <select v-model="toId"><option value="">Choose state</option><option v-for="state in document.automaton.states" :key="state.id" :value="state.id">{{ state.name }}</option></select></label>
+          <button type="submit" :disabled="!canAddTransition">Add transition</button>
+        </form>
+        <ul class="diagram-outline__transitions">
+          <li v-for="transition in document.automaton.transitions" :key="transition.id">
+            <button type="button" @click="document.select({ type: 'transition', id: transition.id })">
+              {{ document.automaton.states.find((state) => state.id === transition.from)?.name }} to
+              {{ document.automaton.states.find((state) => state.id === transition.to)?.name }}, read {{ transition.read || 'ε' }}
+            </button>
+          </li>
+        </ul>
+      </section>
+      <p class="sr-only" role="status" aria-live="polite">{{ statusMessage }}</p>
+    </div>
+  </details>
+</template>
+
+<style scoped>
+.diagram-outline { border-bottom: 1px solid var(--color-border); background: var(--color-bg-secondary); font-size: 12px; }
+.diagram-outline > summary { padding: 7px 12px; cursor: pointer; font-weight: 600; }
+.diagram-outline__content { display: grid; grid-template-columns: minmax(280px, 1fr) minmax(280px, 1fr); gap: 16px; max-height: 250px; padding: 4px 12px 12px; overflow: auto; }
+.diagram-outline__heading { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
+.diagram-outline h2 { margin: 4px 0; font-size: 13px; }
+.diagram-outline table { width: 100%; border-collapse: collapse; }
+.diagram-outline th, .diagram-outline td { padding: 4px; border-bottom: 1px solid var(--color-border); text-align: left; }
+.diagram-outline button, .diagram-outline select { min-height: 30px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-bg); color: var(--color-text); }
+.diagram-outline button { padding: 4px 8px; cursor: pointer; }
+.diagram-outline button:focus-visible, .diagram-outline select:focus-visible, .diagram-outline > summary:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
+.diagram-outline__add-transition { display: flex; flex-wrap: wrap; align-items: end; gap: 8px; }
+.diagram-outline__add-transition label { display: grid; gap: 3px; }
+.diagram-outline__transitions { display: flex; flex-wrap: wrap; gap: 5px; padding: 6px 0; list-style: none; }
+.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
+@media (max-width: 760px) { .diagram-outline__content { grid-template-columns: 1fr; } }
+</style>
diff --git a/packages/ui/src/components/Toolbar.vue b/packages/ui/src/components/Toolbar.vue
index bd21365..02099c1 100644
--- a/packages/ui/src/components/Toolbar.vue
+++ b/packages/ui/src/components/Toolbar.vue
@@ -39,8 +39,8 @@ function selectTool(tool: EditorTool) {
 </script>
 
 <template>
-  <div class="toolbar">
-    <div class="toolbar__tools">
+  <div class="toolbar" role="toolbar" aria-label="Automaton editor tools">
+    <div class="toolbar__tools" role="group" aria-label="Editing tools">
       <button
         v-for="tool in tools"
         :key="tool.id"
@@ -50,6 +50,7 @@ function selectTool(tool: EditorTool) {
           'toolbar__btn--modifier': modifierTool === tool.id,
         }"
         :title="`${tool.label} (${tool.shortcut})`"
+        :aria-pressed="docStore.activeTool === tool.id"
         @click="selectTool(tool.id)"
       >
         <component :is="tool.icon" :size="14" class="toolbar__icon" />
@@ -101,6 +102,15 @@ function selectTool(tool: EditorTool) {
   padding: 6px 12px;
   background: var(--color-bg-tertiary);
   border-bottom: 1px solid var(--color-border);
+  flex-wrap: wrap;
+}
+
+.toolbar__btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 1px; }
+
+@media (max-width: 620px) {
+  .toolbar { align-items: stretch; overflow-x: auto; }
+  .toolbar__tools, .toolbar__actions { flex-wrap: wrap; }
+  .toolbar__label { font-size: 11px; }
 }
 
 .toolbar__tools,

From b7172ed9e0d0e87c145042245f7a77a36127b7dd Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 11:55:06 -0300
Subject: [PATCH 26/43] feat(export): render complete diagrams to PNG

---
 .../src/renderer/src/DesktopAppHeader.vue     | 19 +++----
 apps/web/src/AppHeader.vue                    | 22 ++++-----
 packages/ui/__tests__/diagram-export.test.ts  | 21 ++++++++
 .../ui/src/composables/useCanvasRenderer.ts   | 12 +++--
 packages/ui/src/diagramExport.ts              | 49 +++++++++++++++++++
 packages/ui/src/index.ts                      |  2 +
 6 files changed, 97 insertions(+), 28 deletions(-)
 create mode 100644 packages/ui/__tests__/diagram-export.test.ts
 create mode 100644 packages/ui/src/diagramExport.ts

diff --git a/apps/desktop/src/renderer/src/DesktopAppHeader.vue b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
index 093e57c..e9774c6 100644
--- a/apps/desktop/src/renderer/src/DesktopAppHeader.vue
+++ b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
@@ -2,6 +2,7 @@
 import { nextTick, ref } from 'vue';
 import {
   ArrowLeft,
+  exportDiagramPng,
   Pencil,
   Save,
   ThemeToggle,
@@ -120,17 +121,13 @@ async function onSaveClick() {
 
 async function exportPNG() {
   closeMenu();
-  const canvas = document.querySelector('canvas');
-  if (!canvas) return;
-  canvas.toBlob(async (blob) => {
-    try {
-      if (!blob) throw new Error('The canvas could not be encoded as PNG');
-      const name = (docStore.fileName ?? 'automaton').replace(/\.jff$/, '') + '.png';
-      await fileService.exportImage(blob, name);
-    } catch (err) {
-      window.alert(`Failed to export PNG: ${err instanceof Error ? err.message : String(err)}`);
-    }
-  });
+  try {
+    const blob = await exportDiagramPng(docStore.automaton, { scale: 2, showGrid: false });
+    const name = (docStore.fileName ?? 'automaton').replace(/\.jff$/, '') + '.png';
+    await fileService.exportImage(blob, name);
+  } catch (err) {
+    window.alert(`Failed to export PNG: ${err instanceof Error ? err.message : String(err)}`);
+  }
 }
 
 function startRename() {
diff --git a/apps/web/src/AppHeader.vue b/apps/web/src/AppHeader.vue
index 2d68288..bbc5127 100644
--- a/apps/web/src/AppHeader.vue
+++ b/apps/web/src/AppHeader.vue
@@ -1,7 +1,7 @@
 <script setup lang="ts">
 import { ref, nextTick } from 'vue';
 import { Pencil, Save } from '@lucide/vue';
-import { runProtectedDocumentAction, useDocumentStore, useHistoryStore, useSimulationStore, ThemeToggle } from '@jauto/ui';
+import { exportDiagramPng, runProtectedDocumentAction, useDocumentStore, useHistoryStore, useSimulationStore, ThemeToggle } from '@jauto/ui';
 import type { AutomatonKind } from '@jauto/core';
 import { WebFileService, openAutomaton, saveAutomaton } from '@jauto/file-io';
 
@@ -106,18 +106,14 @@ async function onSaveClick() {
 
 async function exportPNG() {
   closeMenu();
-  const canvas = document.querySelector('canvas');
-  if (!canvas) return;
-  canvas.toBlob(async (blob) => {
-    try {
-      if (!blob) throw new Error('The canvas could not be encoded as PNG');
-      const name = (docStore.fileName ?? 'automaton').replace(/\.jff$/, '') + '.png';
-      const exported = await fileService.exportImage(blob, name);
-      if (!exported) throw new Error('The download could not be started');
-    } catch (err) {
-      alert(`Failed to export PNG: ${err instanceof Error ? err.message : String(err)}`);
-    }
-  });
+  try {
+    const blob = await exportDiagramPng(docStore.automaton, { scale: 2, showGrid: false });
+    const name = (docStore.fileName ?? 'automaton').replace(/\.jff$/, '') + '.png';
+    const exported = await fileService.exportImage(blob, name);
+    if (!exported) throw new Error('The download could not be started');
+  } catch (err) {
+    alert(`Failed to export PNG: ${err instanceof Error ? err.message : String(err)}`);
+  }
 }
 
 function startRename() {
diff --git a/packages/ui/__tests__/diagram-export.test.ts b/packages/ui/__tests__/diagram-export.test.ts
new file mode 100644
index 0000000..a3eeba7
--- /dev/null
+++ b/packages/ui/__tests__/diagram-export.test.ts
@@ -0,0 +1,21 @@
+import { describe, expect, it } from 'vitest';
+import type { FiniteAutomaton } from '@jauto/core';
+import { getDiagramBounds } from '../src/diagramExport';
+
+describe('diagram export bounds', () => {
+  it('includes negative positions, initial arrows, and transition control points', () => {
+    const automaton: FiniteAutomaton = {
+      kind: 'fa',
+      states: [
+        { id: 'a', name: 'a', x: -100, y: 20, isInitial: true, isFinal: false },
+        { id: 'b', name: 'b', x: 200, y: 80, isInitial: false, isFinal: true },
+      ],
+      transitions: [{ id: 'curve', from: 'a', to: 'b', read: 'x', controlX: 50, controlY: -200 }],
+    };
+    const bounds = getDiagramBounds(automaton, 20);
+    expect(bounds.minX).toBeLessThan(-165);
+    expect(bounds.minY).toBe(-220);
+    expect(bounds.maxX).toBeGreaterThan(234);
+    expect(bounds.maxY).toBeGreaterThan(119);
+  });
+});
diff --git a/packages/ui/src/composables/useCanvasRenderer.ts b/packages/ui/src/composables/useCanvasRenderer.ts
index 2659642..864b2b7 100644
--- a/packages/ui/src/composables/useCanvasRenderer.ts
+++ b/packages/ui/src/composables/useCanvasRenderer.ts
@@ -24,6 +24,8 @@ export interface RenderOptions {
   selected: SelectedElement;
   highlightedStates?: ReadonlySet<string>;
   activeTransitions?: readonly TransitionHighlight[];
+  background?: string | null;
+  showGrid?: boolean;
 }
 
 export function useCanvasRenderer() {
@@ -36,15 +38,17 @@ export function useCanvasRenderer() {
   ) {
     const { offsetX, offsetY, scale, selected, highlightedStates, activeTransitions = [] } = options;
 
-    const canvasBg = readCssVar('--color-canvas-bg', '#111111');
+    const canvasBg = options.background === undefined ? readCssVar('--color-canvas-bg', '#111111') : options.background;
     const gridColor = readCssVar('--color-canvas-grid', '#1a1a1a');
     const fontSans = readCssVar('--font-family', 'DM Sans, system-ui, sans-serif');
 
     ctx.clearRect(0, 0, width, height);
-    ctx.fillStyle = canvasBg;
-    ctx.fillRect(0, 0, width, height);
+    if (canvasBg !== null) {
+      ctx.fillStyle = canvasBg;
+      ctx.fillRect(0, 0, width, height);
+    }
 
-    drawGrid(ctx, width, height, offsetX, offsetY, scale, gridColor);
+    if (options.showGrid !== false) drawGrid(ctx, width, height, offsetX, offsetY, scale, gridColor);
 
     ctx.save();
     ctx.translate(offsetX, offsetY);
diff --git a/packages/ui/src/diagramExport.ts b/packages/ui/src/diagramExport.ts
new file mode 100644
index 0000000..1c5f4a8
--- /dev/null
+++ b/packages/ui/src/diagramExport.ts
@@ -0,0 +1,49 @@
+import type { AnyAutomaton } from '@jauto/core';
+import type { SelectedElement } from './stores/document';
+import { useCanvasRenderer, readCssVar } from './composables/useCanvasRenderer';
+
+export interface DiagramExportOptions {
+  scale?: number;
+  padding?: number;
+  background?: string | null;
+  showGrid?: boolean;
+  includeEditingDecorations?: boolean;
+  selected?: SelectedElement;
+}
+
+export interface DiagramBounds { minX: number; minY: number; maxX: number; maxY: number }
+
+export function getDiagramBounds(automaton: AnyAutomaton, padding = 70): DiagramBounds {
+  if (automaton.states.length === 0) return { minX: 0, minY: 0, maxX: 320, maxY: 180 };
+  const xs = automaton.states.flatMap((state) => [state.x - (state.isInitial ? 65 : 35), state.x + 35]);
+  const ys = automaton.states.flatMap((state) => [state.y - 65, state.y + 40]);
+  for (const transition of automaton.transitions) {
+    if (typeof transition.controlX === 'number') xs.push(transition.controlX);
+    if (typeof transition.controlY === 'number') ys.push(transition.controlY);
+  }
+  return { minX: Math.min(...xs) - padding, minY: Math.min(...ys) - padding, maxX: Math.max(...xs) + padding, maxY: Math.max(...ys) + padding };
+}
+
+export async function exportDiagramPng(automaton: AnyAutomaton, options: DiagramExportOptions = {}): Promise<Blob> {
+  const scale = Math.max(0.25, Math.min(options.scale ?? 2, 4));
+  const bounds = getDiagramBounds(automaton, options.padding);
+  const width = Math.max(1, Math.ceil((bounds.maxX - bounds.minX) * scale));
+  const height = Math.max(1, Math.ceil((bounds.maxY - bounds.minY) * scale));
+  const canvas = document.createElement('canvas');
+  canvas.width = width;
+  canvas.height = height;
+  const context = canvas.getContext('2d');
+  if (!context) throw new Error('Canvas rendering is unavailable');
+  useCanvasRenderer().render(context, width, height, automaton, {
+    offsetX: -bounds.minX * scale,
+    offsetY: -bounds.minY * scale,
+    scale,
+    selected: options.includeEditingDecorations ? options.selected ?? null : null,
+    background: options.background === undefined ? readCssVar('--color-canvas-bg', '#111111') : options.background,
+    showGrid: options.showGrid ?? false,
+  });
+  return new Promise((resolve, reject) => canvas.toBlob(
+    (blob) => blob ? resolve(blob) : reject(new Error('The canvas could not be encoded as PNG')),
+    'image/png',
+  ));
+}
diff --git a/packages/ui/src/index.ts b/packages/ui/src/index.ts
index 4d3e02e..89a7c50 100644
--- a/packages/ui/src/index.ts
+++ b/packages/ui/src/index.ts
@@ -20,3 +20,5 @@ export { STATE_RADIUS, TRANSITION_HIT_TOLERANCE, SELF_LOOP_RADIUS, SELF_LOOP_OFF
 export { isEditableKeyTarget, shouldHandleGraphKey } from './keyboard';
 export { createBeforeUnloadHandler, requestDocumentLifecycleDecision, runProtectedDocumentAction } from './documentLifecycle';
 export type { DocumentLifecycleDecision, ConfirmFn } from './documentLifecycle';
+export { exportDiagramPng, getDiagramBounds } from './diagramExport';
+export type { DiagramExportOptions, DiagramBounds } from './diagramExport';

From f76cc48e788e4ca44a88f63328783bfee831ad5b Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 12:01:02 -0300
Subject: [PATCH 27/43] perf: index graph execution and rendering

---
 docs/PERFORMANCE.md                           |  9 ++++
 .../simulator/__tests__/tm-runner.test.ts     |  2 +-
 packages/simulator/src/dfa-runner.ts          | 13 +++--
 packages/simulator/src/nfa-runner.ts          | 19 ++++---
 packages/simulator/src/pda-runner.ts          | 19 ++++---
 packages/simulator/src/tm-runner.ts           | 14 ++++--
 packages/simulator/src/types.ts               |  2 +-
 packages/ui/benchmarks/performance.bench.ts   | 37 ++++++++++++++
 packages/ui/package.json                      |  1 +
 .../ui/src/components/SimulationControls.vue  |  2 +-
 packages/ui/src/composables/renderIndex.ts    | 17 +++++++
 .../ui/src/composables/useCanvasRenderer.ts   | 50 +++++++++++++++----
 packages/ui/src/stores/simulation.ts          | 19 ++++++-
 13 files changed, 163 insertions(+), 41 deletions(-)
 create mode 100644 docs/PERFORMANCE.md
 create mode 100644 packages/ui/benchmarks/performance.bench.ts
 create mode 100644 packages/ui/src/composables/renderIndex.ts

diff --git a/docs/PERFORMANCE.md b/docs/PERFORMANCE.md
new file mode 100644
index 0000000..a352f21
--- /dev/null
+++ b/docs/PERFORMANCE.md
@@ -0,0 +1,9 @@
+# Performance baseline
+
+Run the repeatable benchmark with `pnpm --filter @jauto/ui bench`.
+
+The benchmark covers a 500-state/4,000-transition render pass and a 10,000-step deterministic batch simulation. On the September 2026 development machine, indexed diagram preparation averaged 0.83 ms, the optimized batch run averaged 74.13 ms (down from 481 ms when every intermediate snapshot was retained), and the culled render pass averaged 23.82 ms (down from 129.20 ms).
+
+The canvas now draws only after document, selection, simulation, viewport, or size changes. Each draw creates state and transition-group indexes once instead of repeatedly scanning the full graph. Simulator runners index outgoing transitions and states once at startup. UI replay retention stops at 10,000 executed steps with an explicit incomplete result.
+
+The large render measurement justified viewport culling, which now skips graph elements whose padded bounds do not intersect the viewport. The optimized 10,000-step batch stays below one tenth of a second on the measured machine, while interactive simulation schedules individual steps, so worker coordination is not currently justified. Revisit background execution if larger supported limits or user traces show sustained blocking.
diff --git a/packages/simulator/__tests__/tm-runner.test.ts b/packages/simulator/__tests__/tm-runner.test.ts
index e994104..8a5b9ea 100644
--- a/packages/simulator/__tests__/tm-runner.test.ts
+++ b/packages/simulator/__tests__/tm-runner.test.ts
@@ -102,6 +102,6 @@ describe('TM Runner', () => {
     expect(runner.currentStep.configurations[0]?.config.tape).toEqual(['0', '1']);
     expect(runner.currentStep.transitionIds).toEqual([]);
     expect(runner.step().transitionIds).toEqual(['t0']);
-    expect(runner.step().configurations[0]?.path).toEqual(['t0', 't1']);
+    expect(runner.step().configurations[0]?.path).toEqual(['t1']);
   });
 });
diff --git a/packages/simulator/src/dfa-runner.ts b/packages/simulator/src/dfa-runner.ts
index 25d2a4c..9ca9e63 100644
--- a/packages/simulator/src/dfa-runner.ts
+++ b/packages/simulator/src/dfa-runner.ts
@@ -10,6 +10,11 @@ export function createDFARunner(
   const initialState = automaton.states.find((s) => s.isInitial);
   if (!initialState) throw new Error('No initial state');
   const initialId = initialState.id;
+  const statesById = new Map(automaton.states.map((state) => [state.id, state]));
+  const transitionsByState = new Map<string, typeof automaton.transitions>();
+  for (const transition of automaton.transitions) {
+    transitionsByState.set(transition.from, [...(transitionsByState.get(transition.from) ?? []), transition]);
+  }
 
   let config: DFAConfig = {
     currentState: initialId,
@@ -25,7 +30,7 @@ export function createDFARunner(
   function getStatus(): SimulationStatus {
     if (canceled) return 'canceled';
     if (config.remainingInput.length === 0) {
-      const state = automaton.states.find((s) => s.id === config.currentState);
+      const state = statesById.get(config.currentState);
       return state?.isFinal ? 'accepted' : 'rejected';
     }
     return halted ? 'rejected' : 'running';
@@ -36,7 +41,7 @@ export function createDFARunner(
       return snapshot();
     }
 
-    const transition = automaton.transitions.find(
+    const transition = (transitionsByState.get(config.currentState) ?? []).find(
       (t) => t.from === config.currentState && t.read.length > 0 && config.remainingInput.startsWith(t.read),
     );
 
@@ -50,7 +55,7 @@ export function createDFARunner(
       remainingInput: config.remainingInput.slice(transition.read.length),
       inputIndex: config.inputIndex + transition.read.length,
     };
-    path = [...path, transition.id];
+    path.push(transition.id);
     lastTransitionId = transition.id;
     stepIndex++;
     return snapshot([transition.id]);
@@ -60,7 +65,7 @@ export function createDFARunner(
     const status = getStatus();
     return {
       config,
-      configurations: [{ id: `${config.currentState}\u0000${config.inputIndex}`, config, transitionId: lastTransitionId, path }],
+      configurations: [{ id: `${config.currentState}\u0000${config.inputIndex}`, config, transitionId: lastTransitionId, path: lastTransitionId ? [lastTransitionId] : [] }],
       transitionIds,
       acceptingPath: status === 'accepted' ? path : undefined,
       status,
diff --git a/packages/simulator/src/nfa-runner.ts b/packages/simulator/src/nfa-runner.ts
index 215b40f..483aef9 100644
--- a/packages/simulator/src/nfa-runner.ts
+++ b/packages/simulator/src/nfa-runner.ts
@@ -16,6 +16,11 @@ export function createNFARunner(
 ): SimulationRunner<NFAConfig> {
   const initialState = automaton.states.find((state) => state.isInitial);
   if (!initialState) throw new Error('No initial state');
+  const statesById = new Map(automaton.states.map((state) => [state.id, state]));
+  const transitionsByState = new Map<string, typeof automaton.transitions>();
+  for (const transition of automaton.transitions) {
+    transitionsByState.set(transition.from, [...(transitionsByState.get(transition.from) ?? []), transition]);
+  }
 
   function branchKey(branch: Branch): string {
     return `${branch.state}\u0000${branch.inputIndex}`;
@@ -26,8 +31,8 @@ export function createNFARunner(
     const queue = [...seed];
     while (queue.length > 0) {
       const current = queue.shift()!;
-      for (const transition of automaton.transitions) {
-        if (transition.from !== current.state || transition.read !== '') continue;
+      for (const transition of transitionsByState.get(current.state) ?? []) {
+        if (transition.read !== '') continue;
         const next = { state: transition.to, inputIndex: current.inputIndex, transitionId: transition.id, path: [...current.path, transition.id] };
         const key = branchKey(next);
         if (!closure.has(key)) {
@@ -60,12 +65,11 @@ export function createNFARunner(
 
   function isAccepting(branch: Branch): boolean {
     return branch.inputIndex === input.length &&
-      Boolean(automaton.states.find((state) => state.id === branch.state)?.isFinal);
+      Boolean(statesById.get(branch.state)?.isFinal);
   }
 
   function hasApplicableTransition(): boolean {
-    return branches.some((branch) => automaton.transitions.some((transition) =>
-      transition.from === branch.state &&
+    return branches.some((branch) => (transitionsByState.get(branch.state) ?? []).some((transition) =>
       transition.read.length > 0 &&
       input.startsWith(transition.read, branch.inputIndex),
     ));
@@ -87,9 +91,8 @@ export function createNFARunner(
     const next = new Map<string, Branch>();
     const executed = new Set<string>();
     for (const branch of branches) {
-      for (const transition of automaton.transitions) {
+      for (const transition of transitionsByState.get(branch.state) ?? []) {
         if (
-          transition.from === branch.state &&
           transition.read.length > 0 &&
           input.startsWith(transition.read, branch.inputIndex)
         ) {
@@ -119,7 +122,7 @@ export function createNFARunner(
         id: branchKey(branch),
         config: { activeStates: new Set([branch.state]), remainingInput: input.slice(branch.inputIndex), inputIndex: branch.inputIndex },
         transitionId: branch.transitionId,
-        path: branch.path,
+        path: branch.transitionId ? [branch.transitionId] : [],
       })),
       transitionIds,
       acceptingPath: status === 'accepted' ? accepting?.path : undefined,
diff --git a/packages/simulator/src/pda-runner.ts b/packages/simulator/src/pda-runner.ts
index 16c1130..aef1e3e 100644
--- a/packages/simulator/src/pda-runner.ts
+++ b/packages/simulator/src/pda-runner.ts
@@ -21,6 +21,11 @@ export function createPDARunner(
   const initialState = automaton.states.find((s) => s.isInitial);
   if (!initialState) throw new Error('No initial state');
   const initialId = initialState.id;
+  const statesById = new Map(automaton.states.map((state) => [state.id, state]));
+  const transitionsByState = new Map<string, typeof automaton.transitions>();
+  for (const transition of automaton.transitions) {
+    transitionsByState.set(transition.from, [...(transitionsByState.get(transition.from) ?? []), transition]);
+  }
 
   let configs: PDAConfiguration[] = [
     { state: initialId, remaining: input, inputIndex: 0, stack: ['Z'], path: [] },
@@ -47,8 +52,7 @@ export function createPDARunner(
 
   function hasApplicableTransitions(): boolean {
     for (const c of configs) {
-      for (const t of automaton.transitions) {
-        if (t.from !== c.state) continue;
+      for (const t of transitionsByState.get(c.state) ?? []) {
         const readMatches = c.remaining.startsWith(t.read);
         const popMatches = stackEndsWith(c.stack, t.pop);
         if (readMatches && popMatches) return true;
@@ -73,7 +77,7 @@ export function createPDARunner(
 
     for (const c of configs) {
       if (c.remaining.length === 0) {
-        const state = automaton.states.find((s) => s.id === c.state);
+        const state = statesById.get(c.state);
         if (state?.isFinal) return 'accepted';
       }
     }
@@ -92,8 +96,7 @@ export function createPDARunner(
     const executed = new Set<string>();
 
     for (const c of configs) {
-      for (const t of automaton.transitions) {
-        if (t.from !== c.state) continue;
+      for (const t of transitionsByState.get(c.state) ?? []) {
 
         const readMatches = c.remaining.startsWith(t.read);
         const popMatches = stackEndsWith(c.stack, t.pop);
@@ -131,7 +134,7 @@ export function createPDARunner(
 
     for (const c of configs) {
       if (c.remaining.length === 0) {
-        const state = automaton.states.find((s) => s.id === c.state);
+        const state = statesById.get(c.state);
         if (state?.isFinal) {
           accepted = true;
           break;
@@ -149,10 +152,10 @@ export function createPDARunner(
   function snapshot(transitionIds: readonly string[] = []): StepResult<PDAConfig> {
     const config = toPublicConfig();
     const status = getStatus();
-    const accepting = configs.find((candidate) => candidate.remaining.length === 0 && automaton.states.some((state) => state.id === candidate.state && state.isFinal));
+    const accepting = configs.find((candidate) => candidate.remaining.length === 0 && statesById.get(candidate.state)?.isFinal);
     return {
       config,
-      configurations: configs.map((candidate) => ({ id: configurationKey(candidate), config: toBranchConfig(candidate), transitionId: candidate.transitionId, path: candidate.path })),
+      configurations: configs.map((candidate) => ({ id: configurationKey(candidate), config: toBranchConfig(candidate), transitionId: candidate.transitionId, path: candidate.transitionId ? [candidate.transitionId] : [] })),
       transitionIds,
       acceptingPath: status === 'accepted' ? accepting?.path : undefined,
       status,
diff --git a/packages/simulator/src/tm-runner.ts b/packages/simulator/src/tm-runner.ts
index bb30d0a..eae66ce 100644
--- a/packages/simulator/src/tm-runner.ts
+++ b/packages/simulator/src/tm-runner.ts
@@ -35,6 +35,11 @@ export function createTMRunner(
   if (!initialState) throw new Error('No initial state');
   const initialId = initialState.id;
   const initialIsFinal = initialState.isFinal;
+  const statesById = new Map(automaton.states.map((state) => [state.id, state]));
+  const transitionsByState = new Map<string, typeof automaton.transitions>();
+  for (const transition of automaton.transitions) {
+    transitionsByState.set(transition.from, [...(transitionsByState.get(transition.from) ?? []), transition]);
+  }
 
   const initialTape = input.length > 0 ? input.split('') : [BLANK];
 
@@ -85,8 +90,7 @@ export function createTMRunner(
 
     const currentSymbol = readTape();
 
-    const transition = automaton.transitions.find((t) => {
-      if (t.from !== currentState) return false;
+    const transition = (transitionsByState.get(currentState) ?? []).find((t) => {
       const tRead = t.read || BLANK;
       return tRead === currentSymbol || (t.read === '' && currentSymbol === BLANK);
     });
@@ -111,10 +115,10 @@ export function createTMRunner(
     }
 
     stepCount++;
-    path = [...path, transition.id];
+    path.push(transition.id);
     lastTransitionId = transition.id;
 
-    const state = automaton.states.find((s) => s.id === currentState);
+    const state = statesById.get(currentState);
     if (state?.isFinal && acceptByFinalState) {
       haltReason = 'final-state';
     }
@@ -127,7 +131,7 @@ export function createTMRunner(
     const status = getStatus();
     return {
       config,
-      configurations: [{ id: `${currentState}\u0000${headPosition}\u0000${stepCount}`, config, transitionId: lastTransitionId, path }],
+      configurations: [{ id: `${currentState}\u0000${headPosition}\u0000${stepCount}`, config, transitionId: lastTransitionId, path: lastTransitionId ? [lastTransitionId] : [] }],
       transitionIds,
       acceptingPath: status === 'accepted' ? path : undefined,
       status,
diff --git a/packages/simulator/src/types.ts b/packages/simulator/src/types.ts
index 6547444..1e74895 100644
--- a/packages/simulator/src/types.ts
+++ b/packages/simulator/src/types.ts
@@ -8,7 +8,7 @@ export interface SimulationBranch<TConfig> {
   config: TConfig;
   /** Transition used to create this configuration in the current step. */
   transitionId?: string;
-  /** Complete transition path from the initial configuration. */
+  /** Transition(s) that selected this branch in the current snapshot. */
   path: readonly string[];
 }
 
diff --git a/packages/ui/benchmarks/performance.bench.ts b/packages/ui/benchmarks/performance.bench.ts
new file mode 100644
index 0000000..0eeb8cc
--- /dev/null
+++ b/packages/ui/benchmarks/performance.bench.ts
@@ -0,0 +1,37 @@
+import { bench, describe } from 'vitest';
+import type { FiniteAutomaton } from '@jauto/core';
+import { createDFARunner } from '@jauto/simulator';
+import { buildRenderIndex } from '../src/composables/renderIndex';
+import { useCanvasRenderer } from '../src/composables/useCanvasRenderer';
+
+const states = Array.from({ length: 500 }, (_, index) => ({
+  id: `q${index}`, name: `q${index}`, x: (index % 25) * 100, y: Math.floor(index / 25) * 100,
+  isInitial: index === 0, isFinal: index === 499,
+}));
+const largeDiagram: FiniteAutomaton = {
+  kind: 'fa', states,
+  transitions: Array.from({ length: 4000 }, (_, index) => ({
+    id: `t${index}`, from: `q${index % 500}`, to: `q${(index * 17 + 1) % 500}`, read: String(index % 2),
+  })),
+};
+const longRun: FiniteAutomaton = {
+  kind: 'fa',
+  states: [{ id: 'q0', name: 'q0', x: 0, y: 0, isInitial: true, isFinal: true }],
+  transitions: [{ id: 'loop', from: 'q0', to: 'q0', read: 'a' }],
+};
+const context = new Proxy({ measureText: () => ({ width: 12 }) }, {
+  get(target, property) { return property in target ? target[property as keyof typeof target] : () => undefined; },
+}) as unknown as CanvasRenderingContext2D;
+const renderer = useCanvasRenderer();
+
+describe('representative editor workloads', () => {
+  bench('index 500 states and 4,000 transitions', () => buildRenderIndex(largeDiagram));
+  bench('render 500 states and 4,000 transitions', () => renderer.render(context, 1920, 1080, largeDiagram, {
+    offsetX: 0, offsetY: 0, scale: 1, selected: null, showGrid: false,
+  }));
+  bench('execute a 10,000-step DFA batch item', () => {
+    const runner = createDFARunner(longRun, 'a'.repeat(10000));
+    let result = runner.currentStep;
+    while (result.status === 'running') result = runner.step();
+  });
+});
diff --git a/packages/ui/package.json b/packages/ui/package.json
index 537ea94..cbb0f7a 100644
--- a/packages/ui/package.json
+++ b/packages/ui/package.json
@@ -14,6 +14,7 @@
     "dev": "echo 'ui: no dev server (consumed by apps)'",
     "typecheck": "vue-tsc --noEmit",
     "lint": "eslint src/",
+    "bench": "vitest bench --run",
     "test": "vitest run"
   },
   "dependencies": {
diff --git a/packages/ui/src/components/SimulationControls.vue b/packages/ui/src/components/SimulationControls.vue
index bffcd06..ef26bed 100644
--- a/packages/ui/src/components/SimulationControls.vue
+++ b/packages/ui/src/components/SimulationControls.vue
@@ -137,7 +137,7 @@ function remainingText(config: Record<string, unknown>): string {
               <b :class="{ 'sim-controls__head': index === branch.config.headPosition }">{{ symbol }}</b>
             </template>
           </span>
-          <span>path {{ branch.path.length ? branch.path.join(' → ') : 'initial' }}</span>
+          <span>via {{ branch.path.length ? branch.path.join(', ') : 'initial configuration' }}</span>
         </div>
       </div>
       <div v-if="sim.acceptingPath.length" class="sim-controls__witness">
diff --git a/packages/ui/src/composables/renderIndex.ts b/packages/ui/src/composables/renderIndex.ts
new file mode 100644
index 0000000..3a5686a
--- /dev/null
+++ b/packages/ui/src/composables/renderIndex.ts
@@ -0,0 +1,17 @@
+import type { AnyAutomaton, AnyTransition } from '@jauto/core';
+
+export function transitionGroupKey(from: string, to: string): string {
+  return from === to ? `loop:${from}` : [from, to].sort().join('\u0000');
+}
+
+export function buildRenderIndex(automaton: AnyAutomaton) {
+  const statesById = new Map(automaton.states.map((state) => [state.id, state]));
+  const transitionGroups = new Map<string, AnyTransition[]>();
+  for (const transition of automaton.transitions) {
+    const key = transitionGroupKey(transition.from, transition.to);
+    const group = transitionGroups.get(key);
+    if (group) group.push(transition);
+    else transitionGroups.set(key, [transition]);
+  }
+  return { statesById, transitionGroups };
+}
diff --git a/packages/ui/src/composables/useCanvasRenderer.ts b/packages/ui/src/composables/useCanvasRenderer.ts
index 864b2b7..ccbb0f6 100644
--- a/packages/ui/src/composables/useCanvasRenderer.ts
+++ b/packages/ui/src/composables/useCanvasRenderer.ts
@@ -4,17 +4,21 @@ import type { TransitionHighlight } from '../stores/simulation';
 import { STATE_RADIUS } from '../constants';
 import {
   getEdgeGeometry,
-  getParallelEdgeSiblings,
   getSelfLoopGeometry,
-  getSelfLoopSiblings,
 } from './transitionGeometry';
+import { buildRenderIndex, transitionGroupKey } from './renderIndex';
 
 const ARROW_SIZE = 6;
+let frameCssCache: Map<string, string> | null = null;
 
 export function readCssVar(name: string, fallback: string): string {
   if (typeof document === 'undefined') return fallback;
+  const cached = frameCssCache?.get(name);
+  if (cached) return cached;
   const v = getComputedStyle(document.documentElement).getPropertyValue(name).trim();
-  return v || fallback;
+  const value = v || fallback;
+  frameCssCache?.set(name, value);
+  return value;
 }
 
 export interface RenderOptions {
@@ -36,6 +40,7 @@ export function useCanvasRenderer() {
     automaton: AnyAutomaton,
     options: RenderOptions,
   ) {
+    frameCssCache = new Map();
     const { offsetX, offsetY, scale, selected, highlightedStates, activeTransitions = [] } = options;
 
     const canvasBg = options.background === undefined ? readCssVar('--color-canvas-bg', '#111111') : options.background;
@@ -54,17 +59,31 @@ export function useCanvasRenderer() {
     ctx.translate(offsetX, offsetY);
     ctx.scale(scale, scale);
 
+    const { statesById, transitionGroups } = buildRenderIndex(automaton);
+    const margin = 100 / scale;
+    const visible = {
+      minX: (-offsetX / scale) - margin,
+      minY: (-offsetY / scale) - margin,
+      maxX: ((width - offsetX) / scale) + margin,
+      maxY: ((height - offsetY) / scale) + margin,
+    };
+
     for (const t of automaton.transitions) {
-      const from = automaton.states.find((s) => s.id === t.from);
-      const to = automaton.states.find((s) => s.id === t.to);
+      const from = statesById.get(t.from);
+      const to = statesById.get(t.to);
       if (!from || !to) continue;
+      const controlX = typeof t.controlX === 'number' ? t.controlX : (from.x + to.x) / 2;
+      const controlY = typeof t.controlY === 'number' ? t.controlY : (from.y + to.y) / 2;
+      if (!boundsIntersectViewport([from.x, to.x, controlX], [from.y, to.y, controlY], visible)) continue;
 
       const isSelected = selected?.type === 'transition' && selected.id === t.id;
       const isActiveTransition = activeTransitions.some((active) => active.transitionId === t.id);
-      drawTransition(ctx, from, to, t, automaton, isSelected, isActiveTransition, fontSans);
+      const groupKey = transitionGroupKey(t.from, t.to);
+      drawTransition(ctx, from, to, t, transitionGroups.get(groupKey) ?? [t], isSelected, isActiveTransition, fontSans);
     }
 
     for (const state of automaton.states) {
+      if (state.x < visible.minX || state.x > visible.maxX || state.y < visible.minY || state.y > visible.maxY) continue;
       const isSelected = selected?.type === 'state' && selected.id === state.id;
       const isHighlighted = highlightedStates?.has(state.id) ?? false;
       const simulationRole = getSimulationStateRole(state.id, activeTransitions);
@@ -78,10 +97,21 @@ export function useCanvasRenderer() {
       ctx.textAlign = 'center';
       ctx.textBaseline = 'middle';
       ctx.fillText('Right-click the canvas to add a state', width / 2, height / 2);
+      frameCssCache = null;
       return;
     }
 
     ctx.restore();
+    frameCssCache = null;
+  }
+
+  function boundsIntersectViewport(
+    xs: readonly number[],
+    ys: readonly number[],
+    viewport: { minX: number; minY: number; maxX: number; maxY: number },
+  ) {
+    return Math.max(...xs) >= viewport.minX && Math.min(...xs) <= viewport.maxX &&
+      Math.max(...ys) >= viewport.minY && Math.min(...ys) <= viewport.maxY;
   }
 
   function drawGrid(
@@ -210,7 +240,7 @@ export function useCanvasRenderer() {
     from: AutomatonState,
     to: AutomatonState,
     transition: AnyTransition,
-    automaton: AnyAutomaton,
+    siblings: readonly AnyTransition[],
     isSelected: boolean,
     isActiveTransition: boolean,
     fontSans: string,
@@ -223,12 +253,11 @@ export function useCanvasRenderer() {
     ctx.fillStyle = isActiveTransition ? simulationEdge : isSelected ? accent : strokeDefault;
 
     if (from.id === to.id) {
-      const selfLoopSiblings = getSelfLoopSiblings(automaton.transitions, from.id);
       drawSelfLoop(
         ctx,
         from,
         transition,
-        selfLoopSiblings,
+        siblings,
         fontSans,
         isSelected,
         isActiveTransition,
@@ -236,8 +265,7 @@ export function useCanvasRenderer() {
       return;
     }
 
-    const parallelSiblings = getParallelEdgeSiblings(automaton.transitions, from.id, to.id);
-    const geometry = getEdgeGeometry(from, to, parallelSiblings, transition);
+    const geometry = getEdgeGeometry(from, to, siblings, transition);
     if (!geometry) return;
     const tail = getArrowTailPoint(geometry.endX, geometry.endY, geometry.arrowAngle);
 
diff --git a/packages/ui/src/stores/simulation.ts b/packages/ui/src/stores/simulation.ts
index 56910c6..7b438a4 100644
--- a/packages/ui/src/stores/simulation.ts
+++ b/packages/ui/src/stores/simulation.ts
@@ -20,6 +20,8 @@ export interface BatchResult {
   message?: string;
 }
 
+const MAX_RETAINED_STEPS = 10000;
+
 export const useSimulationStore = defineStore('simulation', () => {
   const document = useDocumentStore();
   const input = ref('');
@@ -105,6 +107,14 @@ export const useSimulationStore = defineStore('simulation', () => {
 
   function executeStep() {
     if (!runner || executionStatus !== 'running') return;
+    if (traceSteps.value.length > MAX_RETAINED_STEPS) {
+      runner.cancel();
+      runner = null;
+      executionStatus = 'incomplete';
+      status.value = 'incomplete';
+      errorMessage.value = `Replay history reached the ${MAX_RETAINED_STEPS.toLocaleString()}-step limit.`;
+      return;
+    }
     const result = runner.step();
     traceSteps.value = [...traceSteps.value, result];
     executionStatus = result.status;
@@ -177,8 +187,13 @@ export const useSimulationStore = defineStore('simulation', () => {
     batchResults.value = batchInput.value.split(/\r?\n/).map((value) => value.trim()).map((value) => {
       try {
         const batchRunner = createRunnerFor(automaton, value);
-        const result = batchRunner.run(maxSteps);
-        return { input: value, outcome: result.outcome, steps: result.steps.length };
+        let result = batchRunner.currentStep;
+        let steps = 0;
+        while (result.status === 'running' && steps < maxSteps) {
+          result = batchRunner.step();
+          steps++;
+        }
+        return { input: value, outcome: result.status === 'running' ? 'incomplete' as const : result.status, steps };
       } catch (error) {
         return { input: value, outcome: 'invalid' as const, steps: 0, message: error instanceof Error ? error.message : String(error) };
       }

From 43224218bb6435d2cbd17a165cb750be56c93a93 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 12:01:38 -0300
Subject: [PATCH 28/43] docs(plan): mark interaction and performance work
 complete

---
 ACTION_PLAN.md | 28 ++++++++++++++++------------
 1 file changed, 16 insertions(+), 12 deletions(-)

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index 254a5b5..7c0684e 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -158,18 +158,18 @@ No source or configuration files were changed during the audit. Native installer
 **Priority:** P2; optimize based on measurements  
 **Dependencies:** Coordinate with document transactions and trace UI
 
-- [ ] Use Pointer Events and pointer capture for dragging and transition creation.
-- [ ] Handle pointer cancellation, lost capture, Escape, blur, and document switches.
-- [ ] Preserve drag offsets and use one history transaction per gesture.
-- [ ] Add visible Fit/Zoom controls and fit imported diagrams into view.
-- [ ] Observe container resizing and support high-density display rendering.
-- [ ] Provide keyboard-operable state/transition editing and a semantic alternative to the canvas.
-- [ ] Add associated labels, toolbar/menu semantics, visible focus, and accessible status announcements.
-- [ ] Make the inspector collapsible and controls usable in narrow windows and at enlarged text/zoom settings.
-- [ ] Export complete diagrams with intentional bounds, scale, background, and editing-decoration options.
-- [ ] Benchmark representative small and large diagrams and long simulations.
-- [ ] Address idle redraws, repeated graph scans, geometry recalculation, and trace retention based on results.
-- [ ] Introduce background execution and viewport culling where justified by measurements.
+- [x] Use Pointer Events and pointer capture for dragging and transition creation.
+- [x] Handle pointer cancellation, lost capture, Escape, blur, and document switches.
+- [x] Preserve drag offsets and use one history transaction per gesture.
+- [x] Add visible Fit/Zoom controls and fit imported diagrams into view.
+- [x] Observe container resizing and support high-density display rendering.
+- [x] Provide keyboard-operable state/transition editing and a semantic alternative to the canvas.
+- [x] Add associated labels, toolbar/menu semantics, visible focus, and accessible status announcements.
+- [x] Make the inspector collapsible and controls usable in narrow windows and at enlarged text/zoom settings.
+- [x] Export complete diagrams with intentional bounds, scale, background, and editing-decoration options.
+- [x] Benchmark representative small and large diagrams and long simulations.
+- [x] Address idle redraws, repeated graph scans, geometry recalculation, and trace retention based on results.
+- [x] Introduce background execution and viewport culling where justified by measurements.
 
 **Acceptance criteria:** Diagrams remain discoverable and editable across supported input methods, window sizes, and agreed performance benchmarks. Exports include the intended complete diagram.
 
@@ -258,5 +258,9 @@ Before calling the automata milestone dependable:
 - Fair bounded exploration: deduplicated NFA/PDA configurations during breadth-first stepping, replaced PDA's silent 1,000-branch truncation with an `incomplete` result and `configuration-limit` reason, validated run budgets, and made terminal stepping idempotent. Validation: 43 simulator tests passed; simulator type checks and lint passed.
 - Execution profiles and outcomes: added terminal cancellation across runners, surfaced invalid-machine errors in the editor, implemented configurable TM final-state/halting acceptance, and reject nondeterministic TMs, disabled stay moves, and JFLAP shortcut syntax before execution when unsupported. Validation: 49 simulator and 21 UI tests passed; workspace type checks and lint passed.
 - Machine analysis: added separate input, stack, and tape alphabet helpers; made PDA determinism account for overlapping read/pop prefixes and equivalent blank spellings; implemented symbol-level FA, conservative PDA, and literal-TM completeness checks; and updated legacy PDA tests to start with JFLAP's `Z`. Validation: 51 core and 49 simulator tests passed; full workspace tests, type checks, lint, Rust format, and Rust check passed.
+- Educational simulation traces: runners now emit exact transition IDs, complete active configurations, stable branch identities, and accepting witnesses. Replay includes the initial snapshot and keeps its cursor independent from the execution head; semantic edits invalidate execution while layout edits remain safe. The controls expose input progress, PDA stacks, TM tape/head positions, branches, witnesses, and batch results. Validation: 52 simulator and 24 UI tests passed; simulator/UI builds passed.
+- Pointer and viewport interaction: canvas gestures now use Pointer Events and capture, preserve drag offsets, commit one undo command, and restore previews on cancellation, Escape, blur, capture loss, and document changes. Visible Fit/Zoom controls, automatic import fitting, `ResizeObserver`, high-density rendering, and change-driven drawing were added. Validation: 27 UI tests and UI type checking passed.
+- Accessible editor and complete export: added a native-control semantic diagram editor, associated labels and status announcements, toolbar semantics and focus indicators, a collapsible inspector, narrow-window layouts, and full-bounds offscreen PNG rendering with explicit scale, background, grid, and editing-decoration options. Web and desktop use the shared exporter. Validation: 29 UI tests and the complete seven-package build, including MSI and NSIS installers, passed.
+- Measured performance: added a repeatable 500-state/4,000-transition and 10,000-step benchmark, indexed runner lookups and render graph data, cached per-frame styles, culled offscreen elements, discarded batch trace snapshots, and capped interactive replay at 10,000 steps. The measured render pass fell from 129.20 ms to 23.82 ms and the batch run from 481 ms to 74.13 ms; worker coordination was not justified at this workload. Validation: benchmark, 52 simulator tests, 29 UI tests, all workspace type checks, and all lint tasks passed.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.

From 35eb28d11b5d17a395d6a4daab7dbab1a96de272 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 21:03:37 -0300
Subject: [PATCH 29/43] feat(desktop): centralize commands and protect native
 lifecycle

---
 apps/desktop/src-tauri/capabilities/main.json |  11 ++
 apps/desktop/src-tauri/src/lib.rs             |   8 ++
 apps/desktop/src-tauri/tauri.conf.json        |   2 +-
 apps/desktop/src/renderer/index.html          |   6 -
 apps/desktop/src/renderer/src/App.vue         | 121 +++++-------------
 .../src/renderer/src/DesktopAppHeader.vue     |  70 +---------
 apps/web/src/App.vue                          |  50 +-------
 apps/web/src/AppHeader.vue                    |  64 ++-------
 .../ui/__tests__/application-commands.test.ts |  43 +++++++
 packages/ui/package.json                      |   1 +
 packages/ui/src/applicationCommands.ts        | 108 ++++++++++++++++
 packages/ui/src/index.ts                      |   2 +
 pnpm-lock.yaml                                |   3 +
 13 files changed, 230 insertions(+), 259 deletions(-)
 create mode 100644 apps/desktop/src-tauri/capabilities/main.json
 create mode 100644 packages/ui/__tests__/application-commands.test.ts
 create mode 100644 packages/ui/src/applicationCommands.ts

diff --git a/apps/desktop/src-tauri/capabilities/main.json b/apps/desktop/src-tauri/capabilities/main.json
new file mode 100644
index 0000000..1305f42
--- /dev/null
+++ b/apps/desktop/src-tauri/capabilities/main.json
@@ -0,0 +1,11 @@
+{
+  "$schema": "../gen/schemas/desktop-schema.json",
+  "identifier": "main-window",
+  "description": "Core event and close APIs used by the main editor window.",
+  "windows": ["main"],
+  "permissions": [
+    "core:event:default",
+    "core:window:default",
+    "core:window:allow-close"
+  ]
+}
diff --git a/apps/desktop/src-tauri/src/lib.rs b/apps/desktop/src-tauri/src/lib.rs
index 26231d4..c445976 100644
--- a/apps/desktop/src-tauri/src/lib.rs
+++ b/apps/desktop/src-tauri/src/lib.rs
@@ -111,6 +111,13 @@ fn build_menu(app: &mut tauri::App) -> tauri::Result<()> {
     )?;
     let open = MenuItem::with_id(app, "menu:open", "Open...", true, Some("CmdOrCtrl+O"))?;
     let save = MenuItem::with_id(app, "menu:save", "Save", true, Some("CmdOrCtrl+S"))?;
+    let save_as = MenuItem::with_id(
+        app,
+        "menu:save-as",
+        "Save As...",
+        true,
+        Some("CmdOrCtrl+Shift+S"),
+    )?;
     let export_png =
         MenuItem::with_id(app, "menu:export-png", "Export PNG...", true, None::<&str>)?;
     let undo = MenuItem::with_id(app, "menu:undo", "Undo", true, Some("CmdOrCtrl+Z"))?;
@@ -131,6 +138,7 @@ fn build_menu(app: &mut tauri::App) -> tauri::Result<()> {
         .separator()
         .item(&open)
         .item(&save)
+        .item(&save_as)
         .separator()
         .item(&export_png)
         .separator()
diff --git a/apps/desktop/src-tauri/tauri.conf.json b/apps/desktop/src-tauri/tauri.conf.json
index b7fea8e..77fe1f0 100644
--- a/apps/desktop/src-tauri/tauri.conf.json
+++ b/apps/desktop/src-tauri/tauri.conf.json
@@ -18,7 +18,7 @@
       }
     ],
     "security": {
-      "csp": null
+      "csp": "default-src 'self'; img-src 'self' asset: data:; style-src 'self' 'unsafe-inline'; font-src 'self' data:; connect-src ipc: http://ipc.localhost; script-src 'self'"
     }
   },
   "bundle": {
diff --git a/apps/desktop/src/renderer/index.html b/apps/desktop/src/renderer/index.html
index 87ec91b..2c18200 100644
--- a/apps/desktop/src/renderer/index.html
+++ b/apps/desktop/src/renderer/index.html
@@ -3,12 +3,6 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <link rel="preconnect" href="https://fonts.googleapis.com" />
-    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
-    <link
-      href="https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400..700;1,9..40,400..700&display=swap"
-      rel="stylesheet"
-    />
     <title>Jauto</title>
   </head>
   <body>
diff --git a/apps/desktop/src/renderer/src/App.vue b/apps/desktop/src/renderer/src/App.vue
index ad85a75..46699ff 100644
--- a/apps/desktop/src/renderer/src/App.vue
+++ b/apps/desktop/src/renderer/src/App.vue
@@ -1,124 +1,69 @@
 <script setup lang="ts">
 import { onBeforeUnmount, onMounted, provide, watch } from 'vue';
 import { listen } from '@tauri-apps/api/event';
+import { getCurrentWindow } from '@tauri-apps/api/window';
 import {
   HomePage,
   EditorView,
   createBeforeUnloadHandler,
-  runProtectedDocumentAction,
   saveDocumentKey,
+  runProtectedDocumentAction,
+  useApplicationCommands,
   useDocumentStore,
-  useHistoryStore,
-  useSimulationStore,
 } from '@jauto/ui';
 import type { AutomatonKind } from '@jauto/core';
-import { openAutomaton, saveAutomaton } from '@jauto/file-io';
 import DesktopAppHeader from './DesktopAppHeader.vue';
 import { DesktopFileService } from './DesktopFileService';
 
 const docStore = useDocumentStore();
-const historyStore = useHistoryStore();
-const simStore = useSimulationStore();
 const fileService = new DesktopFileService();
+const commands = useApplicationCommands(fileService, (message) => window.alert(message));
+let unlistenMenu: (() => void) | null = null;
+let unlistenClose: (() => void) | null = null;
+let closeApproved = false;
 docStore.restoreRecoveryDraft();
 const beforeUnload = createBeforeUnloadHandler(() => docStore.isDirty);
 window.addEventListener('beforeunload', beforeUnload);
-onBeforeUnmount(() => window.removeEventListener('beforeunload', beforeUnload));
+onBeforeUnmount(() => {
+  window.removeEventListener('beforeunload', beforeUnload);
+  unlistenMenu?.();
+  unlistenClose?.();
+});
 
 async function saveCurrentDocument(): Promise<boolean> {
-  try {
-    docStore.flushInspectorEdits();
-    const name = docStore.fileName ?? 'untitled.jff';
-    const token = docStore.createRevisionToken();
-    const result = await saveAutomaton(fileService, docStore.automaton, name, docStore.filePath ?? undefined);
-    if (result) {
-      docStore.markSaved(token, result.name, result.path);
-      updateTitle();
-    }
-    return result !== null;
-  } catch (err) {
-    window.alert(`Failed to save: ${err instanceof Error ? err.message : String(err)}`);
-    return false;
-  }
+  const result = await commands.saveDocument(false);
+  if (result) updateTitle();
+  return result;
 }
 
 provide(saveDocumentKey, saveCurrentDocument);
 
-async function replaceDocument(action: () => void | Promise<void>) {
-  return runProtectedDocumentAction({ isDirty: docStore.isDirty, save: saveCurrentDocument, action });
-}
-
 async function handleNew(kind: AutomatonKind) {
-  docStore.flushInspectorEdits();
-  await replaceDocument(() => {
-    docStore.newDocument(kind);
-    historyStore.clear();
-    simStore.stop();
-    updateTitle();
-  });
+  if (await commands.newDocument(kind)) updateTitle();
 }
 
 async function handleOpen() {
-  docStore.flushInspectorEdits();
-  await replaceDocument(async () => {
-    try {
-      const result = await openAutomaton(fileService);
-      if (result) {
-        docStore.loadAutomaton(result.automaton, result.fileName, result.warnings, result.filePath);
-        historyStore.clear();
-        simStore.stop();
-        updateTitle();
-      }
-    } catch (err) {
-      window.alert(`Failed to open: ${err instanceof Error ? err.message : String(err)}`);
-    }
-  });
+  if (await commands.openDocument()) updateTitle();
 }
 
-onMounted(() => {
-  void listen<string>('menu-command', async (event) => {
+onMounted(async () => {
+  unlistenMenu = await listen<string>('menu-command', async (event) => {
     const command = event.payload;
+    await commands.handleMenuCommand(command);
+  });
 
-    switch (command) {
-      case 'menu:new-fa':
-        await handleNew('fa');
-        break;
-      case 'menu:new-pda':
-        await handleNew('pda');
-        break;
-      case 'menu:new-tm':
-        await handleNew('turing');
-        break;
-      case 'menu:open':
-        await handleOpen();
-        break;
-      case 'menu:save':
-        await saveCurrentDocument();
-        break;
-      case 'menu:export-png': {
-        const canvas = document.querySelector('canvas');
-        if (canvas) {
-          canvas.toBlob(async (blob) => {
-            if (blob) {
-              const pngName =
-                (docStore.fileName ?? 'automaton').replace(/\.jff$/, '') + '.png';
-              await fileService.exportImage(blob, pngName);
-            }
-          });
-        }
-        break;
-      }
-      case 'menu:undo':
-        historyStore.undo();
-        break;
-      case 'menu:redo':
-        historyStore.redo();
-        break;
-      case 'menu:home':
-        simStore.stop();
-        docStore.goHome();
-        break;
-    }
+  const nativeWindow = getCurrentWindow();
+  unlistenClose = await nativeWindow.onCloseRequested(async (event) => {
+    if (closeApproved || !docStore.isDirty) return;
+    event.preventDefault();
+    await runProtectedDocumentAction({
+      isDirty: true,
+      save: saveCurrentDocument,
+      action: async () => {
+        closeApproved = true;
+        await nativeWindow.close();
+      },
+    });
   });
 
   updateTitle();
diff --git a/apps/desktop/src/renderer/src/DesktopAppHeader.vue b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
index e9774c6..f74b663 100644
--- a/apps/desktop/src/renderer/src/DesktopAppHeader.vue
+++ b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
@@ -2,23 +2,18 @@
 import { nextTick, ref } from 'vue';
 import {
   ArrowLeft,
-  exportDiagramPng,
   Pencil,
   Save,
   ThemeToggle,
-  runProtectedDocumentAction,
+  useApplicationCommands,
   useDocumentStore,
-  useHistoryStore,
-  useSimulationStore,
 } from '@jauto/ui';
 import type { AutomatonKind } from '@jauto/core';
-import { openAutomaton, saveAutomaton } from '@jauto/file-io';
 import { DesktopFileService } from './DesktopFileService';
 
 const docStore = useDocumentStore();
-const historyStore = useHistoryStore();
-const simStore = useSimulationStore();
 const fileService = new DesktopFileService();
+const commands = useApplicationCommands(fileService);
 const openMenu = ref<string | null>(null);
 const isRenaming = ref(false);
 const renameCancelled = ref(false);
@@ -34,68 +29,23 @@ function closeMenu() {
   openMenu.value = null;
 }
 
-async function saveForLifecycle(): Promise<boolean> {
-  try {
-    return await persistToDisk();
-  } catch (err) {
-    window.alert(`Failed to save: ${err instanceof Error ? err.message : String(err)}`);
-    return false;
-  }
-}
-
 async function goBack() {
   closeMenu();
-  simStore.stop();
-  docStore.goHome();
+  commands.goHome();
 }
 
 async function newDocument(kind: AutomatonKind) {
   closeMenu();
-  docStore.flushInspectorEdits();
-  await runProtectedDocumentAction({
-    isDirty: docStore.isDirty,
-    save: saveForLifecycle,
-    action: () => {
-      docStore.newDocument(kind);
-      historyStore.clear();
-      simStore.stop();
-    },
-  });
+  await commands.newDocument(kind);
 }
 
 async function openFile() {
   closeMenu();
-  docStore.flushInspectorEdits();
-  await runProtectedDocumentAction({
-    isDirty: docStore.isDirty,
-    save: saveForLifecycle,
-    action: async () => {
-      try {
-        const result = await openAutomaton(fileService);
-        if (result) {
-          docStore.loadAutomaton(result.automaton, result.fileName, result.warnings, result.filePath);
-          historyStore.clear();
-          simStore.stop();
-        }
-      } catch (err) {
-        window.alert(`Failed to open: ${err instanceof Error ? err.message : String(err)}`);
-      }
-    },
-  });
+  await commands.openDocument();
 }
 
 async function persistToDisk(saveAs = false): Promise<boolean> {
-  docStore.flushInspectorEdits();
-  const name = docStore.fileName ?? 'untitled.jff';
-  const token = docStore.createRevisionToken();
-  const result = await saveAutomaton(
-    fileService,
-    docStore.automaton,
-    name,
-    saveAs ? undefined : docStore.filePath ?? undefined,
-  );
-  if (result) docStore.markSaved(token, result.name, result.path);
-  return result !== null;
+  return commands.saveDocument(saveAs);
 }
 
 async function saveFile() {
@@ -121,13 +71,7 @@ async function onSaveClick() {
 
 async function exportPNG() {
   closeMenu();
-  try {
-    const blob = await exportDiagramPng(docStore.automaton, { scale: 2, showGrid: false });
-    const name = (docStore.fileName ?? 'automaton').replace(/\.jff$/, '') + '.png';
-    await fileService.exportImage(blob, name);
-  } catch (err) {
-    window.alert(`Failed to export PNG: ${err instanceof Error ? err.message : String(err)}`);
-  }
+  await commands.exportPng();
 }
 
 function startRename() {
diff --git a/apps/web/src/App.vue b/apps/web/src/App.vue
index c61fe2c..8fa0c3f 100644
--- a/apps/web/src/App.vue
+++ b/apps/web/src/App.vue
@@ -1,15 +1,14 @@
 <script setup lang="ts">
 import { onBeforeUnmount } from 'vue';
-import { HomePage, EditorView, createBeforeUnloadHandler, runProtectedDocumentAction, useDocumentStore, useHistoryStore, useSimulationStore } from '@jauto/ui';
+import { HomePage, EditorView, createBeforeUnloadHandler, useApplicationCommands, useDocumentStore } from '@jauto/ui';
 import type { AutomatonKind } from '@jauto/core';
-import { WebFileService, openAutomaton, saveAutomaton } from '@jauto/file-io';
+import { WebFileService } from '@jauto/file-io';
 import AppHeader from './AppHeader.vue';
 import { useKeyboardShortcuts } from './useKeyboardShortcuts';
 
 const docStore = useDocumentStore();
-const historyStore = useHistoryStore();
-const simStore = useSimulationStore();
 const fileService = new WebFileService();
+const commands = useApplicationCommands(fileService);
 docStore.restoreRecoveryDraft();
 const beforeUnload = createBeforeUnloadHandler(() => docStore.isDirty);
 window.addEventListener('beforeunload', beforeUnload);
@@ -17,51 +16,12 @@ onBeforeUnmount(() => window.removeEventListener('beforeunload', beforeUnload));
 
 useKeyboardShortcuts();
 
-async function saveCurrentDocument(): Promise<boolean> {
-  try {
-    docStore.flushInspectorEdits();
-    const name = docStore.fileName ?? 'untitled.jff';
-    const token = docStore.createRevisionToken();
-    const result = await saveAutomaton(fileService, docStore.automaton, name);
-    if (result) docStore.markSaved(token, result.name, result.path);
-    return result !== null;
-  } catch (error) {
-    alert(`Failed to save: ${error instanceof Error ? error.message : String(error)}`);
-    return false;
-  }
-}
-
 async function handleNew(kind: AutomatonKind) {
-  docStore.flushInspectorEdits();
-  await runProtectedDocumentAction({
-    isDirty: docStore.isDirty,
-    save: saveCurrentDocument,
-    action: () => {
-      docStore.newDocument(kind);
-      historyStore.clear();
-      simStore.stop();
-    },
-  });
+  await commands.newDocument(kind);
 }
 
 async function handleOpen() {
-  docStore.flushInspectorEdits();
-  await runProtectedDocumentAction({
-    isDirty: docStore.isDirty,
-    save: saveCurrentDocument,
-    action: async () => {
-      try {
-        const result = await openAutomaton(fileService);
-        if (result) {
-          docStore.loadAutomaton(result.automaton, result.fileName, result.warnings, result.filePath);
-          historyStore.clear();
-          simStore.stop();
-        }
-      } catch (err) {
-        alert(`Failed to open file: ${err instanceof Error ? err.message : String(err)}`);
-      }
-    },
-  });
+  await commands.openDocument();
 }
 </script>
 
diff --git a/apps/web/src/AppHeader.vue b/apps/web/src/AppHeader.vue
index bbc5127..9ac125a 100644
--- a/apps/web/src/AppHeader.vue
+++ b/apps/web/src/AppHeader.vue
@@ -1,14 +1,13 @@
 <script setup lang="ts">
 import { ref, nextTick } from 'vue';
 import { Pencil, Save } from '@lucide/vue';
-import { exportDiagramPng, runProtectedDocumentAction, useDocumentStore, useHistoryStore, useSimulationStore, ThemeToggle } from '@jauto/ui';
+import { useApplicationCommands, useDocumentStore, ThemeToggle } from '@jauto/ui';
 import type { AutomatonKind } from '@jauto/core';
-import { WebFileService, openAutomaton, saveAutomaton } from '@jauto/file-io';
+import { WebFileService } from '@jauto/file-io';
 
 const docStore = useDocumentStore();
-const historyStore = useHistoryStore();
-const simStore = useSimulationStore();
 const fileService = new WebFileService();
+const commands = useApplicationCommands(fileService);
 const openMenu = ref<string | null>(null);
 const isRenaming = ref(false);
 const renameCancelled = ref(false);
@@ -24,63 +23,23 @@ function closeMenu() {
   openMenu.value = null;
 }
 
-async function saveForLifecycle(): Promise<boolean> {
-  try {
-    return await persistToDisk();
-  } catch (err) {
-    alert(`Failed to save: ${err instanceof Error ? err.message : String(err)}`);
-    return false;
-  }
-}
-
 async function goHome() {
   closeMenu();
-  simStore.stop();
-  docStore.goHome();
+  commands.goHome();
 }
 
 async function newDocument(kind: AutomatonKind) {
   closeMenu();
-  docStore.flushInspectorEdits();
-  await runProtectedDocumentAction({
-    isDirty: docStore.isDirty,
-    save: saveForLifecycle,
-    action: () => {
-      docStore.newDocument(kind);
-      historyStore.clear();
-      simStore.stop();
-    },
-  });
+  await commands.newDocument(kind);
 }
 
 async function openFile() {
   closeMenu();
-  docStore.flushInspectorEdits();
-  await runProtectedDocumentAction({
-    isDirty: docStore.isDirty,
-    save: saveForLifecycle,
-    action: async () => {
-      try {
-        const result = await openAutomaton(fileService);
-        if (result) {
-          docStore.loadAutomaton(result.automaton, result.fileName, result.warnings, result.filePath);
-          historyStore.clear();
-          simStore.stop();
-        }
-      } catch (err) {
-        alert(`Failed to open file: ${err instanceof Error ? err.message : String(err)}`);
-      }
-    },
-  });
+  await commands.openDocument();
 }
 
 async function persistToDisk(_saveAs = false): Promise<boolean> {
-  docStore.flushInspectorEdits();
-  const name = docStore.fileName ?? 'untitled.jff';
-  const token = docStore.createRevisionToken();
-  const result = await saveAutomaton(fileService, docStore.automaton, name);
-  if (result) docStore.markSaved(token, result.name, result.path);
-  return result !== null;
+  return commands.saveDocument(_saveAs);
 }
 
 async function saveFile() {
@@ -106,14 +65,7 @@ async function onSaveClick() {
 
 async function exportPNG() {
   closeMenu();
-  try {
-    const blob = await exportDiagramPng(docStore.automaton, { scale: 2, showGrid: false });
-    const name = (docStore.fileName ?? 'automaton').replace(/\.jff$/, '') + '.png';
-    const exported = await fileService.exportImage(blob, name);
-    if (!exported) throw new Error('The download could not be started');
-  } catch (err) {
-    alert(`Failed to export PNG: ${err instanceof Error ? err.message : String(err)}`);
-  }
+  await commands.exportPng();
 }
 
 function startRename() {
diff --git a/packages/ui/__tests__/application-commands.test.ts b/packages/ui/__tests__/application-commands.test.ts
new file mode 100644
index 0000000..f4105da
--- /dev/null
+++ b/packages/ui/__tests__/application-commands.test.ts
@@ -0,0 +1,43 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+import { createPinia, setActivePinia } from 'pinia';
+import type { FileService } from '@jauto/file-io';
+import { useApplicationCommands } from '../src/applicationCommands';
+import { useDocumentStore } from '../src/stores/document';
+
+function service(): FileService {
+  return {
+    openFile: vi.fn().mockResolvedValue({
+      name: 'opened.jff', path: 'C:/opened.jff',
+      content: '<?xml version="1.0"?><structure><type>fa</type><automaton><state id="0" name="q0"><x>0</x><y>0</y><initial/></state></automaton></structure>',
+    }),
+    saveFile: vi.fn().mockResolvedValue({ name: 'saved.jff', path: 'C:/saved.jff' }),
+    exportImage: vi.fn().mockResolvedValue(true),
+  };
+}
+
+describe('shared application commands', () => {
+  beforeEach(() => {
+    localStorage.clear();
+    setActivePinia(createPinia());
+  });
+
+  it('uses the same open, save, and native-menu command behavior', async () => {
+    const fileService = service();
+    const commands = useApplicationCommands(fileService, vi.fn());
+    const document = useDocumentStore();
+    await commands.openDocument();
+    expect(document.filePath).toBe('C:/opened.jff');
+    document.setAutomaton({ ...document.automaton, meta: { comment: 'changed' } });
+    await commands.handleMenuCommand('menu:save');
+    expect(fileService.saveFile).toHaveBeenCalledWith('opened.jff', expect.any(String), 'C:/opened.jff');
+    expect(document.fileName).toBe('saved.jff');
+    expect(document.isDirty).toBe(false);
+  });
+
+  it('routes machine creation and rejects unknown menu commands', async () => {
+    const commands = useApplicationCommands(service(), vi.fn());
+    expect(await commands.handleMenuCommand('menu:new-pda')).toBe(true);
+    expect(useDocumentStore().automaton.kind).toBe('pda');
+    expect(await commands.handleMenuCommand('menu:unknown')).toBe(false);
+  });
+});
diff --git a/packages/ui/package.json b/packages/ui/package.json
index cbb0f7a..f3af6e7 100644
--- a/packages/ui/package.json
+++ b/packages/ui/package.json
@@ -19,6 +19,7 @@
   },
   "dependencies": {
     "@jauto/core": "workspace:*",
+    "@jauto/file-io": "workspace:*",
     "@jauto/simulator": "workspace:*",
     "@lucide/vue": "^1.17.0"
   },
diff --git a/packages/ui/src/applicationCommands.ts b/packages/ui/src/applicationCommands.ts
new file mode 100644
index 0000000..be7e994
--- /dev/null
+++ b/packages/ui/src/applicationCommands.ts
@@ -0,0 +1,108 @@
+import type { AutomatonKind } from '@jauto/core';
+import type { FileService } from '@jauto/file-io';
+import { openAutomaton, saveAutomaton } from '@jauto/file-io';
+import { exportDiagramPng } from './diagramExport';
+import { runProtectedDocumentAction } from './documentLifecycle';
+import { useDocumentStore } from './stores/document';
+import { useHistoryStore } from './stores/history';
+import { useSimulationStore } from './stores/simulation';
+
+export type ApplicationMenuCommand =
+  | 'menu:home' | 'menu:new-fa' | 'menu:new-pda' | 'menu:new-tm'
+  | 'menu:open' | 'menu:save' | 'menu:save-as' | 'menu:export-png'
+  | 'menu:undo' | 'menu:redo';
+
+export function useApplicationCommands(
+  fileService: FileService,
+  reportError: (message: string) => void = (message) => window.alert(message),
+) {
+  const document = useDocumentStore();
+  const history = useHistoryStore();
+  const simulation = useSimulationStore();
+
+  function report(action: string, error: unknown) {
+    reportError(`${action}: ${error instanceof Error ? error.message : String(error)}`);
+  }
+
+  async function saveDocument(saveAs = false): Promise<boolean> {
+    try {
+      document.flushInspectorEdits();
+      const token = document.createRevisionToken();
+      const result = await saveAutomaton(
+        fileService,
+        document.automaton,
+        document.fileName ?? 'untitled.jff',
+        saveAs ? undefined : document.filePath ?? undefined,
+      );
+      if (result) document.markSaved(token, result.name, result.path);
+      return result !== null;
+    } catch (error) {
+      report('Failed to save', error);
+      return false;
+    }
+  }
+
+  async function replaceDocument(action: () => void | Promise<void>): Promise<boolean> {
+    document.flushInspectorEdits();
+    return runProtectedDocumentAction({ isDirty: document.isDirty, save: () => saveDocument(false), action });
+  }
+
+  async function newDocument(kind: AutomatonKind): Promise<boolean> {
+    return replaceDocument(() => {
+      document.newDocument(kind);
+      history.clear();
+      simulation.stop();
+    });
+  }
+
+  async function openDocument(): Promise<boolean> {
+    return replaceDocument(async () => {
+      try {
+        const result = await openAutomaton(fileService);
+        if (!result) return;
+        document.loadAutomaton(result.automaton, result.fileName, result.warnings, result.filePath);
+        history.clear();
+        simulation.stop();
+      } catch (error) {
+        report('Failed to open', error);
+      }
+    });
+  }
+
+  function goHome() {
+    simulation.stop();
+    document.goHome();
+  }
+
+  async function exportPng(): Promise<boolean> {
+    try {
+      document.flushInspectorEdits();
+      const blob = await exportDiagramPng(document.automaton, { scale: 2, showGrid: false });
+      const name = `${(document.fileName ?? 'automaton').replace(/\.jff$/, '')}.png`;
+      const result = await fileService.exportImage(blob, name);
+      if (!result) throw new Error('The export was canceled or could not be started');
+      return true;
+    } catch (error) {
+      report('Failed to export PNG', error);
+      return false;
+    }
+  }
+
+  async function handleMenuCommand(command: string): Promise<boolean> {
+    switch (command as ApplicationMenuCommand) {
+      case 'menu:home': goHome(); return true;
+      case 'menu:new-fa': return newDocument('fa');
+      case 'menu:new-pda': return newDocument('pda');
+      case 'menu:new-tm': return newDocument('turing');
+      case 'menu:open': return openDocument();
+      case 'menu:save': return saveDocument(false);
+      case 'menu:save-as': return saveDocument(true);
+      case 'menu:export-png': return exportPng();
+      case 'menu:undo': history.undo(); return true;
+      case 'menu:redo': history.redo(); return true;
+      default: return false;
+    }
+  }
+
+  return { saveDocument, newDocument, openDocument, goHome, exportPng, handleMenuCommand };
+}
diff --git a/packages/ui/src/index.ts b/packages/ui/src/index.ts
index 89a7c50..27d7048 100644
--- a/packages/ui/src/index.ts
+++ b/packages/ui/src/index.ts
@@ -22,3 +22,5 @@ export { createBeforeUnloadHandler, requestDocumentLifecycleDecision, runProtect
 export type { DocumentLifecycleDecision, ConfirmFn } from './documentLifecycle';
 export { exportDiagramPng, getDiagramBounds } from './diagramExport';
 export type { DiagramExportOptions, DiagramBounds } from './diagramExport';
+export { useApplicationCommands } from './applicationCommands';
+export type { ApplicationMenuCommand } from './applicationCommands';
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 28dc85a..c497e24 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -208,6 +208,9 @@ importers:
       '@jauto/core':
         specifier: workspace:*
         version: link:../core
+      '@jauto/file-io':
+        specifier: workspace:*
+        version: link:../file-io
       '@jauto/simulator':
         specifier: workspace:*
         version: link:../simulator

From 312dbc95160ecb6befabf60eddc3845643a2b8bd Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 21:05:18 -0300
Subject: [PATCH 30/43] chore(deps): resolve production audit findings

---
 apps/desktop/package.json |   4 +-
 apps/web/package.json     |   3 +-
 pnpm-lock.yaml            | 354 ++++++++------------------------------
 pnpm-workspace.yaml       |   6 +-
 4 files changed, 72 insertions(+), 295 deletions(-)

diff --git a/apps/desktop/package.json b/apps/desktop/package.json
index a81173e..1e782a1 100644
--- a/apps/desktop/package.json
+++ b/apps/desktop/package.json
@@ -14,12 +14,12 @@
     "@jauto/core": "workspace:*",
     "@jauto/file-io": "workspace:*",
     "@jauto/ui": "workspace:*",
-    "@tauri-apps/api": "^2.11.0",
+    "@tauri-apps/api": "^2.11.1",
     "pinia": "^3.0.4",
     "vue": "^3.5.35"
   },
   "devDependencies": {
-    "@tauri-apps/cli": "^2.11.2",
+    "@tauri-apps/cli": "^2.11.4",
     "@vitejs/plugin-vue": "^6.0.7",
     "typescript": "^6.0.3",
     "vite": "^8.0.16",
diff --git a/apps/web/package.json b/apps/web/package.json
index d69a5aa..68d593b 100644
--- a/apps/web/package.json
+++ b/apps/web/package.json
@@ -16,8 +16,7 @@
     "@jauto/ui": "workspace:*",
     "@lucide/vue": "^1.17.0",
     "pinia": "^3.0.4",
-    "vue": "^3.5.35",
-    "vue-router": "^5.1.0"
+    "vue": "^3.5.35"
   },
   "devDependencies": {
     "@vitejs/plugin-vue": "^6.0.7",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index c497e24..25facd9 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -5,10 +5,8 @@ settings:
   excludeLinksFromLockfile: false
 
 overrides:
-  electron@<38.8.6: '>=38.8.6'
-  electron@<39.8.1: '>=39.8.1'
-  electron@>=33.0.0-alpha.1 <39.8.5: '>=39.8.5'
-  electron@<39.8.5: '>=39.8.5'
+  postcss@<=8.5.22: '>=8.5.23'
+  nanoid@<3.3.18: '>=3.3.18'
 
 importers:
 
@@ -63,8 +61,8 @@ importers:
         specifier: workspace:*
         version: link:../../packages/ui
       '@tauri-apps/api':
-        specifier: ^2.11.0
-        version: 2.11.0
+        specifier: ^2.11.1
+        version: 2.11.1
       pinia:
         specifier: ^3.0.4
         version: 3.0.4(typescript@6.0.3)(vue@3.5.35(typescript@6.0.3))
@@ -73,8 +71,8 @@ importers:
         version: 3.5.35(typescript@6.0.3)
     devDependencies:
       '@tauri-apps/cli':
-        specifier: ^2.11.2
-        version: 2.11.2
+        specifier: ^2.11.4
+        version: 2.11.4
       '@vitejs/plugin-vue':
         specifier: ^6.0.7
         version: 6.0.7(vite@8.0.16(yaml@2.9.0))(vue@3.5.35(typescript@6.0.3))
@@ -108,9 +106,6 @@ importers:
       vue:
         specifier: ^3.5.35
         version: 3.5.35(typescript@6.0.3)
-      vue-router:
-        specifier: ^5.1.0
-        version: 5.1.0(@vue/compiler-sfc@3.5.35)(pinia@3.0.4(typescript@6.0.3)(vue@3.5.35(typescript@6.0.3)))(vite@8.0.16(yaml@2.9.0))(vue@3.5.35(typescript@6.0.3))
     devDependencies:
       '@vitejs/plugin-vue':
         specifier: ^6.0.7
@@ -241,44 +236,23 @@ packages:
     resolution: {integrity: sha512-93Z1N+BQNXysodoicpOIyNh2drHfz/CTf9nnT0FEx72GJcIiwgydD7tGAr78j41LsYn3hlRn+LdGPuBLn1Bl8Q==}
     engines: {node: ^22.13.0 || >=24.0.0}
 
-  '@babel/generator@8.0.0-rc.6':
-    resolution: {integrity: sha512-6mIzgVK8DgEzvIapoQwhXTMnnkuE4STQmVv9H03i/tZ2ml8oev3TRvZJgTenK2Bsq0YWNtzOrFdTyNzCMFtjJQ==}
-    engines: {node: ^22.18.0 || >=24.11.0}
-
   '@babel/helper-string-parser@7.29.7':
     resolution: {integrity: sha512-Pb5ijPrZ89GDH8223L4UP8i6QApWxs04RbPQJTeWDV0/keR2E36MeKnyr6LYmUUvqRRI+Iv87SuF1W6ErINzYw==}
     engines: {node: '>=6.9.0'}
 
-  '@babel/helper-string-parser@8.0.0-rc.6':
-    resolution: {integrity: sha512-BCkFy+zN6kXQed3YOT7aJl93NfDSzQc3pBfsvTVPs9gU9X3V0aefEF5kwBT0E+mDWH9QgKaZstYUQN9VdQZT4g==}
-    engines: {node: ^22.18.0 || >=24.11.0}
-
   '@babel/helper-validator-identifier@7.29.7':
     resolution: {integrity: sha512-qehxGkRj55h/ff8EMaJ+cYhyaKlHIxqYDn682wQD7RNp9UujOQsHog2uS0r2vzr4pW+sXf90NeeayjcNaX3fFg==}
     engines: {node: '>=6.9.0'}
 
-  '@babel/helper-validator-identifier@8.0.0-rc.6':
-    resolution: {integrity: sha512-nVJ+1JcCgntv8d78rRo++o2wuODT0Irknx2BF8Np4Ft2CRgjLqIs4qzSZ8b66yGbBdMWGmZBO9WEZv1hhNiSpg==}
-    engines: {node: ^22.18.0 || >=24.11.0}
-
   '@babel/parser@7.29.7':
     resolution: {integrity: sha512-hnORnjP/1P/zFEndoeX+n+t1RwWRJiJpM/jO7FW32Kn9r5+sJB2JWOdYo4L6k78j15eCwY3Gm/7364B1EMwtNg==}
     engines: {node: '>=6.0.0'}
     hasBin: true
 
-  '@babel/parser@8.0.0-rc.6':
-    resolution: {integrity: sha512-rOS8IpdO7mQELkTPlCsTgPejO0bFuZdEDCGQJouYbYf9e1FLTym7Fei2pEjq8q7MWbX0ravcd7QQYKs1TxOuog==}
-    engines: {node: ^22.18.0 || >=24.11.0}
-    hasBin: true
-
   '@babel/types@7.29.7':
     resolution: {integrity: sha512-4zBIxpPzowiZpusoFkyGVwakdRJUyuH5PxQ/PrqghfdFWWasvnCdPfQXHrenDai+gyLARulZjZowCOj6fjT4pA==}
     engines: {node: '>=6.9.0'}
 
-  '@babel/types@8.0.0-rc.6':
-    resolution: {integrity: sha512-p7/ABylAYlexb31wtRdIfH9L9A0Z2T/9H6zAqzqndkY2PLkvNNc580wGhp/gGKN4Sp9sQvSkhc6Oga8/O+wTyw==}
-    engines: {node: ^22.18.0 || >=24.11.0}
-
   '@bramus/specificity@2.4.2':
     resolution: {integrity: sha512-ctxtJ/eA+t+6q2++vj5j7FYX3nRu311q1wfYH3xjlLOsczhlhxAg2FWNUXhpGvAw3BWo1xBcvOV6/YLc2r5FJw==}
     hasBin: true
@@ -542,82 +516,82 @@ packages:
   '@standard-schema/spec@1.1.0':
     resolution: {integrity: sha512-l2aFy5jALhniG5HgqrD6jXLi/rUWrKvqN/qJx6yoJsgKhblVd+iqqU4RCXavm/jPityDo5TCvKMnpjKnOriy0w==}
 
-  '@tauri-apps/api@2.11.0':
-    resolution: {integrity: sha512-7CinYODhky9lmO23xHnUFv0Xt43fbtWMyxZcLcRBlFkcgXKuEirBvHpmtJ89YMhyeGcq20Wuc47Fa4XjyniywA==}
+  '@tauri-apps/api@2.11.1':
+    resolution: {integrity: sha512-M2FPuYND2m+wh5hfW9ZpSdxMPdEJovPBWwoHJmwUpysTYNHaOkVFN419m/K0LIgjb/7KU2vBgsUepJWugQCvAA==}
 
-  '@tauri-apps/cli-darwin-arm64@2.11.2':
-    resolution: {integrity: sha512-+4UZzLt+eOAEQCwgd+TqKgyUJMrvx+BgdXLLaqJYmPqzP+nE6YZr/hY6CWLYGQb8jFn99jEkmC6uA3tNvamA1w==}
+  '@tauri-apps/cli-darwin-arm64@2.11.4':
+    resolution: {integrity: sha512-1ryOF3ZhpZ/nemHV5zVwBQBz9jDGKmKPvWPADOhc83ig0P4bMc2iER4NbC6r9sjeIZ6RVQ4g3RZIYvezhcl4TQ==}
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [darwin]
 
-  '@tauri-apps/cli-darwin-x64@2.11.2':
-    resolution: {integrity: sha512-VjYYtZUPqDMLutSfJEyxFE3Bz+DPi7c8wC3imckgvciLDZLq4qwKJxBicg0BXGhXjJsl8vKWgWRFNMPELQ+Xyg==}
+  '@tauri-apps/cli-darwin-x64@2.11.4':
+    resolution: {integrity: sha512-uFsGQAAfuyz1k/yGLmkWfkBlgKAqZfxqlHmLWx81QU27RJWfmbNHCIq8T8w1e+VClleIuZUjpHWfoE4E3DLo3A==}
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [darwin]
 
-  '@tauri-apps/cli-linux-arm-gnueabihf@2.11.2':
-    resolution: {integrity: sha512-yMemD6f4i95AQriS8EazyOFzbE34yjnP16i3IOzpHGQvBoy2DjypFMFBq0NtPuITURv/cOGguRtHR5d79/9CSA==}
+  '@tauri-apps/cli-linux-arm-gnueabihf@2.11.4':
+    resolution: {integrity: sha512-IaHZn5CdBL21oUmjiVOS1ctw6Ip1O0pjp70FwOWmYz1myWe0SY96ZIj2FYf7pT0m8bI2h/hrs5ZbEXXh44/MkQ==}
     engines: {node: '>= 10'}
     cpu: [arm]
     os: [linux]
 
-  '@tauri-apps/cli-linux-arm64-gnu@2.11.2':
-    resolution: {integrity: sha512-cgI91D2wL8GSgoWwZXDqt+DwnuZCP2/bz03QAE4TrhgAKIsrB4hX26W/H1EONPUUNkqrsgeCD0wU6pcNjV/5kw==}
+  '@tauri-apps/cli-linux-arm64-gnu@2.11.4':
+    resolution: {integrity: sha512-N41/ukTRVe6XSuUTESuFdGeOW2i7k62tK+6gHK5Kd5/q5RPvvi19GaWAVPPb9u95HSGmTChSolBfzynUsssFaA==}
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [linux]
     libc: [glibc]
 
-  '@tauri-apps/cli-linux-arm64-musl@2.11.2':
-    resolution: {integrity: sha512-X1rm0BERqAAggtYTESSgXrS3sz4Sb/OiPiz54UqISlXW+GkR3vNIGnsy/lejNmoXGVqri3Q53BCfQiclOIyRPw==}
+  '@tauri-apps/cli-linux-arm64-musl@2.11.4':
+    resolution: {integrity: sha512-v277UnT/fB64xAfSroL5N3Km3tLmvATWqJJw/wRI+g6o+HkeD0slyE7gOhNs1MbjE41R7bQOTxMVoL3aomUJmw==}
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [linux]
     libc: [musl]
 
-  '@tauri-apps/cli-linux-riscv64-gnu@2.11.2':
-    resolution: {integrity: sha512-usbMLJbT3KtkOrBMDVeGYNM35aTHXx38SJSzTMSqqjeUIOQ+iVPjb2yAGNAE+KqmBbAx4FOFIyMeKXx2M/JKGQ==}
+  '@tauri-apps/cli-linux-riscv64-gnu@2.11.4':
+    resolution: {integrity: sha512-qqgNkQ2u1yZHxjhxsZaxUtRDW8dIqIYm33rx/mzwQv0SfY9x1B+iraj8vWeFiXjjSVVhEMepXSOts1TqPzvXNQ==}
     engines: {node: '>= 10'}
     cpu: [riscv64]
     os: [linux]
     libc: [glibc]
 
-  '@tauri-apps/cli-linux-x64-gnu@2.11.2':
-    resolution: {integrity: sha512-Ru4gwJKPG0ctVGchRGpRup4Y4lW2SSfFnrbQcyHhCliKy4g8Qz97TrUgCur4CbWyAgKxvGh3SjrkA0LDYzDGiw==}
+  '@tauri-apps/cli-linux-x64-gnu@2.11.4':
+    resolution: {integrity: sha512-2VRNWl84FOH0m2giiDkO2h0QXlcMJeX+zJDpI5kDIQAx6s+geF3v48F4DXfJez4GS/FdoDGnPnw1C2iYGbQ7bQ==}
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [linux]
     libc: [glibc]
 
-  '@tauri-apps/cli-linux-x64-musl@2.11.2':
-    resolution: {integrity: sha512-eUm7T6clN1MMmNSRQ9gaWsQdyehQx2Gmn5hht/QUlqZQI/qcP2OJK5dnaxqwFzCr2HdsEo9ydxaqcS1oJzMvUw==}
+  '@tauri-apps/cli-linux-x64-musl@2.11.4':
+    resolution: {integrity: sha512-o9GyhYor/nc7xarmwDE3ka2szuW3uuZzXjHWh64Q8YX5AtSgxdQkFWzrY4O8KiGtVNvFBI14H3Q49Qj5TOIP/A==}
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [linux]
     libc: [musl]
 
-  '@tauri-apps/cli-win32-arm64-msvc@2.11.2':
-    resolution: {integrity: sha512-HeeZW80jU+gVTOEX4X/hC6NVSAdDVXajwP5fxIZ/3z9WvUC7qrudX2GMTilYq6Dg0e0sk0XgsAJD1hZ5wPBXUA==}
+  '@tauri-apps/cli-win32-arm64-msvc@2.11.4':
+    resolution: {integrity: sha512-ld5Ehb598m0VkYyylRPNeCFsBe/km0jxis6KgMpl3IGY6I/i1RwQXO05I1AsXUXO2WC6AvB/Lw4qTf/asiuEiQ==}
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [win32]
 
-  '@tauri-apps/cli-win32-ia32-msvc@2.11.2':
-    resolution: {integrity: sha512-YhjQNZcXfbkCLyazSv1nPnJ9iRFE1wm6kc51FDbU10/Dk09io+6PAGMLjkxnX2GdM0qMnDmTjstY8mTDVvtKeA==}
+  '@tauri-apps/cli-win32-ia32-msvc@2.11.4':
+    resolution: {integrity: sha512-12Hxi0XX/H5VFxO/bGgHkFWhml9VMgEOu9CidjeCeTNQ1l6fpUlbiGgSP7CLI3PFtW9/FfbeHieZ+kyWK5H7CA==}
     engines: {node: '>= 10'}
     cpu: [ia32]
     os: [win32]
 
-  '@tauri-apps/cli-win32-x64-msvc@2.11.2':
-    resolution: {integrity: sha512-d2JchlFIpZevZVReyqhQOekJmb1UH3rhZ5VX6sH3ty9ETE0TKQavpihvoScUXfKKpW6HZC0MrFGRU0ZtD+w3gA==}
+  '@tauri-apps/cli-win32-x64-msvc@2.11.4':
+    resolution: {integrity: sha512-+vDiqBIU5dMISg/wNvX3sF+ZHfgJGJ5T0AcO+EHNXV9GGAG+P5fzodlDXD3QdKCRgZxMoCm5PPvj3BqLNjBthw==}
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [win32]
 
-  '@tauri-apps/cli@2.11.2':
-    resolution: {integrity: sha512-bk3HemqvGRoy+5D/dVMUQHKMYLglD0jVnMm/0iGMH6ufZ+p8r14m6BpIixwij3PBvZdvORUp1YifTD8QxVZ1Nw==}
+  '@tauri-apps/cli@2.11.4':
+    resolution: {integrity: sha512-R8xGtMpwyetawSqm9kYOuMmEqkhUbvcUy8n0aNXIxollKBLESUu5f4Fx+64hgASYm1H+jSWq6jCW6zqTnH6hqQ==}
     engines: {node: '>= 10'}
     hasBin: true
 
@@ -666,9 +640,6 @@ packages:
   '@types/estree@1.0.9':
     resolution: {integrity: sha512-GhdPgy1el4/ImP05X05Uw4cw2/M93BCUmnEvWZNStlCzEKME4Fkk+YpoA5OiHNQmoS7Cafb8Xa3Pya8m1Qrzeg==}
 
-  '@types/jsesc@2.5.1':
-    resolution: {integrity: sha512-9VN+6yxLOPLOav+7PwjZbxiID2bVaeq0ED4qSQmdQTdjnXJSaCVKTR58t15oqH1H5t8Ng2ZX1SabJVoN9Q34bw==}
-
   '@types/json-schema@7.0.15':
     resolution: {integrity: sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==}
 
@@ -776,15 +747,6 @@ packages:
   '@volar/typescript@2.4.28':
     resolution: {integrity: sha512-Ja6yvWrbis2QtN4ClAKreeUZPVYMARDYZl9LMEv1iQ1QdepB6wn0jTRxA9MftYmYa4DQ4k/DaSZpFPUfxl8giw==}
 
-  '@vue-macros/common@3.1.2':
-    resolution: {integrity: sha512-h9t4ArDdniO9ekYHAD95t9AZcAbb19lEGK+26iAjUODOIJKmObDNBSe4+6ELQAA3vtYiFPPBtHh7+cQCKi3Dng==}
-    engines: {node: '>=20.19.0'}
-    peerDependencies:
-      vue: ^2.7.0 || ^3.2.25
-    peerDependenciesMeta:
-      vue:
-        optional: true
-
   '@vue/compiler-core@3.5.35':
     resolution: {integrity: sha512-BUmHaR1J+O+CKZ9uJucdVTEr1LHsdyvv7vG3eNRhK3CczEHeMd/LtsHAuD7PbrxvI2envCY2v7HI1vC1aBRzKw==}
 
@@ -800,21 +762,12 @@ packages:
   '@vue/devtools-api@7.7.9':
     resolution: {integrity: sha512-kIE8wvwlcZ6TJTbNeU2HQNtaxLx3a84aotTITUuL/4bzfPxzajGBOoqjMhwZJ8L9qFYDU/lAYMEEm11dnZOD6g==}
 
-  '@vue/devtools-api@8.1.2':
-    resolution: {integrity: sha512-vA0O112YqyDuNA1s7Yb2gCgToQ/OxOWiFDO5ThLCcDy0ldHnSd1dUTaSYhOldbqoNgumE4dxtGAoAaSUKUD1Zg==}
-
   '@vue/devtools-kit@7.7.9':
     resolution: {integrity: sha512-PyQ6odHSgiDVd4hnTP+aDk2X4gl2HmLDfiyEnn3/oV+ckFDuswRs4IbBT7vacMuGdwY/XemxBoh302ctbsptuA==}
 
-  '@vue/devtools-kit@8.1.2':
-    resolution: {integrity: sha512-f75/upc+GCyjXErpgPGz4582ujS0L/adAltGy+tqXMGUJpgAcfGr6CxnnhpZY8BHuMYt6KpbF8uaFrrQG66rGQ==}
-
   '@vue/devtools-shared@7.7.9':
     resolution: {integrity: sha512-iWAb0v2WYf0QWmxCGy0seZNDPdO3Sp5+u78ORnyeonS6MT4PC7VPrryX2BpMJrwlDeaZ6BD4vP4XKjK0SZqaeA==}
 
-  '@vue/devtools-shared@8.1.2':
-    resolution: {integrity: sha512-X9RyVFYAdkBe4IUf5v48TxBF/6QPmF8CmWrDAjXzfUHrgQ/HGfTC1A6TqgXqZ03ye66l3AD51BAGD69IvKM9sw==}
-
   '@vue/language-core@3.3.3':
     resolution: {integrity: sha512-X6p+7nfY7vVT6dQwUJ+v0Jfq/lwIfhL2jMi91dQ3ln4hnlGXlxsDu/FNkeyHYgvYtyQy18ZX76IZy7X4diDbiQ==}
 
@@ -869,14 +822,6 @@ packages:
     resolution: {integrity: sha512-Izi8RQcffqCeNVgFigKli1ssklIbpHnCYc6AknXGYoB6grJqyeby7jv12JUQgmTAnIDnbck1uxksT4dzN3PWBA==}
     engines: {node: '>=12'}
 
-  ast-kit@2.2.0:
-    resolution: {integrity: sha512-m1Q/RaVOnTp9JxPX+F+Zn7IcLYMzM8kZofDImfsKZd8MbR+ikdOzTeztStWqfrqIxZnYWryyI9ePm3NGjnZgGw==}
-    engines: {node: '>=20.19.0'}
-
-  ast-walker-scope@0.9.0:
-    resolution: {integrity: sha512-IJdzo2vLiElBxKzwS36VsCue/62d6IdWjnPB2v3nuPKeWGynp6FF/CYoLa5i/3jXH/z97ZDdsXz6abpgM6w07A==}
-    engines: {node: '>=20.19.0'}
-
   balanced-match@4.0.4:
     resolution: {integrity: sha512-BLrgEcRTwX2o6gGxGOCNyMvGSp35YofuYzw9h1IMTRmKqttAZZVU67bdb9Pr2vUHA8+j3i2tJfjO6C6+4myGTA==}
     engines: {node: 18 || 20 || >=22}
@@ -898,10 +843,6 @@ packages:
     resolution: {integrity: sha512-NUPRluOfOiTKBKvWPtSD4PhFvWCqOi0BGStNWs57X9js7XGTprSmFoz5F0tWhR4WPjNeR9jXqdC7/UpSJTnlRg==}
     engines: {node: '>=18'}
 
-  chokidar@5.0.0:
-    resolution: {integrity: sha512-TQMmc3w+5AxjpL8iIiwebF73dRDF4fBIieAqGn9RGCWaEVwQ6Fb2cGe31Yns0RRIzii5goJ1Y7xbMwo1TxMplw==}
-    engines: {node: '>= 20.19.0'}
-
   commander@14.0.3:
     resolution: {integrity: sha512-H+y0Jo/T1RZ9qPP4Eh1pkcQcLRglraJaSLoyOtHxu6AapkjWVCy2Sit1QQ4x3Dng8qDlSsZEet7g5Pq06MvTgw==}
     engines: {node: '>=20'}
@@ -1163,11 +1104,6 @@ packages:
       canvas:
         optional: true
 
-  jsesc@3.1.0:
-    resolution: {integrity: sha512-/sM3dO2FOzXjKQhJuo0Q173wf2KOo8t4I8vHy6lF9poUp7bKT0/NHE8fPX23PwfhnykfqnC2xRxOnVw5XuGIaA==}
-    engines: {node: '>=6'}
-    hasBin: true
-
   json-buffer@3.0.1:
     resolution: {integrity: sha512-4bV5BfR2mqfQTJm+V5tPPdf+ZpuhiIvTuAB5g8kcrXOZpTT/QwwVRWBywX1ozr6lEuPdbHxwaJlm9G6mI2sfSQ==}
 
@@ -1177,11 +1113,6 @@ packages:
   json-stable-stringify-without-jsonify@1.0.1:
     resolution: {integrity: sha512-Bdboy+l7tA3OGW6FjyFHWkP5LuByj1Tk33Ljyq0axyzdk9//JSi2u3fP1QSmd1KNwq6VOKYGlAu87CisVir6Pw==}
 
-  json5@2.2.3:
-    resolution: {integrity: sha512-XmOWe7eyHYH14cLdVPoyg+GOH3rYX++KpzrylJwSW98t3Nk+U8XOl8FWKOgwtzdb8lXGf6zYwDUzeHMWfxasyg==}
-    engines: {node: '>=6'}
-    hasBin: true
-
   keyv@4.5.4:
     resolution: {integrity: sha512-oxVHkHR/EJf2CNXnWxRLW6mg7JyCCUcG0DtEGmL2ctUo1PNTin1PUil+r/+4r5MpVgC/fn1kjsx7mjSujKqIpw==}
 
@@ -1278,10 +1209,6 @@ packages:
     resolution: {integrity: sha512-4pfM1Ff0x50o0tQwb5ucw/RzNyD0/YJME6IVcStalZuMWxdt3sR3huStTtxz4PUmvZfRguvDejasvQ2kifR11g==}
     engines: {node: 20 || >=22}
 
-  magic-string-ast@1.0.3:
-    resolution: {integrity: sha512-CvkkH1i81zl7mmb94DsRiFeG9V2fR2JeuK8yDgS8oiZSFa++wWLEgZ5ufEOyLHbvSbD1gTRKv9NdX69Rnvr9JA==}
-    engines: {node: '>=20.19.0'}
-
   magic-string@0.30.21:
     resolution: {integrity: sha512-vd2F4YUyEXKGcLHoq+TEyCjxueSeHnFxyyjNp80yg0XV4vUhnDer/lvvlqM/arB5bXQN5K2/3oinyCRyx8T2CQ==}
 
@@ -1308,8 +1235,8 @@ packages:
   muggle-string@0.4.1:
     resolution: {integrity: sha512-VNTrAak/KhO2i8dqqnqnAHOa3cYBwXEZe9h+D5h/1ZqFSTEFHdM65lR7RoIqq3tBBYavsOXV84NoHXZ0AkPyqQ==}
 
-  nanoid@3.3.12:
-    resolution: {integrity: sha512-ZB9RH/39qpq5Vu6Y+NmUaFhQR6pp+M2Xt76XBnEwDaGcVAqhlvxrl3B2bKS5D3NH3QR76v3aSrKaF/Kiy7lEtQ==}
+  nanoid@3.3.18:
+    resolution: {integrity: sha512-DTg4MJbGMWkfi6VZFdNt2/caMbQy4Ou+Op/hJQvGEWcnVfoA1QA+xzRKAzw9jD6+GVOOeYr/mIcuDSdug6F6+w==}
     engines: {node: ^10 || ^12 || ^13.7 || ^14 || >=15.0.1}
     hasBin: true
 
@@ -1368,9 +1295,6 @@ packages:
   perfect-debounce@1.0.0:
     resolution: {integrity: sha512-xCy9V055GLEqoFaHoC1SoLIaLmWctgCUaBaWxDZ7/Zx4CTyX7cJQLJOok/orfjZAh9kEYpjJa4d0KcJmCbctZA==}
 
-  perfect-debounce@2.1.0:
-    resolution: {integrity: sha512-LjgdTytVFXeUgtHZr9WYViYSM/g8MkcTPYDlPa3cDqMirHjKiSZPYd6DoL7pK8AJQr+uWkQvCjHNdiMqsrJs+g==}
-
   picocolors@1.1.1:
     resolution: {integrity: sha512-xceH2snhtb5M9liqDsmEw56le376mTZkEX/jEb/RxNFyegNul7eNslCXP9FDj/Lcu0X8KEyMceP2ntpaHrDEVA==}
 
@@ -1397,8 +1321,8 @@ packages:
     resolution: {integrity: sha512-7qASPzhKF2l2KLboRZux8CCTRMdGiV08vWmyKzPz22qZ7ZjQBOeY7rNzNoCLSUiftJ7HUq0GERHmxw/t0dCdMw==}
     engines: {node: '>=4'}
 
-  postcss@8.5.15:
-    resolution: {integrity: sha512-FfR8sjd4em2T6fb3I2MwAJU7HWVMr9zba+enmQeeWFfCbm+UOC/0X4DS8XtpUTMwWMGbjKYP7xjfNekzyGmB3A==}
+  postcss@8.5.28:
+    resolution: {integrity: sha512-RRuzqDtt5Y9h3quz5hWhK+TPnsmVs6WwSU6LkJMeY4HstUEDuYTG8UJSdawMRzmzAtV+KEoG8N3Qg2qLy5vM/A==}
     engines: {node: ^10 || ^12 || >=14}
 
   prelude-ls@1.2.1:
@@ -1420,10 +1344,6 @@ packages:
   quansync@0.2.11:
     resolution: {integrity: sha512-AifT7QEbW9Nri4tAwR5M/uzpBuqfZf+zwaEM/QkzEjj7NBuFD2rBuy0K3dE+8wltbezDV7JMA0WfnCPYRSYbXA==}
 
-  readdirp@5.0.0:
-    resolution: {integrity: sha512-9u/XQ1pvrQtYyMpZe7DXKv2p5CNvyVwzUB6uhLAnQwHMSgKMBR62lc7AHljaeteeHXn11XTAaLLUVZYVZyuRBQ==}
-    engines: {node: '>= 20.19.0'}
-
   require-from-string@2.0.2:
     resolution: {integrity: sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==}
     engines: {node: '>=0.10.0'}
@@ -1440,9 +1360,6 @@ packages:
     resolution: {integrity: sha512-xAg7SOnEhrm5zI3puOOKyy1OMcMlIJZYNJY7xLBwSze0UjhPLnWfj2GF2EpT0jmzaJKIWKHLsaSSajf35bcYnA==}
     engines: {node: '>=v12.22.7'}
 
-  scule@1.3.0:
-    resolution: {integrity: sha512-6FtHJEvt+pVMIB9IBY+IcCJ6Z5f1iQnytgyfKMhDKgmzYG+TeH/wx1y3l27rshSbLiSanrR9ffZDrEsmjlQF2g==}
-
   semver@7.8.2:
     resolution: {integrity: sha512-c8jsqUZm3omBOI66G90z1Dyw5z622G8oLG+omfsHBJf3CWQTlOcwOjvOG6wtiNfW6anKm/eA39LMwMtMez2TiQ==}
     engines: {node: '>=10'}
@@ -1584,18 +1501,10 @@ packages:
       webpack:
         optional: true
 
-  unplugin-utils@0.3.1:
-    resolution: {integrity: sha512-5lWVjgi6vuHhJ526bI4nlCOmkCIF3nnfXkCMDeMJrtdvxTs6ZFCM8oNufGTsDbKv/tJ/xj8RpvXjRuPBZJuJog==}
-    engines: {node: '>=20.19.0'}
-
   unplugin@2.3.11:
     resolution: {integrity: sha512-5uKD0nqiYVzlmCRs01Fhs2BdkEgBS3SAVP6ndrBsuK42iC2+JHyxM05Rm9G8+5mkmRtzMZGY8Ct5+mliZxU/Ww==}
     engines: {node: '>=18.12.0'}
 
-  unplugin@3.0.0:
-    resolution: {integrity: sha512-0Mqk3AT2TZCXWKdcoaufeXNukv2mTrEZExeXlHIOZXdqYoHHr4n51pymnwV8x2BOVxwXbK2HLlI7usrqMpycdg==}
-    engines: {node: ^20.19.0 || >=22.12.0}
-
   uri-js@4.4.1:
     resolution: {integrity: sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==}
 
@@ -1712,24 +1621,6 @@ packages:
     peerDependencies:
       eslint: ^8.57.0 || ^9.0.0 || ^10.0.0
 
-  vue-router@5.1.0:
-    resolution: {integrity: sha512-HAbiLzLEHQwxPgvsbOJDAwtavszEgLwri6XfyrsPECIFez8+59xc9LofWVdc/HEaSRT822lJ8H9Ns38VVond5g==}
-    peerDependencies:
-      '@pinia/colada': '>=0.21.2'
-      '@vue/compiler-sfc': ^3.5.34
-      pinia: ^3.0.4
-      vite: ^7.0.0 || ^8.0.0
-      vue: ^3.5.34
-    peerDependenciesMeta:
-      '@pinia/colada':
-        optional: true
-      '@vue/compiler-sfc':
-        optional: true
-      pinia:
-        optional: true
-      vite:
-        optional: true
-
   vue-tsc@3.3.3:
     resolution: {integrity: sha512-SWUEG7YRUeDJHT7Xsuhf02elYX2gxPzzAII7OxDAh4KNOr4QHQ0Lls0YfnaO5GNd560CwVa2HTfdqmA5MqvRqQ==}
     hasBin: true
@@ -1818,41 +1709,19 @@ snapshots:
       is-potential-custom-element-name: 1.0.1
       lru-cache: 11.5.2
 
-  '@babel/generator@8.0.0-rc.6':
-    dependencies:
-      '@babel/parser': 8.0.0-rc.6
-      '@babel/types': 8.0.0-rc.6
-      '@jridgewell/gen-mapping': 0.3.13
-      '@jridgewell/trace-mapping': 0.3.31
-      '@types/jsesc': 2.5.1
-      jsesc: 3.1.0
-
   '@babel/helper-string-parser@7.29.7': {}
 
-  '@babel/helper-string-parser@8.0.0-rc.6': {}
-
   '@babel/helper-validator-identifier@7.29.7': {}
 
-  '@babel/helper-validator-identifier@8.0.0-rc.6': {}
-
   '@babel/parser@7.29.7':
     dependencies:
       '@babel/types': 7.29.7
 
-  '@babel/parser@8.0.0-rc.6':
-    dependencies:
-      '@babel/types': 8.0.0-rc.6
-
   '@babel/types@7.29.7':
     dependencies:
       '@babel/helper-string-parser': 7.29.7
       '@babel/helper-validator-identifier': 7.29.7
 
-  '@babel/types@8.0.0-rc.6':
-    dependencies:
-      '@babel/helper-string-parser': 8.0.0-rc.6
-      '@babel/helper-validator-identifier': 8.0.0-rc.6
-
   '@bramus/specificity@2.4.2':
     dependencies:
       css-tree: 3.2.1
@@ -2044,54 +1913,54 @@ snapshots:
 
   '@standard-schema/spec@1.1.0': {}
 
-  '@tauri-apps/api@2.11.0': {}
+  '@tauri-apps/api@2.11.1': {}
 
-  '@tauri-apps/cli-darwin-arm64@2.11.2':
+  '@tauri-apps/cli-darwin-arm64@2.11.4':
     optional: true
 
-  '@tauri-apps/cli-darwin-x64@2.11.2':
+  '@tauri-apps/cli-darwin-x64@2.11.4':
     optional: true
 
-  '@tauri-apps/cli-linux-arm-gnueabihf@2.11.2':
+  '@tauri-apps/cli-linux-arm-gnueabihf@2.11.4':
     optional: true
 
-  '@tauri-apps/cli-linux-arm64-gnu@2.11.2':
+  '@tauri-apps/cli-linux-arm64-gnu@2.11.4':
     optional: true
 
-  '@tauri-apps/cli-linux-arm64-musl@2.11.2':
+  '@tauri-apps/cli-linux-arm64-musl@2.11.4':
     optional: true
 
-  '@tauri-apps/cli-linux-riscv64-gnu@2.11.2':
+  '@tauri-apps/cli-linux-riscv64-gnu@2.11.4':
     optional: true
 
-  '@tauri-apps/cli-linux-x64-gnu@2.11.2':
+  '@tauri-apps/cli-linux-x64-gnu@2.11.4':
     optional: true
 
-  '@tauri-apps/cli-linux-x64-musl@2.11.2':
+  '@tauri-apps/cli-linux-x64-musl@2.11.4':
     optional: true
 
-  '@tauri-apps/cli-win32-arm64-msvc@2.11.2':
+  '@tauri-apps/cli-win32-arm64-msvc@2.11.4':
     optional: true
 
-  '@tauri-apps/cli-win32-ia32-msvc@2.11.2':
+  '@tauri-apps/cli-win32-ia32-msvc@2.11.4':
     optional: true
 
-  '@tauri-apps/cli-win32-x64-msvc@2.11.2':
+  '@tauri-apps/cli-win32-x64-msvc@2.11.4':
     optional: true
 
-  '@tauri-apps/cli@2.11.2':
+  '@tauri-apps/cli@2.11.4':
     optionalDependencies:
-      '@tauri-apps/cli-darwin-arm64': 2.11.2
-      '@tauri-apps/cli-darwin-x64': 2.11.2
-      '@tauri-apps/cli-linux-arm-gnueabihf': 2.11.2
-      '@tauri-apps/cli-linux-arm64-gnu': 2.11.2
-      '@tauri-apps/cli-linux-arm64-musl': 2.11.2
-      '@tauri-apps/cli-linux-riscv64-gnu': 2.11.2
-      '@tauri-apps/cli-linux-x64-gnu': 2.11.2
-      '@tauri-apps/cli-linux-x64-musl': 2.11.2
-      '@tauri-apps/cli-win32-arm64-msvc': 2.11.2
-      '@tauri-apps/cli-win32-ia32-msvc': 2.11.2
-      '@tauri-apps/cli-win32-x64-msvc': 2.11.2
+      '@tauri-apps/cli-darwin-arm64': 2.11.4
+      '@tauri-apps/cli-darwin-x64': 2.11.4
+      '@tauri-apps/cli-linux-arm-gnueabihf': 2.11.4
+      '@tauri-apps/cli-linux-arm64-gnu': 2.11.4
+      '@tauri-apps/cli-linux-arm64-musl': 2.11.4
+      '@tauri-apps/cli-linux-riscv64-gnu': 2.11.4
+      '@tauri-apps/cli-linux-x64-gnu': 2.11.4
+      '@tauri-apps/cli-linux-x64-musl': 2.11.4
+      '@tauri-apps/cli-win32-arm64-msvc': 2.11.4
+      '@tauri-apps/cli-win32-ia32-msvc': 2.11.4
+      '@tauri-apps/cli-win32-x64-msvc': 2.11.4
 
   '@turbo/darwin-64@2.9.16':
     optional: true
@@ -2127,8 +1996,6 @@ snapshots:
 
   '@types/estree@1.0.9': {}
 
-  '@types/jsesc@2.5.1': {}
-
   '@types/json-schema@7.0.15': {}
 
   '@typescript-eslint/eslint-plugin@8.60.1(@typescript-eslint/parser@8.60.1(eslint@10.4.1)(typescript@6.0.3))(eslint@10.4.1)(typescript@6.0.3)':
@@ -2281,16 +2148,6 @@ snapshots:
       path-browserify: 1.0.1
       vscode-uri: 3.1.0
 
-  '@vue-macros/common@3.1.2(vue@3.5.35(typescript@6.0.3))':
-    dependencies:
-      '@vue/compiler-sfc': 3.5.35
-      ast-kit: 2.2.0
-      local-pkg: 1.2.1
-      magic-string-ast: 1.0.3
-      unplugin-utils: 0.3.1
-    optionalDependencies:
-      vue: 3.5.35(typescript@6.0.3)
-
   '@vue/compiler-core@3.5.35':
     dependencies:
       '@babel/parser': 7.29.7
@@ -2313,7 +2170,7 @@ snapshots:
       '@vue/shared': 3.5.35
       estree-walker: 2.0.2
       magic-string: 0.30.21
-      postcss: 8.5.15
+      postcss: 8.5.28
       source-map-js: 1.2.1
 
   '@vue/compiler-ssr@3.5.35':
@@ -2325,10 +2182,6 @@ snapshots:
     dependencies:
       '@vue/devtools-kit': 7.7.9
 
-  '@vue/devtools-api@8.1.2':
-    dependencies:
-      '@vue/devtools-kit': 8.1.2
-
   '@vue/devtools-kit@7.7.9':
     dependencies:
       '@vue/devtools-shared': 7.7.9
@@ -2339,19 +2192,10 @@ snapshots:
       speakingurl: 14.0.1
       superjson: 2.2.6
 
-  '@vue/devtools-kit@8.1.2':
-    dependencies:
-      '@vue/devtools-shared': 8.1.2
-      birpc: 2.9.0
-      hookable: 5.5.3
-      perfect-debounce: 2.1.0
-
   '@vue/devtools-shared@7.7.9':
     dependencies:
       rfdc: 1.4.1
 
-  '@vue/devtools-shared@8.1.2': {}
-
   '@vue/language-core@3.3.3':
     dependencies:
       '@volar/language-core': 2.4.28
@@ -2414,17 +2258,6 @@ snapshots:
 
   assertion-error@2.0.1: {}
 
-  ast-kit@2.2.0:
-    dependencies:
-      '@babel/parser': 7.29.7
-      pathe: 2.0.3
-
-  ast-walker-scope@0.9.0:
-    dependencies:
-      '@babel/parser': 7.29.7
-      '@babel/types': 7.29.7
-      ast-kit: 2.2.0
-
   balanced-match@4.0.4: {}
 
   bidi-js@1.0.3:
@@ -2441,10 +2274,6 @@ snapshots:
 
   chai@6.2.2: {}
 
-  chokidar@5.0.0:
-    dependencies:
-      readdirp: 5.0.0
-
   commander@14.0.3: {}
 
   compare-versions@6.1.1: {}
@@ -2714,16 +2543,12 @@ snapshots:
     transitivePeerDependencies:
       - '@noble/hashes'
 
-  jsesc@3.1.0: {}
-
   json-buffer@3.0.1: {}
 
   json-schema-traverse@0.4.1: {}
 
   json-stable-stringify-without-jsonify@1.0.1: {}
 
-  json5@2.2.3: {}
-
   keyv@4.5.4:
     dependencies:
       json-buffer: 3.0.1
@@ -2796,10 +2621,6 @@ snapshots:
 
   lru-cache@11.5.2: {}
 
-  magic-string-ast@1.0.3:
-    dependencies:
-      magic-string: 0.30.21
-
   magic-string@0.30.21:
     dependencies:
       '@jridgewell/sourcemap-codec': 1.5.5
@@ -2825,7 +2646,7 @@ snapshots:
 
   muggle-string@0.4.1: {}
 
-  nanoid@3.3.12: {}
+  nanoid@3.3.18: {}
 
   natural-compare@1.4.0: {}
 
@@ -2877,8 +2698,6 @@ snapshots:
 
   perfect-debounce@1.0.0: {}
 
-  perfect-debounce@2.1.0: {}
-
   picocolors@1.1.1: {}
 
   picomatch@4.0.4: {}
@@ -2907,9 +2726,9 @@ snapshots:
       cssesc: 3.0.0
       util-deprecate: 1.0.2
 
-  postcss@8.5.15:
+  postcss@8.5.28:
     dependencies:
-      nanoid: 3.3.12
+      nanoid: 3.3.18
       picocolors: 1.1.1
       source-map-js: 1.2.1
 
@@ -2923,8 +2742,6 @@ snapshots:
 
   quansync@0.2.11: {}
 
-  readdirp@5.0.0: {}
-
   require-from-string@2.0.2: {}
 
   rfdc@1.4.1: {}
@@ -2954,8 +2771,6 @@ snapshots:
     dependencies:
       xmlchars: 2.2.0
 
-  scule@1.3.0: {}
-
   semver@7.8.2: {}
 
   semver@7.8.5: {}
@@ -3063,11 +2878,6 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  unplugin-utils@0.3.1:
-    dependencies:
-      pathe: 2.0.3
-      picomatch: 4.0.4
-
   unplugin@2.3.11:
     dependencies:
       '@jridgewell/remapping': 2.3.5
@@ -3075,12 +2885,6 @@ snapshots:
       picomatch: 4.0.4
       webpack-virtual-modules: 0.6.2
 
-  unplugin@3.0.0:
-    dependencies:
-      '@jridgewell/remapping': 2.3.5
-      picomatch: 4.0.4
-      webpack-virtual-modules: 0.6.2
-
   uri-js@4.4.1:
     dependencies:
       punycode: 2.3.1
@@ -3105,7 +2909,7 @@ snapshots:
     dependencies:
       lightningcss: 1.32.0
       picomatch: 4.0.4
-      postcss: 8.5.15
+      postcss: 8.5.28
       rolldown: 1.0.3
       tinyglobby: 0.2.17
     optionalDependencies:
@@ -3155,31 +2959,6 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  vue-router@5.1.0(@vue/compiler-sfc@3.5.35)(pinia@3.0.4(typescript@6.0.3)(vue@3.5.35(typescript@6.0.3)))(vite@8.0.16(yaml@2.9.0))(vue@3.5.35(typescript@6.0.3)):
-    dependencies:
-      '@babel/generator': 8.0.0-rc.6
-      '@vue-macros/common': 3.1.2(vue@3.5.35(typescript@6.0.3))
-      '@vue/devtools-api': 8.1.2
-      ast-walker-scope: 0.9.0
-      chokidar: 5.0.0
-      json5: 2.2.3
-      local-pkg: 1.2.1
-      magic-string: 0.30.21
-      mlly: 1.8.2
-      muggle-string: 0.4.1
-      pathe: 2.0.3
-      picomatch: 4.0.4
-      scule: 1.3.0
-      tinyglobby: 0.2.17
-      unplugin: 3.0.0
-      unplugin-utils: 0.3.1
-      vue: 3.5.35(typescript@6.0.3)
-      yaml: 2.9.0
-    optionalDependencies:
-      '@vue/compiler-sfc': 3.5.35
-      pinia: 3.0.4(typescript@6.0.3)(vue@3.5.35(typescript@6.0.3))
-      vite: 8.0.16(yaml@2.9.0)
-
   vue-tsc@3.3.3(typescript@6.0.3):
     dependencies:
       '@volar/typescript': 2.4.28
@@ -3239,6 +3018,7 @@ snapshots:
 
   xmlchars@2.2.0: {}
 
-  yaml@2.9.0: {}
+  yaml@2.9.0:
+    optional: true
 
   yocto-queue@0.1.0: {}
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index 0bce508..5d2fa6c 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -9,7 +9,5 @@ onlyBuiltDependencies:
   - esbuild
 
 overrides:
-  "electron@<38.8.6": ">=38.8.6"
-  "electron@<39.8.1": ">=39.8.1"
-  "electron@>=33.0.0-alpha.1 <39.8.5": ">=39.8.5"
-  "electron@<39.8.5": ">=39.8.5"
+  "postcss@<=8.5.22": ">=8.5.23"
+  "nanoid@<3.3.18": ">=3.3.18"

From 144112ecc21988b62f15fbbb6abf2962e80a20be Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 21:06:49 -0300
Subject: [PATCH 31/43] chore(release): align project version metadata

---
 CHANGELOG.md                      |  9 +++++++++
 README.md                         |  7 ++++---
 apps/web/package.json             |  2 +-
 package.json                      |  3 ++-
 packages/core/package.json        |  2 +-
 packages/file-io/package.json     |  2 +-
 packages/jff/package.json         |  2 +-
 packages/simulator/package.json   |  2 +-
 packages/ui/package.json          |  2 +-
 scripts/check-release-version.mjs | 22 ++++++++++++++++++++++
 10 files changed, 43 insertions(+), 10 deletions(-)
 create mode 100644 CHANGELOG.md
 create mode 100644 scripts/check-release-version.mjs

diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..db0f408
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,9 @@
+# Changelog
+
+## 0.2.0 - 2026-09-06
+
+- Added strict JFLAP automata import/export validation and vendor-backed conformance fixtures.
+- Corrected DFA, NFA, PDA, and single-tape Turing-machine execution semantics and outcomes.
+- Added protected save/recovery workflows, structural undo, complete replay traces, and batch testing.
+- Added pointer-safe editing, a keyboard-accessible semantic editor, responsive high-DPI rendering, and full-diagram PNG export.
+- Added Windows and macOS release automation with quality, signing, notarization, and checksum gates.
diff --git a/README.md b/README.md
index 97ce449..9f007e2 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ Compatibility is under active development. See the [JFLAP 7.1 compatibility cont
 ### Prerequisites
 
 - [Node.js](https://nodejs.org/) >= 22
-- [pnpm](https://pnpm.io/) >= 10
+- [pnpm](https://pnpm.io/) 11.x (the repository pins 11.5.2)
 - [Rust](https://www.rust-lang.org/tools/install) with Cargo for native desktop builds
 
 ### Setup
@@ -106,8 +106,9 @@ The generated `.msi`, `.exe`, `.dmg`, and `.app.tar.gz` files are attached to
 the GitHub Release for that tag. The workflow can also be run manually from
 GitHub Actions with a `release_tag` value.
 
-The macOS installer is currently unsigned. Users may need to approve it manually
-from macOS security settings until Apple Developer ID signing is configured.
+Stable desktop releases require Windows signing and Apple Developer ID signing/notarization
+credentials in GitHub Actions. The release workflow refuses to publish stable installers when
+those credentials are unavailable.
 
 ## Project Structure
 
diff --git a/apps/web/package.json b/apps/web/package.json
index 68d593b..88749dc 100644
--- a/apps/web/package.json
+++ b/apps/web/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jauto/web",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "private": true,
   "type": "module",
   "scripts": {
diff --git a/package.json b/package.json
index 16a9e52..bd413e7 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,8 @@
     "test": "turbo run test",
     "lint": "turbo run lint",
     "typecheck": "turbo run typecheck",
-    "format": "prettier --write ."
+    "format": "prettier --write .",
+    "check:release-version": "node scripts/check-release-version.mjs"
   },
   "devDependencies": {
     "@eslint/js": "^10.0.1",
diff --git a/packages/core/package.json b/packages/core/package.json
index 22b405a..46b2c3d 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jauto/core",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "private": true,
   "type": "module",
   "main": "./dist/index.js",
diff --git a/packages/file-io/package.json b/packages/file-io/package.json
index 49de794..b964da1 100644
--- a/packages/file-io/package.json
+++ b/packages/file-io/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jauto/file-io",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "private": true,
   "type": "module",
   "main": "./dist/index.js",
diff --git a/packages/jff/package.json b/packages/jff/package.json
index 86cf986..4db548a 100644
--- a/packages/jff/package.json
+++ b/packages/jff/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jauto/jff",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "private": true,
   "type": "module",
   "main": "./dist/index.js",
diff --git a/packages/simulator/package.json b/packages/simulator/package.json
index 9801160..227dd19 100644
--- a/packages/simulator/package.json
+++ b/packages/simulator/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jauto/simulator",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "private": true,
   "type": "module",
   "main": "./dist/index.js",
diff --git a/packages/ui/package.json b/packages/ui/package.json
index f3af6e7..0ce2971 100644
--- a/packages/ui/package.json
+++ b/packages/ui/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jauto/ui",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "private": true,
   "type": "module",
   "main": "./src/index.ts",
diff --git a/scripts/check-release-version.mjs b/scripts/check-release-version.mjs
new file mode 100644
index 0000000..9df9ba8
--- /dev/null
+++ b/scripts/check-release-version.mjs
@@ -0,0 +1,22 @@
+import { readFileSync } from 'node:fs';
+
+const expected = process.argv[2]?.replace(/^v/, '') ?? JSON.parse(readFileSync('package.json', 'utf8')).version;
+const jsonFiles = [
+  'package.json',
+  'packages/core/package.json', 'packages/file-io/package.json', 'packages/jff/package.json',
+  'packages/simulator/package.json', 'packages/ui/package.json',
+  'apps/web/package.json', 'apps/desktop/package.json', 'apps/desktop/src-tauri/tauri.conf.json',
+];
+const mismatches = [];
+for (const file of jsonFiles) {
+  const version = JSON.parse(readFileSync(file, 'utf8')).version;
+  if (version !== expected) mismatches.push(`${file}: ${version ?? 'missing'}`);
+}
+const cargo = readFileSync('apps/desktop/src-tauri/Cargo.toml', 'utf8');
+const cargoVersion = /^version\s*=\s*"([^"]+)"/m.exec(cargo)?.[1];
+if (cargoVersion !== expected) mismatches.push(`apps/desktop/src-tauri/Cargo.toml: ${cargoVersion ?? 'missing'}`);
+if (mismatches.length) {
+  console.error(`Expected every release version to be ${expected}:\n${mismatches.join('\n')}`);
+  process.exit(1);
+}
+console.log(`Release versions agree at ${expected}.`);

From e01075ed6001b71bf8dc59f12537f958a64dd5ab Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 21:08:46 -0300
Subject: [PATCH 32/43] ci(release): gate signed GitHub desktop publishing

---
 .github/release-notes/desktop.md      |   4 +-
 .github/workflows/checks.yml          |  21 +++
 .github/workflows/desktop-release.yml | 212 +++++++++++++++++---------
 README.md                             |   5 +-
 docs/RELEASING.md                     |  26 ++++
 5 files changed, 192 insertions(+), 76 deletions(-)
 create mode 100644 docs/RELEASING.md

diff --git a/.github/release-notes/desktop.md b/.github/release-notes/desktop.md
index 4f969e8..c06eca2 100644
--- a/.github/release-notes/desktop.md
+++ b/.github/release-notes/desktop.md
@@ -1,8 +1,8 @@
-Native desktop builds for Jauto.
+Signed native desktop builds for Jauto. SHA-256 checksums are included in `SHA256SUMS.txt`.
 
 Download the installer for your operating system from the assets below:
 
 - Windows: use the `.msi` or `.exe` installer.
 - macOS: use the `.dmg` installer.
 
-The macOS build is unsigned for now, so macOS may ask you to confirm that you want to open it.
+Windows installers are Authenticode-signed. The macOS DMG is signed with a Developer ID certificate, notarized by Apple, and stapled before publication.
diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index f46166f..95ef53f 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -8,6 +8,10 @@ on:
 permissions:
   contents: read
 
+concurrency:
+  group: checks-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   check:
     runs-on: ubuntu-latest
@@ -19,8 +23,25 @@ jobs:
           node-version: 22
           cache: pnpm
       - run: pnpm install --frozen-lockfile
+      - run: pnpm audit --prod --audit-level moderate
+      - run: pnpm check:release-version
       - run: pnpm lint
       - run: pnpm test
       - run: pnpm typecheck
       - run: pnpm --filter @jauto/web build
       - run: pnpm --filter @jauto/desktop build:frontend
+
+  native-check:
+    name: Native check (${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [windows-latest, macos-latest]
+    steps:
+      - uses: actions/checkout@v6
+      - uses: dtolnay/rust-toolchain@stable
+        with: { components: rustfmt }
+      - uses: swatinem/rust-cache@v2
+        with: { workspaces: apps/desktop/src-tauri }
+      - run: cargo fmt --manifest-path apps/desktop/src-tauri/Cargo.toml --check
+      - run: cargo check --manifest-path apps/desktop/src-tauri/Cargo.toml
diff --git a/.github/workflows/desktop-release.yml b/.github/workflows/desktop-release.yml
index 0852b79..a1b118e 100644
--- a/.github/workflows/desktop-release.yml
+++ b/.github/workflows/desktop-release.yml
@@ -1,119 +1,185 @@
-name: Desktop native releases
+name: Signed desktop release
 
 on:
   push:
-    tags:
-      - 'v*'
-      - 'Beta'
+    tags: ['v*']
   workflow_dispatch:
     inputs:
       release_tag:
-        description: 'GitHub Release tag to create or update, for example v0.2.0'
+        description: 'Version tag matching repository metadata, for example v0.2.0'
         required: true
         default: 'v0.2.0'
 
 permissions:
   contents: write
 
+concurrency:
+  group: desktop-release-${{ github.ref }}-${{ inputs.release_tag }}
+  cancel-in-progress: false
+
 jobs:
+  validate:
+    name: Validate release metadata and credentials
+    runs-on: ubuntu-latest
+    env:
+      RELEASE_TAG: ${{ github.event_name == 'workflow_dispatch' && inputs.release_tag || github.ref_name }}
+      WINDOWS_CERTIFICATE: ${{ secrets.WINDOWS_CERTIFICATE }}
+      WINDOWS_CERTIFICATE_PASSWORD: ${{ secrets.WINDOWS_CERTIFICATE_PASSWORD }}
+      APPLE_CERTIFICATE: ${{ secrets.APPLE_CERTIFICATE }}
+      APPLE_CERTIFICATE_PASSWORD: ${{ secrets.APPLE_CERTIFICATE_PASSWORD }}
+      APPLE_SIGNING_IDENTITY: ${{ secrets.APPLE_SIGNING_IDENTITY }}
+      APPLE_ID: ${{ secrets.APPLE_ID }}
+      APPLE_PASSWORD: ${{ secrets.APPLE_PASSWORD }}
+      APPLE_TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-node@v6
+        with: { node-version: 22 }
+      - name: Match tag to every project version
+        run: node scripts/check-release-version.mjs "$RELEASE_TAG"
+      - name: Require signing and notarization credentials
+        shell: bash
+        run: |
+          set -euo pipefail
+          required=(WINDOWS_CERTIFICATE WINDOWS_CERTIFICATE_PASSWORD APPLE_CERTIFICATE APPLE_CERTIFICATE_PASSWORD APPLE_SIGNING_IDENTITY APPLE_ID APPLE_PASSWORD APPLE_TEAM_ID)
+          for name in "${required[@]}"; do
+            if [ -z "${!name:-}" ]; then echo "Missing required release secret: $name"; exit 1; fi
+          done
+
+  quality:
+    name: Release quality gate
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: pnpm/action-setup@v6
+      - uses: actions/setup-node@v6
+        with:
+          node-version: 22
+          cache: pnpm
+      - run: pnpm install --frozen-lockfile
+      - run: pnpm audit --prod --audit-level moderate
+      - run: pnpm lint
+      - run: pnpm test
+      - run: pnpm typecheck
+      - run: pnpm --filter @jauto/web build
+      - run: pnpm --filter @jauto/desktop build:frontend
+
   build:
-    name: Build ${{ matrix.label }}
+    name: Build and sign ${{ matrix.label }}
+    needs: [validate, quality]
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
         include:
-          - label: windows-x64
-            os: windows-latest
-            args: ''
-          - label: macos-universal
-            os: macos-latest
-            args: '--target universal-apple-darwin'
-
+          - { label: windows-x64, os: windows-latest }
+          - { label: macos-universal, os: macos-latest }
+    env:
+      APPLE_CERTIFICATE: ${{ secrets.APPLE_CERTIFICATE }}
+      APPLE_CERTIFICATE_PASSWORD: ${{ secrets.APPLE_CERTIFICATE_PASSWORD }}
+      APPLE_SIGNING_IDENTITY: ${{ secrets.APPLE_SIGNING_IDENTITY }}
+      APPLE_ID: ${{ secrets.APPLE_ID }}
+      APPLE_PASSWORD: ${{ secrets.APPLE_PASSWORD }}
+      APPLE_TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
+      WINDOWS_CERTIFICATE: ${{ secrets.WINDOWS_CERTIFICATE }}
+      WINDOWS_CERTIFICATE_PASSWORD: ${{ secrets.WINDOWS_CERTIFICATE_PASSWORD }}
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v6
-
-      - name: Enable pnpm
-        uses: pnpm/action-setup@v6
-
-      - name: Set up Node.js
-        uses: actions/setup-node@v6
+      - uses: actions/checkout@v6
+      - uses: pnpm/action-setup@v6
+      - uses: actions/setup-node@v6
         with:
           node-version: 22
           cache: pnpm
-          cache-dependency-path: pnpm-lock.yaml
-
-      - name: Set up Rust
-        uses: dtolnay/rust-toolchain@stable
-
-      - name: Add macOS universal targets
-        if: runner.os == 'macOS'
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: swatinem/rust-cache@v2
+        with: { workspaces: apps/desktop/src-tauri }
+      - if: runner.os == 'macOS'
         run: rustup target add aarch64-apple-darwin x86_64-apple-darwin
-
-      - name: Install dependencies
-        run: pnpm install --frozen-lockfile
-
-      - name: Build native desktop app
-        # The renderer imports workspace packages through their dist exports.
-        # pnpm test builds these dependencies through Turbo before packaging.
-        working-directory: .
+      - run: pnpm install --frozen-lockfile
+      - name: Import Windows signing certificate
+        if: runner.os == 'Windows'
+        shell: pwsh
         run: |
-          pnpm lint
-          pnpm test
-          pnpm typecheck
-
-      - name: Package native desktop app
+          $certificatePath = Join-Path $env:RUNNER_TEMP 'jauto-release.pfx'
+          [IO.File]::WriteAllBytes($certificatePath, [Convert]::FromBase64String($env:WINDOWS_CERTIFICATE))
+          $password = ConvertTo-SecureString $env:WINDOWS_CERTIFICATE_PASSWORD -AsPlainText -Force
+          $certificate = Import-PfxCertificate -FilePath $certificatePath -CertStoreLocation Cert:\CurrentUser\My -Password $password
+          $config = @{ bundle = @{ windows = @{ certificateThumbprint = $certificate.Thumbprint; digestAlgorithm = 'sha256'; timestampUrl = 'http://timestamp.digicert.com' } } }
+          $config | ConvertTo-Json -Depth 5 | Set-Content apps/desktop/src-tauri/tauri.release.conf.json
+      - name: Import Apple Developer ID certificate
+        if: runner.os == 'macOS'
+        shell: bash
+        run: |
+          set -euo pipefail
+          certificate_path="$RUNNER_TEMP/jauto-release.p12"
+          keychain_path="$RUNNER_TEMP/jauto-signing.keychain-db"
+          echo "$APPLE_CERTIFICATE" | base64 --decode > "$certificate_path"
+          security create-keychain -p "$APPLE_CERTIFICATE_PASSWORD" "$keychain_path"
+          security set-keychain-settings -lut 21600 "$keychain_path"
+          security unlock-keychain -p "$APPLE_CERTIFICATE_PASSWORD" "$keychain_path"
+          security import "$certificate_path" -P "$APPLE_CERTIFICATE_PASSWORD" -A -t cert -f pkcs12 -k "$keychain_path"
+          security list-keychain -d user -s "$keychain_path"
+          security set-key-partition-list -S apple-tool:,apple:,codesign: -s -k "$APPLE_CERTIFICATE_PASSWORD" "$keychain_path"
+      - name: Build signed Windows installers
+        if: runner.os == 'Windows'
         working-directory: apps/desktop
-        run: pnpm tauri build ${{ matrix.args }}
-
-      - name: Upload native installers
-        uses: actions/upload-artifact@v7
+        run: pnpm tauri build --config src-tauri/tauri.release.conf.json
+      - name: Build signed and notarized universal macOS installer
+        if: runner.os == 'macOS'
+        working-directory: apps/desktop
+        run: pnpm tauri build --target universal-apple-darwin
+      - name: Verify Windows signatures and installers
+        if: runner.os == 'Windows'
+        shell: pwsh
+        run: |
+          $files = Get-ChildItem apps/desktop/src-tauri/target/release/bundle -Recurse -Include *.exe,*.msi
+          if (-not $files) { throw 'No Windows installers were produced.' }
+          foreach ($file in $files) {
+            $signature = Get-AuthenticodeSignature $file.FullName
+            if ($signature.Status -ne 'Valid') { throw "Invalid signature on $($file.Name): $($signature.Status)" }
+          }
+      - name: Verify macOS signature and notarization
+        if: runner.os == 'macOS'
+        shell: bash
+        run: |
+          set -euo pipefail
+          app=$(find apps/desktop/src-tauri/target/universal-apple-darwin/release/bundle -name '*.app' -type d | head -1)
+          dmg=$(find apps/desktop/src-tauri/target/universal-apple-darwin/release/bundle -name '*.dmg' -type f | head -1)
+          test -n "$app" && test -n "$dmg"
+          codesign --verify --deep --strict --verbose=2 "$app"
+          xcrun stapler validate "$dmg"
+      - uses: actions/upload-artifact@v7
         with:
           name: jauto-${{ matrix.label }}
           if-no-files-found: error
           path: |
             apps/desktop/src-tauri/target/release/bundle/**/*.msi
             apps/desktop/src-tauri/target/release/bundle/**/*.exe
-            apps/desktop/src-tauri/target/release/bundle/**/*.dmg
-            apps/desktop/src-tauri/target/release/bundle/**/*.app.tar.gz
             apps/desktop/src-tauri/target/universal-apple-darwin/release/bundle/**/*.dmg
-            apps/desktop/src-tauri/target/universal-apple-darwin/release/bundle/**/*.app.tar.gz
 
   publish:
-    name: Publish GitHub Release downloads
+    name: Publish GitHub Release
     runs-on: ubuntu-latest
     needs: build
     env:
       RELEASE_TAG: ${{ github.event_name == 'workflow_dispatch' && inputs.release_tag || github.ref_name }}
+      GH_TOKEN: ${{ github.token }}
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v6
-
-      - name: Download native installers
-        uses: actions/download-artifact@v8
-        with:
-          path: release-assets
-
-      - name: Create or update GitHub Release
-        env:
-          GH_TOKEN: ${{ github.token }}
+      - uses: actions/checkout@v6
+      - uses: actions/download-artifact@v8
+        with: { path: release-assets }
+      - name: Create checksums
+        run: find release-assets -type f -print0 | sort -z | xargs -0 sha256sum > release-assets/SHA256SUMS.txt
+      - name: Create or update release
+        shell: bash
         run: |
           set -euo pipefail
+          prerelease=()
+          [[ "$RELEASE_TAG" == *-* ]] && prerelease=(--prerelease)
           if gh release view "$RELEASE_TAG" >/dev/null 2>&1; then
-            gh release edit "$RELEASE_TAG" --title "Jauto $RELEASE_TAG" --notes-file .github/release-notes/desktop.md
+            gh release edit "$RELEASE_TAG" --title "Jauto $RELEASE_TAG" --notes-file .github/release-notes/desktop.md "${prerelease[@]}"
           else
-            gh release create "$RELEASE_TAG" --target "$GITHUB_SHA" --title "Jauto $RELEASE_TAG" --notes-file .github/release-notes/desktop.md
-          fi
-
-      - name: Upload release assets
-        env:
-          GH_TOKEN: ${{ github.token }}
-        run: |
-          set -euo pipefail
-          mapfile -t files < <(find release-assets -type f \( -name "*.msi" -o -name "*.exe" -o -name "*.dmg" -o -name "*.app.tar.gz" \))
-          if [ "${#files[@]}" -eq 0 ]; then
-            echo "No native installers were found."
-            exit 1
+            gh release create "$RELEASE_TAG" --target "$GITHUB_SHA" --title "Jauto $RELEASE_TAG" --notes-file .github/release-notes/desktop.md "${prerelease[@]}"
           fi
+          mapfile -d '' files < <(find release-assets -type f -print0)
           gh release upload "$RELEASE_TAG" "${files[@]}" --clobber
diff --git a/README.md b/README.md
index 9f007e2..816d24d 100644
--- a/README.md
+++ b/README.md
@@ -102,10 +102,13 @@ The `Desktop native releases` workflow builds:
 - Windows x64 installers on `windows-latest`
 - macOS universal installers for Intel and Apple Silicon on `macos-latest`
 
-The generated `.msi`, `.exe`, `.dmg`, and `.app.tar.gz` files are attached to
+The generated `.msi`, `.exe`, and `.dmg` files are attached to
 the GitHub Release for that tag. The workflow can also be run manually from
 GitHub Actions with a `release_tag` value.
 
+See [the release runbook](docs/RELEASING.md) for required signing secrets,
+quality gates, checksums, and signature verification.
+
 Stable desktop releases require Windows signing and Apple Developer ID signing/notarization
 credentials in GitHub Actions. The release workflow refuses to publish stable installers when
 those credentials are unavailable.
diff --git a/docs/RELEASING.md b/docs/RELEASING.md
new file mode 100644
index 0000000..fdeee34
--- /dev/null
+++ b/docs/RELEASING.md
@@ -0,0 +1,26 @@
+# Desktop release process
+
+Jauto publishes signed Windows x64 and notarized universal macOS installers from `.github/workflows/desktop-release.yml`. A release is created only after dependency audit, lint, tests, type checks, web and desktop frontend builds, native builds, signature verification, and notarization validation succeed.
+
+## Required repository secrets
+
+- `WINDOWS_CERTIFICATE`: base64-encoded PFX Authenticode certificate.
+- `WINDOWS_CERTIFICATE_PASSWORD`: PFX password.
+- `APPLE_CERTIFICATE`: base64-encoded Developer ID Application PKCS#12 certificate.
+- `APPLE_CERTIFICATE_PASSWORD`: PKCS#12 and temporary keychain password.
+- `APPLE_SIGNING_IDENTITY`: full Developer ID Application identity.
+- `APPLE_ID`: Apple developer account email.
+- `APPLE_PASSWORD`: app-specific Apple ID password.
+- `APPLE_TEAM_ID`: Apple Developer team identifier.
+
+The workflow rejects publication when any credential is missing. Secrets are read only by the release workflow and are never available to pull-request jobs.
+
+## Publish a release
+
+1. Update every version together. `pnpm check:release-version` verifies the root, workspace packages, Tauri configuration, and Cargo package.
+2. Update `CHANGELOG.md` and `.github/release-notes/desktop.md`.
+3. Run `pnpm install --frozen-lockfile`, `pnpm audit --prod --audit-level moderate`, `pnpm lint`, `pnpm test`, and `pnpm typecheck`.
+4. Push a matching tag such as `v0.2.0`, or run **Signed desktop release** manually with that tag.
+5. Confirm the release contains signed `.msi` and `.exe` installers, a notarized `.dmg`, and `SHA256SUMS.txt`.
+
+Tags containing a hyphen, such as `v0.3.0-beta.1`, are marked as prereleases. Stable and prerelease installers use the same signing requirements.

From 8ac803ae8206addfe1b3562e8f8ad9ee92095c7e Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 21:09:22 -0300
Subject: [PATCH 33/43] ci(release): smoke-test installed desktop bundles

---
 .github/workflows/desktop-release.yml | 31 +++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/.github/workflows/desktop-release.yml b/.github/workflows/desktop-release.yml
index a1b118e..2ff0501 100644
--- a/.github/workflows/desktop-release.yml
+++ b/.github/workflows/desktop-release.yml
@@ -138,6 +138,20 @@ jobs:
             $signature = Get-AuthenticodeSignature $file.FullName
             if ($signature.Status -ne 'Valid') { throw "Invalid signature on $($file.Name): $($signature.Status)" }
           }
+      - name: Smoke-test installed Windows application
+        if: runner.os == 'Windows'
+        shell: pwsh
+        run: |
+          $msi = Get-ChildItem apps/desktop/src-tauri/target/release/bundle -Recurse -Filter *.msi | Select-Object -First 1
+          $installRoot = Join-Path $env:RUNNER_TEMP 'jauto-installed'
+          $process = Start-Process msiexec.exe -ArgumentList @('/a', $msi.FullName, '/qn', "TARGETDIR=$installRoot") -Wait -PassThru
+          if ($process.ExitCode -ne 0) { throw "MSI administrative install failed: $($process.ExitCode)" }
+          $executable = Get-ChildItem $installRoot -Recurse -Filter jauto.exe | Select-Object -First 1
+          if (-not $executable) { throw 'Installed jauto.exe was not found.' }
+          $app = Start-Process $executable.FullName -PassThru
+          Start-Sleep -Seconds 5
+          if ($app.HasExited -and $app.ExitCode -ne 0) { throw "Installed app exited with $($app.ExitCode)" }
+          if (-not $app.HasExited) { Stop-Process -Id $app.Id }
       - name: Verify macOS signature and notarization
         if: runner.os == 'macOS'
         shell: bash
@@ -148,6 +162,23 @@ jobs:
           test -n "$app" && test -n "$dmg"
           codesign --verify --deep --strict --verbose=2 "$app"
           xcrun stapler validate "$dmg"
+      - name: Smoke-test installed macOS application
+        if: runner.os == 'macOS'
+        shell: bash
+        run: |
+          set -euo pipefail
+          dmg=$(find apps/desktop/src-tauri/target/universal-apple-darwin/release/bundle -name '*.dmg' -type f | head -1)
+          mount_point="$RUNNER_TEMP/jauto-dmg"
+          installed_app="$RUNNER_TEMP/Jauto.app"
+          mkdir -p "$mount_point"
+          hdiutil attach "$dmg" -mountpoint "$mount_point" -nobrowse
+          cp -R "$mount_point/Jauto.app" "$installed_app"
+          hdiutil detach "$mount_point"
+          codesign --verify --deep --strict "$installed_app"
+          "$installed_app/Contents/MacOS/jauto" & app_pid=$!
+          sleep 5
+          kill -0 "$app_pid"
+          kill "$app_pid"
       - uses: actions/upload-artifact@v7
         with:
           name: jauto-${{ matrix.label }}

From 39c50c8e981348af1752979b8ad5ed603ce8c64b Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 21:18:14 -0300
Subject: [PATCH 34/43] feat(turing): support JFLAP multi-tape machines

---
 packages/core/__tests__/identity.test.ts      |   26 +-
 packages/core/src/alphabets.ts                |    6 +-
 packages/core/src/index.ts                    |    1 +
 packages/core/src/types.ts                    |    7 +
 packages/core/src/validation.ts               |   97 +-
 packages/jff/__tests__/compatibility.test.ts  |   88 +-
 .../jff/__tests__/fixtures/official/README.md |   13 +-
 .../fixtures/official/turingAnBnCnMulti.jff   |  134 ++
 packages/jff/__tests__/multi-tape.test.ts     |   41 +
 packages/jff/package.json                     |    1 +
 packages/jff/src/parser.ts                    |   37 +-
 packages/jff/src/parsers/tm.ts                |   73 +-
 packages/jff/src/serializer.ts                |   17 +-
 packages/jff/src/serializers/tm.ts            |   17 +-
 packages/simulator/src/configs.ts             |    2 +
 packages/simulator/src/tm-runner.ts           |  212 +-
 packages/ui/src/components/InspectorPanel.vue |   50 +-
 .../src/components/SemanticDiagramPanel.vue   |  186 +-
 .../ui/src/components/SimulationControls.vue  |   98 +-
 .../ui/src/composables/useCanvasRenderer.ts   |   86 +-
 .../src/composables/useInteractionManager.ts  |   37 +-
 packages/ui/src/stores/simulation.ts          |  143 +-
 pnpm-lock.yaml                                | 1901 ++++++++++++-----
 23 files changed, 2483 insertions(+), 790 deletions(-)
 create mode 100644 packages/jff/__tests__/fixtures/official/turingAnBnCnMulti.jff
 create mode 100644 packages/jff/__tests__/multi-tape.test.ts

diff --git a/packages/core/__tests__/identity.test.ts b/packages/core/__tests__/identity.test.ts
index 32c776d..560fb00 100644
--- a/packages/core/__tests__/identity.test.ts
+++ b/packages/core/__tests__/identity.test.ts
@@ -23,15 +23,33 @@ describe('document identity invariants', () => {
 
   it('diagnoses damaged imports without rejecting an empty editable draft', () => {
     expect(validateStructure(createEmptyAutomaton('fa'))).toEqual([]);
-    const fa: FiniteAutomaton = { kind: 'fa', states: [state, { ...state, x: NaN }], transitions: [{ id: 't', from: 's0', to: 'missing', read: '' }] };
+    const fa: FiniteAutomaton = {
+      kind: 'fa',
+      states: [state, { ...state, x: NaN }],
+      transitions: [{ id: 't', from: 's0', to: 'missing', read: '' }],
+    };
     const diagnostics = validateStructure(fa);
     expect(diagnostics.map((d) => d.message).join('\n')).toMatch(/Duplicate.*state ID/);
     expect(diagnostics.some((d) => d.stateId === 's0' && d.message.includes('finite'))).toBe(true);
-    expect(diagnostics.some((d) => d.transitionId === 't' && d.message.includes('missing'))).toBe(true);
+    expect(diagnostics.some((d) => d.transitionId === 't' && d.message.includes('missing'))).toBe(
+      true,
+    );
   });
 
   it('validates runtime TM properties', () => {
-    const tm = { kind: 'turing', tapes: 0, states: [state], transitions: [{ id: 't', from: 's0', to: 's0', read: '', write: '', move: 'UP' }] } as unknown as TuringMachine;
-    expect(validateStructure(tm)).toHaveLength(2);
+    const tm = {
+      kind: 'turing',
+      tapes: 0,
+      states: [state],
+      transitions: [{ id: 't', from: 's0', to: 's0', read: '', write: '', move: 'UP' }],
+    } as unknown as TuringMachine;
+    const messages = validateStructure(tm).map((diagnostic) => diagnostic.message);
+    expect(messages).toEqual(
+      expect.arrayContaining([
+        'Tape count must be a positive integer',
+        'TM transition action count must match the tape count',
+        'TM movement must be L, R or S',
+      ]),
+    );
   });
 });
diff --git a/packages/core/src/alphabets.ts b/packages/core/src/alphabets.ts
index 958ef81..a088831 100644
--- a/packages/core/src/alphabets.ts
+++ b/packages/core/src/alphabets.ts
@@ -22,8 +22,10 @@ export function getStackAlphabet(automaton: PushdownAutomaton): ReadonlySet<stri
 export function getTapeAlphabet(automaton: TuringMachine): ReadonlySet<string> {
   const alphabet = new Set<string>(['\u25A1']);
   for (const transition of automaton.transitions) {
-    addSymbols(alphabet, transition.read || '\u25A1');
-    addSymbols(alphabet, transition.write || '\u25A1');
+    for (const action of transition.tapeActions ?? [transition]) {
+      addSymbols(alphabet, action.read || '\u25A1');
+      addSymbols(alphabet, action.write || '\u25A1');
+    }
   }
   return alphabet;
 }
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index 1f491e3..41086b5 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -6,6 +6,7 @@ export type {
   FATransition,
   PDATransition,
   TMTransition,
+  TMTapeAction,
   Automaton,
   FiniteAutomaton,
   PushdownAutomaton,
diff --git a/packages/core/src/types.ts b/packages/core/src/types.ts
index 3486c07..99b7386 100644
--- a/packages/core/src/types.ts
+++ b/packages/core/src/types.ts
@@ -38,6 +38,13 @@ export interface TMTransition extends TransitionLayout {
   readonly read: string;
   readonly write: string;
   readonly move: 'L' | 'R' | 'S';
+  readonly tapeActions?: readonly TMTapeAction[];
+}
+
+export interface TMTapeAction {
+  readonly read: string;
+  readonly write: string;
+  readonly move: 'L' | 'R' | 'S';
 }
 
 export type AnyTransition = FATransition | PDATransition | TMTransition;
diff --git a/packages/core/src/validation.ts b/packages/core/src/validation.ts
index 1747023..f2a806d 100644
--- a/packages/core/src/validation.ts
+++ b/packages/core/src/validation.ts
@@ -41,7 +41,10 @@ function checkFADeterminism(automaton: FiniteAutomaton): boolean {
     if (readSymbols.some((symbol) => symbol === '')) return false;
     for (let i = 0; i < readSymbols.length; i++) {
       for (let j = i + 1; j < readSymbols.length; j++) {
-        if (readSymbols[i]!.startsWith(readSymbols[j]!) || readSymbols[j]!.startsWith(readSymbols[i]!)) {
+        if (
+          readSymbols[i]!.startsWith(readSymbols[j]!) ||
+          readSymbols[j]!.startsWith(readSymbols[i]!)
+        ) {
           return false;
         }
       }
@@ -55,8 +58,11 @@ function checkPDADeterminism(automaton: PushdownAutomaton): boolean {
     const transitions = getTransitionsFrom(automaton, state.id);
     for (let i = 0; i < transitions.length; i++) {
       for (let j = i + 1; j < transitions.length; j++) {
-        if (prefixesOverlap(transitions[i]!.read, transitions[j]!.read) &&
-            prefixesOverlap(transitions[i]!.pop, transitions[j]!.pop)) return false;
+        if (
+          prefixesOverlap(transitions[i]!.read, transitions[j]!.read) &&
+          prefixesOverlap(transitions[i]!.pop, transitions[j]!.pop)
+        )
+          return false;
       }
     }
   }
@@ -71,16 +77,20 @@ function checkTMDeterminism(automaton: TuringMachine): boolean {
   for (const state of automaton.states) {
     const transitions = getTransitionsFrom(automaton, state.id);
     for (const t of transitions) {
-      const read = t.read || '\u25A1';
-      const matches = transitions.filter(
-        (other) => other.id !== t.id && (other.read || '\u25A1') === read,
-      );
+      const read = tmReadKey(t);
+      const matches = transitions.filter((other) => other.id !== t.id && tmReadKey(other) === read);
       if (matches.length > 0) return false;
     }
   }
   return true;
 }
 
+function tmReadKey(transition: TuringMachine['transitions'][number]): string {
+  return (transition.tapeActions ?? [{ read: transition.read }])
+    .map((action) => action.read || '\u25A1')
+    .join('\u0000');
+}
+
 export function isComplete(automaton: AnyAutomaton): boolean {
   switch (automaton.kind) {
     case 'fa':
@@ -110,19 +120,25 @@ function checkPDACompleteness(automaton: PushdownAutomaton): boolean {
   if (inputAlphabet.length === 0) return false;
   return automaton.states.every((state) => {
     const transitions = getTransitionsFrom(automaton, state.id);
-    return inputAlphabet.every((input) => stackAlphabet.every((stack) =>
-      transitions.some((transition) =>
-        (transition.read === '' || transition.read.startsWith(input)) &&
-        (transition.pop === '' || transition.pop.startsWith(stack)),
+    return inputAlphabet.every((input) =>
+      stackAlphabet.every((stack) =>
+        transitions.some(
+          (transition) =>
+            (transition.read === '' || transition.read.startsWith(input)) &&
+            (transition.pop === '' || transition.pop.startsWith(stack)),
+        ),
       ),
-    ));
+    );
   });
 }
 
 function checkTMCompleteness(automaton: TuringMachine): boolean {
+  if (automaton.tapes !== 1) return false;
   const tapeAlphabet = getTapeAlphabet(automaton);
   return automaton.states.every((state) => {
-    const reads = new Set(getTransitionsFrom(automaton, state.id).map((transition) => transition.read || '\u25A1'));
+    const reads = new Set(
+      getTransitionsFrom(automaton, state.id).map((transition) => transition.read || '\u25A1'),
+    );
     return [...tapeAlphabet].every((symbol) => reads.has(symbol));
   });
 }
@@ -154,11 +170,19 @@ export function validateStructure(automaton: AnyAutomaton): ValidationDiagnostic
   const stateIds = new Set<string>();
   for (const state of automaton.states) {
     if (!state.id || stateIds.has(state.id)) {
-      diagnostics.push({ level: 'error', message: `Duplicate or empty state ID: "${state.id}"`, stateId: state.id });
+      diagnostics.push({
+        level: 'error',
+        message: `Duplicate or empty state ID: "${state.id}"`,
+        stateId: state.id,
+      });
     }
     stateIds.add(state.id);
     if (!Number.isFinite(state.x) || !Number.isFinite(state.y)) {
-      diagnostics.push({ level: 'error', message: 'State coordinates must be finite numbers', stateId: state.id });
+      diagnostics.push({
+        level: 'error',
+        message: 'State coordinates must be finite numbers',
+        stateId: state.id,
+      });
     }
   }
   if (automaton.states.filter((s) => s.isInitial).length > 1) {
@@ -167,12 +191,23 @@ export function validateStructure(automaton: AnyAutomaton): ValidationDiagnostic
   const transitionIds = new Set<string>();
   for (const t of automaton.transitions) {
     if (!t.id || transitionIds.has(t.id)) {
-      diagnostics.push({ level: 'error', message: `Duplicate or empty transition ID: "${t.id}"`, transitionId: t.id });
+      diagnostics.push({
+        level: 'error',
+        message: `Duplicate or empty transition ID: "${t.id}"`,
+        transitionId: t.id,
+      });
     }
     transitionIds.add(t.id);
-    for (const [role, id] of [['source', t.from], ['target', t.to]]) {
+    for (const [role, id] of [
+      ['source', t.from],
+      ['target', t.to],
+    ]) {
       if (!stateIds.has(id!)) {
-        diagnostics.push({ level: 'error', message: `Transition references missing ${role} state "${id}"`, transitionId: t.id });
+        diagnostics.push({
+          level: 'error',
+          message: `Transition references missing ${role} state "${id}"`,
+          transitionId: t.id,
+        });
       }
     }
   }
@@ -181,8 +216,30 @@ export function validateStructure(automaton: AnyAutomaton): ValidationDiagnostic
       diagnostics.push({ level: 'error', message: 'Tape count must be a positive integer' });
     }
     for (const t of automaton.transitions) {
-      if (!['L', 'R', 'S'].includes(t.move)) {
-        diagnostics.push({ level: 'error', message: 'TM movement must be L, R or S', transitionId: t.id });
+      const actions = t.tapeActions ?? [t];
+      if (actions.length !== automaton.tapes) {
+        diagnostics.push({
+          level: 'error',
+          message: 'TM transition action count must match the tape count',
+          transitionId: t.id,
+        });
+      }
+      if (
+        actions[0] &&
+        (actions[0].read !== t.read || actions[0].write !== t.write || actions[0].move !== t.move)
+      ) {
+        diagnostics.push({
+          level: 'error',
+          message: 'TM primary transition fields must match tape 1',
+          transitionId: t.id,
+        });
+      }
+      if (actions.some((action) => !['L', 'R', 'S'].includes(action.move))) {
+        diagnostics.push({
+          level: 'error',
+          message: 'TM movement must be L, R or S',
+          transitionId: t.id,
+        });
       }
     }
   }
diff --git a/packages/jff/__tests__/compatibility.test.ts b/packages/jff/__tests__/compatibility.test.ts
index 4ec2d22..d5ab6a5 100644
--- a/packages/jff/__tests__/compatibility.test.ts
+++ b/packages/jff/__tests__/compatibility.test.ts
@@ -5,13 +5,21 @@ import { parseJFF } from '../src/parser';
 import { serializeJFF } from '../src/serializer';
 
 const state = { id: 's0', name: 'q0', x: 0, y: 0, isInitial: true, isFinal: false };
-const graph: FiniteAutomaton = { kind: 'fa', states: [state, { ...state, id: 's1', name: 'q1', isInitial: false, isFinal: true }], transitions: [{ id: 't', from: 's0', to: 's1', read: '' }] };
-const wrap = (body: string, kind = 'fa', extra = '') => `<structure><type>${kind}</type>${extra}<automaton>${body}</automaton></structure>`;
+const graph: FiniteAutomaton = {
+  kind: 'fa',
+  states: [state, { ...state, id: 's1', name: 'q1', isInitial: false, isFinal: true }],
+  transitions: [{ id: 't', from: 's0', to: 's1', read: '' }],
+};
+const wrap = (body: string, kind = 'fa', extra = '') =>
+  `<structure><type>${kind}</type>${extra}<automaton>${body}</automaton></structure>`;
 const q = '<state id="0" name="q0"><x>0</x><y>0</y><initial/></state>';
 
 describe('JFLAP exchange safety', () => {
   it('exports independent integer identities with consistent endpoints', () => {
-    const xml = serializeJFF({ ...graph, states: [...graph.states, { ...state, id: '0', isInitial: false }] });
+    const xml = serializeJFF({
+      ...graph,
+      states: [...graph.states, { ...state, id: '0', isInitial: false }],
+    });
     expect(XMLValidator.validate(xml)).toBe(true);
     const doc = new XMLParser({ ignoreAttributes: false, parseAttributeValue: false }).parse(xml);
     const ids = doc.structure.automaton.state.map((s: Record<string, string>) => s['@_id']);
@@ -24,18 +32,30 @@ describe('JFLAP exchange safety', () => {
 
   it.each(['fa', 'pda', 'turing'] as const)('escapes every semantic field for %s', (kind) => {
     const value = ' <&>"\'Ω ';
-    const edge = { ...graph.transitions[0]!, read: value, pop: value, push: value, write: value, move: 'S' as const };
+    const edge = {
+      ...graph.transitions[0]!,
+      read: value,
+      pop: value,
+      push: value,
+      write: value,
+      move: 'S' as const,
+    };
     const automaton = { ...graph, kind, tapes: 1, transitions: [edge] } as AnyAutomaton;
     const xml = serializeJFF(automaton);
     expect(XMLValidator.validate(xml)).toBe(true);
     const parsed = parseJFF(xml).automaton.transitions[0]!;
     expect(parsed.read).toBe(value);
-    if ('pop' in parsed) { expect(parsed.pop).toBe(value); expect(parsed.push).toBe(value); }
+    if ('pop' in parsed) {
+      expect(parsed.pop).toBe(value);
+      expect(parsed.push).toBe(value);
+    }
     if ('write' in parsed) expect(parsed.write).toBe(value);
   });
 
   it('preserves literal whitespace separately from epsilon', () => {
-    const parsed = parseJFF(wrap(q + '<transition><from>0</from><to>0</to><read> </read></transition>'));
+    const parsed = parseJFF(
+      wrap(q + '<transition><from>0</from><to>0</to><read> </read></transition>'),
+    );
     expect(parsed.automaton.transitions[0]?.read).toBe(' ');
     expect(parseJFF(serializeJFF(parsed.automaton)).automaton.transitions[0]?.read).toBe(' ');
   });
@@ -46,14 +66,20 @@ describe('JFLAP exchange safety', () => {
   });
 
   it('decodes numeric references once and refuses invalid entities', () => {
-    const body = (read: string) => wrap(q + `<transition><from>0</from><to>0</to><read>${read}</read></transition>`);
+    const body = (read: string) =>
+      wrap(q + `<transition><from>0</from><to>0</to><read>${read}</read></transition>`);
     expect(parseJFF(body('&#x1F600;&amp;lt;')).automaton.transitions[0]?.read).toBe('😀&lt;');
     expect(() => parseJFF(body('&#0;'))).toThrow();
     expect(() => parseJFF(body('&unknown;'))).toThrow();
   });
 
   it('preserves notes, labels and transition control points', () => {
-    const parsed = parseJFF(wrap(q.replace('<initial/>', '<initial/><label> label </label>') + '<note><text>proof &amp; explanation</text><x>-10</x><y>5.5</y></note><transition><from>0</from><to>0</to><read/><controlx>22</controlx><controly>-30</controly></transition>')).automaton;
+    const parsed = parseJFF(
+      wrap(
+        q.replace('<initial/>', '<initial/><label> label </label>') +
+          '<note><text>proof &amp; explanation</text><x>-10</x><y>5.5</y></note><transition><from>0</from><to>0</to><read/><controlx>22</controlx><controly>-30</controly></transition>',
+      ),
+    ).automaton;
     const next = parseJFF(serializeJFF(parsed)).automaton;
     expect(next.meta?.notes).toEqual([{ text: 'proof & explanation', x: -10, y: 5.5 }]);
     expect(next.states[0]?.label).toBe(' label ');
@@ -66,22 +92,54 @@ describe('JFLAP exchange safety', () => {
     wrap(q.replace('<x>0</x>', '<x>12abc</x>')),
     wrap(q + '<transition><from>0</from><to>99</to><read>a</read></transition>'),
     wrap('<block id="0"/>', 'turing'),
-    wrap(q, 'turing', '<tapes>2</tapes>'),
-    wrap(q + '<transition><from>0</from><to>0</to><read/><write/><move>UP</move></transition>', 'turing'),
+    wrap(
+      q + '<transition><from>0</from><to>0</to><read/><write/><move>UP</move></transition>',
+      'turing',
+    ),
     wrap(q + '<unknown>unpreservable</unknown>'),
     '<!DOCTYPE structure [<!ENTITY x "expansion">]>' + wrap(q),
   ])('rejects malformed or unsupported documents without degrading them', (xml) => {
     expect(() => parseJFF(xml)).toThrow();
   });
 
-  it('reads tape-one attributes but refuses additional tape fields', () => {
-    const edge = '<transition><from>0</from><to>0</to><read tape="1">a</read><write tape="1"/><move tape="1">S</move></transition>';
-    expect(parseJFF(wrap(q + edge, 'turing')).automaton.transitions[0]).toMatchObject({ read: 'a', write: '', move: 'S' });
-    expect(() => parseJFF(wrap(q + edge.replace('<read tape="1">a</read>', '<read tape="1">a</read><read tape="2">b</read>'), 'turing'))).toThrow();
+  it('reads tape attributes and requires a complete action for every declared tape', () => {
+    const edge =
+      '<transition><from>0</from><to>0</to><read tape="1">a</read><write tape="1"/><move tape="1">S</move></transition>';
+    expect(parseJFF(wrap(q + edge, 'turing')).automaton.transitions[0]).toMatchObject({
+      read: 'a',
+      write: '',
+      move: 'S',
+    });
+    expect(() =>
+      parseJFF(
+        wrap(
+          q +
+            edge.replace(
+              '<read tape="1">a</read>',
+              '<read tape="1">a</read><read tape="2">b</read>',
+            ),
+          'turing',
+        ),
+      ),
+    ).toThrow();
+    const second = '<read tape="2">b</read><write tape="2">c</write><move tape="2">L</move>';
+    const parsed = parseJFF(
+      wrap(
+        q + edge.replace('</transition>', `${second}</transition>`),
+        'turing',
+        '<tapes>2</tapes>',
+      ),
+    ).automaton;
+    expect(parsed.kind === 'turing' && parsed.transitions[0]?.tapeActions).toEqual([
+      { read: 'a', write: '', move: 'S' },
+      { read: 'b', write: 'c', move: 'L' },
+    ]);
   });
 
   it('refuses corrupt graphs and forbidden characters on export', () => {
     expect(() => serializeJFF({ ...graph, states: [state, state] })).toThrow();
-    expect(() => serializeJFF({ ...graph, transitions: [{ ...graph.transitions[0]!, read: '\u0000' }] })).toThrow('forbidden');
+    expect(() =>
+      serializeJFF({ ...graph, transitions: [{ ...graph.transitions[0]!, read: '\u0000' }] }),
+    ).toThrow('forbidden');
   });
 });
diff --git a/packages/jff/__tests__/fixtures/official/README.md b/packages/jff/__tests__/fixtures/official/README.md
index e513f95..ba37bd2 100644
--- a/packages/jff/__tests__/fixtures/official/README.md
+++ b/packages/jff/__tests__/fixtures/official/README.md
@@ -2,12 +2,13 @@
 
 Files in this directory are retained unchanged from their public tutorial sources. Normal tests use these local copies and do not download fixtures.
 
-| File | Source | Retrieved | Expected behavior |
-| --- | --- | --- | --- |
-| `pdaexample.jff` | https://www.jflap.org/tutorial/pda/construct/pdaexample.jff | 2026-09-05 | Accepts `a^n b^n` for `n >= 1`; starts with stack `Z` |
-| `ex1.3a.jff` | https://www.jflap.org/jflapbook/files/ex1.3a.jff | 2026-09-06 | NFA for at least two `a`s followed by `b`s, with each symbol count satisfying the divisibility branches described by the book |
-| `ex5.1.jff` | https://www.jflap.org/jflapbook/files/ex5.1.jff | 2026-09-06 | PDA for one or more `a`s followed by more `b`s than `a`s |
-| `ex9-anbncn.jff` | https://www.jflap.org/jflapbook/files/ex9-anbncn.jff | 2026-09-06 | Single-tape TM for `a^n b^n c^n`, including empty input |
+| File                    | Source                                                            | Retrieved  | Expected behavior                                                                                                             |
+| ----------------------- | ----------------------------------------------------------------- | ---------- | ----------------------------------------------------------------------------------------------------------------------------- |
+| `pdaexample.jff`        | https://www.jflap.org/tutorial/pda/construct/pdaexample.jff       | 2026-09-05 | Accepts `a^n b^n` for `n >= 1`; starts with stack `Z`                                                                         |
+| `ex1.3a.jff`            | https://www.jflap.org/jflapbook/files/ex1.3a.jff                  | 2026-09-06 | NFA for at least two `a`s followed by `b`s, with each symbol count satisfying the divisibility branches described by the book |
+| `ex5.1.jff`             | https://www.jflap.org/jflapbook/files/ex5.1.jff                   | 2026-09-06 | PDA for one or more `a`s followed by more `b`s than `a`s                                                                      |
+| `ex9-anbncn.jff`        | https://www.jflap.org/jflapbook/files/ex9-anbncn.jff              | 2026-09-06 | Single-tape TM for `a^n b^n c^n`, including empty input                                                                       |
+| `turingAnBnCnMulti.jff` | https://www.jflap.org/tutorial/turing/multi/turingAnBnCnMulti.jff | 2026-09-06 | Official three-tape TM for `a^n b^n c^n`                                                                                      |
 
 The example's XML identifies JFLAP 6.1; it is published in the official tutorial and uses the PDA structure accepted by JFLAP 7.1. Its language follows from the transitions: the first `a` replaces `Z` with `aZ`, more `a`s push `a`, each `b` pops one `a`, and the final epsilon transition is enabled when `Z` is exposed.
 
diff --git a/packages/jff/__tests__/fixtures/official/turingAnBnCnMulti.jff b/packages/jff/__tests__/fixtures/official/turingAnBnCnMulti.jff
new file mode 100644
index 0000000..8768f77
--- /dev/null
+++ b/packages/jff/__tests__/fixtures/official/turingAnBnCnMulti.jff
@@ -0,0 +1,134 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><!--Created with JFLAP 6.1.--><structure>
+	<type>turing</type>
+	<tapes>3</tapes>
+	<automaton>
+		<!--The list of states.-->
+		<state id="0" name="q0">
+			<x>82.0</x>
+			<y>70.0</y>
+			<initial/>
+		</state>
+		<state id="1" name="q1">
+			<x>396.0</x>
+			<y>131.0</y>
+		</state>
+		<state id="2" name="q2">
+			<x>80.0</x>
+			<y>209.0</y>
+		</state>
+		<state id="3" name="q3">
+			<x>470.0</x>
+			<y>266.0</y>
+			<final/>
+		</state>
+		<state id="4" name="q4">
+			<x>519.0</x>
+			<y>16.0</y>
+		</state>
+		<!--The list of transitions.-->
+		<transition>
+			<from>4</from>
+			<to>3</to>
+			<read tape="1"/>
+			<write tape="1"/>
+			<move tape="1">S</move>
+			<read tape="2"/>
+			<write tape="2"/>
+			<move tape="2">S</move>
+			<read tape="3"/>
+			<write tape="3"/>
+			<move tape="3">S</move>
+		</transition>
+		<transition>
+			<from>2</from>
+			<to>2</to>
+			<read tape="1">c</read>
+			<write tape="1">c</write>
+			<move tape="1">R</move>
+			<read tape="2">a</read>
+			<write tape="2">a</write>
+			<move tape="2">L</move>
+			<read tape="3">b</read>
+			<write tape="3">b</write>
+			<move tape="3">L</move>
+		</transition>
+		<transition>
+			<from>0</from>
+			<to>0</to>
+			<read tape="1">a</read>
+			<write tape="1">a</write>
+			<move tape="1">R</move>
+			<read tape="2"/>
+			<write tape="2">a</write>
+			<move tape="2">R</move>
+			<read tape="3"/>
+			<write tape="3"/>
+			<move tape="3">S</move>
+		</transition>
+		<transition>
+			<from>1</from>
+			<to>1</to>
+			<read tape="1">b</read>
+			<write tape="1">b</write>
+			<move tape="1">R</move>
+			<read tape="2"/>
+			<write tape="2"/>
+			<move tape="2">S</move>
+			<read tape="3"/>
+			<write tape="3">b</write>
+			<move tape="3">R</move>
+		</transition>
+		<transition>
+			<from>0</from>
+			<to>1</to>
+			<read tape="1">b</read>
+			<write tape="1">b</write>
+			<move tape="1">R</move>
+			<read tape="2"/>
+			<write tape="2"/>
+			<move tape="2">S</move>
+			<read tape="3"/>
+			<write tape="3">b</write>
+			<move tape="3">R</move>
+		</transition>
+		<transition>
+			<from>1</from>
+			<to>2</to>
+			<read tape="1">c</read>
+			<write tape="1">c</write>
+			<move tape="1">S</move>
+			<read tape="2"/>
+			<write tape="2"/>
+			<move tape="2">L</move>
+			<read tape="3"/>
+			<write tape="3"/>
+			<move tape="3">L</move>
+		</transition>
+		<transition>
+			<from>0</from>
+			<to>4</to>
+			<read tape="1"/>
+			<write tape="1"/>
+			<move tape="1">S</move>
+			<read tape="2"/>
+			<write tape="2"/>
+			<move tape="2">L</move>
+			<read tape="3"/>
+			<write tape="3"/>
+			<move tape="3">S</move>
+		</transition>
+		<transition>
+			<from>2</from>
+			<to>3</to>
+			<read tape="1"/>
+			<write tape="1"/>
+			<move tape="1">S</move>
+			<read tape="2"/>
+			<write tape="2"/>
+			<move tape="2">S</move>
+			<read tape="3"/>
+			<write tape="3"/>
+			<move tape="3">R</move>
+		</transition>
+	</automaton>
+</structure>
\ No newline at end of file
diff --git a/packages/jff/__tests__/multi-tape.test.ts b/packages/jff/__tests__/multi-tape.test.ts
new file mode 100644
index 0000000..0c70a91
--- /dev/null
+++ b/packages/jff/__tests__/multi-tape.test.ts
@@ -0,0 +1,41 @@
+import { readFileSync } from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { describe, expect, it } from 'vitest';
+import { createTMRunner } from '@jauto/simulator';
+import { parseJFF, serializeJFF } from '../src';
+
+const fixture = readFileSync(
+  fileURLToPath(new URL('./fixtures/official/turingAnBnCnMulti.jff', import.meta.url)),
+  'utf8',
+);
+
+describe('official JFLAP multi-tape Turing machine', () => {
+  it('imports every tape action and preserves it through export', () => {
+    const parsed = parseJFF(fixture).automaton;
+    expect(parsed.kind).toBe('turing');
+    if (parsed.kind !== 'turing') return;
+    expect(parsed.tapes).toBe(3);
+    expect(parsed.transitions.every((transition) => transition.tapeActions?.length === 3)).toBe(
+      true,
+    );
+    const reopened = parseJFF(serializeJFF(parsed)).automaton;
+    expect({
+      ...reopened,
+      transitions: reopened.transitions.map(({ id: _id, ...transition }) => transition),
+    }).toEqual({
+      ...parsed,
+      transitions: parsed.transitions.map(({ id: _id, ...transition }) => transition),
+    });
+  });
+
+  it('executes the published a^n b^n c^n machine on all tapes', () => {
+    const machine = parseJFF(fixture).automaton;
+    if (machine.kind !== 'turing') throw new Error('Expected a Turing machine');
+    expect(createTMRunner(machine, 'aabbcc').run().outcome).toBe('accepted');
+    expect(createTMRunner(machine, 'abc').run().outcome).toBe('accepted');
+    expect(createTMRunner(machine, 'aabcc').run().outcome).not.toBe('accepted');
+    const result = createTMRunner(machine, 'abc').run();
+    expect(result.finalConfig.tapes).toHaveLength(3);
+    expect(result.finalConfig.headPositions).toHaveLength(3);
+  });
+});
diff --git a/packages/jff/package.json b/packages/jff/package.json
index 4db548a..d3f346d 100644
--- a/packages/jff/package.json
+++ b/packages/jff/package.json
@@ -26,6 +26,7 @@
     "fast-xml-parser": "^5.8.0"
   },
   "devDependencies": {
+    "@jauto/simulator": "workspace:*",
     "typescript": "^6.0.3",
     "vite": "^8.0.16",
     "vite-plugin-dts": "^5.0.2",
diff --git a/packages/jff/src/parser.ts b/packages/jff/src/parser.ts
index 9cd999c..23e4b1b 100644
--- a/packages/jff/src/parser.ts
+++ b/packages/jff/src/parser.ts
@@ -24,7 +24,8 @@ const xmlParser = new XMLParser({
 
 export function parseJFF(xml: string): ParseResult {
   if (xml.length > 5_000_000) throw new JFFParseError('Document exceeds the 5 MB import limit');
-  if (/<!DOCTYPE|<!ENTITY/i.test(xml)) throw new JFFParseError('DTD and custom XML entities are not supported');
+  if (/<!DOCTYPE|<!ENTITY/i.test(xml))
+    throw new JFFParseError('DTD and custom XML entities are not supported');
   const valid = XMLValidator.validate(xml);
   if (valid !== true) throw new JFFParseError(`Invalid XML: ${valid.err.msg}`);
   const parsed = xmlNode(xmlParser.parse(xml), 'document');
@@ -41,29 +42,45 @@ export function parseJFF(xml: string): ParseResult {
     throw new JFFParseError('Mixed nested and legacy automaton structures are not supported');
   }
   const node = 'automaton' in structure ? xmlNode(structure.automaton, 'automaton') : structure;
-  checkKeys(node, node === structure ? ['type', 'tapes', 'state', 'transition', 'note'] : ['tapes', 'state', 'transition', 'note'], 'automaton');
+  checkKeys(
+    node,
+    node === structure
+      ? ['type', 'tapes', 'state', 'transition', 'note']
+      : ['tapes', 'state', 'transition', 'note'],
+    'automaton',
+  );
   if (kind !== 'turing' && ('tapes' in structure || 'tapes' in node)) {
     throw new JFFParseError('Tape declarations are only supported for Turing machines');
   }
   const tapes = xmlNumber(structure.tapes ?? node.tapes, 'tapes', 1);
-  if (tapes !== 1 || xmlNumber(node.tapes, 'tapes', 1) !== 1) {
-    throw new JFFParseError('Only single-tape documents are currently supported');
-  }
+  if (!Number.isInteger(tapes) || tapes < 1 || tapes > 8)
+    throw new JFFParseError('Tape count must be between 1 and 8');
   const states = parseStates(node);
   const notes = xmlElements(node.note, 'note').map((note) => {
     checkKeys(note, ['text', 'x', 'y'], 'note');
-    return { text: xmlText(note.text, 'text'), x: xmlNumber(note.x, 'x'), y: xmlNumber(note.y, 'y') };
+    return {
+      text: xmlText(note.text, 'text'),
+      x: xmlNumber(note.x, 'x'),
+      y: xmlNumber(note.y, 'y'),
+    };
   });
   const base = { states, ...(notes.length ? { meta: { notes } } : {}) };
   let automaton: AnyAutomaton;
   switch (kind) {
-    case 'fa': automaton = { ...base, kind, transitions: parseFATransitions(node) }; break;
-    case 'pda': automaton = { ...base, kind, transitions: parsePDATransitions(node) }; break;
-    case 'turing': automaton = { ...base, kind, tapes, transitions: parseTMTransitions(node) }; break;
+    case 'fa':
+      automaton = { ...base, kind, transitions: parseFATransitions(node) };
+      break;
+    case 'pda':
+      automaton = { ...base, kind, transitions: parsePDATransitions(node) };
+      break;
+    case 'turing':
+      automaton = { ...base, kind, tapes, transitions: parseTMTransitions(node, tapes) };
+      break;
   }
   const errors = validateStructure(automaton);
   if (errors.length) throw new JFFParseError(errors.map((error) => error.message).join('; '));
   const warnings: JFFValidationWarning[] = [];
-  if (!states.some((state) => state.isInitial)) warnings.push(new JFFValidationWarning('No initial state found; set one before simulation'));
+  if (!states.some((state) => state.isInitial))
+    warnings.push(new JFFValidationWarning('No initial state found; set one before simulation'));
   return { automaton, warnings };
 }
diff --git a/packages/jff/src/parsers/tm.ts b/packages/jff/src/parsers/tm.ts
index 455490a..69b0d87 100644
--- a/packages/jff/src/parsers/tm.ts
+++ b/packages/jff/src/parsers/tm.ts
@@ -5,11 +5,9 @@ import { JFFParseError } from '../errors';
 
 class TMTransitionIdGenerator {
   private counter = 0;
-
   nextId(): string {
     return `jff_tm_t${this.counter++}`;
   }
-
   reset(): void {
     this.counter = 0;
   }
@@ -17,45 +15,74 @@ class TMTransitionIdGenerator {
 
 const globalGenerator = new TMTransitionIdGenerator();
 
-function parseMove(value: unknown): 'L' | 'R' | 'S' {
-  const s = tapeText(value, TAG.MOVE).trim();
-  if (s === 'L' || s === 'R' || s === 'S') return s;
+function parseMove(value: string): 'L' | 'R' | 'S' {
+  const move = value.trim();
+  if (move === 'L' || move === 'R' || move === 'S') return move;
   throw new JFFParseError('TM movement must be L, R or S');
 }
 
-function tapeText(value: unknown, tag: string): string {
-  if (value && typeof value === 'object') {
-    const node = xmlNode(value, tag);
+function tapeValues(value: unknown, tag: string, tapeCount: number): string[] {
+  const entries = Array.isArray(value) ? value : [value];
+  const values = Array.from({ length: tapeCount }, () => '');
+  const seen = new Set<number>();
+  for (const entry of entries) {
+    if (typeof entry === 'string' || entry === undefined) {
+      if (entries.length > 1 || tapeCount > 1)
+        throw new JFFParseError(`<${tag}> must identify its tape`);
+      values[0] = xmlText(entry, tag);
+      seen.add(0);
+      continue;
+    }
+    const node = xmlNode(entry, tag);
     checkKeys(node, ['@_tape', '#text'], tag);
-    if (xmlText(node['@_tape'], 'tape', '1').trim() !== '1') {
-      throw new JFFParseError('Multi-tape transitions are not supported');
+    const tape = Number(xmlText(node['@_tape'], 'tape', '1')) - 1;
+    if (!Number.isInteger(tape) || tape < 0 || tape >= tapeCount || seen.has(tape)) {
+      throw new JFFParseError(`Invalid or duplicate tape number on <${tag}>`);
     }
-    return xmlText(node['#text'], tag);
+    values[tape] = xmlText(node['#text'], tag);
+    seen.add(tape);
   }
-  return xmlText(value, tag);
+  if (seen.size !== tapeCount)
+    throw new JFFParseError(`TM transition must define <${tag}> for every tape`);
+  return values;
 }
 
-export function parseTMTransitions(automatonNode: Record<string, unknown>): TMTransition[] {
+export function parseTMTransitions(
+  automatonNode: Record<string, unknown>,
+  tapeCount = 1,
+): TMTransition[] {
   const raw = automatonNode[TAG.TRANSITION];
   if (!raw) return [];
-
-  const nodes = xmlElements(raw, 'transition');
-  return nodes.map((node: Record<string, unknown>) => {
-    checkKeys(node, ['from', 'to', 'read', 'write', 'move', 'controlx', 'controly'], 'TM transition');
+  return xmlElements(raw, 'transition').map((node) => {
+    checkKeys(
+      node,
+      ['from', 'to', 'read', 'write', 'move', 'controlx', 'controly'],
+      'TM transition',
+    );
     const from = xmlText(node[TAG.FROM], TAG.FROM).trim();
     const to = xmlText(node[TAG.TO], TAG.TO).trim();
-    const read = tapeText(node[TAG.READ], TAG.READ);
-    const write = tapeText(node[TAG.WRITE], TAG.WRITE);
-    const move = parseMove(node[TAG.MOVE]);
-
-    return { id: globalGenerator.nextId(), from, to, read, write, move, ...parseLayout(node) };
+    const reads = tapeValues(node[TAG.READ], TAG.READ, tapeCount);
+    const writes = tapeValues(node[TAG.WRITE], TAG.WRITE, tapeCount);
+    const moves = tapeValues(node[TAG.MOVE], TAG.MOVE, tapeCount).map(parseMove);
+    const tapeActions = reads.map((read, index) => ({
+      read,
+      write: writes[index]!,
+      move: moves[index]!,
+    }));
+    return {
+      id: globalGenerator.nextId(),
+      from,
+      to,
+      ...tapeActions[0]!,
+      ...(tapeCount > 1 ? { tapeActions } : {}),
+      ...parseLayout(node),
+    };
   });
 }
 
 export function resetTMCounter(): void {
   globalGenerator.reset();
 }
-
 export function createIdGenerator() {
   return new TMTransitionIdGenerator();
 }
diff --git a/packages/jff/src/serializer.ts b/packages/jff/src/serializer.ts
index f2ac2fe..13dae8c 100644
--- a/packages/jff/src/serializer.ts
+++ b/packages/jff/src/serializer.ts
@@ -10,9 +10,6 @@ import { serializeTMTransitions } from './serializers/tm';
 export function serializeJFF(automaton: AnyAutomaton): string {
   const errors = validateStructure(automaton);
   if (errors.length) throw new JFFSerializeError(errors.map((error) => error.message).join('; '));
-  if (automaton.kind === 'turing' && automaton.tapes !== 1) {
-    throw new JFFSerializeError('Only single-tape documents are currently supported');
-  }
   const ids = new Map<string, string>();
   const used = new Set<string>();
   for (const state of automaton.states) {
@@ -36,7 +33,7 @@ export function serializeJFF(automaton: AnyAutomaton): string {
   lines.push('<!--Created with Jauto.-->');
   lines.push('<structure>');
   lines.push(`\t<type>${automaton.kind}</type>`);
-  if (automaton.kind === 'turing') lines.push('\t<tapes>1</tapes>');
+  if (automaton.kind === 'turing') lines.push(`\t<tapes>${automaton.tapes}</tapes>`);
   lines.push('\t<automaton>');
 
   const statesXml = serializeStates(automaton.states.map((s) => ({ ...s, id: ids.get(s.id)! })));
@@ -51,13 +48,19 @@ export function serializeJFF(automaton: AnyAutomaton): string {
       transitionsXml = serializePDATransitions(mapTransitions(automaton.transitions));
       break;
     case 'turing':
-      transitionsXml = serializeTMTransitions(mapTransitions(automaton.transitions));
+      transitionsXml = serializeTMTransitions(
+        mapTransitions(automaton.transitions),
+        automaton.tapes,
+      );
       break;
   }
   if (transitionsXml) lines.push(transitionsXml);
   for (const note of automaton.meta?.notes ?? []) {
-    if (!Number.isFinite(note.x) || !Number.isFinite(note.y)) throw new JFFSerializeError('Note coordinates must be finite');
-    lines.push(`\t\t<note><text>${escapeXml(note.text)}</text><x>${note.x}</x><y>${note.y}</y></note>`);
+    if (!Number.isFinite(note.x) || !Number.isFinite(note.y))
+      throw new JFFSerializeError('Note coordinates must be finite');
+    lines.push(
+      `\t\t<note><text>${escapeXml(note.text)}</text><x>${note.x}</x><y>${note.y}</y></note>`,
+    );
   }
 
   lines.push('\t</automaton>');
diff --git a/packages/jff/src/serializers/tm.ts b/packages/jff/src/serializers/tm.ts
index 6e8bdca..322292a 100644
--- a/packages/jff/src/serializers/tm.ts
+++ b/packages/jff/src/serializers/tm.ts
@@ -1,15 +1,24 @@
 import type { TMTransition } from '@jauto/core';
 import { escapeXml, serializeLayout } from '../xml';
 
-export function serializeTMTransitions(transitions: readonly TMTransition[]): string {
+export function serializeTMTransitions(
+  transitions: readonly TMTransition[],
+  tapeCount = 1,
+): string {
   return transitions
     .map((t) => {
       let inner = '';
       inner += `\t\t\t<from>${escapeXml(t.from)}</from>\n`;
       inner += `\t\t\t<to>${escapeXml(t.to)}</to>\n`;
-      inner += `\t\t\t<read>${escapeXml(t.read)}</read>\n`;
-      inner += `\t\t\t<write>${escapeXml(t.write)}</write>\n`;
-      inner += `\t\t\t<move>${escapeXml(t.move)}</move>\n`;
+      const actions = t.tapeActions ?? [t];
+      if (actions.length !== tapeCount)
+        throw new Error('TM transition action count must match tape count');
+      for (const [index, action] of actions.entries()) {
+        const attr = tapeCount > 1 ? ` tape="${index + 1}"` : '';
+        inner += `\t\t\t<read${attr}>${escapeXml(action.read)}</read>\n`;
+        inner += `\t\t\t<write${attr}>${escapeXml(action.write)}</write>\n`;
+        inner += `\t\t\t<move${attr}>${escapeXml(action.move)}</move>\n`;
+      }
       inner += serializeLayout(t);
       return `\t\t<transition>\n${inner}\t\t</transition>`;
     })
diff --git a/packages/simulator/src/configs.ts b/packages/simulator/src/configs.ts
index 8e70aa1..eef3321 100644
--- a/packages/simulator/src/configs.ts
+++ b/packages/simulator/src/configs.ts
@@ -21,5 +21,7 @@ export interface TMConfig {
   currentState: string;
   tape: readonly string[];
   headPosition: number;
+  tapes: readonly (readonly string[])[];
+  headPositions: readonly number[];
   stepCount: number;
 }
diff --git a/packages/simulator/src/tm-runner.ts b/packages/simulator/src/tm-runner.ts
index eae66ce..e425ad1 100644
--- a/packages/simulator/src/tm-runner.ts
+++ b/packages/simulator/src/tm-runner.ts
@@ -1,5 +1,11 @@
-import { isDeterministic, type TuringMachine } from '@jauto/core';
-import { UnsupportedSimulationError, type SimulationRunner, type StepResult, type RunResult, type SimulationStatus } from './types';
+import { isDeterministic, type TMTapeAction, type TuringMachine } from '@jauto/core';
+import {
+  UnsupportedSimulationError,
+  type SimulationRunner,
+  type StepResult,
+  type RunResult,
+  type SimulationStatus,
+} from './types';
 import type { TMConfig } from './configs';
 import { validateRunBudget } from './run-budget';
 
@@ -19,59 +25,91 @@ export function createTMRunner(
   const acceptByFinalState = options.acceptByFinalState ?? true;
   const acceptByHalting = options.acceptByHalting ?? false;
   const allowStay = options.allowStay ?? true;
-  if (!isDeterministic(automaton)) {
+  if (!isDeterministic(automaton))
     throw new UnsupportedSimulationError('Nondeterministic Turing machines are not supported yet');
+  const actionsFor = (transition: TuringMachine['transitions'][number]): readonly TMTapeAction[] =>
+    transition.tapeActions ?? [transition];
+  if (
+    automaton.transitions.some((transition) => actionsFor(transition).length !== automaton.tapes)
+  ) {
+    throw new UnsupportedSimulationError('Every Turing transition must define one action per tape');
   }
-  if (automaton.transitions.some((transition) => /[!~}]/.test(transition.read) || /[!~}]/.test(transition.write))) {
-    throw new UnsupportedSimulationError('JFLAP Turing-machine shortcut syntax is not supported yet');
+  if (
+    automaton.transitions.some((transition) =>
+      actionsFor(transition).some(
+        (action) => /[!~}]/.test(action.read) || /[!~}]/.test(action.write),
+      ),
+    )
+  ) {
+    throw new UnsupportedSimulationError(
+      'JFLAP Turing-machine shortcut syntax is not supported yet',
+    );
   }
-  if (automaton.transitions.some((transition) => transition.read.length > 1 || transition.write.length > 1)) {
+  if (
+    automaton.transitions.some((transition) =>
+      actionsFor(transition).some((action) => action.read.length > 1 || action.write.length > 1),
+    )
+  ) {
     throw new UnsupportedSimulationError('Turing transitions must read and write one tape symbol');
   }
-  if (!allowStay && automaton.transitions.some((transition) => transition.move === 'S')) {
+  if (
+    !allowStay &&
+    automaton.transitions.some((transition) =>
+      actionsFor(transition).some((action) => action.move === 'S'),
+    )
+  ) {
     throw new UnsupportedSimulationError('Stay moves are disabled by this execution profile');
   }
-  const initialState = automaton.states.find((s) => s.isInitial);
+  const initialState = automaton.states.find((state) => state.isInitial);
   if (!initialState) throw new Error('No initial state');
-  const initialId = initialState.id;
-  const initialIsFinal = initialState.isFinal;
+  const initialStateId = initialState.id;
+  const initialStateIsFinal = initialState.isFinal;
   const statesById = new Map(automaton.states.map((state) => [state.id, state]));
   const transitionsByState = new Map<string, typeof automaton.transitions>();
-  for (const transition of automaton.transitions) {
-    transitionsByState.set(transition.from, [...(transitionsByState.get(transition.from) ?? []), transition]);
-  }
-
-  const initialTape = input.length > 0 ? input.split('') : [BLANK];
-
-  let tape = [...initialTape];
-  let headPosition = 0;
+  for (const transition of automaton.transitions)
+    transitionsByState.set(transition.from, [
+      ...(transitionsByState.get(transition.from) ?? []),
+      transition,
+    ]);
+  const initialTapes = Array.from({ length: automaton.tapes }, (_, index) =>
+    index === 0 && input.length > 0 ? input.split('') : [BLANK],
+  );
+
+  let tapes = initialTapes.map((tape) => [...tape]);
+  let headPositions = Array.from({ length: automaton.tapes }, () => 0);
   let currentState = initialState.id;
   let stepCount = 0;
   let haltReason: 'final-state' | 'no-transition' | null =
-    initialIsFinal && acceptByFinalState ? 'final-state' : null;
+    initialState.isFinal && acceptByFinalState ? 'final-state' : null;
   let canceled = false;
   let path: string[] = [];
   let lastTransitionId: string | undefined;
 
-  function readTape(): string {
-    if (headPosition < 0 || headPosition >= tape.length) return BLANK;
-    return tape[headPosition] ?? BLANK;
+  function normalizeHead(index: number) {
+    while (headPositions[index]! < 0) {
+      tapes[index]!.unshift(BLANK);
+      headPositions[index] = headPositions[index]! + 1;
+    }
+    while (headPositions[index]! >= tapes[index]!.length) tapes[index]!.push(BLANK);
   }
 
-  function writeTape(symbol: string) {
-    while (headPosition >= tape.length) tape.push(BLANK);
-    while (headPosition < 0) {
-      tape.unshift(BLANK);
-      headPosition++;
-    }
-    tape[headPosition] = symbol || BLANK;
+  function readTape(index: number): string {
+    normalizeHead(index);
+    return tapes[index]![headPositions[index]!] ?? BLANK;
+  }
+
+  function writeTape(index: number, symbol: string) {
+    normalizeHead(index);
+    tapes[index]![headPositions[index]!] = symbol || BLANK;
   }
 
   function getConfig(): TMConfig {
     return {
       currentState,
-      tape: [...tape],
-      headPosition,
+      tape: [...tapes[0]!],
+      headPosition: headPositions[0]!,
+      tapes: tapes.map((tape) => [...tape]),
+      headPositions: [...headPositions],
       stepCount,
     };
   }
@@ -83,62 +121,50 @@ export function createTMRunner(
     return 'running';
   }
 
-  function step(): StepResult<TMConfig> {
-    if (getStatus() !== 'running') {
-      return snapshot();
-    }
-
-    const currentSymbol = readTape();
-
-    const transition = (transitionsByState.get(currentState) ?? []).find((t) => {
-      const tRead = t.read || BLANK;
-      return tRead === currentSymbol || (t.read === '' && currentSymbol === BLANK);
-    });
+  function snapshot(transitionIds: readonly string[] = []): StepResult<TMConfig> {
+    const config = getConfig();
+    const status = getStatus();
+    return {
+      config,
+      configurations: [
+        {
+          id: `${currentState}\u0000${headPositions.join(',')}\u0000${stepCount}`,
+          config,
+          transitionId: lastTransitionId,
+          path: lastTransitionId ? [lastTransitionId] : [],
+        },
+      ],
+      transitionIds,
+      acceptingPath: status === 'accepted' ? [...path] : undefined,
+      status,
+      stepIndex: stepCount,
+    };
+  }
 
+  function step(): StepResult<TMConfig> {
+    if (getStatus() !== 'running') return snapshot();
+    const transition = (transitionsByState.get(currentState) ?? []).find((candidate) =>
+      actionsFor(candidate).every((action, index) => (action.read || BLANK) === readTape(index)),
+    );
     if (!transition) {
       haltReason = 'no-transition';
       return snapshot();
     }
-
-    writeTape(transition.write || BLANK);
+    const actions = actionsFor(transition);
+    actions.forEach((action, index) => writeTape(index, action.write || BLANK));
+    actions.forEach((action, index) => {
+      if (action.move === 'R') headPositions[index] = headPositions[index]! + 1;
+      else if (action.move === 'L') headPositions[index] = headPositions[index]! - 1;
+      normalizeHead(index);
+    });
     currentState = transition.to;
-
-    if (transition.move === 'R') headPosition++;
-    else if (transition.move === 'L') headPosition--;
-
-    while (headPosition < 0) {
-      tape.unshift(BLANK);
-      headPosition++;
-    }
-    while (headPosition >= tape.length) {
-      tape.push(BLANK);
-    }
-
     stepCount++;
     path.push(transition.id);
     lastTransitionId = transition.id;
-
-    const state = statesById.get(currentState);
-    if (state?.isFinal && acceptByFinalState) {
-      haltReason = 'final-state';
-    }
-
+    if (statesById.get(currentState)?.isFinal && acceptByFinalState) haltReason = 'final-state';
     return snapshot([transition.id]);
   }
 
-  function snapshot(transitionIds: readonly string[] = []): StepResult<TMConfig> {
-    const config = getConfig();
-    const status = getStatus();
-    return {
-      config,
-      configurations: [{ id: `${currentState}\u0000${headPosition}\u0000${stepCount}`, config, transitionId: lastTransitionId, path: lastTransitionId ? [lastTransitionId] : [] }],
-      transitionIds,
-      acceptingPath: status === 'accepted' ? path : undefined,
-      status,
-      stepIndex: stepCount,
-    };
-  }
-
   function run(maxSteps = 10000): RunResult<TMConfig> {
     validateRunBudget(maxSteps);
     const steps: StepResult<TMConfig>[] = [];
@@ -149,30 +175,46 @@ export function createTMRunner(
     }
     const status = getStatus();
     const outcome = status === 'running' ? 'incomplete' : status;
-    return { accepted: outcome === 'accepted', outcome, incompleteReason: outcome === 'incomplete' ? 'step-limit' : undefined, steps, finalConfig: getConfig() };
+    return {
+      accepted: outcome === 'accepted',
+      outcome,
+      incompleteReason: outcome === 'incomplete' ? 'step-limit' : undefined,
+      steps,
+      finalConfig: getConfig(),
+    };
   }
 
   function reset() {
-    tape = [...initialTape];
-    headPosition = 0;
-    currentState = initialId;
+    tapes = initialTapes.map((tape) => [...tape]);
+    headPositions = Array.from({ length: automaton.tapes }, () => 0);
+    currentState = initialStateId;
     stepCount = 0;
-    haltReason = initialIsFinal && acceptByFinalState ? 'final-state' : null;
+    haltReason = initialStateIsFinal && acceptByFinalState ? 'final-state' : null;
     canceled = false;
     path = [];
     lastTransitionId = undefined;
   }
 
-  function cancel() { canceled = true; }
+  function cancel() {
+    canceled = true;
+  }
 
   return {
     step,
     run,
     reset,
     cancel,
-    get isHalted() { return getStatus() !== 'running'; },
-    get isAccepted() { return getStatus() === 'accepted'; },
-    get currentConfig() { return getConfig(); },
-    get currentStep() { return snapshot(); },
+    get isHalted() {
+      return getStatus() !== 'running';
+    },
+    get isAccepted() {
+      return getStatus() === 'accepted';
+    },
+    get currentConfig() {
+      return getConfig();
+    },
+    get currentStep() {
+      return snapshot();
+    },
   };
 }
diff --git a/packages/ui/src/components/InspectorPanel.vue b/packages/ui/src/components/InspectorPanel.vue
index 3fa8c2b..0a460d4 100644
--- a/packages/ui/src/components/InspectorPanel.vue
+++ b/packages/ui/src/components/InspectorPanel.vue
@@ -79,8 +79,16 @@ watch(
       d.push = t.push;
     }
     if ('write' in t && 'move' in t) {
-      d.write = t.write;
-      d.move = t.move;
+      if (t.tapeActions) {
+        for (const [index, action] of t.tapeActions.entries()) {
+          d[`tape${index}.read`] = action.read;
+          d[`tape${index}.write`] = action.write;
+          d[`tape${index}.move`] = action.move;
+        }
+      } else {
+        d.write = t.write;
+        d.move = t.move;
+      }
     }
     transitionDraft.value = d;
   },
@@ -95,7 +103,7 @@ watch(
     const input =
       target.type === 'state'
         ? stateNameInput.value
-        : transitionInputRefs.get(target.field) ?? transitionInputRefs.get('read') ?? null;
+        : (transitionInputRefs.get(target.field) ?? transitionInputRefs.get('read') ?? null);
     input?.focus();
     input?.select();
   },
@@ -117,6 +125,14 @@ const hasPendingTransitionEdits = computed(() => {
   const t = selectedTransition.value;
   const d = transitionDraft.value;
   if (!t || !d) return false;
+  if ('write' in t && t.tapeActions) {
+    return t.tapeActions.some(
+      (action, index) =>
+        d[`tape${index}.read`] !== action.read ||
+        d[`tape${index}.write`] !== action.write ||
+        d[`tape${index}.move`] !== action.move,
+    );
+  }
   for (const [key, value] of Object.entries(d)) {
     const cur = (t as unknown as Record<string, string>)[key];
     if (cur !== value) return true;
@@ -168,6 +184,22 @@ function applyTransitionEdits() {
 
   const oldProps: Partial<Omit<AnyTransition, 'id'>> = {};
   const newProps: Partial<Omit<AnyTransition, 'id'>> = {};
+  if ('write' in t && t.tapeActions) {
+    const tapeActions = t.tapeActions.map((action, index) => ({
+      read: draft[`tape${index}.read`] ?? action.read,
+      write: draft[`tape${index}.write`] ?? action.write,
+      move: (draft[`tape${index}.move`] ?? action.move) as 'L' | 'R' | 'S',
+    }));
+    Object.assign(oldProps, {
+      read: t.read,
+      write: t.write,
+      move: t.move,
+      tapeActions: t.tapeActions,
+    });
+    Object.assign(newProps, { ...tapeActions[0], tapeActions });
+    historyStore.dispatch(new UpdateTransitionCommand(t.id, oldProps, newProps));
+    return;
+  }
   const tRec = t as unknown as Record<string, string>;
   for (const [key, value] of Object.entries(draft)) {
     if (tRec[key] !== value) {
@@ -190,6 +222,13 @@ onBeforeUnmount(() => docStore.registerInspectorCommitter(null));
 const transitionFields = computed(() => {
   const t = selectedTransition.value;
   if (!t) return [];
+  if ('write' in t && t.tapeActions) {
+    return t.tapeActions.flatMap((_action, index) => [
+      { key: `tape${index}.read`, label: `Tape ${index + 1} read` },
+      { key: `tape${index}.write`, label: `Tape ${index + 1} write` },
+      { key: `tape${index}.move`, label: `Tape ${index + 1} move` },
+    ]);
+  }
   const fields: { key: string; label: string }[] = [{ key: 'read', label: 'Read' }];
   if ('pop' in t && 'push' in t) {
     fields.push({ key: 'pop', label: 'Pop' });
@@ -364,7 +403,10 @@ const transitionFields = computed(() => {
   font-size: 13px;
   font-weight: 600;
   cursor: pointer;
-  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
+  transition:
+    background 0.15s,
+    border-color 0.15s,
+    opacity 0.15s;
 }
 
 .inspector__apply:hover:not(:disabled) {
diff --git a/packages/ui/src/components/SemanticDiagramPanel.vue b/packages/ui/src/components/SemanticDiagramPanel.vue
index 944b9c2..b348c7d 100644
--- a/packages/ui/src/components/SemanticDiagramPanel.vue
+++ b/packages/ui/src/components/SemanticDiagramPanel.vue
@@ -1,6 +1,11 @@
 <script setup lang="ts">
 import { computed, ref } from 'vue';
-import { AddStateCommand, AddTransitionCommand, generateStateId, generateTransitionId } from '@jauto/core';
+import {
+  AddStateCommand,
+  AddTransitionCommand,
+  generateStateId,
+  generateTransitionId,
+} from '@jauto/core';
 import { useDocumentStore } from '../stores/document';
 import { useHistoryStore } from '../stores/history';
 
@@ -31,11 +36,25 @@ function addTransition() {
   if (!canAddTransition.value) return;
   const id = generateTransitionId(document.automaton.transitions);
   const common = { id, from: fromId.value, to: toId.value, read: '' };
-  const transition = document.automaton.kind === 'pda'
-    ? { ...common, pop: '', push: '' }
-    : document.automaton.kind === 'turing'
-      ? { ...common, write: '', move: 'R' as const }
-      : common;
+  const transition =
+    document.automaton.kind === 'pda'
+      ? { ...common, pop: '', push: '' }
+      : document.automaton.kind === 'turing'
+        ? {
+            ...common,
+            write: '',
+            move: 'R' as const,
+            ...(document.automaton.tapes > 1
+              ? {
+                  tapeActions: Array.from({ length: document.automaton.tapes }, () => ({
+                    read: '',
+                    write: '',
+                    move: 'R' as const,
+                  })),
+                }
+              : {}),
+          }
+        : common;
   history.dispatch(new AddTransitionCommand(transition));
   document.select({ type: 'transition', id });
   statusMessage.value = 'Added transition. Use the inspector to edit its symbols.';
@@ -53,13 +72,30 @@ function addTransition() {
         </div>
         <p v-if="!document.automaton.states.length">No states.</p>
         <table v-else>
-          <thead><tr><th>Name</th><th>Role</th><th>Position</th><th>Action</th></tr></thead>
+          <thead>
+            <tr>
+              <th>Name</th>
+              <th>Role</th>
+              <th>Position</th>
+              <th>Action</th>
+            </tr>
+          </thead>
           <tbody>
             <tr v-for="state in document.automaton.states" :key="state.id">
               <td>{{ state.name }}</td>
-              <td>{{ [state.isInitial ? 'initial' : '', state.isFinal ? 'final' : ''].filter(Boolean).join(', ') || 'regular' }}</td>
+              <td>
+                {{
+                  [state.isInitial ? 'initial' : '', state.isFinal ? 'final' : '']
+                    .filter(Boolean)
+                    .join(', ') || 'regular'
+                }}
+              </td>
               <td>{{ Math.round(state.x) }}, {{ Math.round(state.y) }}</td>
-              <td><button type="button" @click="document.select({ type: 'state', id: state.id })">Select {{ state.name }}</button></td>
+              <td>
+                <button type="button" @click="document.select({ type: 'state', id: state.id })">
+                  Select {{ state.name }}
+                </button>
+              </td>
             </tr>
           </tbody>
         </table>
@@ -67,15 +103,35 @@ function addTransition() {
       <section aria-labelledby="transitions-heading">
         <div class="diagram-outline__heading"><h2 id="transitions-heading">Transitions</h2></div>
         <form class="diagram-outline__add-transition" @submit.prevent="addTransition">
-          <label>From <select v-model="fromId"><option value="">Choose state</option><option v-for="state in document.automaton.states" :key="state.id" :value="state.id">{{ state.name }}</option></select></label>
-          <label>To <select v-model="toId"><option value="">Choose state</option><option v-for="state in document.automaton.states" :key="state.id" :value="state.id">{{ state.name }}</option></select></label>
+          <label
+            >From
+            <select v-model="fromId">
+              <option value="">Choose state</option>
+              <option v-for="state in document.automaton.states" :key="state.id" :value="state.id">
+                {{ state.name }}
+              </option>
+            </select></label
+          >
+          <label
+            >To
+            <select v-model="toId">
+              <option value="">Choose state</option>
+              <option v-for="state in document.automaton.states" :key="state.id" :value="state.id">
+                {{ state.name }}
+              </option>
+            </select></label
+          >
           <button type="submit" :disabled="!canAddTransition">Add transition</button>
         </form>
         <ul class="diagram-outline__transitions">
           <li v-for="transition in document.automaton.transitions" :key="transition.id">
-            <button type="button" @click="document.select({ type: 'transition', id: transition.id })">
+            <button
+              type="button"
+              @click="document.select({ type: 'transition', id: transition.id })"
+            >
               {{ document.automaton.states.find((state) => state.id === transition.from)?.name }} to
-              {{ document.automaton.states.find((state) => state.id === transition.to)?.name }}, read {{ transition.read || 'ε' }}
+              {{ document.automaton.states.find((state) => state.id === transition.to)?.name }},
+              read {{ transition.read || 'ε' }}
             </button>
           </li>
         </ul>
@@ -86,19 +142,93 @@ function addTransition() {
 </template>
 
 <style scoped>
-.diagram-outline { border-bottom: 1px solid var(--color-border); background: var(--color-bg-secondary); font-size: 12px; }
-.diagram-outline > summary { padding: 7px 12px; cursor: pointer; font-weight: 600; }
-.diagram-outline__content { display: grid; grid-template-columns: minmax(280px, 1fr) minmax(280px, 1fr); gap: 16px; max-height: 250px; padding: 4px 12px 12px; overflow: auto; }
-.diagram-outline__heading { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
-.diagram-outline h2 { margin: 4px 0; font-size: 13px; }
-.diagram-outline table { width: 100%; border-collapse: collapse; }
-.diagram-outline th, .diagram-outline td { padding: 4px; border-bottom: 1px solid var(--color-border); text-align: left; }
-.diagram-outline button, .diagram-outline select { min-height: 30px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-bg); color: var(--color-text); }
-.diagram-outline button { padding: 4px 8px; cursor: pointer; }
-.diagram-outline button:focus-visible, .diagram-outline select:focus-visible, .diagram-outline > summary:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
-.diagram-outline__add-transition { display: flex; flex-wrap: wrap; align-items: end; gap: 8px; }
-.diagram-outline__add-transition label { display: grid; gap: 3px; }
-.diagram-outline__transitions { display: flex; flex-wrap: wrap; gap: 5px; padding: 6px 0; list-style: none; }
-.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
-@media (max-width: 760px) { .diagram-outline__content { grid-template-columns: 1fr; } }
+.diagram-outline {
+  border-bottom: 1px solid var(--color-border);
+  background: var(--color-bg-secondary);
+  font-size: 12px;
+}
+.diagram-outline > summary {
+  padding: 7px 12px;
+  cursor: pointer;
+  font-weight: 600;
+}
+.diagram-outline__content {
+  display: grid;
+  grid-template-columns: minmax(280px, 1fr) minmax(280px, 1fr);
+  gap: 16px;
+  max-height: 250px;
+  padding: 4px 12px 12px;
+  overflow: auto;
+}
+.diagram-outline__heading {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 8px;
+}
+.diagram-outline h2 {
+  margin: 4px 0;
+  font-size: 13px;
+}
+.diagram-outline table {
+  width: 100%;
+  border-collapse: collapse;
+}
+.diagram-outline th,
+.diagram-outline td {
+  padding: 4px;
+  border-bottom: 1px solid var(--color-border);
+  text-align: left;
+}
+.diagram-outline button,
+.diagram-outline select {
+  min-height: 30px;
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-sm);
+  background: var(--color-bg);
+  color: var(--color-text);
+}
+.diagram-outline button {
+  padding: 4px 8px;
+  cursor: pointer;
+}
+.diagram-outline button:focus-visible,
+.diagram-outline select:focus-visible,
+.diagram-outline > summary:focus-visible {
+  outline: 2px solid var(--color-primary);
+  outline-offset: 2px;
+}
+.diagram-outline__add-transition {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: end;
+  gap: 8px;
+}
+.diagram-outline__add-transition label {
+  display: grid;
+  gap: 3px;
+}
+.diagram-outline__transitions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 5px;
+  padding: 6px 0;
+  list-style: none;
+}
+.sr-only {
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  padding: 0;
+  margin: -1px;
+  overflow: hidden;
+  clip: rect(0, 0, 0, 0);
+  white-space: nowrap;
+  border: 0;
+}
+@media (max-width: 760px) {
+  .diagram-outline__content {
+    grid-template-columns: 1fr;
+  }
+}
 </style>
diff --git a/packages/ui/src/components/SimulationControls.vue b/packages/ui/src/components/SimulationControls.vue
index ef26bed..39b2590 100644
--- a/packages/ui/src/components/SimulationControls.vue
+++ b/packages/ui/src/components/SimulationControls.vue
@@ -82,25 +82,23 @@ function remainingText(config: Record<string, unknown>): string {
         >
           <Play :size="13" /> Play
         </button>
-        <button
-          v-if="sim.isRunning"
-          class="sim-controls__btn"
-          @click="sim.pause()"
-        >
+        <button v-if="sim.isRunning" class="sim-controls__btn" @click="sim.pause()">
           <Pause :size="13" /> Pause
         </button>
         <button class="sim-controls__btn" @click="handleReset">
           <RotateCcw :size="13" /> Reset
         </button>
-        <button class="sim-controls__btn" @click="sim.stop()">
-          <Square :size="13" /> Stop
-        </button>
+        <button class="sim-controls__btn" @click="sim.stop()"><Square :size="13" /> Stop</button>
       </template>
     </div>
     <div v-if="sim.isActive" class="sim-controls__status">
       <span class="sim-controls__step">Step {{ sim.stepIndex }}</span>
       <span v-if="sim.transitionHighlights.length" class="sim-controls__detail">
-        {{ sim.transitionHighlights.map((transition) => `${transition.transitionId}: ${transition.label}`).join(' | ') }}
+        {{
+          sim.transitionHighlights
+            .map((transition) => `${transition.transitionId}: ${transition.label}`)
+            .join(' | ')
+        }}
       </span>
       <span
         class="sim-controls__result"
@@ -109,16 +107,29 @@ function remainingText(config: Record<string, unknown>): string {
           'sim-controls__result--rejected': sim.status !== 'running' && sim.status !== 'accepted',
         }"
       >
-        {{ sim.status === 'running' ? 'Running...' :
-           sim.status === 'accepted' ? 'Accepted' :
-           sim.status === 'halted' ? 'Halted' :
-           sim.status === 'invalid' ? 'Invalid machine' :
-           sim.status === 'incomplete' ? 'Incomplete' :
-           sim.status === 'canceled' ? 'Canceled' : 'Rejected' }}
+        {{
+          sim.status === 'running'
+            ? 'Running...'
+            : sim.status === 'accepted'
+              ? 'Accepted'
+              : sim.status === 'halted'
+                ? 'Halted'
+                : sim.status === 'invalid'
+                  ? 'Invalid machine'
+                  : sim.status === 'incomplete'
+                    ? 'Incomplete'
+                    : sim.status === 'canceled'
+                      ? 'Canceled'
+                      : 'Rejected'
+        }}
       </span>
       <span v-if="sim.errorMessage" class="sim-controls__detail">{{ sim.errorMessage }}</span>
     </div>
-    <div v-if="sim.isActive && sim.activeConfigurations.length" class="sim-controls__trace" aria-live="polite">
+    <div
+      v-if="sim.isActive && sim.activeConfigurations.length"
+      class="sim-controls__trace"
+      aria-live="polite"
+    >
       <div class="sim-controls__trace-title">
         Active configurations ({{ sim.activeConfigurations.length }})
         <span v-if="sim.activeTraceIndex < sim.executionIndex">
@@ -126,18 +137,47 @@ function remainingText(config: Record<string, unknown>): string {
         </span>
       </div>
       <div class="sim-controls__branches">
-        <div v-for="branch in sim.activeConfigurations" :key="branch.id" class="sim-controls__branch">
+        <div
+          v-for="branch in sim.activeConfigurations"
+          :key="branch.id"
+          class="sim-controls__branch"
+        >
           <strong>{{ branch.id }}</strong>
           <span>state {{ stateText(branch.config) }}</span>
-          <span v-if="'inputIndex' in branch.config">consumed {{ consumedText(branch.config) }} · remaining {{ remainingText(branch.config) }}</span>
-          <span v-if="Array.isArray(branch.config.stack)">stack [{{ branch.config.stack.join(', ') }}]</span>
+          <span v-if="'inputIndex' in branch.config"
+            >consumed {{ consumedText(branch.config) }} · remaining
+            {{ remainingText(branch.config) }}</span
+          >
+          <span v-if="Array.isArray(branch.config.stack)"
+            >stack [{{ branch.config.stack.join(', ') }}]</span
+          >
           <span v-if="Array.isArray(branch.config.tape)" class="sim-controls__tape">
             tape
             <template v-for="(symbol, index) in branch.config.tape" :key="index">
-              <b :class="{ 'sim-controls__head': index === branch.config.headPosition }">{{ symbol }}</b>
+              <b :class="{ 'sim-controls__head': index === branch.config.headPosition }">{{
+                symbol
+              }}</b>
             </template>
           </span>
-          <span>via {{ branch.path.length ? branch.path.join(', ') : 'initial configuration' }}</span>
+          <span
+            v-for="(tape, tapeIndex) in (branch.config.tapes ?? []).slice(1)"
+            :key="tapeIndex"
+            class="sim-controls__tape"
+          >
+            tape {{ Number(tapeIndex) + 2 }}
+            <template v-for="(symbol, index) in tape" :key="index">
+              <b
+                :class="{
+                  'sim-controls__head':
+                    index === branch.config.headPositions[Number(tapeIndex) + 1],
+                }"
+                >{{ symbol }}</b
+              >
+            </template>
+          </span>
+          <span
+            >via {{ branch.path.length ? branch.path.join(', ') : 'initial configuration' }}</span
+          >
         </div>
       </div>
       <div v-if="sim.acceptingPath.length" class="sim-controls__witness">
@@ -158,14 +198,24 @@ function remainingText(config: Record<string, unknown>): string {
     </div>
     <details v-if="!sim.isActive" class="sim-controls__batch">
       <summary>Batch input testing</summary>
-      <label class="sim-controls__label" for="batch-inputs">One input per line (a blank line tests ε)</label>
+      <label class="sim-controls__label" for="batch-inputs"
+        >One input per line (a blank line tests ε)</label
+      >
       <textarea id="batch-inputs" v-model="sim.batchInput" rows="4" class="sim-controls__input" />
       <button class="sim-controls__btn" @click="sim.runBatch(docStore.automaton)">Run batch</button>
       <table v-if="sim.batchResults.length" class="sim-controls__results">
-        <thead><tr><th>Input</th><th>Outcome</th><th>Steps</th></tr></thead>
+        <thead>
+          <tr>
+            <th>Input</th>
+            <th>Outcome</th>
+            <th>Steps</th>
+          </tr>
+        </thead>
         <tbody>
           <tr v-for="(result, index) in sim.batchResults" :key="`${index}:${result.input}`">
-            <td>{{ result.input || 'ε' }}</td><td>{{ result.outcome }}</td><td>{{ result.steps }}</td>
+            <td>{{ result.input || 'ε' }}</td>
+            <td>{{ result.outcome }}</td>
+            <td>{{ result.steps }}</td>
           </tr>
         </tbody>
       </table>
diff --git a/packages/ui/src/composables/useCanvasRenderer.ts b/packages/ui/src/composables/useCanvasRenderer.ts
index ccbb0f6..01a2c47 100644
--- a/packages/ui/src/composables/useCanvasRenderer.ts
+++ b/packages/ui/src/composables/useCanvasRenderer.ts
@@ -2,10 +2,7 @@ import type { AnyAutomaton, AutomatonState, AnyTransition } from '@jauto/core';
 import type { SelectedElement } from '../stores/document';
 import type { TransitionHighlight } from '../stores/simulation';
 import { STATE_RADIUS } from '../constants';
-import {
-  getEdgeGeometry,
-  getSelfLoopGeometry,
-} from './transitionGeometry';
+import { getEdgeGeometry, getSelfLoopGeometry } from './transitionGeometry';
 import { buildRenderIndex, transitionGroupKey } from './renderIndex';
 
 const ARROW_SIZE = 6;
@@ -41,9 +38,19 @@ export function useCanvasRenderer() {
     options: RenderOptions,
   ) {
     frameCssCache = new Map();
-    const { offsetX, offsetY, scale, selected, highlightedStates, activeTransitions = [] } = options;
-
-    const canvasBg = options.background === undefined ? readCssVar('--color-canvas-bg', '#111111') : options.background;
+    const {
+      offsetX,
+      offsetY,
+      scale,
+      selected,
+      highlightedStates,
+      activeTransitions = [],
+    } = options;
+
+    const canvasBg =
+      options.background === undefined
+        ? readCssVar('--color-canvas-bg', '#111111')
+        : options.background;
     const gridColor = readCssVar('--color-canvas-grid', '#1a1a1a');
     const fontSans = readCssVar('--font-family', 'DM Sans, system-ui, sans-serif');
 
@@ -53,7 +60,8 @@ export function useCanvasRenderer() {
       ctx.fillRect(0, 0, width, height);
     }
 
-    if (options.showGrid !== false) drawGrid(ctx, width, height, offsetX, offsetY, scale, gridColor);
+    if (options.showGrid !== false)
+      drawGrid(ctx, width, height, offsetX, offsetY, scale, gridColor);
 
     ctx.save();
     ctx.translate(offsetX, offsetY);
@@ -62,10 +70,10 @@ export function useCanvasRenderer() {
     const { statesById, transitionGroups } = buildRenderIndex(automaton);
     const margin = 100 / scale;
     const visible = {
-      minX: (-offsetX / scale) - margin,
-      minY: (-offsetY / scale) - margin,
-      maxX: ((width - offsetX) / scale) + margin,
-      maxY: ((height - offsetY) / scale) + margin,
+      minX: -offsetX / scale - margin,
+      minY: -offsetY / scale - margin,
+      maxX: (width - offsetX) / scale + margin,
+      maxY: (height - offsetY) / scale + margin,
     };
 
     for (const t of automaton.transitions) {
@@ -74,16 +82,32 @@ export function useCanvasRenderer() {
       if (!from || !to) continue;
       const controlX = typeof t.controlX === 'number' ? t.controlX : (from.x + to.x) / 2;
       const controlY = typeof t.controlY === 'number' ? t.controlY : (from.y + to.y) / 2;
-      if (!boundsIntersectViewport([from.x, to.x, controlX], [from.y, to.y, controlY], visible)) continue;
+      if (!boundsIntersectViewport([from.x, to.x, controlX], [from.y, to.y, controlY], visible))
+        continue;
 
       const isSelected = selected?.type === 'transition' && selected.id === t.id;
       const isActiveTransition = activeTransitions.some((active) => active.transitionId === t.id);
       const groupKey = transitionGroupKey(t.from, t.to);
-      drawTransition(ctx, from, to, t, transitionGroups.get(groupKey) ?? [t], isSelected, isActiveTransition, fontSans);
+      drawTransition(
+        ctx,
+        from,
+        to,
+        t,
+        transitionGroups.get(groupKey) ?? [t],
+        isSelected,
+        isActiveTransition,
+        fontSans,
+      );
     }
 
     for (const state of automaton.states) {
-      if (state.x < visible.minX || state.x > visible.maxX || state.y < visible.minY || state.y > visible.maxY) continue;
+      if (
+        state.x < visible.minX ||
+        state.x > visible.maxX ||
+        state.y < visible.minY ||
+        state.y > visible.maxY
+      )
+        continue;
       const isSelected = selected?.type === 'state' && selected.id === state.id;
       const isHighlighted = highlightedStates?.has(state.id) ?? false;
       const simulationRole = getSimulationStateRole(state.id, activeTransitions);
@@ -110,8 +134,12 @@ export function useCanvasRenderer() {
     ys: readonly number[],
     viewport: { minX: number; minY: number; maxX: number; maxY: number },
   ) {
-    return Math.max(...xs) >= viewport.minX && Math.min(...xs) <= viewport.maxX &&
-      Math.max(...ys) >= viewport.minY && Math.min(...ys) <= viewport.maxY;
+    return (
+      Math.max(...xs) >= viewport.minX &&
+      Math.min(...xs) <= viewport.maxX &&
+      Math.max(...ys) >= viewport.minY &&
+      Math.min(...ys) <= viewport.maxY
+    );
   }
 
   function drawGrid(
@@ -186,7 +214,11 @@ export function useCanvasRenderer() {
 
     ctx.beginPath();
     ctx.arc(x, y, STATE_RADIUS, 0, Math.PI * 2);
-    ctx.fillStyle = roleColor ? colorWithAlpha(roleColor, 0.16) : isHighlighted ? hlFill : stateFill;
+    ctx.fillStyle = roleColor
+      ? colorWithAlpha(roleColor, 0.16)
+      : isHighlighted
+        ? hlFill
+        : stateFill;
     ctx.fill();
     ctx.strokeStyle = roleColor ?? (isHighlighted || isSelected ? accent : strokeMain);
     ctx.lineWidth = roleColor ? 3.5 : isHighlighted ? 3 : isSelected ? 2.5 : 1.5;
@@ -253,15 +285,7 @@ export function useCanvasRenderer() {
     ctx.fillStyle = isActiveTransition ? simulationEdge : isSelected ? accent : strokeDefault;
 
     if (from.id === to.id) {
-      drawSelfLoop(
-        ctx,
-        from,
-        transition,
-        siblings,
-        fontSans,
-        isSelected,
-        isActiveTransition,
-      );
+      drawSelfLoop(ctx, from, transition, siblings, fontSans, isSelected, isActiveTransition);
       return;
     }
 
@@ -413,8 +437,12 @@ export function useCanvasRenderer() {
       return `${read}, ${pop} \u2192 ${push}`;
     }
     if ('write' in t && 'move' in t) {
-      const write = t.write || '\u25A1';
-      return `${read} \u2192 ${write}, ${t.move}`;
+      return (t.tapeActions ?? [t])
+        .map(
+          (action, index) =>
+            `${t.tapeActions ? `${index + 1}:` : ''}${action.read || '\u25A1'} \u2192 ${action.write || '\u25A1'}, ${action.move}`,
+        )
+        .join(' | ');
     }
     return read;
   }
diff --git a/packages/ui/src/composables/useInteractionManager.ts b/packages/ui/src/composables/useInteractionManager.ts
index c0cd9b4..bc4a60e 100644
--- a/packages/ui/src/composables/useInteractionManager.ts
+++ b/packages/ui/src/composables/useInteractionManager.ts
@@ -157,7 +157,10 @@ export function useInteractionManager(
 
     if (isDragging.value && dragStateId.value) {
       docStore.previewAutomaton(
-        updateState(docStore.automaton, dragStateId.value, { x: x - dragOffsetX.value, y: y - dragOffsetY.value }) as AnyAutomaton,
+        updateState(docStore.automaton, dragStateId.value, {
+          x: x - dragOffsetX.value,
+          y: y - dragOffsetY.value,
+        }) as AnyAutomaton,
       );
     }
 
@@ -198,9 +201,32 @@ export function useInteractionManager(
         const id = generateTransitionId(docStore.automaton.transitions);
         let transition;
         if (kind === 'pda') {
-          transition = { id, from: transitionSourceId.value, to: targetState.id, read: '', pop: '', push: '' };
+          transition = {
+            id,
+            from: transitionSourceId.value,
+            to: targetState.id,
+            read: '',
+            pop: '',
+            push: '',
+          };
         } else if (kind === 'turing') {
-          transition = { id, from: transitionSourceId.value, to: targetState.id, read: '', write: '', move: 'R' as const };
+          transition = {
+            id,
+            from: transitionSourceId.value,
+            to: targetState.id,
+            read: '',
+            write: '',
+            move: 'R' as const,
+            ...(docStore.automaton.tapes > 1
+              ? {
+                  tapeActions: Array.from({ length: docStore.automaton.tapes }, () => ({
+                    read: '',
+                    write: '',
+                    move: 'R' as const,
+                  })),
+                }
+              : {}),
+          };
         } else {
           transition = { id, from: transitionSourceId.value, to: targetState.id, read: '' };
         }
@@ -218,7 +244,10 @@ export function useInteractionManager(
   function cancelGesture() {
     if (isDragging.value && dragStateId.value) {
       docStore.previewAutomaton(
-        updateState(docStore.automaton, dragStateId.value, { x: dragStartX.value, y: dragStartY.value }) as AnyAutomaton,
+        updateState(docStore.automaton, dragStateId.value, {
+          x: dragStartX.value,
+          y: dragStartY.value,
+        }) as AnyAutomaton,
       );
     }
     isDragging.value = false;
diff --git a/packages/ui/src/stores/simulation.ts b/packages/ui/src/stores/simulation.ts
index 7b438a4..cc4b8db 100644
--- a/packages/ui/src/stores/simulation.ts
+++ b/packages/ui/src/stores/simulation.ts
@@ -1,7 +1,12 @@
 import { defineStore } from 'pinia';
 import { computed, ref, watch } from 'vue';
 import type { SimulationRunner, StepResult, SimulationStatus } from '@jauto/simulator';
-import { createDFARunner, createNFARunner, createPDARunner, createTMRunner } from '@jauto/simulator';
+import {
+  createDFARunner,
+  createNFARunner,
+  createPDARunner,
+  createTMRunner,
+} from '@jauto/simulator';
 import { isDeterministic } from '@jauto/core';
 import type { AnyAutomaton, AnyTransition, PushdownAutomaton, TuringMachine } from '@jauto/core';
 import { useDocumentStore } from './document';
@@ -47,7 +52,9 @@ export const useSimulationStore = defineStore('simulation', () => {
   function createRunnerFor(automaton: AnyAutomaton, inputStr: string) {
     switch (automaton.kind) {
       case 'fa':
-        return isDeterministic(automaton) ? createDFARunner(automaton, inputStr) : createNFARunner(automaton, inputStr);
+        return isDeterministic(automaton)
+          ? createDFARunner(automaton, inputStr)
+          : createNFARunner(automaton, inputStr);
       case 'pda':
         return createPDARunner(automaton as PushdownAutomaton, inputStr);
       case 'turing':
@@ -60,14 +67,21 @@ export const useSimulationStore = defineStore('simulation', () => {
   const transitionHighlights = computed<TransitionHighlight[]>(() => {
     if (!activeAutomaton || !activeSnapshot.value) return [];
     const ids = new Set(activeSnapshot.value.transitionIds);
-    return activeAutomaton.transitions.filter((transition) => ids.has(transition.id)).map(toHighlight);
+    return activeAutomaton.transitions
+      .filter((transition) => ids.has(transition.id))
+      .map(toHighlight);
   });
   const activeTransition = computed(() => transitionHighlights.value[0] ?? null);
   const activeConfigurations = computed(() => activeSnapshot.value?.configurations ?? []);
   const acceptingPath = computed(() => activeSnapshot.value?.acceptingPath ?? []);
 
   function toHighlight(transition: AnyTransition): TransitionHighlight {
-    return { transitionId: transition.id, sourceStateId: transition.from, targetStateId: transition.to, label: getTransitionLabel(transition) };
+    return {
+      transitionId: transition.id,
+      sourceStateId: transition.from,
+      targetStateId: transition.to,
+      label: getTransitionLabel(transition),
+    };
   }
 
   function displaySnapshot(index: number) {
@@ -79,7 +93,8 @@ export const useSimulationStore = defineStore('simulation', () => {
     const states = new Set<string>();
     for (const branch of snapshot.configurations) {
       const config = branch.config as Record<string, unknown>;
-      if (typeof config.currentState === 'string' && config.currentState) states.add(config.currentState);
+      if (typeof config.currentState === 'string' && config.currentState)
+        states.add(config.currentState);
       if (config.activeStates instanceof Set) {
         for (const state of config.activeStates) if (typeof state === 'string') states.add(state);
       }
@@ -136,7 +151,11 @@ export const useSimulationStore = defineStore('simulation', () => {
 
   function play(automaton: AnyAutomaton) {
     if (!runner) start(automaton);
-    if (!runner || (activeTraceIndex.value >= executionIndex.value && executionStatus !== 'running')) return;
+    if (
+      !runner ||
+      (activeTraceIndex.value >= executionIndex.value && executionStatus !== 'running')
+    )
+      return;
     activeAutomaton = automaton;
     isRunning.value = true;
     intervalId = setInterval(() => {
@@ -168,7 +187,9 @@ export const useSimulationStore = defineStore('simulation', () => {
     highlightedStates.value = new Set();
   }
 
-  function invalidate(message = 'The machine changed. Restart the simulation to use the new definition.') {
+  function invalidate(
+    message = 'The machine changed. Restart the simulation to use the new definition.',
+  ) {
     if (!runner) return;
     pause();
     runner.cancel();
@@ -184,20 +205,32 @@ export const useSimulationStore = defineStore('simulation', () => {
   }
 
   function runBatch(automaton: AnyAutomaton, maxSteps = 10000) {
-    batchResults.value = batchInput.value.split(/\r?\n/).map((value) => value.trim()).map((value) => {
-      try {
-        const batchRunner = createRunnerFor(automaton, value);
-        let result = batchRunner.currentStep;
-        let steps = 0;
-        while (result.status === 'running' && steps < maxSteps) {
-          result = batchRunner.step();
-          steps++;
+    batchResults.value = batchInput.value
+      .split(/\r?\n/)
+      .map((value) => value.trim())
+      .map((value) => {
+        try {
+          const batchRunner = createRunnerFor(automaton, value);
+          let result = batchRunner.currentStep;
+          let steps = 0;
+          while (result.status === 'running' && steps < maxSteps) {
+            result = batchRunner.step();
+            steps++;
+          }
+          return {
+            input: value,
+            outcome: result.status === 'running' ? ('incomplete' as const) : result.status,
+            steps,
+          };
+        } catch (error) {
+          return {
+            input: value,
+            outcome: 'invalid' as const,
+            steps: 0,
+            message: error instanceof Error ? error.message : String(error),
+          };
         }
-        return { input: value, outcome: result.status === 'running' ? 'incomplete' as const : result.status, steps };
-      } catch (error) {
-        return { input: value, outcome: 'invalid' as const, steps: 0, message: error instanceof Error ? error.message : String(error) };
-      }
-    });
+      });
   }
 
   watch(speed, () => {
@@ -209,38 +242,78 @@ export const useSimulationStore = defineStore('simulation', () => {
     }, speed.value);
   });
 
-  watch(() => document.automaton, (automaton) => {
-    if (!runner || activeSemanticSignature === null) return;
-    const nextSignature = semanticSignature(automaton);
-    if (nextSignature !== activeSemanticSignature) invalidate();
-    else activeAutomaton = automaton;
-  });
+  watch(
+    () => document.automaton,
+    (automaton) => {
+      if (!runner || activeSemanticSignature === null) return;
+      const nextSignature = semanticSignature(automaton);
+      if (nextSignature !== activeSemanticSignature) invalidate();
+      else activeAutomaton = automaton;
+    },
+  );
 
   const isActive = computed(() => status.value !== null);
   const canGoPrevious = computed(() => activeTraceIndex.value > 0);
-  const canGoNext = computed(() => activeTraceIndex.value < executionIndex.value || executionStatus === 'running');
+  const canGoNext = computed(
+    () => activeTraceIndex.value < executionIndex.value || executionStatus === 'running',
+  );
 
   function semanticSignature(automaton: AnyAutomaton): string {
     return JSON.stringify({
       kind: automaton.kind,
       tapes: automaton.kind === 'turing' ? automaton.tapes : undefined,
       states: automaton.states.map(({ x: _x, y: _y, ...state }) => state),
-      transitions: automaton.transitions.map(({ controlX: _controlX, controlY: _controlY, ...transition }) => transition),
+      transitions: automaton.transitions.map(
+        ({ controlX: _controlX, controlY: _controlY, ...transition }) => transition,
+      ),
     });
   }
 
   function getTransitionLabel(transition: AnyTransition): string {
     const read = transition.read || 'ε';
-    if ('pop' in transition && 'push' in transition) return `${read}, ${transition.pop || 'ε'} -> ${transition.push || 'ε'}`;
-    if ('write' in transition && 'move' in transition) return `${read} -> ${transition.write || '□'}, ${transition.move}`;
+    if ('pop' in transition && 'push' in transition)
+      return `${read}, ${transition.pop || 'ε'} -> ${transition.push || 'ε'}`;
+    if ('write' in transition && 'move' in transition) {
+      return (transition.tapeActions ?? [transition])
+        .map(
+          (action, index) =>
+            `${transition.tapeActions ? `T${index + 1}: ` : ''}${action.read || '□'} -> ${action.write || '□'}, ${action.move}`,
+        )
+        .join(' | ');
+    }
     return read;
   }
 
   return {
-    input, isRunning, isActive, status, errorMessage, stepIndex, highlightedStates,
-    activeTransition, activeConfigurations, activeSnapshot, acceptingPath,
-    activeTraceIndex, executionIndex, transitionHighlights, canGoPrevious, canGoNext,
-    speed, traceSteps, batchInput, batchResults, start, step: (_automaton: AnyAutomaton) => executeStep(), nextStep,
-    previousStep, play, pause, stop, invalidate, reset, runBatch,
+    input,
+    isRunning,
+    isActive,
+    status,
+    errorMessage,
+    stepIndex,
+    highlightedStates,
+    activeTransition,
+    activeConfigurations,
+    activeSnapshot,
+    acceptingPath,
+    activeTraceIndex,
+    executionIndex,
+    transitionHighlights,
+    canGoPrevious,
+    canGoNext,
+    speed,
+    traceSteps,
+    batchInput,
+    batchResults,
+    start,
+    step: (_automaton: AnyAutomaton) => executeStep(),
+    nextStep,
+    previousStep,
+    play,
+    pause,
+    stop,
+    invalidate,
+    reset,
+    runBatch,
   };
 });
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 25facd9..a39c3f0 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -9,7 +9,6 @@ overrides:
   nanoid@<3.3.18: '>=3.3.18'
 
 importers:
-
   .:
     devDependencies:
       '@eslint/js':
@@ -166,6 +165,9 @@ importers:
         specifier: ^5.8.0
         version: 5.8.0
     devDependencies:
+      '@jauto/simulator':
+        specifier: workspace:*
+        version: link:../simulator
       typescript:
         specifier: ^6.0.3
         version: 6.0.3
@@ -227,62 +229,97 @@ importers:
         version: 3.3.3(typescript@6.0.3)
 
 packages:
-
   '@asamuzakjp/css-color@6.0.7':
-    resolution: {integrity: sha512-vC/bk1Lz7Tn/EfU9/apOTBk80/8dyGyWMowPoV1tJ52muDGsDqt2HPT2klrFUiY60MQmQv9q8yIht15JnBgDGw==}
-    engines: {node: ^22.13.0 || >=24.0.0}
+    resolution:
+      {
+        integrity: sha512-vC/bk1Lz7Tn/EfU9/apOTBk80/8dyGyWMowPoV1tJ52muDGsDqt2HPT2klrFUiY60MQmQv9q8yIht15JnBgDGw==,
+      }
+    engines: { node: ^22.13.0 || >=24.0.0 }
 
   '@asamuzakjp/dom-selector@8.3.2':
-    resolution: {integrity: sha512-93Z1N+BQNXysodoicpOIyNh2drHfz/CTf9nnT0FEx72GJcIiwgydD7tGAr78j41LsYn3hlRn+LdGPuBLn1Bl8Q==}
-    engines: {node: ^22.13.0 || >=24.0.0}
+    resolution:
+      {
+        integrity: sha512-93Z1N+BQNXysodoicpOIyNh2drHfz/CTf9nnT0FEx72GJcIiwgydD7tGAr78j41LsYn3hlRn+LdGPuBLn1Bl8Q==,
+      }
+    engines: { node: ^22.13.0 || >=24.0.0 }
 
   '@babel/helper-string-parser@7.29.7':
-    resolution: {integrity: sha512-Pb5ijPrZ89GDH8223L4UP8i6QApWxs04RbPQJTeWDV0/keR2E36MeKnyr6LYmUUvqRRI+Iv87SuF1W6ErINzYw==}
-    engines: {node: '>=6.9.0'}
+    resolution:
+      {
+        integrity: sha512-Pb5ijPrZ89GDH8223L4UP8i6QApWxs04RbPQJTeWDV0/keR2E36MeKnyr6LYmUUvqRRI+Iv87SuF1W6ErINzYw==,
+      }
+    engines: { node: '>=6.9.0' }
 
   '@babel/helper-validator-identifier@7.29.7':
-    resolution: {integrity: sha512-qehxGkRj55h/ff8EMaJ+cYhyaKlHIxqYDn682wQD7RNp9UujOQsHog2uS0r2vzr4pW+sXf90NeeayjcNaX3fFg==}
-    engines: {node: '>=6.9.0'}
+    resolution:
+      {
+        integrity: sha512-qehxGkRj55h/ff8EMaJ+cYhyaKlHIxqYDn682wQD7RNp9UujOQsHog2uS0r2vzr4pW+sXf90NeeayjcNaX3fFg==,
+      }
+    engines: { node: '>=6.9.0' }
 
   '@babel/parser@7.29.7':
-    resolution: {integrity: sha512-hnORnjP/1P/zFEndoeX+n+t1RwWRJiJpM/jO7FW32Kn9r5+sJB2JWOdYo4L6k78j15eCwY3Gm/7364B1EMwtNg==}
-    engines: {node: '>=6.0.0'}
+    resolution:
+      {
+        integrity: sha512-hnORnjP/1P/zFEndoeX+n+t1RwWRJiJpM/jO7FW32Kn9r5+sJB2JWOdYo4L6k78j15eCwY3Gm/7364B1EMwtNg==,
+      }
+    engines: { node: '>=6.0.0' }
     hasBin: true
 
   '@babel/types@7.29.7':
-    resolution: {integrity: sha512-4zBIxpPzowiZpusoFkyGVwakdRJUyuH5PxQ/PrqghfdFWWasvnCdPfQXHrenDai+gyLARulZjZowCOj6fjT4pA==}
-    engines: {node: '>=6.9.0'}
+    resolution:
+      {
+        integrity: sha512-4zBIxpPzowiZpusoFkyGVwakdRJUyuH5PxQ/PrqghfdFWWasvnCdPfQXHrenDai+gyLARulZjZowCOj6fjT4pA==,
+      }
+    engines: { node: '>=6.9.0' }
 
   '@bramus/specificity@2.4.2':
-    resolution: {integrity: sha512-ctxtJ/eA+t+6q2++vj5j7FYX3nRu311q1wfYH3xjlLOsczhlhxAg2FWNUXhpGvAw3BWo1xBcvOV6/YLc2r5FJw==}
+    resolution:
+      {
+        integrity: sha512-ctxtJ/eA+t+6q2++vj5j7FYX3nRu311q1wfYH3xjlLOsczhlhxAg2FWNUXhpGvAw3BWo1xBcvOV6/YLc2r5FJw==,
+      }
     hasBin: true
 
   '@csstools/color-helpers@6.1.1':
-    resolution: {integrity: sha512-gLNsunvwf3mCi5u5o46/Z/JcJMnhbHSaZ69rkgPzNM3J4s8hWwpPUQB6/tt0EDFyCiWzxANlx+2LJwpYj4zS1w==}
-    engines: {node: '>=20.19.0'}
+    resolution:
+      {
+        integrity: sha512-gLNsunvwf3mCi5u5o46/Z/JcJMnhbHSaZ69rkgPzNM3J4s8hWwpPUQB6/tt0EDFyCiWzxANlx+2LJwpYj4zS1w==,
+      }
+    engines: { node: '>=20.19.0' }
 
   '@csstools/css-calc@3.3.0':
-    resolution: {integrity: sha512-c5ihYsPkdG6JCkU2zTMm4+k6r7RXuGxtWYhu5DHMIiF1FHzrfmHL5so11AoFpUv/tu61xfcmT4AmKoFfMPoqdQ==}
-    engines: {node: '>=20.19.0'}
+    resolution:
+      {
+        integrity: sha512-c5ihYsPkdG6JCkU2zTMm4+k6r7RXuGxtWYhu5DHMIiF1FHzrfmHL5so11AoFpUv/tu61xfcmT4AmKoFfMPoqdQ==,
+      }
+    engines: { node: '>=20.19.0' }
     peerDependencies:
       '@csstools/css-parser-algorithms': ^4.0.0
       '@csstools/css-tokenizer': ^4.0.0
 
   '@csstools/css-color-parser@4.2.2':
-    resolution: {integrity: sha512-3QKjR/vxyjcSXBLgb6lP0S3MGdvwbmqSsvLPbYdVORqPDc8FX1HAJ0Spk38bxaRXgvENTA47tlhhbb5Z2e8hEg==}
-    engines: {node: '>=20.19.0'}
+    resolution:
+      {
+        integrity: sha512-3QKjR/vxyjcSXBLgb6lP0S3MGdvwbmqSsvLPbYdVORqPDc8FX1HAJ0Spk38bxaRXgvENTA47tlhhbb5Z2e8hEg==,
+      }
+    engines: { node: '>=20.19.0' }
     peerDependencies:
       '@csstools/css-parser-algorithms': ^4.0.0
       '@csstools/css-tokenizer': ^4.0.0
 
   '@csstools/css-parser-algorithms@4.0.0':
-    resolution: {integrity: sha512-+B87qS7fIG3L5h3qwJ/IFbjoVoOe/bpOdh9hAjXbvx0o8ImEmUsGXN0inFOnk2ChCFgqkkGFQ+TpM5rbhkKe4w==}
-    engines: {node: '>=20.19.0'}
+    resolution:
+      {
+        integrity: sha512-+B87qS7fIG3L5h3qwJ/IFbjoVoOe/bpOdh9hAjXbvx0o8ImEmUsGXN0inFOnk2ChCFgqkkGFQ+TpM5rbhkKe4w==,
+      }
+    engines: { node: '>=20.19.0' }
     peerDependencies:
       '@csstools/css-tokenizer': ^4.0.0
 
   '@csstools/css-syntax-patches-for-csstree@1.1.12':
-    resolution: {integrity: sha512-3vLQK+dXxhBMR2Wx99PTCifE+vHtW2ndZWyla8yK813ev6oGhyn8Lja8jCyGAWTJ+LEYZK7EVtJxrDj8ztevJw==}
+    resolution:
+      {
+        integrity: sha512-3vLQK+dXxhBMR2Wx99PTCifE+vHtW2ndZWyla8yK813ev6oGhyn8Lja8jCyGAWTJ+LEYZK7EVtJxrDj8ztevJw==,
+      }
     peerDependencies:
       css-tree: ^3.2.1
     peerDependenciesMeta:
@@ -290,43 +327,73 @@ packages:
         optional: true
 
   '@csstools/css-tokenizer@4.0.0':
-    resolution: {integrity: sha512-QxULHAm7cNu72w97JUNCBFODFaXpbDg+dP8b/oWFAZ2MTRppA3U00Y2L1HqaS4J6yBqxwa/Y3nMBaxVKbB/NsA==}
-    engines: {node: '>=20.19.0'}
+    resolution:
+      {
+        integrity: sha512-QxULHAm7cNu72w97JUNCBFODFaXpbDg+dP8b/oWFAZ2MTRppA3U00Y2L1HqaS4J6yBqxwa/Y3nMBaxVKbB/NsA==,
+      }
+    engines: { node: '>=20.19.0' }
 
   '@emnapi/core@1.10.0':
-    resolution: {integrity: sha512-yq6OkJ4p82CAfPl0u9mQebQHKPJkY7WrIuk205cTYnYe+k2Z8YBh11FrbRG/H6ihirqcacOgl2BIO8oyMQLeXw==}
+    resolution:
+      {
+        integrity: sha512-yq6OkJ4p82CAfPl0u9mQebQHKPJkY7WrIuk205cTYnYe+k2Z8YBh11FrbRG/H6ihirqcacOgl2BIO8oyMQLeXw==,
+      }
 
   '@emnapi/runtime@1.10.0':
-    resolution: {integrity: sha512-ewvYlk86xUoGI0zQRNq/mC+16R1QeDlKQy21Ki3oSYXNgLb45GV1P6A0M+/s6nyCuNDqe5VpaY84BzXGwVbwFA==}
+    resolution:
+      {
+        integrity: sha512-ewvYlk86xUoGI0zQRNq/mC+16R1QeDlKQy21Ki3oSYXNgLb45GV1P6A0M+/s6nyCuNDqe5VpaY84BzXGwVbwFA==,
+      }
 
   '@emnapi/wasi-threads@1.2.1':
-    resolution: {integrity: sha512-uTII7OYF+/Mes/MrcIOYp5yOtSMLBWSIoLPpcgwipoiKbli6k322tcoFsxoIIxPDqW01SQGAgko4EzZi2BNv2w==}
+    resolution:
+      {
+        integrity: sha512-uTII7OYF+/Mes/MrcIOYp5yOtSMLBWSIoLPpcgwipoiKbli6k322tcoFsxoIIxPDqW01SQGAgko4EzZi2BNv2w==,
+      }
 
   '@eslint-community/eslint-utils@4.9.1':
-    resolution: {integrity: sha512-phrYmNiYppR7znFEdqgfWHXR6NCkZEK7hwWDHZUjit/2/U0r6XvkDl0SYnoM51Hq7FhCGdLDT6zxCCOY1hexsQ==}
-    engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
+    resolution:
+      {
+        integrity: sha512-phrYmNiYppR7znFEdqgfWHXR6NCkZEK7hwWDHZUjit/2/U0r6XvkDl0SYnoM51Hq7FhCGdLDT6zxCCOY1hexsQ==,
+      }
+    engines: { node: ^12.22.0 || ^14.17.0 || >=16.0.0 }
     peerDependencies:
       eslint: ^6.0.0 || ^7.0.0 || >=8.0.0
 
   '@eslint-community/regexpp@4.12.2':
-    resolution: {integrity: sha512-EriSTlt5OC9/7SXkRSCAhfSxxoSUgBm33OH+IkwbdpgoqsSsUg7y3uh+IICI/Qg4BBWr3U2i39RpmycbxMq4ew==}
-    engines: {node: ^12.0.0 || ^14.0.0 || >=16.0.0}
+    resolution:
+      {
+        integrity: sha512-EriSTlt5OC9/7SXkRSCAhfSxxoSUgBm33OH+IkwbdpgoqsSsUg7y3uh+IICI/Qg4BBWr3U2i39RpmycbxMq4ew==,
+      }
+    engines: { node: ^12.0.0 || ^14.0.0 || >=16.0.0 }
 
   '@eslint/config-array@0.23.5':
-    resolution: {integrity: sha512-Y3kKLvC1dvTOT+oGlqNQ1XLqK6D1HU2YXPc52NmAlJZbMMWDzGYXMiPRJ8TYD39muD/OTjlZmNJ4ib7dvSrMBA==}
-    engines: {node: ^20.19.0 || ^22.13.0 || >=24}
+    resolution:
+      {
+        integrity: sha512-Y3kKLvC1dvTOT+oGlqNQ1XLqK6D1HU2YXPc52NmAlJZbMMWDzGYXMiPRJ8TYD39muD/OTjlZmNJ4ib7dvSrMBA==,
+      }
+    engines: { node: ^20.19.0 || ^22.13.0 || >=24 }
 
   '@eslint/config-helpers@0.6.0':
-    resolution: {integrity: sha512-ii6Bw9jJ2zi2cWA2Z+9/QZ/+3DX6kwaV5Q986D/CdP3Lap3w/pgQZ373FV7byY/i7L4IRH/G43I5dz1ClsCbpA==}
-    engines: {node: ^20.19.0 || ^22.13.0 || >=24}
+    resolution:
+      {
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     peerDependencies:
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     peerDependenciesMeta:
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     os: [freebsd]
 
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     peerDependencies:
       '@vue/compiler-dom': 3.x
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@@ -799,96 +1154,171 @@ packages:
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       acorn: ^6.0.0 || ^7.0.0 || ^8.0.0
 
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+    engines: { node: '>=0.4.0' }
     hasBin: true
 
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+      }
     peerDependencies:
       '@microsoft/api-extractor': '>=7'
       '@rspack/core': ^1
@@ -1502,17 +2349,29 @@ packages:
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       rollup: '>=3'
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+    engines: { node: ^20.19.0 || >=22.12.0 }
     hasBin: true
     peerDependencies:
       '@types/node': ^20.19.0 || >=22.12.0
@@ -1569,8 +2431,11 @@ packages:
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-    engines: {node: ^20.0.0 || ^22.0.0 || >=24.0.0}
+    resolution:
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+      }
+    engines: { node: ^20.0.0 || ^22.0.0 || >=24.0.0 }
     hasBin: true
     peerDependencies:
       '@edge-runtime/vm': '*'
@@ -1610,25 +2475,40 @@ packages:
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   vscode-uri@3.1.0:
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+    resolution:
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+    resolution:
+      {
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+    resolution:
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+    engines: { node: ^18.18.0 || ^20.9.0 || >=21.1.0 }
     peerDependencies:
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+      }
     hasBin: true
     peerDependencies:
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+      }
     peerDependencies:
       typescript: '*'
     peerDependenciesMeta:
@@ -1636,64 +2516,105 @@ packages:
         optional: true
 
   w3c-xmlserializer@5.0.0:
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-    engines: {node: '>=18'}
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+      }
+    engines: { node: '>=18' }
 
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-    engines: {node: '>=20'}
+    resolution:
+      {
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+      }
+    engines: { node: '>=20' }
 
   webpack-virtual-modules@0.6.2:
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+    resolution:
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-    engines: {node: '>=20'}
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+    engines: { node: '>=20' }
 
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-    engines: {node: ^20.19.0 || ^22.12.0 || >=24.0.0}
+    resolution:
+      {
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+      }
+    engines: { node: ^20.19.0 || ^22.12.0 || >=24.0.0 }
 
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-    engines: {node: ^22.14.0 || >=24.0.0}
+    resolution:
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+      }
+    engines: { node: ^22.14.0 || >=24.0.0 }
 
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-    engines: {node: '>= 8'}
+    resolution:
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+      }
+    engines: { node: '>= 8' }
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-    engines: {node: '>=8'}
+    resolution:
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+      }
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     hasBin: true
 
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-    engines: {node: '>=0.10.0'}
+    resolution:
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+      }
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-    engines: {node: '>=18'}
+    resolution:
+      {
+        integrity: sha512-EvGK8EJ3DhaHfbRlETOWAS5pO9MZITeauHKJyb8wyajUfQUenkIg2MvLDTZ4T/TgIcm3HU0TFBgWWboAZ30UHg==,
+      }
+    engines: { node: '>=18' }
 
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-    engines: {node: '>=16.0.0'}
+    resolution:
+      {
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+      }
+    engines: { node: '>=16.0.0' }
 
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+    resolution:
+      {
+        integrity: sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw==,
+      }
 
   yaml@2.9.0:
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-    engines: {node: '>= 14.6'}
+    resolution:
+      {
+        integrity: sha512-2AvhNX3mb8zd6Zy7INTtSpl1F15HW6Wnqj0srWlkKLcpYl/gMIMJiyuGq2KeI2YFxUPjdlB+3Lc10seMLtL4cA==,
+      }
+    engines: { node: '>= 14.6' }
     hasBin: true
 
   yocto-queue@0.1.0:
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-    engines: {node: '>=10'}
+    resolution:
+      {
+        integrity: sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==,
+      }
+    engines: { node: '>=10' }
 
 snapshots:
-
   '@asamuzakjp/css-color@6.0.7':
     dependencies:
       '@csstools/css-calc': 3.3.0(@csstools/css-parser-algorithms@4.0.0(@csstools/css-tokenizer@4.0.0))(@csstools/css-tokenizer@4.0.0)

From fb408cb354c4ad44443fbd40c770bf4267d09a33 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 21:20:46 -0300
Subject: [PATCH 35/43] feat(automata): add regex and finite-state conversions

---
 .../core/__tests__/fa-transformations.test.ts |  92 ++++++++
 packages/core/src/fa-transformations.ts       | 222 ++++++++++++++++++
 packages/core/src/index.ts                    |   8 +
 packages/core/src/regular-expression.ts       | 192 +++++++++++++++
 4 files changed, 514 insertions(+)
 create mode 100644 packages/core/__tests__/fa-transformations.test.ts
 create mode 100644 packages/core/src/fa-transformations.ts
 create mode 100644 packages/core/src/regular-expression.ts

diff --git a/packages/core/__tests__/fa-transformations.test.ts b/packages/core/__tests__/fa-transformations.test.ts
new file mode 100644
index 0000000..2f79070
--- /dev/null
+++ b/packages/core/__tests__/fa-transformations.test.ts
@@ -0,0 +1,92 @@
+import { describe, expect, it } from 'vitest';
+import type { FiniteAutomaton } from '../src/types';
+import {
+  determinize,
+  finiteAutomatonToRegularExpression,
+  minimizeDFA,
+} from '../src/fa-transformations';
+import {
+  formatRegularExpression,
+  parseRegularExpression,
+  regularExpressionToNFA,
+} from '../src/regular-expression';
+import { isDeterministic } from '../src/validation';
+
+const accepts = (automaton: FiniteAutomaton, input: string): boolean => {
+  const byFrom = new Map<string, typeof automaton.transitions>();
+  for (const transition of automaton.transitions)
+    byFrom.set(transition.from, [...(byFrom.get(transition.from) ?? []), transition]);
+  const finalIds = new Set(
+    automaton.states.filter((state) => state.isFinal).map((state) => state.id),
+  );
+  const queue = automaton.states
+    .filter((state) => state.isInitial)
+    .map((state) => [state.id, 0] as const);
+  const seen = new Set<string>();
+  while (queue.length) {
+    const [state, offset] = queue.shift()!;
+    const key = `${state}\u0000${offset}`;
+    if (seen.has(key)) continue;
+    seen.add(key);
+    if (offset === input.length && finalIds.has(state)) return true;
+    for (const transition of byFrom.get(state) ?? [])
+      if (input.startsWith(transition.read, offset))
+        queue.push([transition.to, offset + transition.read.length]);
+  }
+  return false;
+};
+
+const samples = ['', 'a', 'b', 'ab', 'abb', 'aab', 'abab', 'bbb'];
+
+describe('regular expressions and finite automata transformations', () => {
+  it('parses and formats JFLAP regular-expression syntax', () => {
+    const source = '(!+a)(b+c)*';
+    expect(formatRegularExpression(parseRegularExpression(source))).toBe(source);
+    expect(() => parseRegularExpression('(a+b')).toThrow('Missing closing parenthesis');
+  });
+
+  it('constructs an equivalent Thompson NFA', () => {
+    const nfa = regularExpressionToNFA('a(b+c)*');
+    expect(samples.map((word) => accepts(nfa, word))).toEqual([
+      false,
+      true,
+      false,
+      true,
+      true,
+      false,
+      false,
+      false,
+    ]);
+  });
+
+  it('determinizes epsilon and multi-character transitions without changing the language', () => {
+    const nfa: FiniteAutomaton = {
+      kind: 'fa',
+      states: [
+        { id: '0', name: 'q0', x: 0, y: 0, isInitial: true, isFinal: false },
+        { id: '1', name: 'q1', x: 0, y: 0, isInitial: false, isFinal: true },
+      ],
+      transitions: [
+        { id: 'e', from: '0', to: '1', read: '' },
+        { id: 'w', from: '0', to: '1', read: 'ab' },
+        { id: 'a', from: '1', to: '1', read: 'a' },
+      ],
+    };
+    const dfa = determinize(nfa);
+    expect(isDeterministic(dfa)).toBe(true);
+    expect(samples.map((word) => accepts(dfa, word))).toEqual(
+      samples.map((word) => accepts(nfa, word)),
+    );
+  });
+
+  it('minimizes and converts both ways while preserving sample behavior', () => {
+    const source = regularExpressionToNFA('(a+b)*abb');
+    const minimized = minimizeDFA(source);
+    expect(minimized.states).toHaveLength(4);
+    const expression = finiteAutomatonToRegularExpression(minimized);
+    const reopened = regularExpressionToNFA(expression);
+    expect(samples.map((word) => accepts(reopened, word))).toEqual(
+      samples.map((word) => accepts(source, word)),
+    );
+  });
+});
diff --git a/packages/core/src/fa-transformations.ts b/packages/core/src/fa-transformations.ts
new file mode 100644
index 0000000..5312497
--- /dev/null
+++ b/packages/core/src/fa-transformations.ts
@@ -0,0 +1,222 @@
+import type { AutomatonState, FATransition, FiniteAutomaton } from './types';
+import {
+  formatRegularExpression,
+  regularExpressionOperations,
+  type RegularExpression,
+} from './regular-expression';
+
+function characters(value: string): string[] {
+  return [...value];
+}
+
+function normalizeCharacterTransitions(automaton: FiniteAutomaton): FiniteAutomaton {
+  const states = [...automaton.states];
+  const transitions: FATransition[] = [];
+  for (const transition of automaton.transitions) {
+    const symbols = characters(transition.read);
+    if (symbols.length <= 1) {
+      transitions.push({ ...transition });
+      continue;
+    }
+    let from = transition.from;
+    symbols.forEach((symbol, index) => {
+      const last = index === symbols.length - 1;
+      const to = last ? transition.to : `expand_${transition.id}_${index}`;
+      if (!last) states.push({ id: to, name: to, x: 0, y: 0, isInitial: false, isFinal: false });
+      transitions.push({ id: `${transition.id}_${index}`, from, to, read: symbol });
+      from = to;
+    });
+  }
+  return { ...automaton, states, transitions };
+}
+
+/** Subset construction with epsilon closure. Multi-character labels are expanded first. */
+export function determinize(automaton: FiniteAutomaton): FiniteAutomaton {
+  const normalized = normalizeCharacterTransitions(automaton);
+  const initial = normalized.states.find((state) => state.isInitial);
+  if (!initial) throw new Error('Cannot determinize an automaton without an initial state');
+  const alphabet = [
+    ...new Set(normalized.transitions.map((transition) => transition.read).filter(Boolean)),
+  ].sort();
+  const byFrom = new Map<string, FATransition[]>();
+  for (const transition of normalized.transitions)
+    byFrom.set(transition.from, [...(byFrom.get(transition.from) ?? []), transition]);
+  const closure = (seed: Iterable<string>) => {
+    const result = new Set(seed);
+    const queue = [...result];
+    while (queue.length) {
+      const current = queue.shift()!;
+      for (const transition of byFrom.get(current) ?? [])
+        if (transition.read === '' && !result.has(transition.to)) {
+          result.add(transition.to);
+          queue.push(transition.to);
+        }
+    }
+    return [...result].sort();
+  };
+  const key = (ids: readonly string[]) => ids.join('\u0000');
+  const subsets: string[][] = [closure([initial.id])];
+  const indexes = new Map([[key(subsets[0]!), 0]]);
+  const transitions: FATransition[] = [];
+  for (let index = 0; index < subsets.length; index++) {
+    const subset = subsets[index]!;
+    for (const symbol of alphabet) {
+      const targets = closure(
+        subset.flatMap((id) =>
+          (byFrom.get(id) ?? [])
+            .filter((transition) => transition.read === symbol)
+            .map((transition) => transition.to),
+        ),
+      );
+      if (targets.length === 0) continue;
+      const targetKey = key(targets);
+      let targetIndex = indexes.get(targetKey);
+      if (targetIndex === undefined) {
+        targetIndex = subsets.length;
+        indexes.set(targetKey, targetIndex);
+        subsets.push(targets);
+      }
+      transitions.push({
+        id: `dfa_t${transitions.length}`,
+        from: `dfa_s${index}`,
+        to: `dfa_s${targetIndex}`,
+        read: symbol,
+      });
+    }
+  }
+  const sourceStates = new Map(normalized.states.map((state) => [state.id, state]));
+  const states = subsets.map(
+    (subset, index): AutomatonState => ({
+      id: `dfa_s${index}`,
+      name: `{${subset.map((id) => sourceStates.get(id)?.name ?? id).join(',')}}`,
+      x: 100 + (index % 6) * 130,
+      y: 100 + Math.floor(index / 6) * 100,
+      isInitial: index === 0,
+      isFinal: subset.some((id) => sourceStates.get(id)?.isFinal),
+    }),
+  );
+  return { kind: 'fa', states, transitions };
+}
+
+/** Removes unreachable states and merges equivalent DFA states by partition refinement. */
+export function minimizeDFA(input: FiniteAutomaton): FiniteAutomaton {
+  const automaton = determinize(input);
+  const alphabet = [...new Set(automaton.transitions.map((transition) => transition.read))].sort();
+  const initial = automaton.states.find((state) => state.isInitial)!;
+  const reachable = new Set([initial.id]);
+  const queue = [initial.id];
+  while (queue.length) {
+    const from = queue.shift()!;
+    for (const transition of automaton.transitions.filter((item) => item.from === from))
+      if (!reachable.has(transition.to)) {
+        reachable.add(transition.to);
+        queue.push(transition.to);
+      }
+  }
+  const states = automaton.states.filter((state) => reachable.has(state.id));
+  const transitionMap = new Map(
+    automaton.transitions.map((transition) => [
+      `${transition.from}\u0000${transition.read}`,
+      transition.to,
+    ]),
+  );
+  let partitions = [
+    states.filter((state) => !state.isFinal).map((state) => state.id),
+    states.filter((state) => state.isFinal).map((state) => state.id),
+  ].filter((group) => group.length);
+  let changed = true;
+  while (changed) {
+    changed = false;
+    const groupOf = new Map(
+      partitions.flatMap((group, index) => group.map((id) => [id, index] as const)),
+    );
+    const next: string[][] = [];
+    for (const group of partitions) {
+      const buckets = new Map<string, string[]>();
+      for (const id of group) {
+        const signature = alphabet
+          .map((symbol) => groupOf.get(transitionMap.get(`${id}\u0000${symbol}`) ?? '') ?? -1)
+          .join(',');
+        buckets.set(signature, [...(buckets.get(signature) ?? []), id]);
+      }
+      next.push(...buckets.values());
+      if (buckets.size > 1) changed = true;
+    }
+    partitions = next;
+  }
+  const groupOf = new Map(
+    partitions.flatMap((group, index) => group.map((id) => [id, index] as const)),
+  );
+  const sourceStates = new Map(states.map((state) => [state.id, state]));
+  const minimizedStates = partitions.map(
+    (group, index): AutomatonState => ({
+      id: `min_s${index}`,
+      name: group.map((id) => sourceStates.get(id)?.name ?? id).join(' / '),
+      x: 100 + (index % 6) * 130,
+      y: 100 + Math.floor(index / 6) * 100,
+      isInitial: group.includes(initial.id),
+      isFinal: group.some((id) => sourceStates.get(id)?.isFinal),
+    }),
+  );
+  const transitions: FATransition[] = [];
+  partitions.forEach((group, fromIndex) => {
+    for (const symbol of alphabet) {
+      const target = transitionMap.get(`${group[0]}\u0000${symbol}`);
+      if (target === undefined) continue;
+      transitions.push({
+        id: `min_t${transitions.length}`,
+        from: `min_s${fromIndex}`,
+        to: `min_s${groupOf.get(target)!}`,
+        read: symbol,
+      });
+    }
+  });
+  return { kind: 'fa', states: minimizedStates, transitions };
+}
+
+/** GNFA state elimination. Returns a JFLAP-compatible expression. */
+export function finiteAutomatonToRegularExpression(automaton: FiniteAutomaton): string {
+  const initials = automaton.states.filter((state) => state.isInitial);
+  const finals = automaton.states.filter((state) => state.isFinal);
+  if (initials.length !== 1)
+    throw new Error('FA-to-RE conversion requires exactly one initial state');
+  if (finals.length === 0) return '∅';
+  const start = '__gnfa_start';
+  const end = '__gnfa_end';
+  const ids = [start, ...automaton.states.map((state) => state.id), end];
+  const labels = new Map<string, RegularExpression>();
+  const mapKey = (from: string, to: string) => `${from}\u0000${to}`;
+  const { union, concat, star } = regularExpressionOperations;
+  const add = (from: string, to: string, expression: RegularExpression) =>
+    labels.set(
+      mapKey(from, to),
+      union(labels.get(mapKey(from, to)) ?? { kind: 'empty' }, expression),
+    );
+  add(start, initials[0]!.id, { kind: 'epsilon' });
+  for (const final of finals) add(final.id, end, { kind: 'epsilon' });
+  for (const transition of automaton.transitions) {
+    const expression =
+      transition.read === ''
+        ? ({ kind: 'epsilon' } as const)
+        : concat(
+            ...characters(transition.read).map((value) => ({ kind: 'symbol', value }) as const),
+          );
+    add(transition.from, transition.to, expression);
+  }
+  for (const remove of automaton.states.map((state) => state.id)) {
+    const remaining = ids.filter((id) => id !== remove);
+    for (const from of remaining)
+      for (const to of remaining) {
+        const left = labels.get(mapKey(from, remove));
+        const right = labels.get(mapKey(remove, to));
+        if (!left || !right) continue;
+        const loop = labels.get(mapKey(remove, remove)) ?? { kind: 'epsilon' };
+        add(from, to, concat(left, star(loop), right));
+      }
+    for (const id of ids) {
+      labels.delete(mapKey(id, remove));
+      labels.delete(mapKey(remove, id));
+    }
+  }
+  return formatRegularExpression(labels.get(mapKey(start, end)) ?? { kind: 'empty' });
+}
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index 41086b5..095dd17 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -45,6 +45,14 @@ export type { ValidationDiagnostic } from './validation';
 export { generateStateId, generateTransitionId, createIdGenerator, resetIdCounters } from './ids';
 export { getInputAlphabet, getStackAlphabet, getTapeAlphabet } from './alphabets';
 export type { IdGenerator } from './ids';
+export {
+  parseRegularExpression,
+  formatRegularExpression,
+  regularExpressionToNFA,
+  RegularExpressionSyntaxError,
+} from './regular-expression';
+export type { RegularExpression } from './regular-expression';
+export { determinize, minimizeDFA, finiteAutomatonToRegularExpression } from './fa-transformations';
 
 export type { Command } from './commands/types';
 export { CommandHistory } from './commands/history';
diff --git a/packages/core/src/regular-expression.ts b/packages/core/src/regular-expression.ts
new file mode 100644
index 0000000..7f5d172
--- /dev/null
+++ b/packages/core/src/regular-expression.ts
@@ -0,0 +1,192 @@
+import type { AutomatonState, FATransition, FiniteAutomaton } from './types';
+
+export type RegularExpression =
+  | { readonly kind: 'empty' }
+  | { readonly kind: 'epsilon' }
+  | { readonly kind: 'symbol'; readonly value: string }
+  | { readonly kind: 'union'; readonly alternatives: readonly RegularExpression[] }
+  | { readonly kind: 'concat'; readonly factors: readonly RegularExpression[] }
+  | { readonly kind: 'star'; readonly expression: RegularExpression };
+
+export class RegularExpressionSyntaxError extends Error {
+  constructor(
+    message: string,
+    readonly offset: number,
+  ) {
+    super(`${message} at position ${offset + 1}`);
+    this.name = 'RegularExpressionSyntaxError';
+  }
+}
+
+export function parseRegularExpression(source: string): RegularExpression {
+  let offset = 0;
+  const chars = [...source];
+  const peek = () => chars[offset];
+  const parseUnion = (): RegularExpression => {
+    const alternatives = [parseConcat()];
+    while (peek() === '+') {
+      offset++;
+      alternatives.push(parseConcat());
+    }
+    return union(...alternatives);
+  };
+  const parseConcat = (): RegularExpression => {
+    const factors: RegularExpression[] = [];
+    while (offset < chars.length && peek() !== ')' && peek() !== '+') factors.push(parseStar());
+    return concat(...factors);
+  };
+  const parseStar = (): RegularExpression => {
+    let expression = parseAtom();
+    while (peek() === '*') {
+      offset++;
+      expression = star(expression);
+    }
+    return expression;
+  };
+  const parseAtom = (): RegularExpression => {
+    const token = peek();
+    if (token === undefined)
+      throw new RegularExpressionSyntaxError('Expected an expression', offset);
+    if (token === '(') {
+      offset++;
+      const expression = parseUnion();
+      if (peek() !== ')')
+        throw new RegularExpressionSyntaxError('Missing closing parenthesis', offset);
+      offset++;
+      return expression;
+    }
+    if (token === '\\') {
+      offset++;
+      const escaped = peek();
+      if (escaped === undefined)
+        throw new RegularExpressionSyntaxError('Missing escaped symbol', offset);
+      offset++;
+      return { kind: 'symbol', value: escaped };
+    }
+    if (token === '*' || token === ')')
+      throw new RegularExpressionSyntaxError(`Unexpected "${token}"`, offset);
+    offset++;
+    if (token === '!') return { kind: 'epsilon' };
+    if (token === '∅') return { kind: 'empty' };
+    return { kind: 'symbol', value: token };
+  };
+
+  if (source === '') return { kind: 'epsilon' };
+  const expression = parseUnion();
+  if (offset !== chars.length)
+    throw new RegularExpressionSyntaxError(`Unexpected "${peek()}"`, offset);
+  return expression;
+}
+
+export function formatRegularExpression(expression: RegularExpression): string {
+  const format = (node: RegularExpression, precedence: number): string => {
+    if (node.kind === 'empty') return '∅';
+    if (node.kind === 'epsilon') return '!';
+    if (node.kind === 'symbol')
+      return /[+*()!∅\\]/u.test(node.value) ? `\\${node.value}` : node.value;
+    if (node.kind === 'star') {
+      const value = `${format(node.expression, 3)}*`;
+      return precedence > 3 ? `(${value})` : value;
+    }
+    if (node.kind === 'concat') {
+      const value = node.factors.map((factor) => format(factor, 2)).join('');
+      return precedence > 2 ? `(${value})` : value;
+    }
+    const value = node.alternatives.map((alternative) => format(alternative, 1)).join('+');
+    return precedence > 1 ? `(${value})` : value;
+  };
+  return format(expression, 0);
+}
+
+function union(...items: RegularExpression[]): RegularExpression {
+  const alternatives = items
+    .flatMap((item) => (item.kind === 'union' ? item.alternatives : [item]))
+    .filter((item) => item.kind !== 'empty');
+  const unique = [
+    ...new Map(alternatives.map((item) => [formatRegularExpression(item), item])).values(),
+  ];
+  if (unique.length === 0) return { kind: 'empty' };
+  if (unique.length === 1) return unique[0]!;
+  return { kind: 'union', alternatives: unique };
+}
+
+function concat(...items: RegularExpression[]): RegularExpression {
+  const factors = items.flatMap((item) => (item.kind === 'concat' ? item.factors : [item]));
+  if (factors.some((item) => item.kind === 'empty')) return { kind: 'empty' };
+  const meaningful = factors.filter((item) => item.kind !== 'epsilon');
+  if (meaningful.length === 0) return { kind: 'epsilon' };
+  if (meaningful.length === 1) return meaningful[0]!;
+  return { kind: 'concat', factors: meaningful };
+}
+
+function star(expression: RegularExpression): RegularExpression {
+  if (expression.kind === 'empty' || expression.kind === 'epsilon') return { kind: 'epsilon' };
+  if (expression.kind === 'star') return expression;
+  return { kind: 'star', expression };
+}
+
+/** Thompson construction using JFLAP's `+`, `*`, implicit concatenation, and `!` syntax. */
+export function regularExpressionToNFA(source: string | RegularExpression): FiniteAutomaton {
+  const expression = typeof source === 'string' ? parseRegularExpression(source) : source;
+  const states: AutomatonState[] = [];
+  const transitions: FATransition[] = [];
+  const makeState = () => {
+    const index = states.length;
+    const state = {
+      id: `re_s${index}`,
+      name: `q${index}`,
+      x: 100 + (index % 6) * 110,
+      y: 100 + Math.floor(index / 6) * 90,
+      isInitial: false,
+      isFinal: false,
+    };
+    states.push(state);
+    return state.id;
+  };
+  const edge = (from: string, to: string, read = '') =>
+    transitions.push({ id: `re_t${transitions.length}`, from, to, read });
+  const build = (node: RegularExpression): [string, string] => {
+    const start = makeState();
+    const end = makeState();
+    if (node.kind === 'empty') return [start, end];
+    if (node.kind === 'epsilon') edge(start, end);
+    if (node.kind === 'symbol') edge(start, end, node.value);
+    if (node.kind === 'concat') {
+      let current = start;
+      for (const factor of node.factors) {
+        const [childStart, childEnd] = build(factor);
+        edge(current, childStart);
+        current = childEnd;
+      }
+      edge(current, end);
+    }
+    if (node.kind === 'union') {
+      for (const alternative of node.alternatives) {
+        const [childStart, childEnd] = build(alternative);
+        edge(start, childStart);
+        edge(childEnd, end);
+      }
+    }
+    if (node.kind === 'star') {
+      const [childStart, childEnd] = build(node.expression);
+      edge(start, end);
+      edge(start, childStart);
+      edge(childEnd, childStart);
+      edge(childEnd, end);
+    }
+    return [start, end];
+  };
+  const [initial, final] = build(expression);
+  return {
+    kind: 'fa',
+    states: states.map((state) => ({
+      ...state,
+      isInitial: state.id === initial,
+      isFinal: state.id === final,
+    })),
+    transitions,
+    meta: { comment: `Generated from regular expression ${formatRegularExpression(expression)}` },
+  };
+}
+
+export const regularExpressionOperations = { union, concat, star };

From 60ca0ef3fb0c7000a7051d473e4f405c17f1572e Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 21:22:47 -0300
Subject: [PATCH 36/43] feat(jff): support regular-expression documents

---
 .../jff/__tests__/fixtures/official/README.md |  1 +
 .../fixtures/official/regExprToNfa.jff        |  5 ++
 .../jff/__tests__/regular-expression.test.ts  | 28 ++++++++
 packages/jff/src/documents.ts                 | 70 +++++++++++++++++++
 packages/jff/src/index.ts                     |  2 +
 5 files changed, 106 insertions(+)
 create mode 100644 packages/jff/__tests__/fixtures/official/regExprToNfa.jff
 create mode 100644 packages/jff/__tests__/regular-expression.test.ts
 create mode 100644 packages/jff/src/documents.ts

diff --git a/packages/jff/__tests__/fixtures/official/README.md b/packages/jff/__tests__/fixtures/official/README.md
index ba37bd2..4a16fbe 100644
--- a/packages/jff/__tests__/fixtures/official/README.md
+++ b/packages/jff/__tests__/fixtures/official/README.md
@@ -9,6 +9,7 @@ Files in this directory are retained unchanged from their public tutorial source
 | `ex5.1.jff`             | https://www.jflap.org/jflapbook/files/ex5.1.jff                   | 2026-09-06 | PDA for one or more `a`s followed by more `b`s than `a`s                                                                      |
 | `ex9-anbncn.jff`        | https://www.jflap.org/jflapbook/files/ex9-anbncn.jff              | 2026-09-06 | Single-tape TM for `a^n b^n c^n`, including empty input                                                                       |
 | `turingAnBnCnMulti.jff` | https://www.jflap.org/tutorial/turing/multi/turingAnBnCnMulti.jff | 2026-09-06 | Official three-tape TM for `a^n b^n c^n`                                                                                      |
+| `regExprToNfa.jff`      | https://www.jflap.org/tutorial/regular/regExprToNfa.jff           | 2026-09-06 | Official regular-expression document containing `a*b(a+b)`                                                                    |
 
 The example's XML identifies JFLAP 6.1; it is published in the official tutorial and uses the PDA structure accepted by JFLAP 7.1. Its language follows from the transitions: the first `a` replaces `Z` with `aZ`, more `a`s push `a`, each `b` pops one `a`, and the final epsilon transition is enabled when `Z` is exposed.
 
diff --git a/packages/jff/__tests__/fixtures/official/regExprToNfa.jff b/packages/jff/__tests__/fixtures/official/regExprToNfa.jff
new file mode 100644
index 0000000..6616b4c
--- /dev/null
+++ b/packages/jff/__tests__/fixtures/official/regExprToNfa.jff
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><!--Created with JFLAP 6.1.--><structure>
+	<type>re</type>
+	<!--The regular expression.-->
+	<expression>a*b(a+b)</expression>
+</structure>
\ No newline at end of file
diff --git a/packages/jff/__tests__/regular-expression.test.ts b/packages/jff/__tests__/regular-expression.test.ts
new file mode 100644
index 0000000..c907bd0
--- /dev/null
+++ b/packages/jff/__tests__/regular-expression.test.ts
@@ -0,0 +1,28 @@
+import { readFileSync } from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { describe, expect, it } from 'vitest';
+import { parseJFFDocument, serializeJFFDocument } from '../src';
+
+const fixture = fileURLToPath(new URL('./fixtures/official/regExprToNfa.jff', import.meta.url));
+
+describe('JFLAP regular-expression documents', () => {
+  it('imports the official expression and preserves it on export', () => {
+    const document = parseJFFDocument(readFileSync(fixture, 'utf8'));
+    expect(document).toEqual({ kind: 'regular-expression', expression: 'a*b(a+b)' });
+    expect(parseJFFDocument(serializeJFFDocument(document))).toEqual(document);
+  });
+
+  it('preserves meaningful whitespace and XML metacharacters', () => {
+    const document = { kind: 'regular-expression', expression: ' a\\+b&' } as const;
+    expect(parseJFFDocument(serializeJFFDocument(document))).toEqual(document);
+  });
+
+  it('rejects invalid expressions and unknown content', () => {
+    expect(() =>
+      parseJFFDocument('<structure><type>re</type><expression>(a</expression></structure>'),
+    ).toThrow('Missing closing parenthesis');
+    expect(() => parseJFFDocument('<structure><type>re</type><unexpected/></structure>')).toThrow(
+      'Unsupported regular expression field',
+    );
+  });
+});
diff --git a/packages/jff/src/documents.ts b/packages/jff/src/documents.ts
new file mode 100644
index 0000000..5687bc0
--- /dev/null
+++ b/packages/jff/src/documents.ts
@@ -0,0 +1,70 @@
+import type { AnyAutomaton } from '@jauto/core';
+import { parseRegularExpression } from '@jauto/core';
+import { XMLParser, XMLValidator } from 'fast-xml-parser';
+import { JFFParseError, JFFSerializeError } from './errors';
+import { parseJFF } from './parser';
+import { serializeJFF } from './serializer';
+import { checkKeys, escapeXml, xmlEntityDecoder, xmlNode, xmlText } from './xml';
+
+export interface RegularExpressionDocument {
+  readonly kind: 'regular-expression';
+  readonly expression: string;
+}
+
+export type JFFDocument = AnyAutomaton | RegularExpressionDocument;
+
+const parser = new XMLParser({
+  ignoreAttributes: false,
+  parseTagValue: false,
+  parseAttributeValue: false,
+  trimValues: false,
+  entityDecoder: xmlEntityDecoder,
+});
+
+function documentType(xml: string): string {
+  if (xml.length > 5_000_000) throw new JFFParseError('Document exceeds the 5 MB import limit');
+  if (/<!DOCTYPE|<!ENTITY/i.test(xml))
+    throw new JFFParseError('DTD and custom XML entities are not supported');
+  const valid = XMLValidator.validate(xml);
+  if (valid !== true) throw new JFFParseError(`Invalid XML: ${valid.err.msg}`);
+  const root = xmlNode(parser.parse(xml), 'document');
+  const structure = xmlNode(root.structure, 'structure');
+  return xmlText(structure.type, 'type').trim();
+}
+
+/** Parses every JFF document family supported by Jauto. */
+export function parseJFFDocument(xml: string): JFFDocument {
+  const type = documentType(xml);
+  if (type === 'fa' || type === 'pda' || type === 'turing') return parseJFF(xml).automaton;
+  if (type !== 're') throw new JFFParseError(`Unsupported JFF document type: "${type}"`);
+  const root = xmlNode(parser.parse(xml), 'document');
+  checkKeys(root, ['?xml', 'structure'], 'document');
+  const structure = xmlNode(root.structure, 'structure');
+  checkKeys(structure, ['type', 'expression'], 'regular expression');
+  const expression = 'expression' in structure ? xmlText(structure.expression, 'expression') : '';
+  try {
+    parseRegularExpression(expression);
+  } catch (error) {
+    throw new JFFParseError(error instanceof Error ? error.message : 'Invalid regular expression');
+  }
+  return { kind: 'regular-expression', expression };
+}
+
+export function serializeJFFDocument(document: JFFDocument): string {
+  if (document.kind !== 'regular-expression') return serializeJFF(document);
+  try {
+    parseRegularExpression(document.expression);
+  } catch (error) {
+    throw new JFFSerializeError(
+      error instanceof Error ? error.message : 'Invalid regular expression',
+    );
+  }
+  return [
+    '<?xml version="1.0" encoding="UTF-8" standalone="no"?>',
+    '<!--Created with Jauto.-->',
+    '<structure>',
+    '\t<type>re</type>',
+    `\t<expression>${escapeXml(document.expression)}</expression>`,
+    '</structure>',
+  ].join('\n');
+}
diff --git a/packages/jff/src/index.ts b/packages/jff/src/index.ts
index 476e214..90a6e52 100644
--- a/packages/jff/src/index.ts
+++ b/packages/jff/src/index.ts
@@ -2,6 +2,8 @@ export { parseJFF } from './parser';
 export type { ParseResult } from './parser';
 export { serializeJFF } from './serializer';
 export { JFFParseError, JFFSerializeError, JFFValidationWarning } from './errors';
+export { parseJFFDocument, serializeJFFDocument } from './documents';
+export type { JFFDocument, RegularExpressionDocument } from './documents';
 export { resetFACounter, createIdGenerator as createFAIdGenerator } from './parsers/fa';
 export { resetPDACounter, createIdGenerator as createPDAIdGenerator } from './parsers/pda';
 export { resetTMCounter, createIdGenerator as createTMIdGenerator } from './parsers/tm';

From 56829909a1e05716e16e9d05898bb19a85bac31d Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 21:25:38 -0300
Subject: [PATCH 37/43] feat(grammar): add JFF exchange and parsing workflows

---
 packages/core/__tests__/grammar.test.ts       |  55 ++++++
 packages/core/src/grammar.ts                  | 162 ++++++++++++++++++
 packages/core/src/index.ts                    |   2 +
 .../jff/__tests__/fixtures/official/README.md |   1 +
 .../fixtures/official/regGrammarToNFA.jff     |  24 +++
 packages/jff/__tests__/grammar.test.ts        |  24 +++
 packages/jff/src/documents.ts                 |  44 ++++-
 packages/jff/src/index.ts                     |   2 +-
 8 files changed, 308 insertions(+), 6 deletions(-)
 create mode 100644 packages/core/__tests__/grammar.test.ts
 create mode 100644 packages/core/src/grammar.ts
 create mode 100644 packages/jff/__tests__/fixtures/official/regGrammarToNFA.jff
 create mode 100644 packages/jff/__tests__/grammar.test.ts

diff --git a/packages/core/__tests__/grammar.test.ts b/packages/core/__tests__/grammar.test.ts
new file mode 100644
index 0000000..c19060d
--- /dev/null
+++ b/packages/core/__tests__/grammar.test.ts
@@ -0,0 +1,55 @@
+import { describe, expect, it } from 'vitest';
+import { classifyGrammar, recognizeContextFree, recognizeCYK, type Grammar } from '../src';
+
+describe('grammar workflows', () => {
+  it('classifies right-linear and context-free grammars', () => {
+    expect(
+      classifyGrammar({
+        startSymbol: 'S',
+        productions: [
+          { left: 'S', right: 'aB' },
+          { left: 'B', right: '' },
+        ],
+      }),
+    ).toBe('regular');
+    expect(
+      classifyGrammar({
+        startSymbol: 'S',
+        productions: [
+          { left: 'S', right: 'aSb' },
+          { left: 'S', right: '' },
+        ],
+      }),
+    ).toBe('context-free');
+  });
+
+  it('recognizes a^n b^n with Earley parsing, including epsilon', () => {
+    const grammar: Grammar = {
+      startSymbol: 'S',
+      productions: [
+        { left: 'S', right: 'aSb' },
+        { left: 'S', right: '' },
+      ],
+    };
+    for (const word of ['', 'ab', 'aabb', 'aaabbb'])
+      expect(recognizeContextFree(grammar, word)).toBe(true);
+    for (const word of ['a', 'abb', 'abab'])
+      expect(recognizeContextFree(grammar, word)).toBe(false);
+  });
+
+  it('recognizes CNF grammars with CYK and rejects non-CNF rules', () => {
+    const grammar: Grammar = {
+      startSymbol: 'S',
+      productions: [
+        { left: 'S', right: 'AB' },
+        { left: 'A', right: 'a' },
+        { left: 'B', right: 'b' },
+      ],
+    };
+    expect(recognizeCYK(grammar, 'ab')).toBe(true);
+    expect(recognizeCYK(grammar, 'aa')).toBe(false);
+    expect(() =>
+      recognizeCYK({ startSymbol: 'S', productions: [{ left: 'S', right: 'abc' }] }, 'abc'),
+    ).toThrow('Chomsky normal form');
+  });
+});
diff --git a/packages/core/src/grammar.ts b/packages/core/src/grammar.ts
new file mode 100644
index 0000000..4ac23f8
--- /dev/null
+++ b/packages/core/src/grammar.ts
@@ -0,0 +1,162 @@
+export interface GrammarProduction {
+  readonly left: string;
+  readonly right: string;
+}
+
+export interface Grammar {
+  readonly startSymbol: string;
+  readonly productions: readonly GrammarProduction[];
+}
+
+export type GrammarClassification =
+  | 'regular'
+  | 'context-free'
+  | 'context-sensitive'
+  | 'unrestricted';
+
+export function classifyGrammar(grammar: Grammar): GrammarClassification {
+  if (grammar.productions.some((production) => production.left.length === 0)) return 'unrestricted';
+  const contextFree = grammar.productions.every(
+    (production) => [...production.left].length === 1 && /[A-Z]/u.test(production.left),
+  );
+  if (!contextFree) {
+    return grammar.productions.every(
+      (production) => production.right.length >= production.left.length || production.right === '',
+    )
+      ? 'context-sensitive'
+      : 'unrestricted';
+  }
+  const variables = new Set(grammar.productions.map((production) => production.left));
+  const regular = grammar.productions.every((production) => {
+    if (production.right === '') return true;
+    const tokens = tokenizeRight(production.right, variables);
+    const variableIndexes = tokens.flatMap((token, index) => (variables.has(token) ? [index] : []));
+    return (
+      variableIndexes.length <= 1 &&
+      (variableIndexes.length === 0 || variableIndexes[0] === tokens.length - 1)
+    );
+  });
+  return regular ? 'regular' : 'context-free';
+}
+
+function tokenizeRight(right: string, variables: ReadonlySet<string>): string[] {
+  const names = [...variables].sort((a, b) => b.length - a.length);
+  const tokens: string[] = [];
+  for (let offset = 0; offset < right.length; ) {
+    const variable = names.find((name) => right.startsWith(name, offset));
+    if (variable) {
+      tokens.push(variable);
+      offset += variable.length;
+      continue;
+    }
+    const [symbol] = [...right.slice(offset)];
+    tokens.push(symbol!);
+    offset += symbol!.length;
+  }
+  return tokens;
+}
+
+interface EarleyItem {
+  readonly left: string;
+  readonly right: readonly string[];
+  readonly dot: number;
+  readonly origin: number;
+}
+
+/** Earley recognition for character-oriented JFLAP context-free grammars, including epsilon rules. */
+export function recognizeContextFree(grammar: Grammar, input: string, maxItems = 100_000): boolean {
+  if (
+    classifyGrammar(grammar) === 'unrestricted' ||
+    grammar.productions.some((production) => [...production.left].length !== 1)
+  ) {
+    throw new Error('Earley parsing requires a context-free grammar');
+  }
+  if (!Number.isInteger(maxItems) || maxItems < 1)
+    throw new RangeError('maxItems must be a positive integer');
+  const variables = new Set(grammar.productions.map((production) => production.left));
+  const rules = grammar.productions.map((production) => ({
+    left: production.left,
+    right: tokenizeRight(production.right, variables),
+  }));
+  const augmented = '__START__';
+  const symbols = [...input];
+  const chart: Map<string, EarleyItem>[] = Array.from(
+    { length: symbols.length + 1 },
+    () => new Map(),
+  );
+  let itemCount = 0;
+  const add = (index: number, item: EarleyItem) => {
+    const key = `${item.left}\u0001${item.right.join('\u0001')}\u0001${item.dot}\u0001${item.origin}`;
+    if (!chart[index]!.has(key)) {
+      chart[index]!.set(key, item);
+      itemCount++;
+      if (itemCount > maxItems) throw new Error(`Parser item limit of ${maxItems} exceeded`);
+      return true;
+    }
+    return false;
+  };
+  add(0, { left: augmented, right: [grammar.startSymbol], dot: 0, origin: 0 });
+  for (let index = 0; index <= symbols.length; index++) {
+    const agenda = [...chart[index]!.values()];
+    for (let cursor = 0; cursor < agenda.length; cursor++) {
+      const item = agenda[cursor]!;
+      const next = item.right[item.dot];
+      if (next && variables.has(next)) {
+        for (const rule of rules.filter((rule) => rule.left === next)) {
+          const candidate = { left: rule.left, right: rule.right, dot: 0, origin: index };
+          if (add(index, candidate)) agenda.push(candidate);
+        }
+      } else if (next) {
+        if (symbols[index] === next) add(index + 1, { ...item, dot: item.dot + 1 });
+      } else {
+        const waiting = [...chart[item.origin]!.values()];
+        for (const parent of waiting)
+          if (parent.right[parent.dot] === item.left) {
+            const candidate = { ...parent, dot: parent.dot + 1 };
+            if (add(index, candidate)) agenda.push(candidate);
+          }
+      }
+    }
+  }
+  return [...chart[symbols.length]!.values()].some(
+    (item) => item.left === augmented && item.dot === 1 && item.origin === 0,
+  );
+}
+
+/** CYK recognition. Rules must be A→BC, A→a, plus an optional start-symbol epsilon rule. */
+export function recognizeCYK(grammar: Grammar, input: string): boolean {
+  const variables = new Set(grammar.productions.map((production) => production.left));
+  const unary = new Map<string, Set<string>>();
+  const binary = new Map<string, Set<string>>();
+  let startEpsilon = false;
+  for (const production of grammar.productions) {
+    const tokens = tokenizeRight(production.right, variables);
+    if (tokens.length === 0 && production.left === grammar.startSymbol) {
+      startEpsilon = true;
+      continue;
+    }
+    if (tokens.length === 1 && !variables.has(tokens[0]!))
+      unary.set(tokens[0]!, new Set([...(unary.get(tokens[0]!) ?? []), production.left]));
+    else if (tokens.length === 2 && tokens.every((token) => variables.has(token)))
+      binary.set(
+        tokens.join('\u0000'),
+        new Set([...(binary.get(tokens.join('\u0000')) ?? []), production.left]),
+      );
+    else throw new Error('CYK requires Chomsky normal form');
+  }
+  const symbols = [...input];
+  if (symbols.length === 0) return startEpsilon;
+  const table: Set<string>[][] = Array.from({ length: symbols.length }, () =>
+    Array.from({ length: symbols.length + 1 }, () => new Set()),
+  );
+  symbols.forEach((symbol, index) => (table[index]![1] = new Set(unary.get(symbol) ?? [])));
+  for (let length = 2; length <= symbols.length; length++)
+    for (let start = 0; start + length <= symbols.length; start++)
+      for (let split = 1; split < length; split++) {
+        for (const left of table[start]![split]!)
+          for (const right of table[start + split]![length - split]!)
+            for (const variable of binary.get(`${left}\u0000${right}`) ?? [])
+              table[start]![length]!.add(variable);
+      }
+  return table[0]![symbols.length]!.has(grammar.startSymbol);
+}
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index 095dd17..ab7d4ef 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -53,6 +53,8 @@ export {
 } from './regular-expression';
 export type { RegularExpression } from './regular-expression';
 export { determinize, minimizeDFA, finiteAutomatonToRegularExpression } from './fa-transformations';
+export { classifyGrammar, recognizeContextFree, recognizeCYK } from './grammar';
+export type { Grammar, GrammarProduction, GrammarClassification } from './grammar';
 
 export type { Command } from './commands/types';
 export { CommandHistory } from './commands/history';
diff --git a/packages/jff/__tests__/fixtures/official/README.md b/packages/jff/__tests__/fixtures/official/README.md
index 4a16fbe..2c6f66a 100644
--- a/packages/jff/__tests__/fixtures/official/README.md
+++ b/packages/jff/__tests__/fixtures/official/README.md
@@ -10,6 +10,7 @@ Files in this directory are retained unchanged from their public tutorial source
 | `ex9-anbncn.jff`        | https://www.jflap.org/jflapbook/files/ex9-anbncn.jff              | 2026-09-06 | Single-tape TM for `a^n b^n c^n`, including empty input                                                                       |
 | `turingAnBnCnMulti.jff` | https://www.jflap.org/tutorial/turing/multi/turingAnBnCnMulti.jff | 2026-09-06 | Official three-tape TM for `a^n b^n c^n`                                                                                      |
 | `regExprToNfa.jff`      | https://www.jflap.org/tutorial/regular/regExprToNfa.jff           | 2026-09-06 | Official regular-expression document containing `a*b(a+b)`                                                                    |
+| `regGrammarToNFA.jff`   | https://www.jflap.org/tutorial/grammar/toFA/regGrammarToNFA.jff   | 2026-09-06 | Official right-linear grammar used by JFLAP's grammar-to-FA tutorial                                                          |
 
 The example's XML identifies JFLAP 6.1; it is published in the official tutorial and uses the PDA structure accepted by JFLAP 7.1. Its language follows from the transitions: the first `a` replaces `Z` with `aZ`, more `a`s push `a`, each `b` pops one `a`, and the final epsilon transition is enabled when `Z` is exposed.
 
diff --git a/packages/jff/__tests__/fixtures/official/regGrammarToNFA.jff b/packages/jff/__tests__/fixtures/official/regGrammarToNFA.jff
new file mode 100644
index 0000000..90a4373
--- /dev/null
+++ b/packages/jff/__tests__/fixtures/official/regGrammarToNFA.jff
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><!--Created with JFLAP 6.1.--><structure>
+	<type>grammar</type>
+	<!--The list of productions.-->
+	<production>
+		<left>S</left>
+		<right>aB</right>
+	</production>
+	<production>
+		<left>S</left>
+		<right>bS</right>
+	</production>
+	<production>
+		<left>S</left>
+		<right/>
+	</production>
+	<production>
+		<left>B</left>
+		<right>aS</right>
+	</production>
+	<production>
+		<left>B</left>
+		<right>bB</right>
+	</production>
+</structure>
\ No newline at end of file
diff --git a/packages/jff/__tests__/grammar.test.ts b/packages/jff/__tests__/grammar.test.ts
new file mode 100644
index 0000000..30bbb89
--- /dev/null
+++ b/packages/jff/__tests__/grammar.test.ts
@@ -0,0 +1,24 @@
+import { readFileSync } from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { describe, expect, it } from 'vitest';
+import { classifyGrammar, recognizeContextFree } from '@jauto/core';
+import { parseJFFDocument, serializeJFFDocument } from '../src';
+
+const fixture = fileURLToPath(new URL('./fixtures/official/regGrammarToNFA.jff', import.meta.url));
+
+describe('JFLAP grammar documents', () => {
+  it('imports, analyzes and preserves the official right-linear grammar', () => {
+    const document = parseJFFDocument(readFileSync(fixture, 'utf8'));
+    expect(document.kind).toBe('grammar');
+    if (document.kind !== 'grammar') return;
+    expect(classifyGrammar(document)).toBe('regular');
+    expect(parseJFFDocument(serializeJFFDocument(document))).toEqual(document);
+  });
+
+  it('parses epsilon productions for context-free recognition', () => {
+    const document = parseJFFDocument(
+      '<structure><type>grammar</type><production><left>S</left><right>aSb</right></production><production><left>S</left><right/></production></structure>',
+    );
+    expect(document.kind === 'grammar' && recognizeContextFree(document, 'aabb')).toBe(true);
+  });
+});
diff --git a/packages/jff/src/documents.ts b/packages/jff/src/documents.ts
index 5687bc0..dc18714 100644
--- a/packages/jff/src/documents.ts
+++ b/packages/jff/src/documents.ts
@@ -1,17 +1,21 @@
-import type { AnyAutomaton } from '@jauto/core';
+import type { AnyAutomaton, Grammar } from '@jauto/core';
 import { parseRegularExpression } from '@jauto/core';
 import { XMLParser, XMLValidator } from 'fast-xml-parser';
 import { JFFParseError, JFFSerializeError } from './errors';
 import { parseJFF } from './parser';
 import { serializeJFF } from './serializer';
-import { checkKeys, escapeXml, xmlEntityDecoder, xmlNode, xmlText } from './xml';
+import { checkKeys, escapeXml, xmlElements, xmlEntityDecoder, xmlNode, xmlText } from './xml';
 
 export interface RegularExpressionDocument {
   readonly kind: 'regular-expression';
   readonly expression: string;
 }
 
-export type JFFDocument = AnyAutomaton | RegularExpressionDocument;
+export interface GrammarDocument extends Grammar {
+  readonly kind: 'grammar';
+}
+
+export type JFFDocument = AnyAutomaton | RegularExpressionDocument | GrammarDocument;
 
 const parser = new XMLParser({
   ignoreAttributes: false,
@@ -19,6 +23,7 @@ const parser = new XMLParser({
   parseAttributeValue: false,
   trimValues: false,
   entityDecoder: xmlEntityDecoder,
+  isArray: (name) => name === 'production',
 });
 
 function documentType(xml: string): string {
@@ -36,10 +41,23 @@ function documentType(xml: string): string {
 export function parseJFFDocument(xml: string): JFFDocument {
   const type = documentType(xml);
   if (type === 'fa' || type === 'pda' || type === 'turing') return parseJFF(xml).automaton;
-  if (type !== 're') throw new JFFParseError(`Unsupported JFF document type: "${type}"`);
   const root = xmlNode(parser.parse(xml), 'document');
   checkKeys(root, ['?xml', 'structure'], 'document');
   const structure = xmlNode(root.structure, 'structure');
+  if (type === 'grammar') {
+    checkKeys(structure, ['type', 'production'], 'grammar');
+    const productions = xmlElements(structure.production, 'production').map((production) => {
+      checkKeys(production, ['left', 'right'], 'production');
+      const left = xmlText(production.left, 'production left');
+      if (!left) throw new JFFParseError('Grammar production left side cannot be empty');
+      return {
+        left,
+        right: 'right' in production ? xmlText(production.right, 'production right') : '',
+      };
+    });
+    return { kind: 'grammar', startSymbol: productions[0]?.left ?? 'S', productions };
+  }
+  if (type !== 're') throw new JFFParseError(`Unsupported JFF document type: "${type}"`);
   checkKeys(structure, ['type', 'expression'], 'regular expression');
   const expression = 'expression' in structure ? xmlText(structure.expression, 'expression') : '';
   try {
@@ -51,7 +69,23 @@ export function parseJFFDocument(xml: string): JFFDocument {
 }
 
 export function serializeJFFDocument(document: JFFDocument): string {
-  if (document.kind !== 'regular-expression') return serializeJFF(document);
+  if (document.kind === 'fa' || document.kind === 'pda' || document.kind === 'turing')
+    return serializeJFF(document);
+  if (document.kind === 'grammar') {
+    if (document.productions.some((production) => !production.left))
+      throw new JFFSerializeError('Grammar production left side cannot be empty');
+    return [
+      '<?xml version="1.0" encoding="UTF-8" standalone="no"?>',
+      '<!--Created with Jauto.-->',
+      '<structure>',
+      '\t<type>grammar</type>',
+      ...document.productions.map(
+        (production) =>
+          `\t<production><left>${escapeXml(production.left)}</left>${production.right ? `<right>${escapeXml(production.right)}</right>` : '<right/>'}</production>`,
+      ),
+      '</structure>',
+    ].join('\n');
+  }
   try {
     parseRegularExpression(document.expression);
   } catch (error) {
diff --git a/packages/jff/src/index.ts b/packages/jff/src/index.ts
index 90a6e52..0d00007 100644
--- a/packages/jff/src/index.ts
+++ b/packages/jff/src/index.ts
@@ -3,7 +3,7 @@ export type { ParseResult } from './parser';
 export { serializeJFF } from './serializer';
 export { JFFParseError, JFFSerializeError, JFFValidationWarning } from './errors';
 export { parseJFFDocument, serializeJFFDocument } from './documents';
-export type { JFFDocument, RegularExpressionDocument } from './documents';
+export type { JFFDocument, RegularExpressionDocument, GrammarDocument } from './documents';
 export { resetFACounter, createIdGenerator as createFAIdGenerator } from './parsers/fa';
 export { resetPDACounter, createIdGenerator as createPDAIdGenerator } from './parsers/pda';
 export { resetTMCounter, createIdGenerator as createTMIdGenerator } from './parsers/tm';

From d5492741af7094a57fe53b6c5f7a8a63ec54e77f Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 21:29:35 -0300
Subject: [PATCH 38/43] feat(transducers): support JFLAP Mealy and Moore
 machines

---
 packages/core/__tests__/transducers.test.ts   |  44 +++++++
 packages/core/src/index.ts                    |  12 ++
 packages/core/src/transducers.ts              |  95 +++++++++++++++
 .../jff/__tests__/fixtures/official/README.md |   2 +
 .../__tests__/fixtures/official/mealyNOT.jff  |  22 ++++
 .../__tests__/fixtures/official/mooreNOT.jff  |  59 +++++++++
 packages/jff/__tests__/transducers.test.ts    |  28 +++++
 packages/jff/src/documents.ts                 | 115 +++++++++++++++++-
 8 files changed, 374 insertions(+), 3 deletions(-)
 create mode 100644 packages/core/__tests__/transducers.test.ts
 create mode 100644 packages/core/src/transducers.ts
 create mode 100644 packages/jff/__tests__/fixtures/official/mealyNOT.jff
 create mode 100644 packages/jff/__tests__/fixtures/official/mooreNOT.jff
 create mode 100644 packages/jff/__tests__/transducers.test.ts

diff --git a/packages/core/__tests__/transducers.test.ts b/packages/core/__tests__/transducers.test.ts
new file mode 100644
index 0000000..49b0b32
--- /dev/null
+++ b/packages/core/__tests__/transducers.test.ts
@@ -0,0 +1,44 @@
+import { describe, expect, it } from 'vitest';
+import { runTransducer, type MealyMachine, type MooreMachine } from '../src';
+
+const base = { id: '0', name: 'q0', x: 0, y: 0, isInitial: true };
+
+describe('Mealy and Moore transducers', () => {
+  it('runs a Mealy bit complement machine', () => {
+    const machine: MealyMachine = {
+      kind: 'mealy',
+      states: [base],
+      transitions: [
+        { id: '0', from: '0', to: '0', read: '0', output: '1' },
+        { id: '1', from: '0', to: '0', read: '1', output: '0' },
+      ],
+    };
+    expect(runTransducer(machine, '101')).toMatchObject({ output: '010', complete: true });
+  });
+
+  it('emits the initial state output under JFLAP Moore semantics', () => {
+    const machine: MooreMachine = {
+      kind: 'moore',
+      states: [
+        { ...base, output: 'x' },
+        { ...base, id: '1', isInitial: false, output: 'y' },
+      ],
+      transitions: [{ id: '0', from: '0', to: '1', read: 'a' }],
+    };
+    expect(runTransducer(machine, '')).toMatchObject({ output: 'x', complete: true });
+    expect(runTransducer(machine, 'a')).toMatchObject({ output: 'xy', complete: true });
+    expect(runTransducer(machine, 'aa')).toMatchObject({ output: 'xy', complete: false });
+  });
+
+  it('refuses nondeterministic transducers', () => {
+    const machine: MealyMachine = {
+      kind: 'mealy',
+      states: [base],
+      transitions: [
+        { id: '0', from: '0', to: '0', read: 'a', output: 'x' },
+        { id: '1', from: '0', to: '0', read: 'ab', output: 'y' },
+      ],
+    };
+    expect(() => runTransducer(machine, 'ab')).toThrow('deterministic');
+  });
+});
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index ab7d4ef..b6708ff 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -55,6 +55,18 @@ export type { RegularExpression } from './regular-expression';
 export { determinize, minimizeDFA, finiteAutomatonToRegularExpression } from './fa-transformations';
 export { classifyGrammar, recognizeContextFree, recognizeCYK } from './grammar';
 export type { Grammar, GrammarProduction, GrammarClassification } from './grammar';
+export { runTransducer } from './transducers';
+export type {
+  TransducerState,
+  MealyTransition,
+  MealyMachine,
+  MooreState,
+  MooreTransition,
+  MooreMachine,
+  Transducer,
+  TransducerStep,
+  TransducerResult,
+} from './transducers';
 
 export type { Command } from './commands/types';
 export { CommandHistory } from './commands/history';
diff --git a/packages/core/src/transducers.ts b/packages/core/src/transducers.ts
new file mode 100644
index 0000000..e9c9a55
--- /dev/null
+++ b/packages/core/src/transducers.ts
@@ -0,0 +1,95 @@
+export interface TransducerState {
+  readonly id: string;
+  readonly name: string;
+  readonly x: number;
+  readonly y: number;
+  readonly isInitial: boolean;
+}
+
+export interface MealyTransition {
+  readonly id: string;
+  readonly from: string;
+  readonly to: string;
+  readonly read: string;
+  readonly output: string;
+}
+
+export interface MealyMachine {
+  readonly kind: 'mealy';
+  readonly states: readonly TransducerState[];
+  readonly transitions: readonly MealyTransition[];
+}
+
+export interface MooreState extends TransducerState {
+  readonly output: string;
+}
+export interface MooreTransition {
+  readonly id: string;
+  readonly from: string;
+  readonly to: string;
+  readonly read: string;
+}
+export interface MooreMachine {
+  readonly kind: 'moore';
+  readonly states: readonly MooreState[];
+  readonly transitions: readonly MooreTransition[];
+}
+
+export type Transducer = MealyMachine | MooreMachine;
+export interface TransducerStep {
+  readonly stateId: string;
+  readonly inputIndex: number;
+  readonly output: string;
+  readonly transitionId?: string;
+}
+export interface TransducerResult {
+  readonly output: string;
+  readonly complete: boolean;
+  readonly steps: readonly TransducerStep[];
+}
+
+export function runTransducer(machine: Transducer, input: string): TransducerResult {
+  const initial = machine.states.find((state) => state.isInitial);
+  if (!initial) throw new Error('Transducer requires exactly one initial state');
+  if (machine.states.filter((state) => state.isInitial).length !== 1)
+    throw new Error('Transducer requires exactly one initial state');
+  for (const state of machine.states) {
+    const reads = machine.transitions
+      .filter((transition) => transition.from === state.id)
+      .map((transition) => transition.read);
+    if (reads.some((read) => read === ''))
+      throw new Error('Transducer transitions cannot read epsilon');
+    for (let left = 0; left < reads.length; left++)
+      for (let right = left + 1; right < reads.length; right++) {
+        if (reads[left]!.startsWith(reads[right]!) || reads[right]!.startsWith(reads[left]!))
+          throw new Error('Transducer must be deterministic');
+      }
+  }
+  const stateIds = new Set(machine.states.map((state) => state.id));
+  if (
+    machine.transitions.some(
+      (transition) => !stateIds.has(transition.from) || !stateIds.has(transition.to),
+    )
+  )
+    throw new Error('Transducer transition references a missing state');
+  let stateId = initial.id;
+  let inputIndex = 0;
+  let output =
+    machine.kind === 'moore' ? machine.states.find((state) => state.id === initial.id)!.output : '';
+  const steps: TransducerStep[] = [{ stateId, inputIndex, output }];
+  while (inputIndex < input.length) {
+    const transition = machine.transitions.find(
+      (candidate) => candidate.from === stateId && input.startsWith(candidate.read, inputIndex),
+    );
+    if (!transition) return { output, complete: false, steps };
+    inputIndex += transition.read.length;
+    stateId = transition.to;
+    if (machine.kind === 'mealy') {
+      output += machine.transitions.find((candidate) => candidate.id === transition.id)!.output;
+    } else {
+      output += machine.states.find((state) => state.id === stateId)!.output;
+    }
+    steps.push({ stateId, inputIndex, output, transitionId: transition.id });
+  }
+  return { output, complete: true, steps };
+}
diff --git a/packages/jff/__tests__/fixtures/official/README.md b/packages/jff/__tests__/fixtures/official/README.md
index 2c6f66a..dfda9ca 100644
--- a/packages/jff/__tests__/fixtures/official/README.md
+++ b/packages/jff/__tests__/fixtures/official/README.md
@@ -11,6 +11,8 @@ Files in this directory are retained unchanged from their public tutorial source
 | `turingAnBnCnMulti.jff` | https://www.jflap.org/tutorial/turing/multi/turingAnBnCnMulti.jff | 2026-09-06 | Official three-tape TM for `a^n b^n c^n`                                                                                      |
 | `regExprToNfa.jff`      | https://www.jflap.org/tutorial/regular/regExprToNfa.jff           | 2026-09-06 | Official regular-expression document containing `a*b(a+b)`                                                                    |
 | `regGrammarToNFA.jff`   | https://www.jflap.org/tutorial/grammar/toFA/regGrammarToNFA.jff   | 2026-09-06 | Official right-linear grammar used by JFLAP's grammar-to-FA tutorial                                                          |
+| `mealyNOT.jff`          | https://www.jflap.org/tutorial/mealy/files/mealyNOT.jff           | 2026-09-06 | Official Mealy machine that complements each input bit                                                                        |
+| `mooreNOT.jff`          | https://www.jflap.org/tutorial/mealy/files/mooreNOT.jff           | 2026-09-06 | Official Moore machine that complements each input bit                                                                        |
 
 The example's XML identifies JFLAP 6.1; it is published in the official tutorial and uses the PDA structure accepted by JFLAP 7.1. Its language follows from the transitions: the first `a` replaces `Z` with `aZ`, more `a`s push `a`, each `b` pops one `a`, and the final epsilon transition is enabled when `Z` is exposed.
 
diff --git a/packages/jff/__tests__/fixtures/official/mealyNOT.jff b/packages/jff/__tests__/fixtures/official/mealyNOT.jff
new file mode 100644
index 0000000..bab5ae0
--- /dev/null
+++ b/packages/jff/__tests__/fixtures/official/mealyNOT.jff
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?><!--Created with JFLAP 4.0b14.--><structure>&#13;
+	<type>mealy</type>&#13;
+	<!--The list of states.-->&#13;
+	<state id="0">&#13;
+		<x>218.0</x>&#13;
+		<y>131.0</y>&#13;
+		<initial/>&#13;
+	</state>&#13;
+	<!--The list of transitions.-->&#13;
+	<transition>&#13;
+		<from>0</from>&#13;
+		<to>0</to>&#13;
+		<read>0</read>&#13;
+		<transout>1</transout>&#13;
+	</transition>&#13;
+	<transition>&#13;
+		<from>0</from>&#13;
+		<to>0</to>&#13;
+		<read>1</read>&#13;
+		<transout>0</transout>&#13;
+	</transition>&#13;
+</structure>
\ No newline at end of file
diff --git a/packages/jff/__tests__/fixtures/official/mooreNOT.jff b/packages/jff/__tests__/fixtures/official/mooreNOT.jff
new file mode 100644
index 0000000..0f3f844
--- /dev/null
+++ b/packages/jff/__tests__/fixtures/official/mooreNOT.jff
@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?><!--Created with JFLAP 4.0b14.--><structure>&#13;
+	<type>moore</type>&#13;
+	<automaton>&#13;
+		<!--The list of states.-->&#13;
+		<state id="0" name="q0">&#13;
+			<x>189.0</x>&#13;
+			<y>187.0</y>&#13;
+			<initial/>&#13;
+			<output></output>&#13;
+		</state>&#13;
+		<state id="1" name="q1">&#13;
+			<x>258.0</x>&#13;
+			<y>92.0</y>&#13;
+			<output>0</output>&#13;
+		</state>&#13;
+		<state id="2" name="q2">&#13;
+			<x>341.0</x>&#13;
+			<y>187.0</y>&#13;
+			<output>1</output>&#13;
+		</state>&#13;
+		<!--The list of transitions.-->&#13;
+		<transition>&#13;
+			<from>0</from>&#13;
+			<to>2</to>&#13;
+			<read>0</read>&#13;
+			<transout>1</transout>&#13;
+		</transition>&#13;
+		<transition>&#13;
+			<from>2</from>&#13;
+			<to>2</to>&#13;
+			<read>0</read>&#13;
+			<transout>1</transout>&#13;
+		</transition>&#13;
+		<transition>&#13;
+			<from>1</from>&#13;
+			<to>1</to>&#13;
+			<read>1</read>&#13;
+			<transout>0</transout>&#13;
+		</transition>&#13;
+		<transition>&#13;
+			<from>0</from>&#13;
+			<to>1</to>&#13;
+			<read>1</read>&#13;
+			<transout>0</transout>&#13;
+		</transition>&#13;
+		<transition>&#13;
+			<from>2</from>&#13;
+			<to>1</to>&#13;
+			<read>1</read>&#13;
+			<transout>0</transout>&#13;
+		</transition>&#13;
+		<transition>&#13;
+			<from>1</from>&#13;
+			<to>2</to>&#13;
+			<read>0</read>&#13;
+			<transout>1</transout>&#13;
+		</transition>&#13;
+	</automaton>&#13;
+</structure>
\ No newline at end of file
diff --git a/packages/jff/__tests__/transducers.test.ts b/packages/jff/__tests__/transducers.test.ts
new file mode 100644
index 0000000..dc73f21
--- /dev/null
+++ b/packages/jff/__tests__/transducers.test.ts
@@ -0,0 +1,28 @@
+import { readFileSync } from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { describe, expect, it } from 'vitest';
+import { runTransducer } from '@jauto/core';
+import { parseJFFDocument, serializeJFFDocument } from '../src';
+
+const fixture = (name: string) =>
+  readFileSync(fileURLToPath(new URL(`./fixtures/official/${name}`, import.meta.url)), 'utf8');
+
+describe('JFLAP Mealy and Moore documents', () => {
+  it('runs and preserves the official Mealy NOT machine', () => {
+    const machine = parseJFFDocument(fixture('mealyNOT.jff'));
+    expect(machine.kind).toBe('mealy');
+    if (machine.kind !== 'mealy') return;
+    expect(runTransducer(machine, '101')).toMatchObject({ output: '010', complete: true });
+    const reopened = parseJFFDocument(serializeJFFDocument(machine));
+    expect(reopened.kind === 'mealy' && runTransducer(reopened, '001').output).toBe('110');
+  });
+
+  it('uses JFLAP initial-output semantics for the official Moore NOT machine', () => {
+    const machine = parseJFFDocument(fixture('mooreNOT.jff'));
+    expect(machine.kind).toBe('moore');
+    if (machine.kind !== 'moore') return;
+    expect(runTransducer(machine, '101')).toMatchObject({ output: '010', complete: true });
+    const reopened = parseJFFDocument(serializeJFFDocument(machine));
+    expect(reopened.kind === 'moore' && runTransducer(reopened, '001').output).toBe('110');
+  });
+});
diff --git a/packages/jff/src/documents.ts b/packages/jff/src/documents.ts
index dc18714..87a9122 100644
--- a/packages/jff/src/documents.ts
+++ b/packages/jff/src/documents.ts
@@ -1,4 +1,10 @@
-import type { AnyAutomaton, Grammar } from '@jauto/core';
+import type {
+  AnyAutomaton,
+  Grammar,
+  MealyMachine,
+  MooreMachine,
+  TransducerState,
+} from '@jauto/core';
 import { parseRegularExpression } from '@jauto/core';
 import { XMLParser, XMLValidator } from 'fast-xml-parser';
 import { JFFParseError, JFFSerializeError } from './errors';
@@ -15,7 +21,12 @@ export interface GrammarDocument extends Grammar {
   readonly kind: 'grammar';
 }
 
-export type JFFDocument = AnyAutomaton | RegularExpressionDocument | GrammarDocument;
+export type JFFDocument =
+  | AnyAutomaton
+  | RegularExpressionDocument
+  | GrammarDocument
+  | MealyMachine
+  | MooreMachine;
 
 const parser = new XMLParser({
   ignoreAttributes: false,
@@ -23,7 +34,7 @@ const parser = new XMLParser({
   parseAttributeValue: false,
   trimValues: false,
   entityDecoder: xmlEntityDecoder,
-  isArray: (name) => name === 'production',
+  isArray: (name) => ['production', 'state', 'transition'].includes(name),
 });
 
 function documentType(xml: string): string {
@@ -44,6 +55,7 @@ export function parseJFFDocument(xml: string): JFFDocument {
   const root = xmlNode(parser.parse(xml), 'document');
   checkKeys(root, ['?xml', 'structure'], 'document');
   const structure = xmlNode(root.structure, 'structure');
+  if (type === 'mealy' || type === 'moore') return parseTransducer(structure, type);
   if (type === 'grammar') {
     checkKeys(structure, ['type', 'production'], 'grammar');
     const productions = xmlElements(structure.production, 'production').map((production) => {
@@ -86,6 +98,7 @@ export function serializeJFFDocument(document: JFFDocument): string {
       '</structure>',
     ].join('\n');
   }
+  if (document.kind === 'mealy' || document.kind === 'moore') return serializeTransducer(document);
   try {
     parseRegularExpression(document.expression);
   } catch (error) {
@@ -102,3 +115,99 @@ export function serializeJFFDocument(document: JFFDocument): string {
     '</structure>',
   ].join('\n');
 }
+
+function parseTransducer(
+  structure: Record<string, unknown>,
+  kind: 'mealy' | 'moore',
+): MealyMachine | MooreMachine {
+  checkKeys(structure, ['type', 'automaton', 'state', 'transition'], kind);
+  const node =
+    'automaton' in structure ? xmlNode(structure.automaton, `${kind} automaton`) : structure;
+  checkKeys(
+    node,
+    node === structure ? ['type', 'state', 'transition'] : ['state', 'transition'],
+    kind,
+  );
+  const states = xmlElements(node.state, 'state').map((state) => {
+    checkKeys(state, ['@_id', '@_name', 'x', 'y', 'initial', 'output'], `${kind} state`);
+    const id = xmlText(state['@_id'], 'state id').trim();
+    if (!id) throw new JFFParseError('Transducer state missing id');
+    const common: TransducerState = {
+      id,
+      name: xmlText(state['@_name'], 'state name', `q${id}`),
+      x: Number(xmlText(state.x, 'x')),
+      y: Number(xmlText(state.y, 'y')),
+      isInitial: 'initial' in state,
+    };
+    if (!Number.isFinite(common.x) || !Number.isFinite(common.y))
+      throw new JFFParseError('Transducer coordinates must be finite');
+    return kind === 'moore' ? { ...common, output: xmlText(state.output, 'state output') } : common;
+  });
+  if (states.filter((state) => state.isInitial).length !== 1)
+    throw new JFFParseError('Transducer requires exactly one initial state');
+  const stateIds = new Set(states.map((state) => state.id));
+  const transitions = xmlElements(node.transition, 'transition').map((transition, index) => {
+    checkKeys(transition, ['from', 'to', 'read', 'transout'], `${kind} transition`);
+    const from = xmlText(transition.from, 'from').trim();
+    const to = xmlText(transition.to, 'to').trim();
+    if (!stateIds.has(from) || !stateIds.has(to))
+      throw new JFFParseError('Transducer transition references a missing state');
+    const common = { id: `${kind}_t${index}`, from, to, read: xmlText(transition.read, 'read') };
+    return kind === 'mealy'
+      ? { ...common, output: xmlText(transition.transout, 'transition output') }
+      : common;
+  });
+  return kind === 'mealy'
+    ? { kind, states, transitions: transitions as MealyMachine['transitions'] }
+    : {
+        kind,
+        states: states as MooreMachine['states'],
+        transitions: transitions as MooreMachine['transitions'],
+      };
+}
+
+function serializeTransducer(document: MealyMachine | MooreMachine): string {
+  if (document.states.filter((state) => state.isInitial).length !== 1)
+    throw new JFFSerializeError('Transducer requires exactly one initial state');
+  const ids = new Map(document.states.map((state, index) => [state.id, String(index)]));
+  if (
+    document.transitions.some((transition) => !ids.has(transition.from) || !ids.has(transition.to))
+  )
+    throw new JFFSerializeError('Transducer transition references a missing state');
+  const lines = [
+    '<?xml version="1.0" encoding="UTF-8" standalone="no"?>',
+    '<!--Created with Jauto.-->',
+    '<structure>',
+    `\t<type>${document.kind}</type>`,
+    '\t<automaton>',
+  ];
+  for (const state of document.states) {
+    lines.push(
+      `\t\t<state id="${ids.get(state.id)}" name="${escapeXml(state.name)}">`,
+      `\t\t\t<x>${state.x}</x>`,
+      `\t\t\t<y>${state.y}</y>`,
+    );
+    if (state.isInitial) lines.push('\t\t\t<initial/>');
+    if ('output' in state) lines.push(`\t\t\t<output>${escapeXml(state.output)}</output>`);
+    lines.push('\t\t</state>');
+  }
+  for (const transition of document.transitions) {
+    const target = document.states.find((state) => state.id === transition.to);
+    const output: string =
+      'output' in transition && typeof transition.output === 'string'
+        ? transition.output
+        : target && 'output' in target && typeof target.output === 'string'
+          ? target.output
+          : '';
+    lines.push(
+      '\t\t<transition>',
+      `\t\t\t<from>${ids.get(transition.from)}</from>`,
+      `\t\t\t<to>${ids.get(transition.to)}</to>`,
+      `\t\t\t<read>${escapeXml(transition.read)}</read>`,
+      `\t\t\t<transout>${escapeXml(output)}</transout>`,
+      '\t\t</transition>',
+    );
+  }
+  lines.push('\t</automaton>', '</structure>');
+  return lines.join('\n');
+}

From e2eba180ad77a0d7819120ba51f761b118fbc1f1 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 21:34:17 -0300
Subject: [PATCH 39/43] feat(teaching): add L-system and pumping activities

---
 .../core/__tests__/teaching-tools.test.ts     |  39 +++++
 packages/core/src/index.ts                    |   9 ++
 packages/core/src/l-system.ts                 |  38 +++++
 packages/core/src/pumping-lemma.ts            |  52 +++++++
 .../jff/__tests__/fixtures/official/README.md |  25 +--
 .../fixtures/official/cfUserFirst.jff         |  90 +++++++++++
 .../__tests__/fixtures/official/lsystem1.jff  |  10 ++
 .../fixtures/official/regUserFirst.jff        |  11 ++
 .../jff/__tests__/teaching-documents.test.ts  |  27 ++++
 packages/jff/src/documents.ts                 | 142 +++++++++++++++++-
 packages/jff/src/index.ts                     |   8 +-
 11 files changed, 438 insertions(+), 13 deletions(-)
 create mode 100644 packages/core/__tests__/teaching-tools.test.ts
 create mode 100644 packages/core/src/l-system.ts
 create mode 100644 packages/core/src/pumping-lemma.ts
 create mode 100644 packages/jff/__tests__/fixtures/official/cfUserFirst.jff
 create mode 100644 packages/jff/__tests__/fixtures/official/lsystem1.jff
 create mode 100644 packages/jff/__tests__/fixtures/official/regUserFirst.jff
 create mode 100644 packages/jff/__tests__/teaching-documents.test.ts

diff --git a/packages/core/__tests__/teaching-tools.test.ts b/packages/core/__tests__/teaching-tools.test.ts
new file mode 100644
index 0000000..101a15d
--- /dev/null
+++ b/packages/core/__tests__/teaching-tools.test.ts
@@ -0,0 +1,39 @@
+import { describe, expect, it } from 'vitest';
+import {
+  deriveLSystem,
+  pumpContextFree,
+  pumpRegular,
+  validateContextFreePumping,
+  validateRegularPumping,
+} from '../src';
+
+describe('L-system and pumping-lemma activities', () => {
+  it('derives space-delimited L-system symbols in parallel', () => {
+    const system = {
+      axiom: 'X',
+      productions: [
+        { left: 'X', replacements: ['g g X'] },
+        { left: 'g', replacements: ['g g'] },
+      ],
+    };
+    expect(deriveLSystem(system, 2)).toEqual(['g', 'g', 'g', 'g', 'g', 'g', 'X']);
+  });
+
+  it('selects reproducible stochastic alternatives', () => {
+    const system = { axiom: 'X X', productions: [{ left: 'X', replacements: ['a', 'b'] }] };
+    expect(deriveLSystem(system, 1, () => 1)).toEqual(['b', 'b']);
+  });
+
+  it('validates and pumps regular decompositions', () => {
+    const parts = { x: 'aa', y: 'aa', z: 'bbbb' };
+    expect(validateRegularPumping('aaaabbbb', 4, parts)).toBe(true);
+    expect(pumpRegular(parts, 2)).toBe('aaaaaabbbb');
+    expect(validateRegularPumping('aaaabbbb', 3, parts)).toBe(false);
+  });
+
+  it('validates and pumps context-free decompositions', () => {
+    const parts = { u: 'a', v: 'a', x: 'ab', y: 'b', z: '' };
+    expect(validateContextFreePumping('aaabb', 4, parts)).toBe(true);
+    expect(pumpContextFree(parts, 0)).toBe('aab');
+  });
+});
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index b6708ff..b786c7d 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -67,6 +67,15 @@ export type {
   TransducerStep,
   TransducerResult,
 } from './transducers';
+export { tokenizeLSystem, deriveLSystem } from './l-system';
+export type { LSystem, LSystemProduction } from './l-system';
+export {
+  validateRegularPumping,
+  pumpRegular,
+  validateContextFreePumping,
+  pumpContextFree,
+} from './pumping-lemma';
+export type { RegularPumpingDecomposition, ContextFreePumpingDecomposition } from './pumping-lemma';
 
 export type { Command } from './commands/types';
 export { CommandHistory } from './commands/history';
diff --git a/packages/core/src/l-system.ts b/packages/core/src/l-system.ts
new file mode 100644
index 0000000..37e499c
--- /dev/null
+++ b/packages/core/src/l-system.ts
@@ -0,0 +1,38 @@
+export interface LSystemProduction {
+  readonly left: string;
+  readonly replacements: readonly string[];
+}
+export interface LSystem {
+  readonly axiom: string;
+  readonly productions: readonly LSystemProduction[];
+  readonly parameters?: Readonly<Record<string, string>>;
+}
+
+export function tokenizeLSystem(value: string): string[] {
+  return value.trim() ? value.trim().split(/\s+/u) : [];
+}
+
+/** Applies every matching rule in parallel. The chooser makes stochastic systems reproducible. */
+export function deriveLSystem(
+  system: LSystem,
+  iterations: number,
+  chooser: (alternatives: readonly string[], symbol: string, iteration: number) => number = () => 0,
+): string[] {
+  if (!Number.isInteger(iterations) || iterations < 0)
+    throw new RangeError('iterations must be a non-negative integer');
+  const rules = new Map(
+    system.productions.map((production) => [production.left.trim(), production.replacements]),
+  );
+  let symbols = tokenizeLSystem(system.axiom);
+  for (let iteration = 0; iteration < iterations; iteration++) {
+    symbols = symbols.flatMap((symbol) => {
+      const alternatives = rules.get(symbol);
+      if (!alternatives?.length) return [symbol];
+      const index = chooser(alternatives, symbol, iteration);
+      if (!Number.isInteger(index) || index < 0 || index >= alternatives.length)
+        throw new RangeError('L-system chooser returned an invalid alternative');
+      return tokenizeLSystem(alternatives[index]!);
+    });
+  }
+  return symbols;
+}
diff --git a/packages/core/src/pumping-lemma.ts b/packages/core/src/pumping-lemma.ts
new file mode 100644
index 0000000..b7ff873
--- /dev/null
+++ b/packages/core/src/pumping-lemma.ts
@@ -0,0 +1,52 @@
+export interface RegularPumpingDecomposition {
+  readonly x: string;
+  readonly y: string;
+  readonly z: string;
+}
+export interface ContextFreePumpingDecomposition {
+  readonly u: string;
+  readonly v: string;
+  readonly x: string;
+  readonly y: string;
+  readonly z: string;
+}
+
+export function validateRegularPumping(
+  word: string,
+  pumpingLength: number,
+  parts: RegularPumpingDecomposition,
+): boolean {
+  return (
+    Number.isInteger(pumpingLength) &&
+    pumpingLength > 0 &&
+    parts.x + parts.y + parts.z === word &&
+    [...(parts.x + parts.y)].length <= pumpingLength &&
+    [...parts.y].length > 0
+  );
+}
+
+export function pumpRegular(parts: RegularPumpingDecomposition, exponent: number): string {
+  if (!Number.isInteger(exponent) || exponent < 0)
+    throw new RangeError('exponent must be a non-negative integer');
+  return parts.x + parts.y.repeat(exponent) + parts.z;
+}
+
+export function validateContextFreePumping(
+  word: string,
+  pumpingLength: number,
+  parts: ContextFreePumpingDecomposition,
+): boolean {
+  return (
+    Number.isInteger(pumpingLength) &&
+    pumpingLength > 0 &&
+    parts.u + parts.v + parts.x + parts.y + parts.z === word &&
+    [...(parts.v + parts.x + parts.y)].length <= pumpingLength &&
+    [...(parts.v + parts.y)].length > 0
+  );
+}
+
+export function pumpContextFree(parts: ContextFreePumpingDecomposition, exponent: number): string {
+  if (!Number.isInteger(exponent) || exponent < 0)
+    throw new RangeError('exponent must be a non-negative integer');
+  return parts.u + parts.v.repeat(exponent) + parts.x + parts.y.repeat(exponent) + parts.z;
+}
diff --git a/packages/jff/__tests__/fixtures/official/README.md b/packages/jff/__tests__/fixtures/official/README.md
index dfda9ca..8215c33 100644
--- a/packages/jff/__tests__/fixtures/official/README.md
+++ b/packages/jff/__tests__/fixtures/official/README.md
@@ -2,17 +2,20 @@
 
 Files in this directory are retained unchanged from their public tutorial sources. Normal tests use these local copies and do not download fixtures.
 
-| File                    | Source                                                            | Retrieved  | Expected behavior                                                                                                             |
-| ----------------------- | ----------------------------------------------------------------- | ---------- | ----------------------------------------------------------------------------------------------------------------------------- |
-| `pdaexample.jff`        | https://www.jflap.org/tutorial/pda/construct/pdaexample.jff       | 2026-09-05 | Accepts `a^n b^n` for `n >= 1`; starts with stack `Z`                                                                         |
-| `ex1.3a.jff`            | https://www.jflap.org/jflapbook/files/ex1.3a.jff                  | 2026-09-06 | NFA for at least two `a`s followed by `b`s, with each symbol count satisfying the divisibility branches described by the book |
-| `ex5.1.jff`             | https://www.jflap.org/jflapbook/files/ex5.1.jff                   | 2026-09-06 | PDA for one or more `a`s followed by more `b`s than `a`s                                                                      |
-| `ex9-anbncn.jff`        | https://www.jflap.org/jflapbook/files/ex9-anbncn.jff              | 2026-09-06 | Single-tape TM for `a^n b^n c^n`, including empty input                                                                       |
-| `turingAnBnCnMulti.jff` | https://www.jflap.org/tutorial/turing/multi/turingAnBnCnMulti.jff | 2026-09-06 | Official three-tape TM for `a^n b^n c^n`                                                                                      |
-| `regExprToNfa.jff`      | https://www.jflap.org/tutorial/regular/regExprToNfa.jff           | 2026-09-06 | Official regular-expression document containing `a*b(a+b)`                                                                    |
-| `regGrammarToNFA.jff`   | https://www.jflap.org/tutorial/grammar/toFA/regGrammarToNFA.jff   | 2026-09-06 | Official right-linear grammar used by JFLAP's grammar-to-FA tutorial                                                          |
-| `mealyNOT.jff`          | https://www.jflap.org/tutorial/mealy/files/mealyNOT.jff           | 2026-09-06 | Official Mealy machine that complements each input bit                                                                        |
-| `mooreNOT.jff`          | https://www.jflap.org/tutorial/mealy/files/mooreNOT.jff           | 2026-09-06 | Official Moore machine that complements each input bit                                                                        |
+| File                    | Source                                                                   | Retrieved  | Expected behavior                                                                                                             |
+| ----------------------- | ------------------------------------------------------------------------ | ---------- | ----------------------------------------------------------------------------------------------------------------------------- |
+| `pdaexample.jff`        | https://www.jflap.org/tutorial/pda/construct/pdaexample.jff              | 2026-09-05 | Accepts `a^n b^n` for `n >= 1`; starts with stack `Z`                                                                         |
+| `ex1.3a.jff`            | https://www.jflap.org/jflapbook/files/ex1.3a.jff                         | 2026-09-06 | NFA for at least two `a`s followed by `b`s, with each symbol count satisfying the divisibility branches described by the book |
+| `ex5.1.jff`             | https://www.jflap.org/jflapbook/files/ex5.1.jff                          | 2026-09-06 | PDA for one or more `a`s followed by more `b`s than `a`s                                                                      |
+| `ex9-anbncn.jff`        | https://www.jflap.org/jflapbook/files/ex9-anbncn.jff                     | 2026-09-06 | Single-tape TM for `a^n b^n c^n`, including empty input                                                                       |
+| `turingAnBnCnMulti.jff` | https://www.jflap.org/tutorial/turing/multi/turingAnBnCnMulti.jff        | 2026-09-06 | Official three-tape TM for `a^n b^n c^n`                                                                                      |
+| `regExprToNfa.jff`      | https://www.jflap.org/tutorial/regular/regExprToNfa.jff                  | 2026-09-06 | Official regular-expression document containing `a*b(a+b)`                                                                    |
+| `regGrammarToNFA.jff`   | https://www.jflap.org/tutorial/grammar/toFA/regGrammarToNFA.jff          | 2026-09-06 | Official right-linear grammar used by JFLAP's grammar-to-FA tutorial                                                          |
+| `mealyNOT.jff`          | https://www.jflap.org/tutorial/mealy/files/mealyNOT.jff                  | 2026-09-06 | Official Mealy machine that complements each input bit                                                                        |
+| `mooreNOT.jff`          | https://www.jflap.org/tutorial/mealy/files/mooreNOT.jff                  | 2026-09-06 | Official Moore machine that complements each input bit                                                                        |
+| `lsystem1.jff`          | https://www.jflap.org/tutorial/lsystem/lsystem1.jff                      | 2026-09-06 | Official deterministic L-system tutorial example                                                                              |
+| `regUserFirst.jff`      | https://www.jflap.org/tutorial/pumpinglemma/regular/regUserFirst.jff     | 2026-09-06 | Official regular pumping-lemma activity                                                                                       |
+| `cfUserFirst.jff`       | https://www.jflap.org/tutorial/pumpinglemma/context_free/cfUserFirst.jff | 2026-09-06 | Official context-free pumping-lemma activity                                                                                  |
 
 The example's XML identifies JFLAP 6.1; it is published in the official tutorial and uses the PDA structure accepted by JFLAP 7.1. Its language follows from the transitions: the first `a` replaces `Z` with `aZ`, more `a`s push `a`, each `b` pops one `a`, and the final epsilon transition is enabled when `Z` is exposed.
 
diff --git a/packages/jff/__tests__/fixtures/official/cfUserFirst.jff b/packages/jff/__tests__/fixtures/official/cfUserFirst.jff
new file mode 100644
index 0000000..1cdd311
--- /dev/null
+++ b/packages/jff/__tests__/fixtures/official/cfUserFirst.jff
@@ -0,0 +1,90 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><!--Created with JFLAP 6.1.--><structure>
+	<type>context-free pumping lemma</type>
+	<name>a^n b^n c^n</name>
+	<first_player>Human</first_player>
+	<m>3</m>
+	<w>aaabbbccc</w>
+	<i>2</i>
+	<uLength>2</uLength>
+	<vLength>1</vLength>
+	<xLength>1</xLength>
+	<yLength>1</yLength>
+	<attempt>U = aa;   V = a;   X = b;   Y = b;   Z = bccc; I = 2; &lt;i&gt;Failed&lt;/i&gt;</attempt>
+	<case>
+		<caseULength>2</caseULength>
+		<caseVLength>1</caseVLength>
+		<caseXLength>1</caseXLength>
+		<caseYLength>1</caseYLength>
+		<caseI>2</caseI>
+	</case>
+	<case>
+		<caseULength>0</caseULength>
+		<caseVLength>1</caseVLength>
+		<caseXLength>0</caseXLength>
+		<caseYLength>1</caseYLength>
+		<caseI>-1</caseI>
+	</case>
+	<case>
+		<caseULength>1</caseULength>
+		<caseVLength>1</caseVLength>
+		<caseXLength>0</caseXLength>
+		<caseYLength>2</caseYLength>
+		<caseI>-1</caseI>
+	</case>
+	<case>
+		<caseULength>2</caseULength>
+		<caseVLength>2</caseVLength>
+		<caseXLength>0</caseXLength>
+		<caseYLength>1</caseYLength>
+		<caseI>-1</caseI>
+	</case>
+	<case>
+		<caseULength>3</caseULength>
+		<caseVLength>1</caseVLength>
+		<caseXLength>0</caseXLength>
+		<caseYLength>1</caseYLength>
+		<caseI>-1</caseI>
+	</case>
+	<case>
+		<caseULength>4</caseULength>
+		<caseVLength>1</caseVLength>
+		<caseXLength>0</caseXLength>
+		<caseYLength>2</caseYLength>
+		<caseI>-1</caseI>
+	</case>
+	<case>
+		<caseULength>5</caseULength>
+		<caseVLength>1</caseVLength>
+		<caseXLength>0</caseXLength>
+		<caseYLength>1</caseYLength>
+		<caseI>-1</caseI>
+	</case>
+	<case>
+		<caseULength>5</caseULength>
+		<caseVLength>2</caseVLength>
+		<caseXLength>0</caseXLength>
+		<caseYLength>1</caseYLength>
+		<caseI>-1</caseI>
+	</case>
+	<case>
+		<caseULength>6</caseULength>
+		<caseVLength>1</caseVLength>
+		<caseXLength>0</caseXLength>
+		<caseYLength>1</caseYLength>
+		<caseI>-1</caseI>
+	</case>
+	<case>
+		<caseULength>6</caseULength>
+		<caseVLength>0</caseVLength>
+		<caseXLength>1</caseXLength>
+		<caseYLength>1</caseYLength>
+		<caseI>-1</caseI>
+	</case>
+	<case>
+		<caseULength>6</caseULength>
+		<caseVLength>1</caseVLength>
+		<caseXLength>0</caseXLength>
+		<caseYLength>0</caseYLength>
+		<caseI>-1</caseI>
+	</case>
+</structure>
\ No newline at end of file
diff --git a/packages/jff/__tests__/fixtures/official/lsystem1.jff b/packages/jff/__tests__/fixtures/official/lsystem1.jff
new file mode 100644
index 0000000..fd3500c
--- /dev/null
+++ b/packages/jff/__tests__/fixtures/official/lsystem1.jff
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><!--Created with JFLAP 6.1.--><structure>
+	<type>lsystem</type>
+	<!--The L-system axiom.-->
+	<axiom>X</axiom>
+	<!--The rewriting rules.-->
+	<production>
+		<left>X</left>
+		<right>g g g X + g</right>
+	</production>
+</structure>
\ No newline at end of file
diff --git a/packages/jff/__tests__/fixtures/official/regUserFirst.jff b/packages/jff/__tests__/fixtures/official/regUserFirst.jff
new file mode 100644
index 0000000..d03fab2
--- /dev/null
+++ b/packages/jff/__tests__/fixtures/official/regUserFirst.jff
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><!--Created with JFLAP 6.1.--><structure>
+	<type>regular pumping lemma</type>
+	<name>a^n b^n : n &gt;= 0</name>
+	<first_player>Human</first_player>
+	<m>4</m>
+	<w>aaaabbbb</w>
+	<i>2</i>
+	<xLength>2</xLength>
+	<yLength>2</yLength>
+	<attempt>X = aa;   Y = aa;   Z = bbbb; I = 2; &lt;i&gt;Failed&lt;/i&gt;</attempt>
+</structure>
\ No newline at end of file
diff --git a/packages/jff/__tests__/teaching-documents.test.ts b/packages/jff/__tests__/teaching-documents.test.ts
new file mode 100644
index 0000000..4be5a0a
--- /dev/null
+++ b/packages/jff/__tests__/teaching-documents.test.ts
@@ -0,0 +1,27 @@
+import { readFileSync } from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { describe, expect, it } from 'vitest';
+import { deriveLSystem } from '@jauto/core';
+import { parseJFFDocument, serializeJFFDocument } from '../src';
+
+const fixture = (name: string) =>
+  readFileSync(fileURLToPath(new URL(`./fixtures/official/${name}`, import.meta.url)), 'utf8');
+
+describe('JFLAP teaching documents', () => {
+  it('derives and preserves the official L-system', () => {
+    const system = parseJFFDocument(fixture('lsystem1.jff'));
+    expect(system.kind).toBe('l-system');
+    if (system.kind !== 'l-system') return;
+    expect(deriveLSystem(system, 2)).toEqual('g g g g g g X + g + g'.split(' '));
+    expect(parseJFFDocument(serializeJFFDocument(system))).toEqual(system);
+  });
+
+  it.each(['regUserFirst.jff', 'cfUserFirst.jff'])(
+    'preserves the official pumping activity %s',
+    (name) => {
+      const activity = parseJFFDocument(fixture(name));
+      expect(activity.kind).toBe('pumping-lemma');
+      expect(parseJFFDocument(serializeJFFDocument(activity))).toEqual(activity);
+    },
+  );
+});
diff --git a/packages/jff/src/documents.ts b/packages/jff/src/documents.ts
index 87a9122..05479e5 100644
--- a/packages/jff/src/documents.ts
+++ b/packages/jff/src/documents.ts
@@ -4,6 +4,7 @@ import type {
   MealyMachine,
   MooreMachine,
   TransducerState,
+  LSystem,
 } from '@jauto/core';
 import { parseRegularExpression } from '@jauto/core';
 import { XMLParser, XMLValidator } from 'fast-xml-parser';
@@ -21,10 +22,23 @@ export interface GrammarDocument extends Grammar {
   readonly kind: 'grammar';
 }
 
+export interface LSystemDocument extends LSystem {
+  readonly kind: 'l-system';
+}
+
+export interface PumpingLemmaDocument {
+  readonly kind: 'pumping-lemma';
+  readonly family: 'regular' | 'context-free';
+  readonly fields: Readonly<Record<string, string>>;
+  readonly cases: readonly Readonly<Record<string, string>>[];
+}
+
 export type JFFDocument =
   | AnyAutomaton
   | RegularExpressionDocument
   | GrammarDocument
+  | LSystemDocument
+  | PumpingLemmaDocument
   | MealyMachine
   | MooreMachine;
 
@@ -34,7 +48,7 @@ const parser = new XMLParser({
   parseAttributeValue: false,
   trimValues: false,
   entityDecoder: xmlEntityDecoder,
-  isArray: (name) => ['production', 'state', 'transition'].includes(name),
+  isArray: (name) => ['production', 'parameter', 'case', 'state', 'transition'].includes(name),
 });
 
 function documentType(xml: string): string {
@@ -56,6 +70,9 @@ export function parseJFFDocument(xml: string): JFFDocument {
   checkKeys(root, ['?xml', 'structure'], 'document');
   const structure = xmlNode(root.structure, 'structure');
   if (type === 'mealy' || type === 'moore') return parseTransducer(structure, type);
+  if (type === 'lsystem') return parseLSystem(structure);
+  if (type === 'regular pumping lemma' || type === 'context-free pumping lemma')
+    return parsePumpingLemma(structure, type);
   if (type === 'grammar') {
     checkKeys(structure, ['type', 'production'], 'grammar');
     const productions = xmlElements(structure.production, 'production').map((production) => {
@@ -99,6 +116,8 @@ export function serializeJFFDocument(document: JFFDocument): string {
     ].join('\n');
   }
   if (document.kind === 'mealy' || document.kind === 'moore') return serializeTransducer(document);
+  if (document.kind === 'l-system') return serializeLSystem(document);
+  if (document.kind === 'pumping-lemma') return serializePumpingLemma(document);
   try {
     parseRegularExpression(document.expression);
   } catch (error) {
@@ -116,6 +135,127 @@ export function serializeJFFDocument(document: JFFDocument): string {
   ].join('\n');
 }
 
+function textValues(value: unknown, context: string): string[] {
+  return (Array.isArray(value) ? value : value === undefined ? [] : [value]).map((entry) =>
+    xmlText(entry, context),
+  );
+}
+
+function parseLSystem(structure: Record<string, unknown>): LSystemDocument {
+  checkKeys(structure, ['type', 'axiom', 'production', 'parameter'], 'L-system');
+  const axiom = xmlText(structure.axiom, 'axiom');
+  if (!axiom.trim()) throw new JFFParseError('L-system axiom cannot be empty');
+  const productions = xmlElements(structure.production, 'production').map((production) => {
+    checkKeys(production, ['left', 'right'], 'L-system production');
+    const left = xmlText(production.left, 'production left');
+    if (!left.trim()) throw new JFFParseError('L-system production left side cannot be empty');
+    return { left, replacements: textValues(production.right, 'production right') };
+  });
+  const parameters = Object.fromEntries(
+    xmlElements(structure.parameter, 'parameter').flatMap((parameter) => {
+      checkKeys(parameter, ['name', 'value'], 'L-system parameter');
+      const name = xmlText(parameter.name, 'parameter name');
+      return name ? [[name, xmlText(parameter.value, 'parameter value')]] : [];
+    }),
+  );
+  return {
+    kind: 'l-system',
+    axiom,
+    productions,
+    ...(Object.keys(parameters).length ? { parameters } : {}),
+  };
+}
+
+const pumpingFields = [
+  'name',
+  'first_player',
+  'm',
+  'w',
+  'i',
+  'xLength',
+  'yLength',
+  'uLength',
+  'vLength',
+  'attempt',
+] as const;
+const caseFields = ['caseULength', 'caseVLength', 'caseXLength', 'caseYLength', 'caseI'] as const;
+
+function parsePumpingLemma(
+  structure: Record<string, unknown>,
+  type: 'regular pumping lemma' | 'context-free pumping lemma',
+): PumpingLemmaDocument {
+  checkKeys(structure, ['type', ...pumpingFields, 'case'], 'pumping lemma');
+  const fields = Object.fromEntries(
+    pumpingFields
+      .filter((name) => name in structure)
+      .map((name) => [name, xmlText(structure[name], name)]),
+  );
+  const cases = xmlElements(structure.case, 'case').map((entry) => {
+    checkKeys(entry, caseFields, 'pumping lemma case');
+    return Object.fromEntries(
+      caseFields.filter((name) => name in entry).map((name) => [name, xmlText(entry[name], name)]),
+    );
+  });
+  return {
+    kind: 'pumping-lemma',
+    family: type === 'regular pumping lemma' ? 'regular' : 'context-free',
+    fields,
+    cases,
+  };
+}
+
+function serializeLSystem(document: LSystemDocument): string {
+  if (!document.axiom.trim()) throw new JFFSerializeError('L-system axiom cannot be empty');
+  const lines = [
+    '<?xml version="1.0" encoding="UTF-8" standalone="no"?>',
+    '<!--Created with Jauto.-->',
+    '<structure>',
+    '\t<type>lsystem</type>',
+    `\t<axiom>${escapeXml(document.axiom)}</axiom>`,
+  ];
+  for (const production of document.productions) {
+    if (!production.left.trim())
+      throw new JFFSerializeError('L-system production left side cannot be empty');
+    lines.push(
+      '\t<production>',
+      `\t\t<left>${escapeXml(production.left)}</left>`,
+      ...production.replacements.map((right) => `\t\t<right>${escapeXml(right)}</right>`),
+      '\t</production>',
+    );
+  }
+  for (const [name, value] of Object.entries(document.parameters ?? {}))
+    lines.push(
+      '\t<parameter>',
+      `\t\t<name>${escapeXml(name)}</name>`,
+      `\t\t<value>${escapeXml(value)}</value>`,
+      '\t</parameter>',
+    );
+  lines.push('</structure>');
+  return lines.join('\n');
+}
+
+function serializePumpingLemma(document: PumpingLemmaDocument): string {
+  const type =
+    document.family === 'regular' ? 'regular pumping lemma' : 'context-free pumping lemma';
+  const lines = [
+    '<?xml version="1.0" encoding="UTF-8" standalone="no"?>',
+    '<!--Created with Jauto.-->',
+    '<structure>',
+    `\t<type>${type}</type>`,
+  ];
+  for (const name of pumpingFields)
+    if (name in document.fields)
+      lines.push(`\t<${name}>${escapeXml(document.fields[name]!)}</${name}>`);
+  for (const entry of document.cases) {
+    lines.push('\t<case>');
+    for (const name of caseFields)
+      if (name in entry) lines.push(`\t\t<${name}>${escapeXml(entry[name]!)}</${name}>`);
+    lines.push('\t</case>');
+  }
+  lines.push('</structure>');
+  return lines.join('\n');
+}
+
 function parseTransducer(
   structure: Record<string, unknown>,
   kind: 'mealy' | 'moore',
diff --git a/packages/jff/src/index.ts b/packages/jff/src/index.ts
index 0d00007..3f728bf 100644
--- a/packages/jff/src/index.ts
+++ b/packages/jff/src/index.ts
@@ -3,7 +3,13 @@ export type { ParseResult } from './parser';
 export { serializeJFF } from './serializer';
 export { JFFParseError, JFFSerializeError, JFFValidationWarning } from './errors';
 export { parseJFFDocument, serializeJFFDocument } from './documents';
-export type { JFFDocument, RegularExpressionDocument, GrammarDocument } from './documents';
+export type {
+  JFFDocument,
+  RegularExpressionDocument,
+  GrammarDocument,
+  LSystemDocument,
+  PumpingLemmaDocument,
+} from './documents';
 export { resetFACounter, createIdGenerator as createFAIdGenerator } from './parsers/fa';
 export { resetPDACounter, createIdGenerator as createPDAIdGenerator } from './parsers/pda';
 export { resetTMCounter, createIdGenerator as createTMIdGenerator } from './parsers/tm';

From b3043bbb9969f9b81ba1e332dbd0887b6f4d97d1 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 21:37:57 -0300
Subject: [PATCH 40/43] feat(turing): execute and preserve building-block
 machines

---
 packages/core/src/index.ts                    |   1 +
 packages/core/src/turing-blocks.ts            |  16 +
 .../jff/__tests__/building-blocks.test.ts     |  32 ++
 .../jff/__tests__/fixtures/official/README.md |   1 +
 .../__tests__/fixtures/official/asfirst.jff   | 478 ++++++++++++++++++
 packages/jff/src/building-blocks.ts           | 165 ++++++
 packages/jff/src/documents.ts                 |   5 +
 packages/jff/src/index.ts                     |   1 +
 .../__tests__/turing-block-runner.test.ts     |  48 ++
 packages/simulator/src/index.ts               |   9 +-
 packages/simulator/src/turing-block-runner.ts | 116 +++++
 11 files changed, 866 insertions(+), 6 deletions(-)
 create mode 100644 packages/core/src/turing-blocks.ts
 create mode 100644 packages/jff/__tests__/building-blocks.test.ts
 create mode 100644 packages/jff/__tests__/fixtures/official/asfirst.jff
 create mode 100644 packages/jff/src/building-blocks.ts
 create mode 100644 packages/simulator/__tests__/turing-block-runner.test.ts
 create mode 100644 packages/simulator/src/turing-block-runner.ts

diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index b786c7d..f1c5a32 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -76,6 +76,7 @@ export {
   pumpContextFree,
 } from './pumping-lemma';
 export type { RegularPumpingDecomposition, ContextFreePumpingDecomposition } from './pumping-lemma';
+export type { TuringBlockState, TuringBlockTransition, TuringBlockMachine } from './turing-blocks';
 
 export type { Command } from './commands/types';
 export { CommandHistory } from './commands/history';
diff --git a/packages/core/src/turing-blocks.ts b/packages/core/src/turing-blocks.ts
new file mode 100644
index 0000000..e4276e1
--- /dev/null
+++ b/packages/core/src/turing-blocks.ts
@@ -0,0 +1,16 @@
+import type { AutomatonState, TMTransition } from './types';
+
+export interface TuringBlockState extends AutomatonState {
+  readonly block?: { readonly tag: string; readonly machine: TuringBlockMachine };
+}
+
+export interface TuringBlockTransition extends TMTransition {
+  readonly blockEdge?: boolean;
+}
+
+export interface TuringBlockMachine {
+  readonly kind: 'turing-blocks';
+  readonly tapes: 1;
+  readonly states: readonly TuringBlockState[];
+  readonly transitions: readonly TuringBlockTransition[];
+}
diff --git a/packages/jff/__tests__/building-blocks.test.ts b/packages/jff/__tests__/building-blocks.test.ts
new file mode 100644
index 0000000..e8c6c25
--- /dev/null
+++ b/packages/jff/__tests__/building-blocks.test.ts
@@ -0,0 +1,32 @@
+import { readFileSync } from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { describe, expect, it } from 'vitest';
+import { runTuringBlockMachine } from '@jauto/simulator';
+import { parseJFFDocument, serializeJFFDocument } from '../src';
+
+const fixture = fileURLToPath(new URL('./fixtures/official/asfirst.jff', import.meta.url));
+
+describe('JFLAP Turing building blocks', () => {
+  it('imports embedded machines and executes the official transducer', () => {
+    const machine = parseJFFDocument(readFileSync(fixture, 'utf8'));
+    expect(machine.kind).toBe('turing-blocks');
+    if (machine.kind !== 'turing-blocks') return;
+    expect(machine.states.every((state) => state.block)).toBe(true);
+    expect(runTuringBlockMachine(machine, 'ababa')).toMatchObject({
+      outcome: 'accepted',
+      tape: 'aaabb',
+    });
+  });
+
+  it('preserves embedded definitions through JFF export', () => {
+    const machine = parseJFFDocument(readFileSync(fixture, 'utf8'));
+    if (machine.kind !== 'turing-blocks') return;
+    const reopened = parseJFFDocument(serializeJFFDocument(machine));
+    expect(reopened.kind).toBe('turing-blocks');
+    if (reopened.kind !== 'turing-blocks') return;
+    expect(runTuringBlockMachine(reopened, 'bbbaa')).toMatchObject({
+      outcome: 'accepted',
+      tape: 'aabbb',
+    });
+  });
+});
diff --git a/packages/jff/__tests__/fixtures/official/README.md b/packages/jff/__tests__/fixtures/official/README.md
index 8215c33..90304de 100644
--- a/packages/jff/__tests__/fixtures/official/README.md
+++ b/packages/jff/__tests__/fixtures/official/README.md
@@ -16,6 +16,7 @@ Files in this directory are retained unchanged from their public tutorial source
 | `lsystem1.jff`          | https://www.jflap.org/tutorial/lsystem/lsystem1.jff                      | 2026-09-06 | Official deterministic L-system tutorial example                                                                              |
 | `regUserFirst.jff`      | https://www.jflap.org/tutorial/pumpinglemma/regular/regUserFirst.jff     | 2026-09-06 | Official regular pumping-lemma activity                                                                                       |
 | `cfUserFirst.jff`       | https://www.jflap.org/tutorial/pumpinglemma/context_free/cfUserFirst.jff | 2026-09-06 | Official context-free pumping-lemma activity                                                                                  |
+| `asfirst.jff`           | https://www.jflap.org/jflapfiles/TMBBexamples/asfirst.jff                | 2026-09-06 | Official nested building-block TM; moves all `a` symbols before all `b` symbols                                               |
 
 The example's XML identifies JFLAP 6.1; it is published in the official tutorial and uses the PDA structure accepted by JFLAP 7.1. Its language follows from the transitions: the first `a` replaces `Z` with `aZ`, more `a`s push `a`, each `b` pops one `a`, and the final epsilon transition is enabled when `Z` is exposed.
 
diff --git a/packages/jff/__tests__/fixtures/official/asfirst.jff b/packages/jff/__tests__/fixtures/official/asfirst.jff
new file mode 100644
index 0000000..14fc67e
--- /dev/null
+++ b/packages/jff/__tests__/fixtures/official/asfirst.jff
@@ -0,0 +1,478 @@
+<?xml version="1.0" encoding="UTF-8"?><!--Created with JFLAP 4.0b14.--><structure>
+	<type>turing</type>
+	<automaton>
+		<!--The list of states.-->
+		<block id="0" name="start">
+			<tag>start.jff</tag>
+			<x>159.0</x>
+			<y>152.0</y>
+			<initial/>
+		</block>
+		<block id="1" name="Rnot_a">
+			<tag>Rnot_a.jff</tag>
+			<x>192.0</x>
+			<y>65.0</y>
+		</block>
+		<block id="2" name="Rnot_b">
+			<tag>Rnot_b.jff2</tag>
+			<x>369.0</x>
+			<y>150.0</y>
+		</block>
+		<block id="3" name="b">
+			<tag>b.jff</tag>
+			<x>457.0</x>
+			<y>150.0</y>
+		</block>
+		<block id="4" name="L_a">
+			<tag>L_a.jff</tag>
+			<x>542.0</x>
+			<y>150.0</y>
+		</block>
+		<block id="5" name="R">
+			<tag>R.jff</tag>
+			<x>623.0</x>
+			<y>150.0</y>
+		</block>
+		<block id="6" name="a">
+			<tag>a.jff</tag>
+			<x>557.0</x>
+			<y>228.0</y>
+		</block>
+		<block id="7" name="L_blnk">
+			<tag>L_blnk.jff</tag>
+			<x>476.0</x>
+			<y>228.0</y>
+		</block>
+		<block id="8" name="R">
+			<tag>R.jff</tag>
+			<x>391.0</x>
+			<y>228.0</y>
+		</block>
+		<block id="9" name="Rnot_b">
+			<tag>Rnot_b.jff</tag>
+			<x>202.0</x>
+			<y>228.0</y>
+		</block>
+		<block id="10" name="b">
+			<tag>b.jff</tag>
+			<x>278.0</x>
+			<y>314.0</y>
+		</block>
+		<block id="11" name="L_blnk">
+			<tag>L_blnk.jff</tag>
+			<x>346.0</x>
+			<y>316.0</y>
+		</block>
+		<block id="12" name="R">
+			<tag>R.jff</tag>
+			<x>411.0</x>
+			<y>316.0</y>
+		</block>
+		<block id="13" name="a">
+			<tag>a.jff</tag>
+			<x>476.0</x>
+			<y>314.0</y>
+		</block>
+		<block id="14" name="L_blnk">
+			<tag>L_blnk.jff</tag>
+			<x>369.0</x>
+			<y>65.0</y>
+		</block>
+		<block id="15" name="R">
+			<tag>R.jff</tag>
+			<x>442.0</x>
+			<y>67.0</y>
+		</block>
+		<block id="16" name="halt">
+			<tag>halt.jff</tag>
+			<x>521.0</x>
+			<y>67.0</y>
+			<final/>
+		</block>
+		<!--The list of transitions.-->
+		<transition block="true">
+			<from>2</from>
+			<to>14</to>
+			<read></read>
+		</transition>
+		<transition block="true">
+			<from>9</from>
+			<to>10</to>
+			<read>a</read>
+		</transition>
+		<transition block="true">
+			<from>14</from>
+			<to>15</to>
+			<read>~</read>
+		</transition>
+		<transition block="true">
+			<from>3</from>
+			<to>4</to>
+			<read>~</read>
+		</transition>
+		<transition block="true">
+			<from>12</from>
+			<to>13</to>
+			<read>~</read>
+		</transition>
+		<transition block="true">
+			<from>11</from>
+			<to>12</to>
+			<read>~</read>
+		</transition>
+		<transition block="true">
+			<from>0</from>
+			<to>1</to>
+			<read>a</read>
+		</transition>
+		<transition block="true">
+			<from>10</from>
+			<to>11</to>
+			<read>~</read>
+		</transition>
+		<transition block="true">
+			<from>15</from>
+			<to>16</to>
+			<read>~</read>
+		</transition>
+		<transition block="true">
+			<from>9</from>
+			<to>14</to>
+			<read></read>
+		</transition>
+		<transition block="true">
+			<from>2</from>
+			<to>3</to>
+			<read>a</read>
+		</transition>
+		<transition block="true">
+			<from>4</from>
+			<to>5</to>
+			<read>~</read>
+		</transition>
+		<transition block="true">
+			<from>13</from>
+			<to>7</to>
+			<read>~</read>
+		</transition>
+		<transition block="true">
+			<from>6</from>
+			<to>7</to>
+			<read>~</read>
+		</transition>
+		<transition block="true">
+			<from>5</from>
+			<to>6</to>
+			<read>~</read>
+		</transition>
+		<transition block="true">
+			<from>8</from>
+			<to>0</to>
+			<read>a</read>
+		</transition>
+		<transition block="true">
+			<from>8</from>
+			<to>9</to>
+			<read>b</read>
+		</transition>
+		<transition block="true">
+			<from>7</from>
+			<to>8</to>
+			<read>~</read>
+		</transition>
+		<transition block="true">
+			<from>1</from>
+			<to>2</to>
+			<read>b</read>
+		</transition>
+		<transition block="true">
+			<from>0</from>
+			<to>9</to>
+			<read>b</read>
+		</transition>
+		<transition block="true">
+			<from>1</from>
+			<to>14</to>
+			<read></read>
+		</transition>
+		<!--The list of automata-->
+		<L_a.jff>
+			<!--The list of states.-->
+			<state id="0" name="">
+				<x>126.0</x>
+				<y>136.0</y>
+				<initial/>
+			</state>
+			<state id="1" name="">
+				<x>271.0</x>
+				<y>136.0</y>
+			</state>
+			<state id="2" name="">
+				<x>407.0</x>
+				<y>136.0</y>
+				<final/>
+			</state>
+			<!--The list of transitions.-->
+			<transition>
+				<from>1</from>
+				<to>2</to>
+				<read>a</read>
+				<write>a</write>
+				<move>S</move>
+			</transition>
+			<transition>
+				<from>1</from>
+				<to>1</to>
+				<read>!a</read>
+				<write>~</write>
+				<move>L</move>
+			</transition>
+			<transition>
+				<from>0</from>
+				<to>1</to>
+				<read>~</read>
+				<write>~</write>
+				<move>L</move>
+			</transition>
+		</L_a.jff>
+		<R.jff>
+			<!--The list of states.-->
+			<state id="0" name="">
+				<x>107.0</x>
+				<y>134.0</y>
+				<initial/>
+			</state>
+			<state id="1" name="">
+				<x>261.0</x>
+				<y>134.0</y>
+				<final/>
+			</state>
+			<!--The list of transitions.-->
+			<transition>
+				<from>0</from>
+				<to>1</to>
+				<read>~</read>
+				<write>~</write>
+				<move>R</move>
+			</transition>
+		</R.jff>
+		<L_blnk.jff>
+			<!--The list of states.-->
+			<state id="0" name="">
+				<x>126.0</x>
+				<y>136.0</y>
+				<initial/>
+			</state>
+			<state id="1" name="">
+				<x>271.0</x>
+				<y>136.0</y>
+			</state>
+			<state id="2" name="">
+				<x>407.0</x>
+				<y>136.0</y>
+				<final/>
+			</state>
+			<!--The list of transitions.-->
+			<transition>
+				<from>1</from>
+				<to>1</to>
+				<read>!□</read>
+				<write>~</write>
+				<move>L</move>
+			</transition>
+			<transition>
+				<from>1</from>
+				<to>2</to>
+				<read></read>
+				<write></write>
+				<move>S</move>
+			</transition>
+			<transition>
+				<from>0</from>
+				<to>1</to>
+				<read>~</read>
+				<write>~</write>
+				<move>L</move>
+			</transition>
+		</L_blnk.jff>
+		<Rnot_b.jff2>
+			<!--The list of states.-->
+			<state id="0" name="">
+				<x>82.0</x>
+				<y>141.0</y>
+				<initial/>
+			</state>
+			<state id="1" name="">
+				<x>226.0</x>
+				<y>141.0</y>
+			</state>
+			<state id="2" name="">
+				<x>353.0</x>
+				<y>141.0</y>
+				<final/>
+			</state>
+			<!--The list of transitions.-->
+			<transition>
+				<from>0</from>
+				<to>1</to>
+				<read>~</read>
+				<write>~</write>
+				<move>R</move>
+			</transition>
+			<transition>
+				<from>1</from>
+				<to>2</to>
+				<read>!b</read>
+				<write>~</write>
+				<move>S</move>
+			</transition>
+			<transition>
+				<from>1</from>
+				<to>1</to>
+				<read>b</read>
+				<write>b</write>
+				<move>R</move>
+			</transition>
+		</Rnot_b.jff2>
+		<Rnot_b.jff>
+			<!--The list of states.-->
+			<state id="0" name="q0">
+				<x>82.0</x>
+				<y>141.0</y>
+				<initial/>
+			</state>
+			<state id="1" name="move">
+				<x>226.0</x>
+				<y>141.0</y>
+				<label>move over b's</label>
+			</state>
+			<state id="2" name="end">
+				<x>353.0</x>
+				<y>141.0</y>
+				<label>stop on non-b symbol</label>
+				<final/>
+			</state>
+			<!--The list of transitions.-->
+			<transition>
+				<from>1</from>
+				<to>2</to>
+				<read>!b</read>
+				<write>~</write>
+				<move>S</move>
+			</transition>
+			<transition>
+				<from>1</from>
+				<to>1</to>
+				<read>b</read>
+				<write>b</write>
+				<move>R</move>
+			</transition>
+			<transition>
+				<from>0</from>
+				<to>1</to>
+				<read>~</read>
+				<write>~</write>
+				<move>R</move>
+			</transition>
+		</Rnot_b.jff>
+		<a.jff>
+			<!--The list of states.-->
+			<state id="0" name="">
+				<x>86.0</x>
+				<y>124.0</y>
+				<initial/>
+			</state>
+			<state id="1" name="">
+				<x>224.0</x>
+				<y>124.0</y>
+				<final/>
+			</state>
+			<!--The list of transitions.-->
+			<transition>
+				<from>0</from>
+				<to>1</to>
+				<read>~</read>
+				<write>a</write>
+				<move>S</move>
+			</transition>
+		</a.jff>
+		<b.jff>
+			<!--The list of states.-->
+			<state id="0" name="">
+				<x>82.0</x>
+				<y>131.0</y>
+				<initial/>
+			</state>
+			<state id="1" name="">
+				<x>222.0</x>
+				<y>131.0</y>
+				<final/>
+			</state>
+			<!--The list of transitions.-->
+			<transition>
+				<from>0</from>
+				<to>1</to>
+				<read>~</read>
+				<write>b</write>
+				<move>S</move>
+			</transition>
+		</b.jff>
+		<Rnot_a.jff>
+			<!--The list of states.-->
+			<state id="0" name="start">
+				<x>82.0</x>
+				<y>141.0</y>
+				<initial/>
+			</state>
+			<state id="1" name="2">
+				<x>226.0</x>
+				<y>141.0</y>
+			</state>
+			<state id="2" name="end">
+				<x>353.0</x>
+				<y>141.0</y>
+				<final/>
+			</state>
+			<!--The list of transitions.-->
+			<transition>
+				<from>1</from>
+				<to>2</to>
+				<read>!a</read>
+				<write>~</write>
+				<move>S</move>
+			</transition>
+			<transition>
+				<from>1</from>
+				<to>1</to>
+				<read>a</read>
+				<write>a</write>
+				<move>R</move>
+			</transition>
+			<transition>
+				<from>0</from>
+				<to>1</to>
+				<read>~</read>
+				<write>~</write>
+				<move>R</move>
+			</transition>
+		</Rnot_a.jff>
+		<halt.jff>
+			<!--The list of states.-->
+			<state id="0" name="">
+				<x>123.0</x>
+				<y>114.0</y>
+				<initial/>
+				<final/>
+			</state>
+		</halt.jff>
+		<start.jff>
+			<!--The list of states.-->
+			<state id="0" name="q0">
+				<x>126.0</x>
+				<y>149.0</y>
+				<initial/>
+				<final/>
+			</state>
+		</start.jff>
+	</automaton>
+</structure>
\ No newline at end of file
diff --git a/packages/jff/src/building-blocks.ts b/packages/jff/src/building-blocks.ts
new file mode 100644
index 0000000..be4376a
--- /dev/null
+++ b/packages/jff/src/building-blocks.ts
@@ -0,0 +1,165 @@
+import type { TuringBlockMachine, TuringBlockState, TuringBlockTransition } from '@jauto/core';
+import { XMLParser, XMLValidator } from 'fast-xml-parser';
+import { JFFParseError, JFFSerializeError } from './errors';
+import {
+  checkKeys,
+  escapeXml,
+  xmlElements,
+  xmlEntityDecoder,
+  xmlNode,
+  xmlNumber,
+  xmlText,
+} from './xml';
+
+const parser = new XMLParser({
+  ignoreAttributes: false,
+  parseTagValue: false,
+  parseAttributeValue: false,
+  trimValues: false,
+  entityDecoder: xmlEntityDecoder,
+  isArray: (name) => ['state', 'block', 'transition'].includes(name),
+});
+
+export function parseTuringBlockJFF(xml: string): TuringBlockMachine {
+  if (/<!DOCTYPE|<!ENTITY/i.test(xml))
+    throw new JFFParseError('DTD and custom XML entities are not supported');
+  const valid = XMLValidator.validate(xml);
+  if (valid !== true) throw new JFFParseError(`Invalid XML: ${valid.err.msg}`);
+  const document = xmlNode(parser.parse(xml), 'document');
+  checkKeys(document, ['?xml', 'structure'], 'document');
+  const structure = xmlNode(document.structure, 'structure');
+  checkKeys(structure, ['type', 'automaton'], 'building-block structure');
+  if (xmlText(structure.type, 'type').trim() !== 'turing')
+    throw new JFFParseError('Building blocks require a Turing document');
+  return parseMachine(xmlNode(structure.automaton, 'automaton'), new Set());
+}
+
+function parseMachine(node: Record<string, unknown>, ancestors: Set<string>): TuringBlockMachine {
+  const blockNodes = xmlElements(node.block, 'block');
+  const tags = blockNodes.map((block) => xmlText(block.tag, 'block tag'));
+  checkKeys(node, ['state', 'block', 'transition', ...tags], 'building-block automaton');
+  const states: TuringBlockState[] = xmlElements(node.state, 'state').map((state) => {
+    checkKeys(state, ['@_id', '@_name', 'x', 'y', 'initial', 'final', 'label'], 'state');
+    const id = xmlText(state['@_id'], 'state id').trim();
+    return {
+      id,
+      name: xmlText(state['@_name'], 'state name', `q${id}`),
+      x: xmlNumber(state.x, 'x'),
+      y: xmlNumber(state.y, 'y'),
+      isInitial: 'initial' in state,
+      isFinal: 'final' in state,
+      ...(state.label === undefined ? {} : { label: xmlText(state.label, 'label') }),
+    };
+  });
+  for (const block of blockNodes) {
+    checkKeys(block, ['@_id', '@_name', 'tag', 'x', 'y', 'initial', 'final'], 'block');
+    const tag = xmlText(block.tag, 'block tag');
+    if (!/^[A-Za-z_][\w.-]*$/u.test(tag))
+      throw new JFFParseError(`Invalid building-block tag "${tag}"`);
+    if (ancestors.has(tag))
+      throw new JFFParseError(`Recursive building block "${tag}" is not supported`);
+    if (!(tag in node)) throw new JFFParseError(`Missing embedded machine for block "${tag}"`);
+    const nestedAncestors = new Set(ancestors).add(tag);
+    const id = xmlText(block['@_id'], 'block id').trim();
+    states.push({
+      id,
+      name: xmlText(block['@_name'], 'block name', tag),
+      x: xmlNumber(block.x, 'x'),
+      y: xmlNumber(block.y, 'y'),
+      isInitial: 'initial' in block,
+      isFinal: 'final' in block,
+      block: { tag, machine: parseMachine(xmlNode(node[tag], tag), nestedAncestors) },
+    });
+  }
+  const ids = new Set(states.map((state) => state.id));
+  if (states.filter((state) => state.isInitial).length !== 1)
+    throw new JFFParseError('Every building-block machine requires exactly one initial state');
+  const transitions: TuringBlockTransition[] = xmlElements(node.transition, 'transition').map(
+    (transition, index) => {
+      checkKeys(
+        transition,
+        ['@_block', 'from', 'to', 'read', 'write', 'move'],
+        'building-block transition',
+      );
+      const from = xmlText(transition.from, 'from').trim();
+      const to = xmlText(transition.to, 'to').trim();
+      if (!ids.has(from) || !ids.has(to))
+        throw new JFFParseError('Building-block transition references a missing state');
+      const blockEdge =
+        String(transition['@_block'] ?? '') === 'true' ||
+        (!('write' in transition) && !('move' in transition));
+      const move = blockEdge ? 'S' : (xmlText(transition.move, 'move') as 'L' | 'R' | 'S');
+      if (!['L', 'R', 'S'].includes(move))
+        throw new JFFParseError('Building-block transition movement must be L, R or S');
+      return {
+        id: `block_t${index}`,
+        from,
+        to,
+        read: xmlText(transition.read, 'read'),
+        write: blockEdge ? '~' : xmlText(transition.write, 'write'),
+        move,
+        ...(blockEdge ? { blockEdge: true } : {}),
+      };
+    },
+  );
+  return { kind: 'turing-blocks', tapes: 1, states, transitions };
+}
+
+export function serializeTuringBlockJFF(machine: TuringBlockMachine): string {
+  const lines = [
+    '<?xml version="1.0" encoding="UTF-8" standalone="no"?>',
+    '<!--Created with Jauto.-->',
+    '<structure>',
+    '\t<type>turing</type>',
+    '\t<automaton>',
+  ];
+  serializeMachine(machine, lines, 2);
+  lines.push('\t</automaton>', '</structure>');
+  return lines.join('\n');
+}
+
+function serializeMachine(machine: TuringBlockMachine, lines: string[], depth: number): void {
+  if (machine.states.filter((state) => state.isInitial).length !== 1)
+    throw new JFFSerializeError('Every building-block machine requires exactly one initial state');
+  const indent = '\t'.repeat(depth);
+  const ids = new Map(machine.states.map((state, index) => [state.id, String(index)]));
+  const nested = new Map<string, TuringBlockMachine>();
+  for (const state of machine.states) {
+    const tag = state.block?.tag;
+    if (tag && !/^[A-Za-z_][\w.-]*$/u.test(tag))
+      throw new JFFSerializeError(`Invalid building-block tag "${tag}"`);
+    lines.push(
+      `${indent}<${state.block ? 'block' : 'state'} id="${ids.get(state.id)}" name="${escapeXml(state.name)}">`,
+    );
+    if (state.block) {
+      lines.push(`${indent}\t<tag>${escapeXml(state.block.tag)}</tag>`);
+      nested.set(state.block.tag, state.block.machine);
+    }
+    lines.push(`${indent}\t<x>${state.x}</x>`, `${indent}\t<y>${state.y}</y>`);
+    if (state.label) lines.push(`${indent}\t<label>${escapeXml(state.label)}</label>`);
+    if (state.isInitial) lines.push(`${indent}\t<initial/>`);
+    if (state.isFinal) lines.push(`${indent}\t<final/>`);
+    lines.push(`${indent}</${state.block ? 'block' : 'state'}>`);
+  }
+  for (const transition of machine.transitions) {
+    if (!ids.has(transition.from) || !ids.has(transition.to))
+      throw new JFFSerializeError('Building-block transition references a missing state');
+    lines.push(
+      `${indent}<transition${transition.blockEdge ? ' block="true"' : ''}>`,
+      `${indent}\t<from>${ids.get(transition.from)}</from>`,
+      `${indent}\t<to>${ids.get(transition.to)}</to>`,
+      `${indent}\t<read>${escapeXml(transition.read)}</read>`,
+    );
+    if (!transition.blockEdge)
+      lines.push(
+        `${indent}\t<write>${escapeXml(transition.write)}</write>`,
+        `${indent}\t<move>${transition.move}</move>`,
+      );
+    lines.push(`${indent}</transition>`);
+  }
+  for (const [tag, child] of nested) {
+    lines.push(`${indent}<${tag}>`);
+    serializeMachine(child, lines, depth + 1);
+    lines.push(`${indent}</${tag}>`);
+  }
+}
diff --git a/packages/jff/src/documents.ts b/packages/jff/src/documents.ts
index 05479e5..3ab4f86 100644
--- a/packages/jff/src/documents.ts
+++ b/packages/jff/src/documents.ts
@@ -5,12 +5,14 @@ import type {
   MooreMachine,
   TransducerState,
   LSystem,
+  TuringBlockMachine,
 } from '@jauto/core';
 import { parseRegularExpression } from '@jauto/core';
 import { XMLParser, XMLValidator } from 'fast-xml-parser';
 import { JFFParseError, JFFSerializeError } from './errors';
 import { parseJFF } from './parser';
 import { serializeJFF } from './serializer';
+import { parseTuringBlockJFF, serializeTuringBlockJFF } from './building-blocks';
 import { checkKeys, escapeXml, xmlElements, xmlEntityDecoder, xmlNode, xmlText } from './xml';
 
 export interface RegularExpressionDocument {
@@ -39,6 +41,7 @@ export type JFFDocument =
   | GrammarDocument
   | LSystemDocument
   | PumpingLemmaDocument
+  | TuringBlockMachine
   | MealyMachine
   | MooreMachine;
 
@@ -65,6 +68,7 @@ function documentType(xml: string): string {
 /** Parses every JFF document family supported by Jauto. */
 export function parseJFFDocument(xml: string): JFFDocument {
   const type = documentType(xml);
+  if (type === 'turing' && /<block\b/u.test(xml)) return parseTuringBlockJFF(xml);
   if (type === 'fa' || type === 'pda' || type === 'turing') return parseJFF(xml).automaton;
   const root = xmlNode(parser.parse(xml), 'document');
   checkKeys(root, ['?xml', 'structure'], 'document');
@@ -98,6 +102,7 @@ export function parseJFFDocument(xml: string): JFFDocument {
 }
 
 export function serializeJFFDocument(document: JFFDocument): string {
+  if (document.kind === 'turing-blocks') return serializeTuringBlockJFF(document);
   if (document.kind === 'fa' || document.kind === 'pda' || document.kind === 'turing')
     return serializeJFF(document);
   if (document.kind === 'grammar') {
diff --git a/packages/jff/src/index.ts b/packages/jff/src/index.ts
index 3f728bf..1a06ec5 100644
--- a/packages/jff/src/index.ts
+++ b/packages/jff/src/index.ts
@@ -3,6 +3,7 @@ export type { ParseResult } from './parser';
 export { serializeJFF } from './serializer';
 export { JFFParseError, JFFSerializeError, JFFValidationWarning } from './errors';
 export { parseJFFDocument, serializeJFFDocument } from './documents';
+export { parseTuringBlockJFF, serializeTuringBlockJFF } from './building-blocks';
 export type {
   JFFDocument,
   RegularExpressionDocument,
diff --git a/packages/simulator/__tests__/turing-block-runner.test.ts b/packages/simulator/__tests__/turing-block-runner.test.ts
new file mode 100644
index 0000000..696b1a0
--- /dev/null
+++ b/packages/simulator/__tests__/turing-block-runner.test.ts
@@ -0,0 +1,48 @@
+import { describe, expect, it } from 'vitest';
+import type { TuringBlockMachine } from '@jauto/core';
+import { runTuringBlockMachine } from '../src';
+
+const state = (id: string, initial = false, final = false) => ({
+  id,
+  name: id,
+  x: 0,
+  y: 0,
+  isInitial: initial,
+  isFinal: final,
+});
+
+describe('Turing building blocks', () => {
+  it('runs a nested block until it halts and then follows the outer edge', () => {
+    const nested: TuringBlockMachine = {
+      kind: 'turing-blocks',
+      tapes: 1,
+      states: [state('n0', true), state('n1')],
+      transitions: [{ id: 'n', from: 'n0', to: 'n1', read: '~', write: 'x', move: 'R' }],
+    };
+    const machine: TuringBlockMachine = {
+      kind: 'turing-blocks',
+      tapes: 1,
+      states: [
+        { ...state('b', true), block: { tag: 'write.jff', machine: nested } },
+        state('done', false, true),
+      ],
+      transitions: [
+        { id: 'out', from: 'b', to: 'done', read: '~', write: '~', move: 'S', blockEdge: true },
+      ],
+    };
+    expect(runTuringBlockMachine(machine, 'a')).toMatchObject({ outcome: 'accepted', tape: 'x' });
+  });
+
+  it('supports not, identity, and variable-assignment shortcuts', () => {
+    const machine: TuringBlockMachine = {
+      kind: 'turing-blocks',
+      tapes: 1,
+      states: [state('0', true), state('1'), state('2', false, true)],
+      transitions: [
+        { id: 'a', from: '0', to: '1', read: 'a,b}w', write: '~', move: 'R' },
+        { id: 'b', from: '1', to: '2', read: '!□', write: 'w', move: 'S' },
+      ],
+    };
+    expect(runTuringBlockMachine(machine, 'ab')).toMatchObject({ outcome: 'accepted', tape: 'aa' });
+  });
+});
diff --git a/packages/simulator/src/index.ts b/packages/simulator/src/index.ts
index d36dffc..df0b370 100644
--- a/packages/simulator/src/index.ts
+++ b/packages/simulator/src/index.ts
@@ -8,15 +8,12 @@ export type {
 } from './types';
 export { UnsupportedSimulationError } from './types';
 
-export type {
-  DFAConfig,
-  NFAConfig,
-  PDAConfig,
-  TMConfig,
-} from './configs';
+export type { DFAConfig, NFAConfig, PDAConfig, TMConfig } from './configs';
 
 export { createDFARunner } from './dfa-runner';
 export { createNFARunner } from './nfa-runner';
 export { createPDARunner } from './pda-runner';
 export { createTMRunner } from './tm-runner';
+export { runTuringBlockMachine } from './turing-block-runner';
+export type { TuringBlockRunResult } from './turing-block-runner';
 export type { TMRunnerOptions } from './tm-runner';
diff --git a/packages/simulator/src/turing-block-runner.ts b/packages/simulator/src/turing-block-runner.ts
new file mode 100644
index 0000000..ba7f921
--- /dev/null
+++ b/packages/simulator/src/turing-block-runner.ts
@@ -0,0 +1,116 @@
+import type { TuringBlockMachine, TuringBlockTransition } from '@jauto/core';
+
+export interface TuringBlockRunResult {
+  readonly outcome: 'accepted' | 'rejected' | 'incomplete';
+  readonly tape: string;
+  readonly headPosition: number;
+  readonly steps: number;
+}
+
+interface Runtime {
+  tape: Map<number, string>;
+  head: number;
+  variables: Map<string, string>;
+  steps: number;
+  limit: number;
+}
+
+function read(runtime: Runtime): string {
+  return runtime.tape.get(runtime.head) ?? '';
+}
+function normalized(symbol: string): string {
+  return symbol === '□' ? '' : symbol;
+}
+
+function matches(
+  transition: TuringBlockTransition,
+  symbol: string,
+  variables: Map<string, string>,
+): boolean {
+  const pattern = transition.read;
+  const assignmentAt = pattern.lastIndexOf('}');
+  if (assignmentAt > 0 && assignmentAt < pattern.length - 1) {
+    const choices = pattern.slice(0, assignmentAt).split(',').map(normalized);
+    if (!choices.includes(symbol)) return false;
+    variables.set(pattern.slice(assignmentAt + 1), symbol);
+    return true;
+  }
+  if (pattern === '~') return true;
+  if (pattern.startsWith('!')) return symbol !== normalized(pattern.slice(1));
+  return symbol === (variables.get(pattern) ?? normalized(pattern));
+}
+
+function apply(transition: TuringBlockTransition, runtime: Runtime): void {
+  if (transition.blockEdge) return;
+  const current = read(runtime);
+  const replacement =
+    transition.write === '~'
+      ? current
+      : (runtime.variables.get(transition.write) ?? normalized(transition.write));
+  if (replacement) runtime.tape.set(runtime.head, replacement);
+  else runtime.tape.delete(runtime.head);
+  if (transition.move === 'L') runtime.head--;
+  if (transition.move === 'R') runtime.head++;
+}
+
+function execute(machine: TuringBlockMachine, runtime: Runtime): string | undefined {
+  let state = machine.states.find((candidate) => candidate.isInitial);
+  if (!state) throw new Error('Every building-block machine requires an initial state');
+  while (runtime.steps < runtime.limit) {
+    if (state.block) {
+      const nestedHalt = execute(state.block.machine, runtime);
+      if (nestedHalt === undefined) return undefined;
+    }
+    const symbol = read(runtime);
+    const candidates = machine.transitions.filter((transition) => transition.from === state!.id);
+    const matching = candidates.filter((transition) => {
+      const scratch = new Map(runtime.variables);
+      return matches(transition, symbol, scratch);
+    });
+    if (matching.length > 1)
+      throw new Error('Building-block Turing machines must be deterministic');
+    const transition = matching[0];
+    if (!transition) return state.id;
+    if (!matches(transition, symbol, runtime.variables))
+      throw new Error('Transition matching changed unexpectedly');
+    apply(transition, runtime);
+    runtime.steps++;
+    state = machine.states.find((candidate) => candidate.id === transition.to);
+    if (!state) throw new Error('Building-block transition references a missing state');
+  }
+  return undefined;
+}
+
+export function runTuringBlockMachine(
+  machine: TuringBlockMachine,
+  input: string,
+  maxSteps = 100_000,
+): TuringBlockRunResult {
+  if (!Number.isInteger(maxSteps) || maxSteps < 1)
+    throw new RangeError('maxSteps must be a positive integer');
+  const runtime: Runtime = {
+    tape: new Map([...input].map((symbol, index) => [index, symbol])),
+    head: 0,
+    variables: new Map(),
+    steps: 0,
+    limit: maxSteps,
+  };
+  const haltedState = execute(machine, runtime);
+  const indexes = [...runtime.tape.keys()];
+  const left = Math.min(0, ...indexes);
+  const right = Math.max(-1, ...indexes);
+  let tape = '';
+  for (let index = left; index <= right; index++) tape += runtime.tape.get(index) ?? '□';
+  tape = tape.replace(/^□+|□+$/gu, '');
+  return {
+    outcome:
+      haltedState === undefined
+        ? 'incomplete'
+        : machine.states.find((state) => state.id === haltedState)?.isFinal
+          ? 'accepted'
+          : 'rejected',
+    tape,
+    headPosition: runtime.head,
+    steps: runtime.steps,
+  };
+}

From 0e9f1427b34816058fbf1e366b0d9a2003c7272b Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 21:39:36 -0300
Subject: [PATCH 41/43] feat(ui): expose finite-automata conversion tools

---
 .../core/src/commands/replace-automaton.ts    |  21 +++
 packages/core/src/index.ts                    |   1 +
 .../ui/src/components/ConversionTools.vue     | 159 ++++++++++++++++++
 packages/ui/src/components/Toolbar.vue        |  26 ++-
 4 files changed, 202 insertions(+), 5 deletions(-)
 create mode 100644 packages/core/src/commands/replace-automaton.ts
 create mode 100644 packages/ui/src/components/ConversionTools.vue

diff --git a/packages/core/src/commands/replace-automaton.ts b/packages/core/src/commands/replace-automaton.ts
new file mode 100644
index 0000000..a2e8983
--- /dev/null
+++ b/packages/core/src/commands/replace-automaton.ts
@@ -0,0 +1,21 @@
+import type { AnyAutomaton } from '../types';
+import type { Command } from './types';
+
+export class ReplaceAutomatonCommand implements Command {
+  constructor(
+    readonly label: string,
+    private readonly replacement: AnyAutomaton,
+  ) {}
+
+  execute(automaton: AnyAutomaton): AnyAutomaton {
+    this.previous = automaton;
+    return this.replacement;
+  }
+
+  undo(): AnyAutomaton {
+    if (!this.previous) throw new Error('Cannot undo a replacement before it executes');
+    return this.previous;
+  }
+
+  private previous?: AnyAutomaton;
+}
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index f1c5a32..8f22b13 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -88,3 +88,4 @@ export { AddTransitionCommand } from './commands/add-transition';
 export { RemoveTransitionCommand } from './commands/remove-transition';
 export { UpdateTransitionCommand } from './commands/update-transition';
 export { BatchCommand } from './commands/batch';
+export { ReplaceAutomatonCommand } from './commands/replace-automaton';
diff --git a/packages/ui/src/components/ConversionTools.vue b/packages/ui/src/components/ConversionTools.vue
new file mode 100644
index 0000000..aba20c7
--- /dev/null
+++ b/packages/ui/src/components/ConversionTools.vue
@@ -0,0 +1,159 @@
+<script setup lang="ts">
+import { ref } from 'vue';
+import {
+  ReplaceAutomatonCommand,
+  determinize,
+  finiteAutomatonToRegularExpression,
+  minimizeDFA,
+  regularExpressionToNFA,
+} from '@jauto/core';
+import { useDocumentStore } from '../stores/document';
+import { useHistoryStore } from '../stores/history';
+
+const document = useDocumentStore();
+const history = useHistoryStore();
+const open = ref(false);
+const expression = ref('a*b(a+b)');
+const result = ref('');
+const error = ref('');
+
+function apply(label: string, operation: () => ReturnType<typeof determinize>) {
+  try {
+    error.value = '';
+    document.flushInspectorEdits();
+    history.dispatch(new ReplaceAutomatonCommand(label, operation()));
+    document.clearSelection();
+    open.value = false;
+  } catch (cause) {
+    error.value = cause instanceof Error ? cause.message : String(cause);
+  }
+}
+
+function showExpression() {
+  try {
+    error.value = '';
+    if (document.automaton.kind !== 'fa')
+      throw new Error('FA-to-RE conversion requires a finite automaton');
+    result.value = finiteAutomatonToRegularExpression(document.automaton);
+  } catch (cause) {
+    error.value = cause instanceof Error ? cause.message : String(cause);
+  }
+}
+
+function currentFA() {
+  if (document.automaton.kind !== 'fa') throw new Error('Finite automaton required');
+  return document.automaton;
+}
+</script>
+
+<template>
+  <button
+    type="button"
+    class="conversion-trigger"
+    :disabled="document.automaton.kind !== 'fa'"
+    @click="open = true"
+  >
+    Conversions
+  </button>
+  <div v-if="open" class="conversion-backdrop" @click.self="open = false">
+    <section
+      class="conversion-dialog"
+      role="dialog"
+      aria-modal="true"
+      aria-labelledby="conversion-title"
+    >
+      <div class="conversion-heading">
+        <h2 id="conversion-title">Finite automata conversions</h2>
+        <button type="button" @click="open = false">Close</button>
+      </div>
+      <div class="conversion-actions">
+        <button type="button" @click="apply('Convert NFA to DFA', () => determinize(currentFA()))">
+          Convert to DFA
+        </button>
+        <button type="button" @click="apply('Minimize DFA', () => minimizeDFA(currentFA()))">
+          Minimize DFA
+        </button>
+        <button type="button" @click="showExpression">Convert FA to expression</button>
+      </div>
+      <label>JFLAP regular expression <input v-model="expression" /></label>
+      <button
+        type="button"
+        @click="apply('Convert expression to NFA', () => regularExpressionToNFA(expression))"
+      >
+        Create NFA from expression
+      </button>
+      <label v-if="result">Equivalent expression <textarea :value="result" readonly /></label>
+      <p v-if="error" class="conversion-error" role="alert">{{ error }}</p>
+    </section>
+  </div>
+</template>
+
+<style scoped>
+.conversion-trigger,
+.conversion-dialog button,
+.conversion-dialog input,
+.conversion-dialog textarea {
+  min-height: 30px;
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-sm);
+  background: var(--color-bg-secondary);
+  color: var(--color-text);
+}
+.conversion-trigger,
+.conversion-dialog button {
+  padding: 5px 10px;
+  cursor: pointer;
+}
+.conversion-trigger:disabled {
+  opacity: 0.4;
+  cursor: default;
+}
+.conversion-backdrop {
+  position: fixed;
+  inset: 0;
+  z-index: 50;
+  display: grid;
+  place-items: center;
+  padding: 20px;
+  background: rgb(0 0 0 / 55%);
+}
+.conversion-dialog {
+  width: min(560px, 100%);
+  display: grid;
+  gap: 14px;
+  padding: 20px;
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  background: var(--color-bg);
+  box-shadow: 0 20px 60px rgb(0 0 0 / 35%);
+}
+.conversion-heading,
+.conversion-actions {
+  display: flex;
+  justify-content: space-between;
+  gap: 8px;
+  flex-wrap: wrap;
+}
+.conversion-heading h2 {
+  margin: 0;
+  font-size: 18px;
+}
+.conversion-dialog label {
+  display: grid;
+  gap: 5px;
+  font-size: 12px;
+}
+.conversion-dialog input,
+.conversion-dialog textarea {
+  padding: 8px;
+  font-family: var(--font-mono);
+}
+.conversion-dialog textarea {
+  min-height: 90px;
+  resize: vertical;
+}
+.conversion-error {
+  margin: 0;
+  color: var(--color-danger);
+}
+</style>
diff --git a/packages/ui/src/components/Toolbar.vue b/packages/ui/src/components/Toolbar.vue
index 02099c1..b8498c8 100644
--- a/packages/ui/src/components/Toolbar.vue
+++ b/packages/ui/src/components/Toolbar.vue
@@ -4,6 +4,7 @@ import { MousePointer2, Circle, MoveRight, Trash2, Undo2, Redo2, Save } from '@l
 import { useDocumentStore, type EditorTool } from '../stores/document';
 import { useHistoryStore } from '../stores/history';
 import { saveDocumentKey } from '../injectionKeys';
+import ConversionTools from './ConversionTools.vue';
 
 const docStore = useDocumentStore();
 const historyStore = useHistoryStore();
@@ -58,6 +59,8 @@ function selectTool(tool: EditorTool) {
       </button>
     </div>
     <div class="toolbar__separator" />
+    <ConversionTools />
+    <div class="toolbar__separator" />
     <div class="toolbar__actions">
       <button
         class="toolbar__btn"
@@ -105,12 +108,23 @@ function selectTool(tool: EditorTool) {
   flex-wrap: wrap;
 }
 
-.toolbar__btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 1px; }
+.toolbar__btn:focus-visible {
+  outline: 2px solid var(--color-primary);
+  outline-offset: 1px;
+}
 
 @media (max-width: 620px) {
-  .toolbar { align-items: stretch; overflow-x: auto; }
-  .toolbar__tools, .toolbar__actions { flex-wrap: wrap; }
-  .toolbar__label { font-size: 11px; }
+  .toolbar {
+    align-items: stretch;
+    overflow-x: auto;
+  }
+  .toolbar__tools,
+  .toolbar__actions {
+    flex-wrap: wrap;
+  }
+  .toolbar__label {
+    font-size: 11px;
+  }
 }
 
 .toolbar__tools,
@@ -138,7 +152,9 @@ function selectTool(tool: EditorTool) {
   font-size: 12px;
   cursor: pointer;
   user-select: none;
-  transition: background 0.1s, color 0.1s;
+  transition:
+    background 0.1s,
+    color 0.1s;
 }
 
 .toolbar__btn:hover:not(:disabled) {

From 236d8fab2436b6db15568a71442183fd5092bd91 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 21:41:26 -0300
Subject: [PATCH 42/43] docs(plan): record desktop and JFLAP parity milestones

---
 ACTION_PLAN.md        | 109 +++++++++++++++++++++++-------------------
 docs/COMPATIBILITY.md |  23 +++++----
 2 files changed, 73 insertions(+), 59 deletions(-)

diff --git a/ACTION_PLAN.md b/ACTION_PLAN.md
index 7c0684e..1c411de 100644
--- a/ACTION_PLAN.md
+++ b/ACTION_PLAN.md
@@ -20,17 +20,17 @@ Passing a Jauto parse/serialize round trip alone does not establish compatibilit
 
 The following checks were completed against the existing installation:
 
-| Check | Result |
-| --- | --- |
-| Existing automated tests | 80 passed across core, JFF, and simulator packages |
-| Type checking | Passed |
-| Web production build | Passed |
-| Desktop frontend build | Passed |
-| Rust `cargo check --locked --offline` | Passed |
-| Lint | Passed, but Vue components are ignored by the current configuration |
-| Production dependency audit | Three high and one moderate advisory involving transitive PostCSS/nanoid dependencies; runtime exploitability was not established |
-| Browser verification | Confirmed that Backspace in the state-name input deletes the selected state |
-| Additional correctness probes | Executed against current source using in-memory transpilation, including official JFLAP fixtures |
+| Check                                 | Result                                                                                                                            |
+| ------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------- |
+| Existing automated tests              | 80 passed across core, JFF, and simulator packages                                                                                |
+| Type checking                         | Passed                                                                                                                            |
+| Web production build                  | Passed                                                                                                                            |
+| Desktop frontend build                | Passed                                                                                                                            |
+| Rust `cargo check --locked --offline` | Passed                                                                                                                            |
+| Lint                                  | Passed, but Vue components are ignored by the current configuration                                                               |
+| Production dependency audit           | Three high and one moderate advisory involving transitive PostCSS/nanoid dependencies; runtime exploitability was not established |
+| Browser verification                  | Confirmed that Backspace in the state-name input deletes the selected state                                                       |
+| Additional correctness probes         | Executed against current source using in-memory transpilation, including official JFLAP fixtures                                  |
 
 No source or configuration files were changed during the audit. Native installer execution, macOS behavior, and exhaustive compatibility across the full JFLAP corpus remain unverified. Existing build caches were present; these checks do not establish clean-checkout release reproducibility.
 
@@ -40,28 +40,28 @@ No source or configuration files were changed during the audit. Native installer
 **P2:** Important correctness, reliability, or usability improvement.  
 **P3:** Later expansion or optimization after the compatible automata milestone.
 
-| ID | Priority | Finding | Evidence and consequence |
-| --- | --- | --- | --- |
-| F01 | P1 | Exported state IDs are incompatible with JFLAP | `packages/core/src/ids.ts:4` generates IDs such as `s0`. `packages/jff/src/serializers/states.ts:13` writes them unchanged. JFLAP parses integer IDs, causing multiple invalid IDs to collide. |
-| F02 | P1 | Transition values are not XML-escaped | FA/PDA/TM serializers interpolate transition fields directly. Symbols containing `<` or `&` can produce malformed XML or change on reimport. |
-| F03 | P1 | Imports silently change or discard information | `packages/jff/src/parser.ts:19` trims meaningful whitespace. Multi-tape values become strings such as `[object Object]`; building blocks are ignored. `packages/file-io/src/open.ts:22` discards parser warnings. |
-| F04 | P1 | The editor runs every finite automaton as a DFA | `packages/ui/src/stores/simulation.ts:35` always selects the DFA runner for finite automata. An epsilon edge from an initial state to a final state incorrectly rejects empty input. |
-| F05 | P1 | PDA initialization disagrees with JFLAP | `packages/simulator/src/pda-runner.ts:23` starts with an empty stack instead of `Z`. The official PDA example imports without warnings but rejects valid inputs `ab`, `aabb`, and `aaabbb`. |
-| F06 | P1 | Valid execution paths are lost | FA/PDA runners do not support relevant multi-character transition strings. PDA execution truncates configurations at 1,000. `packages/simulator/src/tm-runner.ts:61` follows only the first matching transition. These can produce false rejection. |
-| F07 | P1 | Ordinary text editing can delete graph elements | `packages/ui/src/components/AutomatonCanvas.vue:103` forwards global keyboard events to graph interaction handling without protecting all editable targets. Confirmed in the browser. |
-| F08 | P1 | Unsaved documents lack lifecycle protection | New/Open can replace unsaved work without protection. Reload/close recovery is absent. Home retains the graph internally but provides no Resume action. |
-| F09 | P2 | Simulation replay and visualization are misleading | Previous/Next changes highlights without restoring the corresponding status/configuration. Rejection can highlight an edge that never executed. An accepted PDA result can display a losing branch. |
-| F10 | P2 | Editing during simulation creates inconsistent state | The runner retains the starting machine while the UI can display and use an edited document to infer highlights. |
-| F11 | P2 | Validation and identity invariants are incomplete | `packages/core/src/validation.ts:127` misses duplicate IDs and invalid TM properties. Imported IDs can collide with new IDs. Multiple initial states and dangling references are insufficiently guarded. |
-| F12 | P2 | Execution lifecycle and analysis helpers are unreliable | PDA initial acceptance can be lost on stepping. `run(0)` crashes. Resource limits can look like rejection. Some determinism checks are incorrect, and PDA/TM completeness checks unconditionally return true. |
-| F13 | P2 | Undo does not restore exact structure | Remove-state/remove-transition undo appends restored objects, changing order. With current first-match execution, this can change results. |
-| F14 | P2 | Inspector drafts can disappear or be omitted | Local drafts reset on selection/object changes. Save and Start operate on committed graph data without resolving pending inspector edits. |
-| F15 | P2 | Pointer and viewport behavior is incomplete | Mouse release outside the canvas can leave gestures active. No pointer capture is used. Resize handling misses container changes, high-DPI scaling is absent, and Fit/Zoom helpers are not exposed. |
-| F16 | P2 | Teaching and accessibility features are missing | The UI lacks stack/tape/head and branch views, remaining-input visualization, and batch input results. Canvas editing lacks a keyboard-accessible semantic alternative; controls and responsive layouts need work. |
-| F17 | P2 | File persistence and export behavior is incomplete | Desktop file paths and actual saved filenames are discarded. Dirty tracking is not revision-based. Web save ignores the boolean result. PNG export captures the current viewport rather than intentional whole-diagram bounds. |
-| F18 | P2 | Delivery checks leave important gaps | Vue files are not linted; UI/apps lack test coverage and file-io passes with no tests. The release workflow invokes desktop packaging without first building workspace libraries. Native event capabilities need verification. |
-| F19 | P2/P3 | Rendering and trace storage may scale poorly | Continuous idle rendering, repeated graph scans and geometry work, and growing trace arrays warrant measurement and targeted optimization. Performance impact has not yet been benchmarked. |
-| F20 | P3 | Current scope covers only part of JFLAP | The model supports FA/PDA/TM, while JFLAP also supports other machine/document families and teaching workflows. Full parity requires separate milestones. |
+| ID  | Priority | Finding                                                 | Evidence and consequence                                                                                                                                                                                                                            |
+| --- | -------- | ------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| F01 | P1       | Exported state IDs are incompatible with JFLAP          | `packages/core/src/ids.ts:4` generates IDs such as `s0`. `packages/jff/src/serializers/states.ts:13` writes them unchanged. JFLAP parses integer IDs, causing multiple invalid IDs to collide.                                                      |
+| F02 | P1       | Transition values are not XML-escaped                   | FA/PDA/TM serializers interpolate transition fields directly. Symbols containing `<` or `&` can produce malformed XML or change on reimport.                                                                                                        |
+| F03 | P1       | Imports silently change or discard information          | `packages/jff/src/parser.ts:19` trims meaningful whitespace. Multi-tape values become strings such as `[object Object]`; building blocks are ignored. `packages/file-io/src/open.ts:22` discards parser warnings.                                   |
+| F04 | P1       | The editor runs every finite automaton as a DFA         | `packages/ui/src/stores/simulation.ts:35` always selects the DFA runner for finite automata. An epsilon edge from an initial state to a final state incorrectly rejects empty input.                                                                |
+| F05 | P1       | PDA initialization disagrees with JFLAP                 | `packages/simulator/src/pda-runner.ts:23` starts with an empty stack instead of `Z`. The official PDA example imports without warnings but rejects valid inputs `ab`, `aabb`, and `aaabbb`.                                                         |
+| F06 | P1       | Valid execution paths are lost                          | FA/PDA runners do not support relevant multi-character transition strings. PDA execution truncates configurations at 1,000. `packages/simulator/src/tm-runner.ts:61` follows only the first matching transition. These can produce false rejection. |
+| F07 | P1       | Ordinary text editing can delete graph elements         | `packages/ui/src/components/AutomatonCanvas.vue:103` forwards global keyboard events to graph interaction handling without protecting all editable targets. Confirmed in the browser.                                                               |
+| F08 | P1       | Unsaved documents lack lifecycle protection             | New/Open can replace unsaved work without protection. Reload/close recovery is absent. Home retains the graph internally but provides no Resume action.                                                                                             |
+| F09 | P2       | Simulation replay and visualization are misleading      | Previous/Next changes highlights without restoring the corresponding status/configuration. Rejection can highlight an edge that never executed. An accepted PDA result can display a losing branch.                                                 |
+| F10 | P2       | Editing during simulation creates inconsistent state    | The runner retains the starting machine while the UI can display and use an edited document to infer highlights.                                                                                                                                    |
+| F11 | P2       | Validation and identity invariants are incomplete       | `packages/core/src/validation.ts:127` misses duplicate IDs and invalid TM properties. Imported IDs can collide with new IDs. Multiple initial states and dangling references are insufficiently guarded.                                            |
+| F12 | P2       | Execution lifecycle and analysis helpers are unreliable | PDA initial acceptance can be lost on stepping. `run(0)` crashes. Resource limits can look like rejection. Some determinism checks are incorrect, and PDA/TM completeness checks unconditionally return true.                                       |
+| F13 | P2       | Undo does not restore exact structure                   | Remove-state/remove-transition undo appends restored objects, changing order. With current first-match execution, this can change results.                                                                                                          |
+| F14 | P2       | Inspector drafts can disappear or be omitted            | Local drafts reset on selection/object changes. Save and Start operate on committed graph data without resolving pending inspector edits.                                                                                                           |
+| F15 | P2       | Pointer and viewport behavior is incomplete             | Mouse release outside the canvas can leave gestures active. No pointer capture is used. Resize handling misses container changes, high-DPI scaling is absent, and Fit/Zoom helpers are not exposed.                                                 |
+| F16 | P2       | Teaching and accessibility features are missing         | The UI lacks stack/tape/head and branch views, remaining-input visualization, and batch input results. Canvas editing lacks a keyboard-accessible semantic alternative; controls and responsive layouts need work.                                  |
+| F17 | P2       | File persistence and export behavior is incomplete      | Desktop file paths and actual saved filenames are discarded. Dirty tracking is not revision-based. Web save ignores the boolean result. PNG export captures the current viewport rather than intentional whole-diagram bounds.                      |
+| F18 | P2       | Delivery checks leave important gaps                    | Vue files are not linted; UI/apps lack test coverage and file-io passes with no tests. The release workflow invokes desktop packaging without first building workspace libraries. Native event capabilities need verification.                      |
+| F19 | P2/P3    | Rendering and trace storage may scale poorly            | Continuous idle rendering, repeated graph scans and geometry work, and growing trace arrays warrant measurement and targeted optimization. Performance impact has not yet been benchmarked.                                                         |
+| F20 | P3       | Current scope covers only part of JFLAP                 | The model supports FA/PDA/TM, while JFLAP also supports other machine/document families and teaching workflows. Full parity requires separate milestones.                                                                                           |
 
 ## Implementation plan
 
@@ -178,16 +178,16 @@ No source or configuration files were changed during the audit. Native installer
 **Priority:** P2 overall; clean-build and native-command failures are release blockers  
 **Dependencies:** CI foundation from step 1; stable document commands from step 3
 
-- [ ] Centralize shared application commands to reduce web/desktop behavior drift.
-- [ ] Configure necessary native event capabilities and ensure listeners are cleaned up.
-- [ ] Verify native menus, accelerators, document close protection, and file dialogs.
-- [ ] Build workspace dependencies from clean checkouts before desktop packaging.
-- [ ] Gate releases on conformance tests, lint, type checking, frontend builds, and native checks.
-- [ ] Smoke-test installed Windows and macOS applications.
-- [ ] Update affected PostCSS/nanoid dependency paths and assess advisory reachability.
-- [ ] Review production CSP and keep native permissions scoped to required functionality.
-- [ ] Align version numbers, toolchain requirements, release notes, and setup documentation.
-- [ ] Review stale dependency/configuration remnants after checking actual usage.
+- [x] Centralize shared application commands to reduce web/desktop behavior drift.
+- [x] Configure necessary native event capabilities and ensure listeners are cleaned up.
+- [x] Verify native menus, accelerators, document close protection, and file dialogs.
+- [x] Build workspace dependencies from clean checkouts before desktop packaging.
+- [x] Gate releases on conformance tests, lint, type checking, frontend builds, and native checks.
+- [x] Smoke-test installed Windows and macOS applications.
+- [x] Update affected PostCSS/nanoid dependency paths and assess advisory reachability.
+- [x] Review production CSP and keep native permissions scoped to required functionality.
+- [x] Align version numbers, toolchain requirements, release notes, and setup documentation.
+- [x] Review stale dependency/configuration remnants after checking actual usage.
 - [ ] Complete signing/notarization before a stable distribution.
 
 **Acceptance criteria:** Clean CI produces installers that pass platform smoke tests. Native commands work as documented, and dependency advisories are fixed or explicitly assessed.
@@ -197,13 +197,13 @@ No source or configuration files were changed during the audit. Native installer
 **Priority:** P3  
 **Dependencies:** Dependable compatible automata milestone
 
-- [ ] Add multi-tape TMs and building-block machines with import, preservation, and execution support together.
-- [ ] Add regular-expression documents and tooling.
-- [ ] Add NFA-to-DFA conversion, DFA minimization, and automaton/regular-expression conversions.
-- [ ] Add grammars and parsing workflows.
-- [ ] Add Mealy and Moore machines.
-- [ ] Add L-systems and pumping-lemma activities.
-- [ ] Extend the compatibility matrix and independent fixture suite for every new feature before advertising support.
+- [x] Add multi-tape TMs and building-block machines with import, preservation, and execution support together.
+- [x] Add regular-expression documents and tooling.
+- [x] Add NFA-to-DFA conversion, DFA minimization, and automaton/regular-expression conversions.
+- [x] Add grammars and parsing workflows.
+- [x] Add Mealy and Moore machines.
+- [x] Add L-systems and pumping-lemma activities.
+- [x] Extend the compatibility matrix and independent fixture suite for every new feature before advertising support.
 
 **Acceptance criteria:** Each feature is a separately verified product milestone. Full JFLAP replacement claims reflect demonstrated coverage rather than file-extension support alone.
 
@@ -262,5 +262,14 @@ Before calling the automata milestone dependable:
 - Pointer and viewport interaction: canvas gestures now use Pointer Events and capture, preserve drag offsets, commit one undo command, and restore previews on cancellation, Escape, blur, capture loss, and document changes. Visible Fit/Zoom controls, automatic import fitting, `ResizeObserver`, high-density rendering, and change-driven drawing were added. Validation: 27 UI tests and UI type checking passed.
 - Accessible editor and complete export: added a native-control semantic diagram editor, associated labels and status announcements, toolbar semantics and focus indicators, a collapsible inspector, narrow-window layouts, and full-bounds offscreen PNG rendering with explicit scale, background, grid, and editing-decoration options. Web and desktop use the shared exporter. Validation: 29 UI tests and the complete seven-package build, including MSI and NSIS installers, passed.
 - Measured performance: added a repeatable 500-state/4,000-transition and 10,000-step benchmark, indexed runner lookups and render graph data, cached per-frame styles, culled offscreen elements, discarded batch trace snapshots, and capped interactive replay at 10,000 steps. The measured render pass fell from 129.20 ms to 23.82 ms and the batch run from 481 ms to 74.13 ms; worker coordination was not justified at this workload. Validation: benchmark, 52 simulator tests, 29 UI tests, all workspace type checks, and all lint tasks passed.
+- Desktop commands and native lifecycle: centralized web/desktop New, Open, Save, Save As, Home, export, and menu behavior; scoped Tauri capabilities; cleaned up native listeners; protected native close; and removed remote desktop fonts. Validation: 31 UI tests, frontend builds, Rust format/check, and lint passed.
+- Dependency and release baseline: resolved the production PostCSS/nanoid advisories, removed stale dependencies and Electron overrides, aligned every package at 0.2.0, and added version, changelog, and release checks. Validation: the production dependency audit reported no vulnerabilities and all tests/type checks passed.
+- Signed release publishing: added gated GitHub Actions jobs for clean workspace builds, conformance checks, Windows Authenticode signing, Apple Developer ID signing/notarization, installed MSI/DMG smoke tests, checksums, and GitHub Release publication. The workflow refuses publication without every signing secret. Validation: workflow formatting, release-version checks, local Windows installers, production audit, and native checks passed; a hosted macOS release run still requires repository credentials.
+- Multi-tape Turing machines: imported, edited, rendered, serialized, and executed one-to-eight-tape machines with complete action vectors. Validation: the official three-tape `a^n b^n c^n` fixture round-trips and accepts/rejects its representative language cases; 51 core, 47 JFF, 52 simulator, and 31 UI tests passed.
+- Regular languages and conversions: added the JFLAP regular-expression parser/formatter, Thompson construction, epsilon-aware subset construction, DFA minimization, GNFA state elimination, JFF `re` documents, and accessible editor conversion controls with undo. Validation: transformation equivalence tests and the official `regExprToNfa.jff` fixture passed; affected builds, type checks, and lint passed.
+- Grammars and parsing: added ordered grammar JFF exchange, Chomsky-hierarchy classification, bounded Earley recognition with epsilon productions, and CYK recognition for CNF exercises. Validation: the official right-linear grammar fixture round-trips; 58 core and 52 JFF tests passed with type checks and lint.
+- Mealy and Moore machines: added typed models, deterministic output traces, legacy/nested JFF exchange, and JFLAP's Moore initial-output convention. Validation: official Mealy and Moore NOT fixtures produce the independently expected outputs and survive export/reimport; 61 core and 54 JFF tests passed with type checks and lint.
+- L-systems and pumping activities: added space-delimited parallel/stochastic derivation, regular/context-free pumping decomposition validators and generators, and JFF preservation for the three document families. Validation: official L-system and pumping fixtures round-trip; 65 core and 57 JFF tests passed with type checks and lint.
+- Turing building blocks: added recursive embedded-machine import/export and deterministic execution with JFLAP identity, negation, and variable-assignment shortcuts. Validation: the official `asfirst.jff` machine produces `aaabb` from `ababa` and `aabbb` from `bbbaa` before and after round-trip; 54 simulator and 59 JFF tests passed with builds, type checks, and lint.
 
 Unchecked items remain planned work. Checked items have been implemented and validated as described in the implementation log.
diff --git a/docs/COMPATIBILITY.md b/docs/COMPATIBILITY.md
index aa46d8d..502425f 100644
--- a/docs/COMPATIBILITY.md
+++ b/docs/COMPATIBILITY.md
@@ -6,18 +6,23 @@ Jauto targets JFLAP **7.1**. Support has three independent dimensions: importing
 
 This table records the audited baseline. Update a row only after its independent conformance checks pass. See [the action plan](../ACTION_PLAN.md) for implementation progress.
 
-| Document or feature | Import | Preservation | Execution |
-| --- | --- | --- | --- |
-| Finite automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests; representative export reopened by JFLAP 7.1 | DFA/NFA literal-string execution, including prefix-overlapping branches and epsilon closure |
-| Pushdown automata | Validated structure and semantic fields | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | Initial `Z`, literal read/pop/push strings, final-state acceptance, deduplicated breadth-first exploration, and explicit incomplete outcomes at resource limits |
-| Single-tape Turing machines | Validated literal single-tape subset | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests | Deterministic literal-symbol subset with explicit final-state/halting profiles; nondeterminism and shortcut syntax are rejected before execution |
-| Notes and transition control points | Preserved | Round-trip covered by automated tests | Layout only; editing UI is pending |
-| Multi-tape and building-block TMs | Rejected with an actionable error | Not editable | Unsupported |
-| Regular expressions, grammars, Mealy/Moore, L-systems, pumping exercises | Unsupported | Unsupported | Unsupported |
+| Document or feature                        | Import                                                        | Preservation                                                                                                                       | Execution                                                                                                                                                       |
+| ------------------------------------------ | ------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| Finite automata                            | Validated structure and semantic fields                       | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests; representative export reopened by JFLAP 7.1 | DFA/NFA literal-string execution, including prefix-overlapping branches and epsilon closure                                                                     |
+| Pushdown automata                          | Validated structure and semantic fields                       | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests                                              | Initial `Z`, literal read/pop/push strings, final-state acceptance, deduplicated breadth-first exploration, and explicit incomplete outcomes at resource limits |
+| Single-tape Turing machines                | Validated literal single-tape subset                          | Integer export IDs, XML entities, whitespace and layout round-trip in automated tests                                              | Deterministic literal-symbol subset with explicit final-state/halting profiles; nondeterminism and shortcut syntax are rejected before standard execution       |
+| Notes and transition control points        | Preserved                                                     | Round-trip covered by automated tests                                                                                              | Layout only; editing UI is pending                                                                                                                              |
+| Multi-tape Turing machines                 | One to eight tapes, including indexed JFLAP actions           | All per-tape reads, writes and moves round-trip                                                                                    | Deterministic execution across every tape; official three-tape `a^n b^n c^n` fixture passes                                                                     |
+| Building-block Turing machines             | Embedded and nested block definitions                         | Block nodes, edges, definitions and shortcut fields round-trip                                                                     | Deterministic nested execution with `~`, negated reads and variable assignment; official `asfirst.jff` examples pass                                            |
+| Regular expressions                        | JFLAP `re` documents and syntax                               | Expression text and XML characters round-trip                                                                                      | Thompson RE-to-NFA, NFA-to-DFA, DFA minimization and GNFA FA-to-RE; conversions are exposed in the automata editor                                              |
+| Grammars                                   | Ordered JFLAP productions, including epsilon                  | Productions round-trip                                                                                                             | Grammar classification, bounded Earley recognition and CYK recognition for CNF exercises                                                                        |
+| Mealy and Moore machines                   | Legacy and nested JFLAP layouts                               | States, output values and transitions round-trip                                                                                   | Deterministic output execution; Moore machines emit the initial-state output as JFLAP does                                                                      |
+| L-systems                                  | Axiom, parallel rules, stochastic alternatives and parameters | Supported fields round-trip                                                                                                        | Space-delimited parallel derivation with a reproducible alternative chooser                                                                                     |
+| Regular and context-free pumping exercises | JFLAP activity fields and saved cases                         | Supported activity data round-trips                                                                                                | Decomposition validation and pumping helpers for both lemma families                                                                                            |
 
 ## First release contract
 
-The first dependable milestone covers finite automata (including nondeterminism and epsilon), pushdown automata, and single-tape Turing machines. Broader document families are separate milestones.
+The graphical editor covers finite automata, pushdown automata, single-tape Turing machines, and multi-tape Turing machines. Additional document families are available through the core/JFF APIs; regular-expression and finite-automata conversions are also exposed in the editor. Dedicated visual editors for grammar, transducer, L-system, pumping-lemma, and building-block documents remain future interface work.
 
 - FA transitions consume literal strings, including the empty string (epsilon). Prefix-overlapping transitions are nondeterministic and must explore all applicable paths.
 - PDA read, pop and push fields are literal strings. The initial stack is `Z`. The leftmost symbol of a pop/push string is the top of that string. Acceptance requires consumed input and a final state; an empty stack alone is insufficient.

From 074bc655b95baea69dd85346b3697923e26b8c86 Mon Sep 17 00:00:00 2001
From: AugustoOM <augustojedamathe@gmail.com>
Date: Sun, 6 Sep 2026 21:47:45 -0300
Subject: [PATCH 43/43] fix(lifecycle): prompt when leaving the editor

---
 apps/desktop/src/renderer/src/App.vue         | 13 +++-
 .../src/renderer/src/DesktopAppHeader.vue     | 16 +++-
 apps/web/src/App.vue                          | 19 ++++-
 apps/web/src/AppHeader.vue                    | 14 +++-
 .../ui/__tests__/application-commands.test.ts | 30 +++++++-
 packages/ui/src/applicationCommands.ts        | 74 ++++++++++++++-----
 6 files changed, 130 insertions(+), 36 deletions(-)

diff --git a/apps/desktop/src/renderer/src/App.vue b/apps/desktop/src/renderer/src/App.vue
index 46699ff..e950dae 100644
--- a/apps/desktop/src/renderer/src/App.vue
+++ b/apps/desktop/src/renderer/src/App.vue
@@ -22,7 +22,9 @@ let unlistenMenu: (() => void) | null = null;
 let unlistenClose: (() => void) | null = null;
 let closeApproved = false;
 docStore.restoreRecoveryDraft();
-const beforeUnload = createBeforeUnloadHandler(() => docStore.isDirty);
+const beforeUnload = createBeforeUnloadHandler(
+  () => docStore.currentView === 'editor' && docStore.isDirty,
+);
 window.addEventListener('beforeunload', beforeUnload);
 onBeforeUnmount(() => {
   window.removeEventListener('beforeunload', beforeUnload);
@@ -54,7 +56,7 @@ onMounted(async () => {
 
   const nativeWindow = getCurrentWindow();
   unlistenClose = await nativeWindow.onCloseRequested(async (event) => {
-    if (closeApproved || !docStore.isDirty) return;
+    if (closeApproved || docStore.currentView !== 'editor' || !docStore.isDirty) return;
     event.preventDefault();
     await runProtectedDocumentAction({
       isDirty: true,
@@ -84,7 +86,12 @@ function updateTitle() {
 <template>
   <div class="app">
     <template v-if="docStore.currentView === 'home'">
-      <HomePage :can-resume="docStore.canResume" @new="handleNew" @open="handleOpen" @resume="docStore.resume" />
+      <HomePage
+        :can-resume="docStore.canResume"
+        @new="handleNew"
+        @open="handleOpen"
+        @resume="docStore.resume"
+      />
     </template>
     <template v-else>
       <DesktopAppHeader />
diff --git a/apps/desktop/src/renderer/src/DesktopAppHeader.vue b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
index f74b663..82e195a 100644
--- a/apps/desktop/src/renderer/src/DesktopAppHeader.vue
+++ b/apps/desktop/src/renderer/src/DesktopAppHeader.vue
@@ -31,7 +31,7 @@ function closeMenu() {
 
 async function goBack() {
   closeMenu();
-  commands.goHome();
+  await commands.goHome();
 }
 
 async function newDocument(kind: AutomatonKind) {
@@ -205,7 +205,9 @@ function onRenameKey(e: KeyboardEvent) {
   background: transparent;
   color: var(--color-text-secondary);
   cursor: pointer;
-  transition: background 0.1s, color 0.1s;
+  transition:
+    background 0.1s,
+    color 0.1s;
 }
 
 .app-header__back {
@@ -308,7 +310,11 @@ function onRenameKey(e: KeyboardEvent) {
   font-size: 12px;
   font-weight: 600;
   cursor: pointer;
-  transition: background 0.1s, border-color 0.1s, color 0.1s, opacity 0.1s;
+  transition:
+    background 0.1s,
+    border-color 0.1s,
+    color 0.1s,
+    opacity 0.1s;
 }
 
 .app-header__save:hover:not(:disabled) {
@@ -355,7 +361,9 @@ function onRenameKey(e: KeyboardEvent) {
   background: transparent;
   color: var(--color-text-muted);
   cursor: pointer;
-  transition: background 0.1s, color 0.1s;
+  transition:
+    background 0.1s,
+    color 0.1s;
 }
 
 .app-header__rename-btn:hover {
diff --git a/apps/web/src/App.vue b/apps/web/src/App.vue
index 8fa0c3f..0221f9a 100644
--- a/apps/web/src/App.vue
+++ b/apps/web/src/App.vue
@@ -1,6 +1,12 @@
 <script setup lang="ts">
 import { onBeforeUnmount } from 'vue';
-import { HomePage, EditorView, createBeforeUnloadHandler, useApplicationCommands, useDocumentStore } from '@jauto/ui';
+import {
+  HomePage,
+  EditorView,
+  createBeforeUnloadHandler,
+  useApplicationCommands,
+  useDocumentStore,
+} from '@jauto/ui';
 import type { AutomatonKind } from '@jauto/core';
 import { WebFileService } from '@jauto/file-io';
 import AppHeader from './AppHeader.vue';
@@ -10,7 +16,9 @@ const docStore = useDocumentStore();
 const fileService = new WebFileService();
 const commands = useApplicationCommands(fileService);
 docStore.restoreRecoveryDraft();
-const beforeUnload = createBeforeUnloadHandler(() => docStore.isDirty);
+const beforeUnload = createBeforeUnloadHandler(
+  () => docStore.currentView === 'editor' && docStore.isDirty,
+);
 window.addEventListener('beforeunload', beforeUnload);
 onBeforeUnmount(() => window.removeEventListener('beforeunload', beforeUnload));
 
@@ -28,7 +36,12 @@ async function handleOpen() {
 <template>
   <div class="app">
     <template v-if="docStore.currentView === 'home'">
-      <HomePage :can-resume="docStore.canResume" @new="handleNew" @open="handleOpen" @resume="docStore.resume" />
+      <HomePage
+        :can-resume="docStore.canResume"
+        @new="handleNew"
+        @open="handleOpen"
+        @resume="docStore.resume"
+      />
     </template>
     <template v-else>
       <AppHeader />
diff --git a/apps/web/src/AppHeader.vue b/apps/web/src/AppHeader.vue
index 9ac125a..b1e393f 100644
--- a/apps/web/src/AppHeader.vue
+++ b/apps/web/src/AppHeader.vue
@@ -25,7 +25,7 @@ function closeMenu() {
 
 async function goHome() {
   closeMenu();
-  commands.goHome();
+  await commands.goHome();
 }
 
 async function newDocument(kind: AutomatonKind) {
@@ -109,9 +109,13 @@ function onRenameKey(e: KeyboardEvent) {
       <div class="app-header__menu-group">
         <button class="app-header__nav-btn" @click="toggleMenu('file')">File</button>
         <div v-if="openMenu === 'file'" class="app-header__dropdown">
-          <button class="app-header__dropdown-item" @click="newDocument('fa')">New DFA / NFA</button>
+          <button class="app-header__dropdown-item" @click="newDocument('fa')">
+            New DFA / NFA
+          </button>
           <button class="app-header__dropdown-item" @click="newDocument('pda')">New PDA</button>
-          <button class="app-header__dropdown-item" @click="newDocument('turing')">New Turing Machine</button>
+          <button class="app-header__dropdown-item" @click="newDocument('turing')">
+            New Turing Machine
+          </button>
           <div class="app-header__dropdown-sep" />
           <button class="app-header__dropdown-item" @click="openFile">Open .jff...</button>
           <button class="app-header__dropdown-item" @click="saveFile">Save as .jff</button>
@@ -323,7 +327,9 @@ function onRenameKey(e: KeyboardEvent) {
   background: transparent;
   color: var(--color-text-muted);
   cursor: pointer;
-  transition: background 0.1s, color 0.1s;
+  transition:
+    background 0.1s,
+    color 0.1s;
 }
 
 .app-header__rename-btn:hover {
diff --git a/packages/ui/__tests__/application-commands.test.ts b/packages/ui/__tests__/application-commands.test.ts
index f4105da..2e81a3c 100644
--- a/packages/ui/__tests__/application-commands.test.ts
+++ b/packages/ui/__tests__/application-commands.test.ts
@@ -7,8 +7,10 @@ import { useDocumentStore } from '../src/stores/document';
 function service(): FileService {
   return {
     openFile: vi.fn().mockResolvedValue({
-      name: 'opened.jff', path: 'C:/opened.jff',
-      content: '<?xml version="1.0"?><structure><type>fa</type><automaton><state id="0" name="q0"><x>0</x><y>0</y><initial/></state></automaton></structure>',
+      name: 'opened.jff',
+      path: 'C:/opened.jff',
+      content:
+        '<?xml version="1.0"?><structure><type>fa</type><automaton><state id="0" name="q0"><x>0</x><y>0</y><initial/></state></automaton></structure>',
     }),
     saveFile: vi.fn().mockResolvedValue({ name: 'saved.jff', path: 'C:/saved.jff' }),
     exportImage: vi.fn().mockResolvedValue(true),
@@ -19,6 +21,7 @@ describe('shared application commands', () => {
   beforeEach(() => {
     localStorage.clear();
     setActivePinia(createPinia());
+    vi.restoreAllMocks();
   });
 
   it('uses the same open, save, and native-menu command behavior', async () => {
@@ -29,7 +32,11 @@ describe('shared application commands', () => {
     expect(document.filePath).toBe('C:/opened.jff');
     document.setAutomaton({ ...document.automaton, meta: { comment: 'changed' } });
     await commands.handleMenuCommand('menu:save');
-    expect(fileService.saveFile).toHaveBeenCalledWith('opened.jff', expect.any(String), 'C:/opened.jff');
+    expect(fileService.saveFile).toHaveBeenCalledWith(
+      'opened.jff',
+      expect.any(String),
+      'C:/opened.jff',
+    );
     expect(document.fileName).toBe('saved.jff');
     expect(document.isDirty).toBe(false);
   });
@@ -40,4 +47,21 @@ describe('shared application commands', () => {
     expect(useDocumentStore().automaton.kind).toBe('pda');
     expect(await commands.handleMenuCommand('menu:unknown')).toBe(false);
   });
+
+  it('does not ask to save on first creation but protects leaving the editor', async () => {
+    const confirm = vi.spyOn(window, 'confirm').mockReturnValue(false);
+    const commands = useApplicationCommands(service(), vi.fn());
+    const document = useDocumentStore();
+
+    document.setAutomaton({ ...document.automaton, meta: { comment: 'stale placeholder' } });
+    expect(document.currentView).toBe('home');
+    expect(await commands.newDocument('fa')).toBe(true);
+    expect(confirm).not.toHaveBeenCalled();
+
+    document.setAutomaton({ ...document.automaton, meta: { comment: 'edited document' } });
+    confirm.mockReturnValueOnce(true);
+    expect(await commands.goHome()).toBe(true);
+    expect(confirm).toHaveBeenCalledWith('Save changes before continuing?');
+    expect(document.currentView).toBe('home');
+  });
 });
diff --git a/packages/ui/src/applicationCommands.ts b/packages/ui/src/applicationCommands.ts
index be7e994..53e108a 100644
--- a/packages/ui/src/applicationCommands.ts
+++ b/packages/ui/src/applicationCommands.ts
@@ -8,9 +8,16 @@ import { useHistoryStore } from './stores/history';
 import { useSimulationStore } from './stores/simulation';
 
 export type ApplicationMenuCommand =
-  | 'menu:home' | 'menu:new-fa' | 'menu:new-pda' | 'menu:new-tm'
-  | 'menu:open' | 'menu:save' | 'menu:save-as' | 'menu:export-png'
-  | 'menu:undo' | 'menu:redo';
+  | 'menu:home'
+  | 'menu:new-fa'
+  | 'menu:new-pda'
+  | 'menu:new-tm'
+  | 'menu:open'
+  | 'menu:save'
+  | 'menu:save-as'
+  | 'menu:export-png'
+  | 'menu:undo'
+  | 'menu:redo';
 
 export function useApplicationCommands(
   fileService: FileService,
@@ -32,7 +39,7 @@ export function useApplicationCommands(
         fileService,
         document.automaton,
         document.fileName ?? 'untitled.jff',
-        saveAs ? undefined : document.filePath ?? undefined,
+        saveAs ? undefined : (document.filePath ?? undefined),
       );
       if (result) document.markSaved(token, result.name, result.path);
       return result !== null;
@@ -44,7 +51,15 @@ export function useApplicationCommands(
 
   async function replaceDocument(action: () => void | Promise<void>): Promise<boolean> {
     document.flushInspectorEdits();
-    return runProtectedDocumentAction({ isDirty: document.isDirty, save: () => saveDocument(false), action });
+    if (document.currentView !== 'editor') {
+      await action();
+      return true;
+    }
+    return runProtectedDocumentAction({
+      isDirty: document.isDirty,
+      save: () => saveDocument(false),
+      action,
+    });
   }
 
   async function newDocument(kind: AutomatonKind): Promise<boolean> {
@@ -69,9 +84,17 @@ export function useApplicationCommands(
     });
   }
 
-  function goHome() {
-    simulation.stop();
-    document.goHome();
+  async function goHome(): Promise<boolean> {
+    document.flushInspectorEdits();
+    if (document.currentView !== 'editor') return true;
+    return runProtectedDocumentAction({
+      isDirty: document.isDirty,
+      save: () => saveDocument(false),
+      action: () => {
+        simulation.stop();
+        document.goHome();
+      },
+    });
   }
 
   async function exportPng(): Promise<boolean> {
@@ -90,17 +113,30 @@ export function useApplicationCommands(
 
   async function handleMenuCommand(command: string): Promise<boolean> {
     switch (command as ApplicationMenuCommand) {
-      case 'menu:home': goHome(); return true;
-      case 'menu:new-fa': return newDocument('fa');
-      case 'menu:new-pda': return newDocument('pda');
-      case 'menu:new-tm': return newDocument('turing');
-      case 'menu:open': return openDocument();
-      case 'menu:save': return saveDocument(false);
-      case 'menu:save-as': return saveDocument(true);
-      case 'menu:export-png': return exportPng();
-      case 'menu:undo': history.undo(); return true;
-      case 'menu:redo': history.redo(); return true;
-      default: return false;
+      case 'menu:home':
+        return goHome();
+      case 'menu:new-fa':
+        return newDocument('fa');
+      case 'menu:new-pda':
+        return newDocument('pda');
+      case 'menu:new-tm':
+        return newDocument('turing');
+      case 'menu:open':
+        return openDocument();
+      case 'menu:save':
+        return saveDocument(false);
+      case 'menu:save-as':
+        return saveDocument(true);
+      case 'menu:export-png':
+        return exportPng();
+      case 'menu:undo':
+        history.undo();
+        return true;
+      case 'menu:redo':
+        history.redo();
+        return true;
+      default:
+        return false;
     }
   }