feat: add C# and Rust Windows Computer Use feasibility spike

biome.jsonc

@@ -61,7 +61,11 @@
       // executor preparation scripts, so reformatting breaks provenance
       // verification; bundled-tools.json is their generated sibling.
       "!apps/desktop/resources/licenses/**",
-      "!apps/desktop/bundled-tools.json"
+      "!apps/desktop/bundled-tools.json",
+      // Computer Use harness outputs are raw evidence, not authored source.
+      // Keep their exact captured formatting and avoid Biome's 1 MiB input
+      // ceiling for repeated Chromium runs.
+      "!experiments/maka-cu-windows/**/*-results*.json"
     ]
   },
   "javascript": {

experiments/maka-cu-windows-rust/.gitignore

@@ -0,0 +1 @@
+/target/

experiments/maka-cu-windows-rust/Cargo.toml

@@ -0,0 +1,58 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+[package]
+name = "maka-cu-windows-rust"
+version = "0.1.0"
+edition = "2021"
+license = "Apache-2.0"
+publish = false
+description = "Minimal direct-COM Windows Computer Use comparison executor"
+
+[dependencies]
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+base64 = "0.22"
+flate2 = "1"
+
+[target.'cfg(windows)'.dependencies]
+windows = { version = "0.62.2", features = [
+  "Win32_Foundation",
+  "Win32_Graphics_Direct3D",
+  "Win32_Graphics_Direct3D11",
+  "Win32_Graphics_Dxgi",
+  "Win32_Graphics_Dxgi_Common",
+  "Win32_Graphics_Gdi",
+  "Win32_System_Com",
+  "Win32_System_Ole",
+  "Win32_System_Threading",
+  "Win32_System_WinRT",
+  "Win32_System_WinRT_Direct3D11",
+  "Win32_System_WinRT_Graphics_Capture",
+  "Graphics_Capture",
+  "Graphics_DirectX_Direct3D11",
+  "Win32_UI_Accessibility",
+  "Win32_UI_Input",
+  "Win32_UI_Input_KeyboardAndMouse",
+  "Win32_UI_WindowsAndMessaging",
+] }
+
+[profile.release]
+strip = "symbols"
+opt-level = "z"
+lto = true
+codegen-units = 1