diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0a0a7d3..393fe91 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -24,8 +24,10 @@ jobs:
           set -euo pipefail
           v="${GITHUB_REF_NAME}"
           d="kvlang-abi-$v-linux-x86_64"
-          mkdir -p "$d/include" "$d/lib/kvspace"
-          cp runtime/include/*.h "$d/include/"
+          mkdir -p "$d/include/kvlang" "$d/lib/kvspace"
+          cp runtime/include/*.h "$d/include/kvlang/"
+          # 自带全部 ABI 依赖的头 → 解包即 /usr/include 布局（扩展编译需要 kvspace.h 等）
+          cp -r /usr/include/kvspace /usr/include/blockmalloc /usr/include/slotsboxmalloc "$d/include/"
           cp bin/libkvlang_runtime.so "$d/lib/"
           cp layout/target/release/libkvlanglayout.so "$d/lib/"
           # 自带全部 ABI 依赖 → 解包即 /usr/lib + /usr/lib/kvspace 布局
@@ -65,13 +67,31 @@ jobs:
           cmake -S runtime -B build/runtime -DCMAKE_BUILD_TYPE=Release -DKVSPACE_LIB_DIR="$KVSPACE_LIB_DIR"
           cmake --build build/runtime --target kvlang_runtime -j
           cargo build --release --manifest-path layout/Cargo.toml
+      - name: 后端装载冒烟（frontend 的 dlopen 真能加载后端）
+        run: |
+          cat > /tmp/conn.c <<'EOF'
+          #include <kvspace/kvspace.h>
+          #include <stdio.h>
+          int main(void) {
+              void *shm = kvspaceConnect("shm:///tmp/ks_rel_macos");
+              void *fs  = kvspaceConnect("fs:///tmp/ks_rel_fs");
+              printf("shm=%p fs=%p\n", shm, fs);
+              if (shm) kvspaceClose(shm);
+              if (fs)  kvspaceClose(fs);
+              return (shm && fs) ? 0 : 1;
+          }
+          EOF
+          cc /tmp/conn.c -o /tmp/conn -I/usr/local/include -L/usr/local/lib/kvspace -lkvspace
+          DYLD_FALLBACK_LIBRARY_PATH=/usr/local/lib /tmp/conn
       - name: 打包 ABI 产物
         run: |
           set -euo pipefail
           v="${GITHUB_REF_NAME}"
           d="kvlang-abi-$v-darwin-arm64"
-          mkdir -p "$d/include" "$d/lib/kvspace"
-          cp runtime/include/*.h "$d/include/"
+          mkdir -p "$d/include/kvlang" "$d/lib/kvspace"
+          cp runtime/include/*.h "$d/include/kvlang/"
+          # 自带全部 ABI 依赖的头 → 解包即 /usr/local/include 布局
+          cp -r /usr/local/include/kvspace /usr/local/include/blockmalloc /usr/local/include/slotsboxmalloc "$d/include/"
           cp bin/libkvlang_runtime.dylib "$d/lib/"
           cp layout/target/release/libkvlanglayout.dylib "$d/lib/"
           # 自带全部 ABI 依赖 → 解包即 /usr/local/lib + /usr/local/lib/kvspace 布局