ci: 新增 release-linux 任务（AppImage + deb，供 v0.2.8 补发 Linux 包）

Author: 29486

.github/workflows/ci.yml

@@ -107,6 +107,36 @@ jobs:
             release/*.exe
           if-no-files-found: error
 
+  release-linux:
+    name: Package Linux (AppImage + deb)
+    runs-on: ubuntu-24.04
+    timeout-minutes: 40
+    if: github.event_name == 'workflow_dispatch' || startsWith(github.ref, 'refs/tags/v')
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+      - name: Install dependencies
+        run: npm ci
+      - name: Rebuild native modules for Electron ABI
+        run: npx electron-builder install-app-deps
+      - name: Build (electron-vite)
+        run: npm run build
+      - name: Package Linux
+        run: npm run dist:linux -- --publish never
+        env:
+          CSC_IDENTITY_AUTO_DISCOVERY: 'false'
+      - name: Upload Linux artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: ourcode-ide-linux-x64
+          path: |
+            release/*.AppImage
+            release/*.deb
+          if-no-files-found: error
+
   release-macos-arm64:
     name: Package macOS (Apple Silicon)
     runs-on: macos-latest