feat(linux): add native window frame and pacman packaging

On Linux, `titleBarStyle: 'hidden'` removes the title bar entirely,
leaving no window controls (close/minimize/maximize). macOS has traffic
lights and Windows has a custom title bar component, but Linux gets
nothing. Fix this by omitting the hidden title bar style on Linux,
which gives native window decorations from the desktop environment
(GNOME, KDE, Hyprland, etc.).

Also adds Linux build support:
- electron-builder `linux` config targeting pacman (.pkg.tar.zst)
- `dist:linux` script for standalone Linux builds
- `release-linux` CI job on ubuntu-latest
- `dist` script updated to include --linux

.github/workflows/release.yml

@@ -153,3 +153,53 @@ jobs:
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: pnpm dist:win
+
+  release-linux:
+    needs: build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Download dist artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: dist
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: pnpm
+
+      - name: Setup Python for node-gyp
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Install dependencies
+        run: pnpm install --no-frozen-lockfile
+
+      - name: Set version from tag
+        if: startsWith(github.ref, 'refs/tags/v')
+        run: |
+          VERSION="${GITHUB_REF#refs/tags/v}"
+          pnpm pkg set version="$VERSION"
+
+      - name: Build app (Linux)
+        run: pnpm build
+
+      - name: Verify packaged inputs (Linux)
+        run: |
+          test -f dist-electron/main/index.cjs
+          test -f dist-electron/preload/index.js
+          test -f out/renderer/index.html
+
+      - name: Package & Release (Linux)
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: pnpm dist:linux

package.json

@@ -17,9 +17,10 @@
   "scripts": {
     "dev": "electron-vite dev",
     "build": "electron-vite build",
-    "dist": "electron-builder --mac --win",
+    "dist": "electron-builder --mac --win --linux",
     "dist:mac": "electron-builder --mac --publish always",
     "dist:win": "electron-builder --win --publish always",
+    "dist:linux": "electron-builder --linux --publish always",
     "preview": "electron-vite preview",
     "typecheck": "tsc --noEmit",
     "lint": "eslint src/",
@@ -150,6 +151,13 @@
       ],
       "icon": "resources/icons/win/icon.ico"
     },
+    "linux": {
+      "target": [
+        "pacman"
+      ],
+      "icon": "resources/icons/png",
+      "category": "Development"
+    },
     "nsis": {
       "oneClick": false,
       "perMachine": false,

src/main/index.ts

@@ -28,7 +28,10 @@ const getWindowIconPath = (): string | undefined => {
   const isDev = process.env.NODE_ENV === 'development';
   const candidates = isDev
     ? [join(process.cwd(), 'resources/icon.png')]
-    : [join(process.resourcesPath, 'resources/icon.png'), join(__dirname, '../../resources/icon.png')];
+    : [
+        join(process.resourcesPath, 'resources/icon.png'),
+        join(__dirname, '../../resources/icon.png'),
+      ];
 
   for (const candidate of candidates) {
     if (existsSync(candidate)) {
@@ -363,6 +366,7 @@ function syncTrafficLightPosition(win: BrowserWindow): void {
  */
 function createWindow(): void {
   const isMac = process.platform === 'darwin';
+  const isLinux = process.platform === 'linux';
   const iconPath = isMac ? undefined : getWindowIconPath();
   mainWindow = new BrowserWindow({
     width: DEFAULT_WINDOW_WIDTH,
@@ -374,7 +378,7 @@ function createWindow(): void {
       contextIsolation: true,
     },
     backgroundColor: '#1a1a1a',
-    titleBarStyle: 'hidden',
+    ...(isLinux ? {} : { titleBarStyle: 'hidden' as const }),
     ...(isMac && { trafficLightPosition: getTrafficLightPositionForZoom(1) }),
     title: 'claude-devtools',
   });