添加 GitHub Actions 自动构建和发布工作流

- 支持跨平台自动构建（Windows、macOS、Linux）
- 在创建 tag 时自动触发构建和发布
- 自动上传构建产物到 GitHub Releases
- 添加跨平台构建脚本命令

.github/workflows/release.yml

@@ -0,0 +1,47 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  release:
+    runs-on: ${{ matrix.os }}
+    
+    strategy:
+      matrix:
+        os: [windows-latest, ubuntu-latest, macos-latest]
+    
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+      
+      - name: Install dependencies
+        run: npm ci
+      
+      - name: Build application
+        run: |
+          npm run build
+          npm run dist
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      
+      - name: Upload Release Assets
+        uses: softprops/action-gh-release@v1
+        if: startsWith(github.ref, 'refs/tags/')
+        with:
+          files: |
+            release/*.exe
+            release/*.dmg
+            release/*.AppImage
+            release/*.deb
+            release/*.rpm
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}