ci: add github action for automated release and vsix packaging

Author: hqyyqh

.github/workflows/release.yml

@@ -0,0 +1,34 @@
+name: Release Extension
+
+on:
+  push:
+    tags:
+      - "v*" # 触发条件：当推送以 v 开头的 tag 时 (例如 v3.0.1)
+
+jobs:
+  build-and-release:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write # 必须赋予写权限，以便创建 release 和上传附件
+
+    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: Package Extension
+        run: npm run package
+
+      - name: Upload Release Asset
+        uses: softprops/action-gh-release@v2
+        with:
+          files: "*.vsix"
+          generate_release_notes: true