前后端构建逻辑优化：新增Node.js支持，完善Dockerfile，更新构建与验证流程

.github/workflows/release.yml

@@ -20,6 +20,13 @@ jobs:
         with:
           go-version: '1.25.5'
 
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: webapp/package-lock.json
+
       - name: Build and Package
         run: |
           chmod +x scripts/build.sh