feat(pwa): 自动更新Service Worker并添加JS构建流程

- SW使用network-first策略加载HTML页面，确保用户获取最新内容
- SW安装时自动skipWaiting+clients.claim，无需用户手动刷新
- 添加Rollup构建流程，从_javascript源码编译assets/js/dist
- GitHub Actions中集成Node.js构建步骤
- assets/js/dist不再纳入版本控制，由CI自动生成

Signed-off-by: wangsimiao1 <wangsimiao1@xiaomi.com>

Author: WangSimiao2000

.github/workflows/pages-deploy.yml

@@ -42,6 +42,14 @@ jobs:
           ruby-version: 3.3
           bundler-cache: true
 
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+
+      - name: Build JavaScript
+        run: npm ci && npm run build
+
       - name: Generate gallery from R2
         env:
           R2_ACCOUNT_ID: ${{ secrets.R2_ACCOUNT_ID }}

.gitignore

@@ -15,6 +15,9 @@ _site
 node_modules
 package-lock.json
 
+# Build output
+assets/js/dist
+
 # IDE configurations
 .idea
 .kiro