feat: decouple frontend and backend deployment workflows with Docker

.gitea/workflows/extension-build.yml

@@ -0,0 +1,38 @@
+name: Extension Build & Release
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'extension/**'
+
+jobs:
+  build:
+    runs-on: arm
+    container:
+      image: catthehacker/ubuntu:act-latest
+    steps:
+      - name: 获取代码
+        uses: actions/checkout@v4
+      
+      - name: 安装 Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          
+      - name: 编译浏览器扩展
+        run: |
+          cd extension
+          npm install
+          npm run build
+          
+      - name: 打包为 Zip 文件
+        run: |
+          cd extension/dist
+          zip -r ../../insight-reply-extension.zip .
+          
+      - name: 上传构建产物 (Artifact)
+        uses: actions/upload-artifact@v4
+        with:
+          name: insight-reply-extension
+          path: insight-reply-extension.zip