feat: 优化 CI 工作流，简化步骤并更新环境配置

.gitea/workflows/ci.yml

@@ -1,59 +1,42 @@
-# PR 自动检查：代码风格 + 类型检查 + 测试
-name: CI 检查
+name: CI
+
+env:
+  NPM_CONFIG_REGISTRY: https://registry.npmmirror.com
+  NPM_CONFIG_AUDIT: "false"
+  NPM_CONFIG_FUND: "false"
+  NPM_CONFIG_PREFER_OFFLINE: "true"
+  NPM_CONFIG_REPLACE_REGISTRY_HOST: always
+  CI: "true"
+  TURBO_UI: stream
 
 on:
   pull_request:
     branches: [main]
-  push:
-    branches: [main]
-
-# 同一分支有新提交时取消旧任务，避免旧任务持续占用 Gitea runner。
-concurrency:
-  group: ci-${{ gitea.ref }}
-  cancel-in-progress: true
+  workflow_dispatch:
 
 jobs:
-  verify:
+  check:
     runs-on: ubuntu-latest
+    container: node:20.20.2-bookworm
     timeout-minutes: 30
-    env:
-      CI: 'true'
-      TURBO_UI: stream
+
     steps:
-      - name: 检出代码
-        uses: actions/checkout@v4
-        timeout-minutes: 3
+      - name: Checkout
+        uses: https://gitee.com/mirrors_actions/checkout@v4
 
-      - name: 安装 Node.js
-        uses: actions/setup-node@v4
-        timeout-minutes: 3
-        with:
-          node-version: '22'
-          cache: npm
+      - name: Install dependencies
+        run: npm ci
 
-      - name: 安装依赖
-        run: npm ci --no-audit --no-fund
-        timeout-minutes: 10
-
-      - name: 代码检查
-        # 后端原 lint 脚本带 --fix；CI 中追加 --no-fix，避免检查时修改工作区。
+      - name: Lint
         run: |
           npm run lint -w @gongxue/admin
           npm run lint -w @gongxue/server -- --no-fix
-        timeout-minutes: 5
 
-      - name: 类型检查
+      - name: Type check
         run: npm run typecheck
-        timeout-minutes: 8
 
-      - name: 后端测试
+      - name: Build frontend
+        run: npm run build -w @gongxue/admin
+
+      - name: Run backend tests
         run: npm run test -w @gongxue/server -- --runInBand --forceExit
-        timeout-minutes: 10
-
-      - name: 安装 Chromium
-        run: npx playwright install --with-deps chromium
-        timeout-minutes: 10
-
-      - name: 前端测试
-        run: npm run test -w @gongxue/admin
-        timeout-minutes: 10