refactor(ci): use container-based approach like license project

- Split into build and docker jobs
- Use node:22 container for frontend build
- Add pnpm cache for faster builds
- Support multiple package managers for Docker CLI installation

.gitea/workflows/build.yml

@@ -15,19 +15,17 @@ env:
   IMAGE_NAME: admin/taskpool
 
 jobs:
-  build-and-push:
-    runs-on: ubuntu-latest
-    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
-    steps:
-      - name: Install Node.js
-        run: |
-          apt-get update
-          apt-get install -y curl
-          curl -fsSL https://deb.nodesource.com/setup_22.x | bash -
-          apt-get install -y nodejs
-          node --version
+  build:
+    name: Build Frontend
+    runs-on: ubuntu
+    container:
+      image: node:22
+    defaults:
+      run:
+        working-directory: web
 
-      - name: Checkout
+    steps:
+      - name: Checkout repository
         uses: actions/checkout@v4
 
       - name: Setup pnpm
@@ -35,19 +33,61 @@ jobs:
         with:
           version: 9
 
+      - name: Get pnpm store directory
+        shell: bash
+        run: |
+          echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_OUTPUT
+        id: pnpm-cache
+
+      - name: Setup pnpm cache
+        uses: actions/cache@v4
+        with:
+          path: ${{ steps.pnpm-cache.outputs.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
+
       - name: Install dependencies
-        working-directory: web
         run: pnpm install --frozen-lockfile
 
       - name: Build
-        working-directory: web
         run: pnpm build
 
+  docker:
+    name: Build and Push Docker Image
+    runs-on: ubuntu
+    needs: build
+    if: github.event_name == 'push'
+    env:
+      RUNNER_TOOL_CACHE: /toolcache
+
+    steps:
+      - name: Install Docker CLI
+        run: |
+          if ! command -v docker &> /dev/null; then
+            if command -v apk &> /dev/null; then
+              apk add --no-cache docker-cli
+            elif command -v apt-get &> /dev/null; then
+              apt-get update && apt-get install -y docker.io
+            else
+              curl -fsSL https://download.docker.com/linux/static/stable/x86_64/docker-24.0.7.tgz | tar xz -C /tmp
+              mv /tmp/docker/docker /usr/local/bin/
+              chmod +x /usr/local/bin/docker
+            fi
+          fi
+          docker --version
+
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
       - name: Login to Registry
         run: echo "${{ secrets.TOKEN }}" | docker login ${{ env.REGISTRY }} -u admin --password-stdin
 
-      - name: Build and push Docker image
+      - name: Build Docker image
         run: |
           docker build -f Dockerfile.standalone -t ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest -t ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.sha }} .
+
+      - name: Push Docker image
+        run: |
           docker push ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
           docker push ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.sha }}