ci: add deploy-front workflow (static) + example docker-push workflow

.gitea/workflows/deploy-front.yml

@@ -0,0 +1,41 @@
+name: deploy-userbase-front
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - 'front/**'
+      - '.gitea/workflows/deploy-front.yml'
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+    # node:20 自带 npm；通过已配置的 registry-mirrors 拉取
+    container:
+      image: node:20
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Use npm mirror (npmmirror)
+        working-directory: front
+        run: npm config set registry https://registry.npmmirror.com
+
+      - name: Install dependencies
+        working-directory: front
+        run: npm ci
+
+      - name: Build (prod -> dist/prod)
+        working-directory: front
+        run: npm run build:prod
+
+      - name: Deploy to static dir (/data/www/userbase/front)
+        # /data/www/userbase 由 act_runner 全局挂载进每个 job 容器
+        run: |
+          rm -rf /data/www/userbase/front
+          mkdir -p /data/www/userbase/front
+          cp -r front/dist/prod/. /data/www/userbase/front/
+          echo "deployed front -> /data/www/userbase/front"
+
+      - name: Done
+        run: ls -la /data/www/userbase/front | head

.gitea/workflows/example-docker.yml

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+name: example-docker-push
+
+# 示例：演示 act_runner 的 docker.sock 能力（构建并推送镜像到 Nexus docker-hosted）
+# 需要仓库 Settings -> Actions Secrets 配置：
+#   NEXUS_USER   = admin
+#   NEXUS_PASSWORD = <nexus admin password>
+# 手动触发（Actions 页面 -> Run workflow），不会自动跑。
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'image tag to push'
+        required: false
+        default: 'demo'
+
+jobs:
+  docker-build-push:
+    runs-on: ubuntu-latest
+    # docker:24 自带 docker CLI，复用宿主 docker daemon（act_runner 已挂载 docker.sock）
+    container:
+      image: docker:24
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Login to Nexus docker registry
+        run: echo "${{ secrets.NEXUS_PASSWORD }}" | docker login nexus:8083 -u ${{ secrets.NEXUS_USER }}
+
+      - name: Build image (front nginx)
+        run: docker build -t nexus:8083/docker-hosted/userbase-front:${{ inputs.tag }} -f front/docker/Dockerfile front
+
+      - name: Push image
+        run: docker push nexus:8083/docker-hosted/userbase-front:${{ inputs.tag }}