feat(ci): 添加 runner 自主维护 workflow（每6小时健康检查）

.gitea/workflows/runner-maintenance.yaml

@@ -0,0 +1,67 @@
+name: Runner Self-Maintenance
+
+on:
+  schedule:
+    - cron: "0 */6 * * *"
+  workflow_dispatch:
+
+jobs:
+  health-check:
+    runs-on: docker
+    steps:
+      - name: Check Gitea health
+        id: gitea
+        run: |
+          STATUS=$(curl -sf http://gitea:3000/api/healthz | grep -c '"status":"pass"' || echo 0)
+          if [ "$STATUS" -ge 1 ]; then
+            echo "result=ok|Gitea 健康检查通过" >> $GITHUB_OUTPUT
+          else
+            echo "result=fail|Gitea 健康检查失败" >> $GITHUB_OUTPUT
+            exit 1
+          fi
+
+      - name: Check Verdaccio health
+        id: verdaccio
+        run: |
+          if curl -sf http://verdaccio:4873/-/ping | grep -q '"status":"ok"\|"status": "ok"'; then
+            echo "result=ok|Verdaccio 正常" >> $GITHUB_OUTPUT
+          elif curl -sf http://verdaccio:4873/-/ping >/dev/null 2>&1; then
+            echo "result=ok|Verdaccio 可访问" >> $GITHUB_OUTPUT
+          else
+            echo "result=fail|Verdaccio 不可达" >> $GITHUB_OUTPUT
+            exit 1
+          fi
+
+      - name: Check runner registration
+        id: runner
+        run: |
+          RESP=$(curl -sf -u "${{ secrets.CI_USER }}:${{ secrets.CI_PASSWORD }}" \
+            "http://gitea:3000/api/v1/admin/actions/runners")
+          ONLINE=$(echo "$RESP" | grep -c '"status":"online"' || echo 0)
+          if [ "$ONLINE" -ge 1 ]; then
+            NAME=$(echo "$RESP" | grep -o '"name":"[^"]*"' | head -1 | cut -d'"' -f4)
+            echo "result=ok|Runner ${NAME} 在线 (${ONLINE} 个)" >> $GITHUB_OUTPUT
+          else
+            echo "result=fail|无在线 Runner" >> $GITHUB_OUTPUT
+            exit 1
+          fi
+
+      - name: Cleanup stale action containers
+        id: cleanup
+        run: |
+          REMOVED=0
+          for cid in $(docker ps -a --filter "label=org.opencontainers.image.source=gitea/act_runner" -q 2>/dev/null); do
+            STATE=$(docker inspect -f '{{.State.Status}}' "$cid" 2>/dev/null || echo unknown)
+            if [ "$STATE" = "exited" ]; then
+              docker rm "$cid" >/dev/null 2>&1 && REMOVED=$((REMOVED+1)) || true
+            fi
+          done
+          echo "result=ok|清理 ${REMOVED} 个已退出的 job 容器" >> $GITHUB_OUTPUT
+        continue-on-error: true
+
+      - name: Notify DingTalk on failure
+        if: failure()
+        run: |
+          curl -s -X POST "https://oapi.dingtalk.com/robot/send?access_token=${{ secrets.DINGDING_TOKEN }}" \
+            -H "Content-Type: application/json" \
+            -d '{"msgtype":"markdown","markdown":{"title":"❌ Gitea Runner 自主维护告警 chen-fnos","text":"## ❌ Gitea Runner 自主维护告警 chen-fnos\n\n- Gitea: ${{ steps.gitea.outputs.result }}\n- Verdaccio: ${{ steps.verdaccio.outputs.result }}\n- Runner: ${{ steps.runner.outputs.result }}\n- 清理: ${{ steps.cleanup.outputs.result }}\n\n请检查 gitea-runner 容器状态"}}'