feat(ci): Runner分层调度 - L1/L2/L3按任务类型路由

PR #401: Runner分层调度

- L1层(轻量): Validate/Frontend Lint，快速反馈
- L2层(标准): Unit Tests/Integration Tests
- L3层(重): Build/Deploy/E2E，独占资源
- 按任务类型路由到对应标签的runner池

.gitea/workflows/ci-build.yml

@@ -35,7 +35,7 @@ concurrency:
 jobs:
   build-staging:
     name: Build Staging ${{ matrix.service_display }} Image
-    runs-on: host
+    runs-on: ci-l2
     timeout-minutes: ${{ matrix.timeout }}
     if: github.event_name == 'push' && (github.ref_name == 'main' || github.ref_name == 'develop')
     strategy:
@@ -157,7 +157,7 @@ jobs:
         '
   deploy-staging:
     name: Deploy Staging (Watchtower auto-deploy)
-    runs-on: saas
+    runs-on: ci-l3
     timeout-minutes: 15
     concurrency:
       group: deploy-staging-${{ gitea.ref }}
@@ -311,7 +311,7 @@ jobs:
         '
   staging-e2e:
     name: Staging E2E Tests
-    runs-on: saas
+    runs-on: ci-l3
     timeout-minutes: 15
     if: github.ref_name == 'develop' || github.ref_name == 'main'
     needs: deploy-staging
@@ -391,7 +391,7 @@ jobs:
         '
   staging-api-tests:
     name: Staging API Integration Tests
-    runs-on: saas
+    runs-on: ci-l2
     timeout-minutes: 10
     if: github.ref_name == 'develop' || github.ref_name == 'main'
     needs: deploy-staging
@@ -471,7 +471,7 @@ jobs:
         '
   build-production:
     name: Build Production ${{ matrix.service_display }} Image
-    runs-on: host
+    runs-on: ci-l2
     timeout-minutes: ${{ matrix.timeout }}
     needs:
     if: startsWith(github.ref, 'refs/tags/v')
@@ -595,7 +595,7 @@ jobs:
         '
   deploy-production:
     name: Deploy Production
-    runs-on: saas
+    runs-on: ci-l3
     timeout-minutes: 30
     concurrency:
       group: deploy-production-${{ gitea.ref }}
@@ -741,7 +741,7 @@ jobs:
         '
   production-e2e:
     name: Production Browser E2E
-    runs-on: saas
+    runs-on: ci-l3
     timeout-minutes: 15
     if: startsWith(github.ref, 'refs/tags/v')
     needs: deploy-production

.gitea/workflows/ci-cd.yml

@@ -35,7 +35,7 @@ concurrency:
 jobs:
   validate:
     name: Validate Code Quality And Tests
-    runs-on: host
+    runs-on: ci-l1
     timeout-minutes: 10
     env:
       DATABASE_URL: postgresql+psycopg://postgres:postgres@127.0.0.1:5432/xiaoxia_saas
@@ -191,7 +191,7 @@ jobs:
         '
   unit-tests:
     name: Unit Tests
-    runs-on: host
+    runs-on: ci-l2
     timeout-minutes: 8
     env:
       USE_IN_MEMORY_DB: 'true'
@@ -262,7 +262,7 @@ jobs:
         '
   integration-tests:
     name: Integration Tests
-    runs-on: host
+    runs-on: ci-l2
     timeout-minutes: 30
     if: always()
     needs: validate
@@ -379,7 +379,7 @@ jobs:
         '
   frontend-lint:
     name: Frontend Lint
-    runs-on: host
+    runs-on: ci-l1
     timeout-minutes: 10
     steps:
     - name: Checkout code