diff --git a/.gitea/workflows/app.yml b/.gitea/workflows/app.yml
index 0d3ee7a..372701f 100644
--- a/.gitea/workflows/app.yml
+++ b/.gitea/workflows/app.yml
@@ -12,7 +12,7 @@ on:
       - 'pnpm-workspace.yaml'
       - '.gitea/workflows/app.yml'
   push:
-    branches: [main]
+    branches: ["**"]
     paths:
       - 'apps/waterfall-wiki/**'
       - 'packages/brand/**'
@@ -26,20 +26,31 @@ concurrency:
   group: unified-app-${{ gitea.event.pull_request.number || gitea.ref }}
   cancel-in-progress: false
 jobs:
-  verify-and-release:
+  static-checks:
     runs-on: ces-control
-    timeout-minutes: 60
+    timeout-minutes: 10
     steps:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - name: Check scripts and content contracts
+      - name: Check patch, syntax and source contracts without building
         run: |
           git diff --check HEAD^ HEAD
           for script in scripts/*.sh; do bash -n "$script"; done
           node scripts/check-studio-contracts.mjs
           node --check scripts/verify-studio-visual.cjs
           node --check apps/waterfall-wiki/scripts/infinite-canvas-smoke.cjs
+          node --check apps/waterfall-wiki/scripts/cleanup-ci-bucket.mjs
+          python3 -c 'import ast,pathlib; ast.parse(pathlib.Path("scripts/wiki-image-lifecycle.py").read_text())'
+  verify-and-release:
+    needs: static-checks
+    if: gitea.event_name == 'push' && gitea.ref == 'refs/heads/main'
+    runs-on: ces-control
+    timeout-minutes: 60
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
       - name: Build and verify the unified application once
         run: |
           docker build --target integration -t "waterfall-wiki-tests:${{ gitea.sha }}" .
diff --git a/.gitea/workflows/python.yml b/.gitea/workflows/python.yml
index 64c0cba..9982229 100644
--- a/.gitea/workflows/python.yml
+++ b/.gitea/workflows/python.yml
@@ -8,7 +8,7 @@ on:
       - 'scripts/deploy-python.sh'
       - '.gitea/workflows/python.yml'
   push:
-    branches: [main]
+    branches: ["**"]
     paths:
       - '.dockerignore'
       - 'apps/python/**'
@@ -16,7 +16,21 @@ on:
       - '.gitea/workflows/python.yml'
 
 jobs:
+  static-checks:
+    runs-on: ces-control
+    timeout-minutes: 5
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Check Python and deployment syntax without executing tests
+        run: |
+          git diff --check HEAD^ HEAD
+          bash -n scripts/deploy-python.sh
+          python3 -c 'import ast,pathlib; [ast.parse(p.read_text(),filename=str(p)) for p in pathlib.Path("apps/python").rglob("*.py")]'
   verify-and-deploy:
+    needs: static-checks
+    if: gitea.ref == 'refs/heads/main' && gitea.event_name == 'push'
     runs-on: ces-control
     timeout-minutes: 45
     steps:
diff --git a/README.md b/README.md
index 721a33e..20720e9 100644
--- a/README.md
+++ b/README.md
@@ -81,7 +81,7 @@ for script in scripts/*.sh; do bash -n "$script"; done
 
 ## 部署与持久化
 
-Web 应用由 `.gitea/workflows/app.yml` 统一验证与发布。Wiki 和 Studio 已合并成一个 Next.js 应用，一次编译、一个 Web 运行镜像，Web 与后台 worker 使用同一镜像。PostgreSQL/S3 基础服务长期运行，不在日常发布中重建。PR 验证候选版本但不部署；只有 main push 才更新生产。完整步骤见 [统一部署流程](docs/unified-deployment.md)。
+Web 应用由 `.gitea/workflows/app.yml` 统一验证与发布。Wiki 和 Studio 已合并成一个 Next.js 应用，一次编译、一个 Web 运行镜像，Web 与后台 worker 使用同一镜像。PostgreSQL/S3 基础服务长期运行，不在日常发布中重建。工作分支 push/PR 仅做轻量静态检查；只有 main push 才构建、运行测试并更新生产。完整步骤见 [统一部署流程](docs/unified-deployment.md)。
 
 | 服务 | 入口/端口 |
 | --- | --- |
diff --git a/docs/docker-build-cache.md b/docs/docker-build-cache.md
index 87b583c..b238571 100644
--- a/docs/docker-build-cache.md
+++ b/docs/docker-build-cache.md
@@ -16,7 +16,7 @@
 
 ## 验证与限制
 
-构建、打包与产物验证只在已确认的 `ces-control` runner 执行。Python PR 运行镜像构建和单测，但只有 main push 才会发布 latest 标签。Web PR 沿用现有远程 Docker 验证流程，不再单独构建品牌检查镜像。
+构建、打包与产物验证只在已确认的 `ces-control` runner 执行。Web 与 Python 的工作分支 push/PR 仅运行轻量静态检查；类型检查、单元测试、编译、镜像构建和部署都只在 main push 执行。不再单独构建品牌检查镜像。
 
 本次没有升级 Docker builder，也没有承诺消除 legacy builder 的镜像层提交耗时；缓存层调整后的实际收益需比较后续 CI 日志。源码变化仍需构建，当前采用持久测试基础设施；本次应用合并仍保留完整集成验证，按影响范围选择测试留作后续优化。
 
diff --git a/docs/unified-deployment.md b/docs/unified-deployment.md
index cc6e306..6eb6841 100644
--- a/docs/unified-deployment.md
+++ b/docs/unified-deployment.md
@@ -18,7 +18,7 @@ Wiki 与 Studio 合并为 `apps/waterfall-wiki` 内一个 Next.js Pages Router 
 8. 检查健康、账户、已有内容和完整线上验收。验收处于部署脚本回滚边界内；失败尝试恢复数据库备份和上一版应用。
 9. 验收通过后更新 current 和成功记录，停止有明确 Compose 所属标签的旧 Studio 容器（保留旧镜像）。上传验收证据；上传成功后删除 runner 临时报告。镜像盘点清理不在发布关键路径执行。
 
-PR 运行同一候选构建与测试，但部署步骤只允许 main push。首次应用合并保留完整远程验证；尚未按改动选择浏览器用例，不能宣称已消除全部重复测试。发布不自动取消进行中的任务，以免中断数据库迁移；过期版本由部署脚本检查跳过。
+工作分支 push 和面向 main 的 PR 只执行 static-checks，不安装依赖、不编译、不构建镜像、不启动测试环境、不运行单测或浏览器检查。只有 main push 通过静态检查后才执行完整构建、测试与部署；Python 使用相同边界。代价是类型、编译和集成错误到合并后才发现，但失败会阻止后续部署。旧配置已经创建的运行不会因本次 YAML 修改自动变成静态检查。发布不自动取消进行中的任务，以免中断数据库迁移；过期版本由部署脚本检查跳过。
 
 ## 基础设施初始化与维护
 
diff --git a/scripts/deploy.sh b/scripts/deploy.sh
index 5a3b900..cd246a7 100644
--- a/scripts/deploy.sh
+++ b/scripts/deploy.sh
@@ -17,7 +17,7 @@ test "$(git -c safe.directory="$PWD" rev-parse HEAD)" = "$RELEASE_SHA"
 LATEST_MAIN=$(git -c safe.directory="$PWD" ls-remote origin refs/heads/main | cut -f1)
 if [ "$LATEST_MAIN" != "$RELEASE_SHA" ]; then
   git -c safe.directory="$PWD" fetch origin main
-  if ! git -c safe.directory="$PWD" diff --quiet "$RELEASE_SHA" origin/main -- apps/waterfall-wiki Dockerfile compose.yml scripts/deploy.sh scripts/wiki-image-lifecycle.py scripts/infra.sh scripts/integration.sh scripts/auth-admin.sh .gitea/workflows/app.yml pnpm-workspace.yaml packages/brand; then
+  if ! git -c safe.directory="$PWD" diff --quiet "$RELEASE_SHA" origin/main -- apps/waterfall-wiki packages/brand Dockerfile .dockerignore compose.yml package.json pnpm-workspace.yaml scripts .gitea/workflows/app.yml; then
     echo 'Skipping deployment: Wiki has a newer commit'; exit 0
   fi
 fi