feat: add Go workload deployment artifacts and split Ingress routing

README.md

@@ -314,9 +314,12 @@ ZHINIAN_INTERNAL_WORKER_TOKEN=change-me-worker-token
 - 分镜提示词与 `@素材` 引用编排
 - 火山 Visual 签名 canonical request
 - Next.js 生产构建
+- Go 后端全量测试与构建(`backend/`,契约 fixture 同步)
 
 ```bash
 npm test
 npm run build
 npm run health
+npm run go:test
+npm run go:build
 ```