- 后端: ListNamespacesDetailed/CreateNamespace/DeleteNamespace/ListResourceQuotas/ListLimitRanges - 后端: GetNamespacesDetail handler (6 API calls aggregate, not N×3) - 后端: CreateNamespaceHandler + DeleteNamespaceHandler (system NS protection) - 前端: NamespaceManagementPage.tsx (~280行) — 表格+概览卡片+创建/删除弹框 - 路由: GET/POST/DELETE /:clusterCode/namespaces + GET /namespace/:ns/detail - 验证: 9/9 通过 (urllib), TS 零错误, Vite 构建成功