feat(admin): 补全平台任务观测 + 空间管理 + 基建加 MinIO/实时探针

对照已实现系统功能补 admin 缺失模块(feat/site):

- 全平台任务/运行观测:GET /admin/tasks(跨租户查 sundynix_task,join 租户名/提交人邮箱/评测,
  按状态/租户筛 + 状态计数;含 HITL 待审批=筛 waiting)+ TasksPage(状态卡+筛+表)。
- 空间(Space)管理:GET /admin/spaces(跨租户列 Space + 成员数子查询 + kind/归档态)+ SpacesPage。
- 基建观测:infra 加 MinIO(126 对象存储);postgres/redis/minio 从启动标志升级为实时 ping
  (blob.Ping/Postgres.Ping/Redis.Ping),能反映中途掉线。StatusPage 加 minio 标签、6 个依赖。
- 模型健康/熔断:确认 DashboardPage 已有「运行时链路态」渲染 m.health,无需重做。

验证:admin tsc + vitest 41 过、gateway build/vet/test 过;两新页浏览器实测渲染+优雅错误处理;
两新端点起临时 gateway 打真 PG 实测——tasks(counts+3路join)、spaces(成员数子查询)均返真数据。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

sundynix-admin/src/routes.tsx

@@ -9,11 +9,13 @@ const UsagePage = lazy(() => import("./pages/UsagePage").then((m) => ({ default:
 const ModelsPage = lazy(() => import("./pages/ModelsPage").then((m) => ({ default: m.ModelsPage })));
 const DatasourcesPage = lazy(() => import("./pages/DatasourcesPage").then((m) => ({ default: m.DatasourcesPage })));
 const StatusPage = lazy(() => import("./pages/StatusPage").then((m) => ({ default: m.StatusPage })));
+const TasksPage = lazy(() => import("./pages/TasksPage").then((m) => ({ default: m.TasksPage })));
 const EvalsPage = lazy(() => import("./pages/EvalsPage").then((m) => ({ default: m.EvalsPage })));
 const TenantsPage = lazy(() => import("./pages/TenantsPage").then((m) => ({ default: m.TenantsPage })));
 const GuardrailsPage = lazy(() => import("./pages/GuardrailsPage").then((m) => ({ default: m.GuardrailsPage })));
 const PromptsPage = lazy(() => import("./pages/PromptsPage").then((m) => ({ default: m.PromptsPage })));
 const AuditPage = lazy(() => import("./pages/AuditPage").then((m) => ({ default: m.AuditPage })));
+const SpacesPage = lazy(() => import("./pages/SpacesPage").then((m) => ({ default: m.SpacesPage })));
 
 export interface RouteDef {
   path: string;
@@ -66,6 +68,13 @@ export const routes: RouteDef[] = [
     ready: true,
     element: <StatusPage />,
   },
+  {
+    path: "/tasks",
+    label: "任务观测",
+    group: "运维",
+    ready: true,
+    element: <TasksPage />,
+  },
   {
     path: "/evals",
     label: "自动评测",
@@ -87,6 +96,13 @@ export const routes: RouteDef[] = [
     ready: true,
     element: <TenantsPage />,
   },
+  {
+    path: "/spaces",
+    label: "空间",
+    group: "平台",
+    ready: true,
+    element: <SpacesPage />,
+  },
   {
     path: "/guardrails",
     label: "安全护栏",