feat: add relational data center entry

admin-web/src/App.tsx

@@ -5,7 +5,7 @@ import {
   HomeOutlined, ApartmentOutlined, ImportOutlined, CheckCircleOutlined,
   SendOutlined, ToolOutlined, SettingOutlined, LogoutOutlined,
   MenuFoldOutlined, MenuUnfoldOutlined, CompassOutlined,
-  ProjectOutlined,
+  ProjectOutlined, DatabaseOutlined,
 } from "@ant-design/icons";
 import AdminLogin from "./AdminLogin";
 import AdminLoginV2 from "./AdminLoginV2";
@@ -13,6 +13,7 @@ import Brand from "./Brand";
 import { displayProjectName, getProjectContext, whoami, type KgProjectContext } from "./api";
 import ProjectContextBar from "./ProjectContextBar";
 import ProjectLanding from "./ProjectLanding";
+import DataCenterPanel from "./panels/data-platform/DataCenterPanel";
 
 // Plaza panels (STEP 02)
 import PlazaOverview from "./panels/plaza/PlazaOverview";
@@ -70,6 +71,7 @@ const RUNTIME_CONTEXT = {
 
 const MENU_ITEMS = [
   { key: "/projects", icon: <ProjectOutlined />, label: "项目工作区" },
+  { key: "/data", icon: <DatabaseOutlined />, label: "数据中心" },
   { key: "/plaza", icon: <HomeOutlined />, label: "知识广场", children: [
     { key: "/plaza/overview", label: "馆藏概览" },
     { key: "/plaza/user", icon: <CompassOutlined />, label: "业务问答" },
@@ -227,6 +229,7 @@ export default function App() {
           {showProjectContextBar && <ProjectContextBar />}
           <Routes>
             <Route path="/admin/projects" element={<ProjectLanding />} />
+            <Route path="/admin/data" element={<DataCenterPanel />} />
             {/* Plaza */}
             <Route path="/admin/plaza/overview" element={<PlazaOverview />} />
             <Route path="/admin/plaza/user" element={<ProjectUserExperiencePanel />} />