feat: 重构数据中枢工作台与接入管理

- 新增统一的数据源、目录、纳管表与 Excel 处理后端能力

- 重建管理端数据中枢工作台并替换旧表管理页面

- 补充数据中枢迁移脚本、连接器底座与说明字段支持

easyflow-ui-admin/app/src/router/routes/modules/datacenter.ts

@@ -6,14 +6,39 @@ const routes: RouteRecordRaw[] = [
   {
     meta: {
       icon: 'clarity:database',
-      title: $t('datacenterTable.title'),
+      title: $t('menus.ai.datacenter'),
+      hideInMenu: true,
+      activePath: '/datacenter',
+    },
+    name: 'DatacenterWorkspace',
+    path: '/datacenter',
+    component: () => import('#/views/datacenter/DatacenterWorkspace.vue'),
+  },
+  {
+    meta: {
+      icon: 'clarity:database',
+      title: $t('menus.ai.datacenter'),
       hideInMenu: true,
       hideInTab: true,
       hideInBreadcrumb: true,
+      activePath: '/datacenter',
     },
-    name: 'TableDetail',
-    path: '/datacenter/table/tableDetail',
-    component: () => import('#/views/datacenter/DatacenterTableDetail.vue'),
+    name: 'DatacenterSourceAccessLegacy',
+    path: '/datacenter/source',
+    redirect: '/datacenter',
+  },
+  {
+    meta: {
+      icon: 'clarity:database',
+      title: $t('menus.ai.datacenter'),
+      hideInMenu: true,
+      hideInTab: true,
+      hideInBreadcrumb: true,
+      activePath: '/datacenter',
+    },
+    name: 'DatacenterDatasetManageLegacy',
+    path: '/datacenter/dataset',
+    redirect: '/datacenter',
   },
 ];