Phase 3.8: Asset Center Enhancement - fix list endpoint with raw SQL, admin asset management deployed

frontend/src/components/layout/AdminLayout.tsx

@@ -56,6 +56,7 @@ const navGroups: NavGroup[] = [
       { path: '/admin/settings', icon: 'settings', label: '站点设置' },
       { path: '/admin/logs', icon: 'logs', label: '日志管理' },
       { path: '/admin/storage', icon: 'storage', label: '存储管理' },
+    { path: '/admin/asset-center', icon: 'database', label: '资产中心' },
       { path: '/admin/automation', icon: 'automation', label: '自动化任务' },
       { path: '/admin/developer', icon: 'developer', label: '开发者工具' },
     ],