feat: ✨ 添加用户管理页

frontend/src/components/AdminLayout.tsx

@@ -4,7 +4,7 @@ import {
   MenuFoldOutlined,
   MenuUnfoldOutlined,
   DashboardOutlined,
-  UserOutlined,
+  SettingOutlined,
   LogoutOutlined,
 } from '@ant-design/icons';
 import { Outlet, useNavigate, useLocation } from 'react-router-dom';
@@ -30,7 +30,7 @@ const AdminLayout = () => {
       logout();
       message.success('登出成功');
       navigate('/admin/login');
-    } catch (error) {
+    } catch {
       message.error('登出失败');
     }
   };
@@ -43,12 +43,12 @@ const AdminLayout = () => {
     },
     {
       key: 'user',
-      icon: <UserOutlined />,
-      label: '用户管理',
+      icon: <SettingOutlined />,
+      label: '系统管理',
       children: [
         {
           key: '/admin/users',
-          label: '用户列表',
+          label: '用户管理',
         },
       ],
     },