feat: 优化退出登录交互体验

- 退出登录后跳转到登录页而非主页
- 添加退出成功的提示信息
- 提升用户体验和操作流畅度

src/layout/Header.tsx

@@ -4,7 +4,7 @@
 
 import React, { useState, useEffect } from 'react'
 import { Link, useLocation, useNavigate } from 'react-router-dom'
-import { Menu, Drawer, Button, Space, Avatar, Dropdown } from 'antd'
+import { Menu, Drawer, Button, Space, Avatar, Dropdown, message } from 'antd'
 import {
   MenuOutlined,
   HomeOutlined,
@@ -74,7 +74,8 @@ const Header: React.FC = () => {
   // 处理退出登录
   const handleLogout = () => {
     logout()
-    navigate('/')
+    message.success('退出成功')
+    navigate('/login')
   }
 
   // 用户下拉菜单