添加 vue-router 依赖并配置路由，重构登录组件，完善 HTTP 请求拦截器以支持 token 刷新机制

src/main.js

@@ -1,10 +1,12 @@
 import { createApp } from 'vue'
 import ElementPlus from 'element-plus'
 import 'element-plus/dist/index.css'
-
+import router from '@/router'
 import App from './App.vue'
+import { setupPermissionDirective } from './directives/permission'
 
 const app = createApp(App)
 app.use(ElementPlus)
+app.use(router)
+setupPermissionDirective(app)
 app.mount('#app')
-