refactor: ♻️ 用户信息不再本地持久化，改为内存态：刷新页面后需要重新请求用户信息

src/composables/useOnlineCount.ts

@@ -1,7 +1,7 @@
 import { ref, onMounted, onUnmounted, watch, getCurrentInstance } from "vue";
 import { useStomp } from "./useStomp";
 import { registerWebSocketInstance } from "@/plugins/websocket";
-import { Auth } from "@/utils/auth";
+import { AuthStorage } from "@/utils/auth";
 
 // 全局单例实例
 let globalInstance: ReturnType<typeof createOnlineCountHook> | null = null;

src/composables/useStomp.ts

@@ -1,5 +1,5 @@
 import { Client, type IMessage, type StompSubscription } from "@stomp/stompjs";
-import { Auth } from "@/utils/auth";
+import { AuthStorage } from "@/utils/auth";
 
 export interface UseStompOptions {
   /** WebSocket 地址，不传时使用 VITE_APP_WS_ENDPOINT 环境变量 */