feat: 重构signalr，在线人数允许不用登录

Yi.Bbs.Vue3/src/layout/AppHeader.vue

@@ -86,7 +86,6 @@ import useUserStore from "@/stores/user.js";
 import useConfigStore from "@/stores/config";
 import useAuths from "@/hooks/useAuths";
 import { Session } from "@/utils/storage";
-import signalR from "@/utils/signalR";
 
 const { isLogin, clearStorage } = useAuths();
 const configStore = useConfigStore();
@@ -106,7 +105,6 @@ const logout = async () => {
   }).then(async () => {
     //异步
     await userStore.logOut();
-    await signalR.close();
     //删除成功后，跳转到主页
     router.push("/login");
     ElMessage({