修复一些问题

components/auth/auth-guard.tsx

@@ -2,7 +2,7 @@
 
 import { useEffect, useState } from 'react';
 import { useRouter, usePathname } from 'next/navigation';
-import { checkAuth, isAuthenticated } from '@/lib/auth';
+import { checkAuth, getUserProfile, isAuthenticated } from '@/lib/auth';
 import GlobalLoad from '../common/GlobalLoad';
 
 interface AuthGuardProps {
@@ -36,12 +36,10 @@ export default function AuthGuard({ children }: AuthGuardProps) {
 
       try {
         // 调用鉴权接口验证token
-        const isValid = await checkAuth();
-
-        if (isValid) {
+        const user = await getUserProfile();
+        if (user) {
           setIsAuthorized(true);
         } else {
-          // Token无效，重定向到登录页
           router.push('/login');
         }
       } catch (error) {

components/layout/top-bar.tsx

@@ -268,8 +268,8 @@ export function TopBar({
                     {/* User Info */}
                     <div className="p-4">
                       <div className="flex items-center space-x-3">
-                        <div className="h-10 w-10 rounded-full bg-[#1E4D3E] flex items-center justify-center text-white font-semibold">
-                          {currentUser.name ? currentUser.name.charAt(0) : ""}
+                        <div className="h-10 w-10 rounded-full bg-[#C73BFF] flex items-center justify-center text-white font-semibold">
+                          MF
                         </div>
                         <div className="flex-1">
                           <p className="text-sm font-medium">