어드민 계정 식별 방법 수정

frontend/components/layout/AppLayout.tsx

@@ -416,7 +416,7 @@ function AppLayoutInner({ children }: AppLayoutProps) {
           } flex h-[calc(100vh-3.5rem)] w-72 max-w-72 min-w-72 flex-col border-r border-slate-200 bg-white transition-transform duration-300`}
         >
           {/* 사이드바 상단 - Admin/User 모드 전환 버튼 (관리자만) */}
-          {(user as ExtendedUserInfo)?.userType === "admin" && (
+          {(user as ExtendedUserInfo)?.userType?.toLowerCase().includes("admin") && (
             <div className="border-b border-slate-200 p-3">
               <Button
                 onClick={handleModeSwitch}