fix: admin login khi close tự động logout

frontend/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:20-alpine AS base
+FROM node:22-alpine AS base
 
 WORKDIR /usr/src/app
 

frontend/src/components/LoginModal.tsx

@@ -147,6 +147,8 @@ export const LoginModal: React.FC<LoginModalProps> = ({ isOpen, onClose, onSwitc
       // Lưu phiên đăng nhập
       localStorage.setItem('token', data.access_token);
       localStorage.setItem('user', JSON.stringify(data.user));
+      localStorage.removeItem('guest_token');
+      localStorage.removeItem('guest_user');
       console.log('[LoginModal] Email/password login successful');
 
       // Regular login - no auto-join for tour