提供基本前后端骨架

frontend/src/app/page.tsx

@@ -0,0 +1,28 @@
+'use client';
+
+import { useEffect } from 'react';
+import { useRouter } from 'next/navigation';
+import { useAuthStore } from '@/lib/store';
+import { PageLoader } from '@/components/ui';
+
+export default function HomePage() {
+  const router = useRouter();
+  const { isAuthenticated, isLoading, fetchUser } = useAuthStore();
+
+  useEffect(() => {
+    fetchUser();
+  }, [fetchUser]);
+
+  useEffect(() => {
+    if (!isLoading) {
+      if (isAuthenticated) {
+        router.replace('/dashboard');
+      } else {
+        router.replace('/login');
+      }
+    }
+  }, [isLoading, isAuthenticated, router]);
+
+  return <PageLoader />;
+}
+