feat: add admin auth middleware

frontend/admin/src/pages/LoginPage.vue

@@ -25,6 +25,10 @@ const validateForm = () => {
         errorMessage.value = '请输入密码';
         return false;
     }
+    if (password.value.length < 8) {
+        errorMessage.value = '密码至少需要8个字符';
+        return false;
+    }
     return true;
 };
 
@@ -35,7 +39,8 @@ const handleLogin = async () => {
     errorMessage.value = '';
 
     try {
-        const token = await authService.login(username.value, password.value);
+        const resp = await authService.login(username.value, password.value);
+        const { token } = resp.data;
         authStore.setToken(token);
         router.push('/');
     } catch (error) {