Add feature tests for domain order management

- Implement AdminDomainOrderTest to cover admin functionalities for domain orders including listing, confirming registration, KYC updates, activation, rejection, and refunds.
- Implement ClientDomainOrderTest to cover client functionalities for placing domain orders, including validation for balance, duplicate orders, and domain normalization.
- Ensure proper handling of domain pricing and service statuses throughout the tests.

app/Http/Middleware/CheckPermission.php

@@ -14,8 +14,8 @@ class CheckPermission
         if (!$user) {
             return response()->json([
                 'error'   => true,
-                'message' => 'Vui lòng đăng nhập để thực hiện!',
-            ], 401);
+                'message' => 'Bạn không có quyền thực hiện hành động này.',
+            ], 403);
         }
 
         // Full Administrator luôn có tất cả quyền