feat: add domain registration form and email notifications

- Create a new Blade view for domain registration (`registrant-tochuc.blade.php`) to capture organization and manager details.
- Implement email templates for new domain orders for both admin (`domain-order-new.blade.php`) and customers (`domain-order-received.blade.php`).
- Add CSV exports for client and domain data.
- Introduce tests for customer mass assignment, password reset, login throttling, and permission gating.
- Ensure service renewals use current pricing and validate ownership for virtual machines.
- Validate mass assignment behavior in service model.

app/Services/Api/Order/OrderQueryService.php

@@ -17,14 +17,17 @@ use App\Models\OrderItem;
 use App\Models\Service;
 use App\Models\VirtualMachines;
 use App\Repositories\Api\Order\OrderRepository;
+use App\Repositories\Api\Service\ServiceRepositoryInterface;
 use Carbon\Carbon;
 use Illuminate\Contracts\Pagination\LengthAwarePaginator;
 use Illuminate\Support\Facades\DB;
 
 class OrderQueryService
 {
-    public function __construct(private readonly OrderRepository $orderRepository)
-    {
+    public function __construct(
+        private readonly OrderRepository $orderRepository,
+        private readonly ServiceRepositoryInterface $productRepo,
+    ) {
     }
 
     public function getOrdersForCustomer(int $customerId, ClientOrderFilters $filters): LengthAwarePaginator
@@ -198,11 +201,18 @@ class OrderQueryService
         }
 
         $orderItem = $service->orderItem;
-        if (! $orderItem || (int) $orderItem->price <= 0) {
+        if (! $orderItem) {
             return ['ok' => false, 'message' => 'Không thể xác định giá gia hạn dịch vụ.', 'code' => 400];
         }
 
-        $price = (int) $orderItem->price * $months;
+        // Gia hạn luôn dùng giá sản phẩm hiện tại trong bảng giá, không dùng giá đã
+        // chốt lúc đặt mua ban đầu — giá cũ chỉ để hiển thị trên đơn hàng/hoá đơn gốc.
+        $currentPrice = $this->productRepo->getPricing((int) $service->product_id, $orderItem->billing_cycle);
+        if ($currentPrice === null) {
+            return ['ok' => false, 'message' => 'Sản phẩm hiện không còn bán, không thể gia hạn.', 'code' => 400];
+        }
+
+        $price = (int) $currentPrice * $months;
 
         if ($service->invoice_id && Invoice::where('id', $service->invoice_id)
             ->where('invoice_type', 2)