feat(admin): improve payments and server settings

app/Jobs/VirtualMachine/Provision/SendVmCredentialsEmailJob.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace App\Jobs\VirtualMachine\Provision;
 
 use App\Http\Services\Telegram;
+use App\Enums\Product\ProductBillingCycle;
 use App\Jobs\Mail\Admin\AdminOrderNotificationJob;
 use App\Jobs\Mail\SendInformationVirtualMachine;
 use App\Models\Invoice;
@@ -97,7 +98,7 @@ class SendVmCredentialsEmailJob implements ShouldQueue
             'order_num'      => $order?->order_num ?? $order?->id ?? 'N/A',
             'product_name'   => $orderItem?->getProductAttribute()?->name ?? 'Cloud VPS',
             'product_type'   => 'Cloud VPS',
-            'billing_cycle'  => $this->billingLabel($months),
+            'billing_cycle'  => ProductBillingCycle::vietnameseLabelForMonths($months),
             'total'          => $orderItem?->price ?? 0,
             'created_at'     => $order?->created_at?->format('d/m/Y H:i:s') ?? now()->format('d/m/Y H:i:s'),
             'ip'             => $vm->ip ?? '',
@@ -171,15 +172,4 @@ class SendVmCredentialsEmailJob implements ShouldQueue
 
     // ─────────────────────────────────────────────────────────────────────────
 
-    private function billingLabel(?int $months): string
-    {
-        return match ($months) {
-            1       => 'Hang thang',
-            3       => '3 Thang',
-            6       => '6 Thang',
-            12      => 'Hang nam',
-            24      => '2 Nam',
-            default => ($months ?? 0) . ' Thang',
-        };
-    }
 }