feat(payment): enhance payment configuration to include active gateways and update CORS settings

src/Payment/Controller/PaymentController.php

@@ -545,12 +545,36 @@ class PaymentController extends BaseController
     #[Route('/api/v1/payment/config', methods: ['GET'])]
     public function config(): JsonResponse
     {
+        $testMode = $this->configRepo->get('payment_test_mode') === '1';
+
         return $this->success([
-            'test_mode'             => $this->configRepo->get('payment_test_mode') === '1',
-            'appointment_fee_rials' => (int) $this->configRepo->get('appointment_fee_rials'),
+            'test_mode'             => $testMode,
+            'appointment_fee_rials' => (int) ($this->configRepo->get('appointment_fee_rials') ?: 0),
+            'gateways'              => $this->activeGateways($testMode),
         ]);
     }
 
+    /**
+     * درگاه‌های قابل‌انتخاب: در حالت تست فقط درگاه آزمایشی، در غیر این صورت هر درگاهی که اعتبارنامه‌اش ست شده.
+     * @return array<int, array{name: string, label: string}>
+     */
+    private function activeGateways(bool $testMode): array
+    {
+        if ($testMode) {
+            return [['name' => 'mellat', 'label' => 'بانک ملت (آزمایشی)']];
+        }
+
+        $labels   = ['mellat' => 'بانک ملت', 'sep' => 'سپ (سامان کیش)'];
+        $gateways = [];
+        foreach ([$this->mellat, $this->sep] as $gateway) {
+            if ($gateway->isConfigured()) {
+                $name       = $gateway->getName();
+                $gateways[] = ['name' => $name, 'label' => $labels[$name] ?? $name];
+            }
+        }
+        return $gateways;
+    }
+
     #[IsGranted('IS_AUTHENTICATED_FULLY')]
     #[Route('/api/v1/my/payments', methods: ['GET'])]
     public function myPayments(Request $request, #[CurrentUser] User $user): JsonResponse