feat: add multi-city representation support and domain context resolution

- Created migration to add representation_cities table and domain, is_global fields to representations.
- Implemented SiteContextController to resolve domain to site context (city | representation | unknown).
- Developed DomainContext and DomainContextResolver services for domain mapping.
- Added tests for DomainContextResolver and commission logic based on domain ownership.

src/Appointment/Controller/AppointmentController.php

@@ -32,7 +32,7 @@ class AppointmentController extends BaseController
         private readonly SlotCalculatorService  $slotCalculator,
         private readonly PatientService         $patientService,
         private readonly WeeklyScheduleRepository $scheduleRepo,
-        private readonly \App\Representation\Repository\RepresentationRepository $representationRepo,
+        private readonly \App\Representation\Service\DomainContextResolver $domainResolver,
     ) {}
 
     // ── Public: available slots ───────────────────────────────────────────────
@@ -260,13 +260,11 @@ class AppointmentController extends BaseController
         $appointment->setPatientGender($gender);
         if (isset($data['note'])) $appointment->setNote($data['note']);
 
-        // نماینده‌ی دامنه‌ی جاری (city_id از سایت)؛ برای گاردِ پورسانت.
-        $cityId = (int) ($data['city_id'] ?? 0);
-        if ($cityId > 0) {
-            $bookingRep = $this->representationRepo->findActiveByCityId($cityId);
-            if ($bookingRep !== null) {
-                $appointment->setBookingRepresentationId($bookingRep->getId());
-            }
+        // نماینده‌ی دامنه‌ی مبدأ رزرو (از Origin مرورگر)؛ گاردِ نهایی پورسانت در لحظه‌ی
+        // پرداخت دوباره از payment.frontend_address محاسبه می‌شود — این فقط ثبتِ لحظه‌ی رزرو است.
+        $bookingCtx = $this->domainResolver->resolve($request->headers->get('origin'));
+        if ($bookingCtx->representationId() !== null) {
+            $appointment->setBookingRepresentationId($bookingCtx->representationId());
         }
 
         // آدرس نوبت از روی session متناظر در برنامه‌ی هفتگی تعیین می‌شود (location_id).