refactor: remove PaymentProviderInterface and TelepagosProvider, simplify CheckoutService and related tests

app/Domains/Purchase/Controllers/PurchaseController.php

@@ -31,18 +31,11 @@ class PurchaseController extends Controller
     public function store(StorePurchaseRequest $request, Tenant $tenant, CheckoutService $checkoutService): JsonResponse
     {
         $data = $request->validated();
-        
-        $integrationCode = $data['integration_code'];
-        $paymentData = $data['payment_data'];
-        
-        unset($data['integration_code'], $data['payment_data']);
 
         $purchase = $checkoutService->processCheckout(
             $tenant,
             $request->user()->id,
-            $data,
-            $integrationCode,
-            $paymentData
+            $data
         );
 
         return PurchaseResource::make($purchase)->response()->setStatusCode(201);

app/Domains/Purchase/Services/CheckoutService.php

@@ -7,7 +7,6 @@ use App\Domains\Purchase\Models\Purchase;
 use App\Domains\Tenant\Models\Tenant;
 use Illuminate\Support\Facades\DB;
 use Illuminate\Validation\ValidationException;
-use Exception;
 
 class CheckoutService
 {