feat: add item editing preparation and enhance payment intent handling in PurchaseController

app/Domains/Purchase/Controllers/PurchaseController.php

@@ -104,6 +104,19 @@ class PurchaseController extends Controller
         Tenant $tenant,
         Purchase $compra,
         CheckoutService $checkoutService,
+    ): PurchaseResource {
+        $compra = $this->resolveScopedPurchase($tenant, $request->user()->id, $compra);
+
+        return PurchaseResource::make(
+            $checkoutService->prepareItemEditing($compra),
+        );
+    }
+
+    public function paymentIntent(
+        PaymentIntentRequest $request,
+        Tenant $tenant,
+        Purchase $compra,
+        CheckoutService $checkoutService,
     ): JsonResponse {
         $compra = $this->resolveScopedPurchase($tenant, $request->user()->id, $compra);
         $method = $request->validated('method');