feat: enhance purchase loading logic to include cart items when purchase items are empty

app/Domains/Purchase/Services/Checkout/PurchaseResponseLoader.php

@@ -10,6 +10,19 @@ class PurchaseResponseLoader
     {
         $purchase->load(['tenant', 'items.imageAttachment']);
 
+        if ($purchase->items->isEmpty() && $purchase->cart_id !== null) {
+            $purchase->load([
+                'cart.items.catalogItem.inventory',
+                'cart.items.catalogItem.attachments',
+                'cart.items.variant.inventory',
+                'cart.items.variant.attachments',
+                'cart.items.variant.catalogItem',
+                'cart.items.variant.definitions.itemAttribute.attribute',
+                'cart.items.variant.eventDates',
+                'cart.items.variant.eventDate',
+            ]);
+        }
+
         if (! $purchase->tenant->cart_editing_policy->allowsVariantChanges()) {
             return $purchase;
         }