feat(events): associate purchases and integrations with events

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

@@ -14,6 +14,7 @@ class PurchaseResponseLoader
             === StorefrontWebsiteType::CHECKOUT_SUMMARY_EVENT;
         $relations = [
             'tenant',
+            'event.attachment',
             'items.sourceCatalogItem.event.attachment',
             'stockReservation',
         ];

app/Domains/Commerce/Purchase/Services/Checkout/StartCheckoutService.php

@@ -206,6 +206,7 @@ class StartCheckoutService
                 fn (array $line): float => $line['selection']->getPrice() * $line['quantity'],
             ),
             $cart->getKey(),
+            $cartItems->first()?->catalogItem?->event_id,
         );
         $cart->update(['current_purchase_id' => $purchase->getKey()]);
         $this->reservations->attachToPurchase($cart, $purchase, $this->checkoutExpiration());
@@ -273,6 +274,7 @@ class StartCheckoutService
             $purchaseData,
             $cart->getTotalAmount(),
             $cart->getKey(),
+            $cartItems->first()?->catalogItem?->event_id,
         );
         $cart->update(['current_purchase_id' => $purchase->getKey()]);
         $this->reservations->attachToPurchase($cart, $purchase, $this->checkoutExpiration());
@@ -410,10 +412,12 @@ class StartCheckoutService
         array $purchaseData,
         float $total,
         ?int $cartId,
+        ?int $eventId,
     ): Purchase {
         return Purchase::query()->create([
             ...$purchaseData,
             'cart_id' => $cartId,
+            'event_id' => $eventId,
             'tenant_codigo' => $tenant->codigo,
             'user_id' => $userId,
             'status' => Purchase::STATUS_CREATED,