Refactor Catalog API: Remove Create Catalog Item Endpoint and Update Related Logic

- Removed the "Create Catalog" endpoint from the Postman collection.
- Updated the CatalogController to handle tenant-specific catalog items based on active events.
- Refactored CatalogItem model to automatically set event_id based on tenant's active_event_id during creation.
- Deleted StoreCatalogItemRequest and CatalogItemResource as they are no longer needed.
- Updated various services and controllers to utilize the new tenant-based catalog item retrieval logic.
- Added tests to ensure that catalog reads are limited to items associated with the active event.

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

@@ -359,6 +359,13 @@ class StartCheckoutService
                     'cart_id' => __('api.purchase.catalog_item_wrong_tenant'),
                 ]);
             }
+
+            if ($tenant->active_event_id !== null
+                && $item->catalogItem->event_id !== $tenant->active_event_id) {
+                throw ValidationException::withMessages([
+                    'cart_id' => __('api.purchase.catalog_item_missing'),
+                ]);
+            }
         }
     }