feat(catalog): add group_order field to catalog items and update related logic

app/Domains/Catalog/Requests/StoreCatalogItemRequest.php

@@ -51,6 +51,7 @@ class StoreCatalogItemRequest extends FormRequest
                 ),
             ],
             'nombre' => ['required', 'string', 'max:255'],
+            'group_order' => ['sometimes', 'integer', 'min:0'],
             'descripcion' => ['sometimes', 'nullable', 'string'],
             'precio' => ['required', 'numeric', 'min:0'],
             'inventory_policy' => [Rule::prohibitedIf($isBundle), 'sometimes', Rule::enum(InventoryPolicy::class)],