Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in D:\laragon\www\teeu\database\migrations\2026_08_21_100000_widen_product_characteristic_value.php:18 Stack trace: #0 {main} thrown in D:\laragon\www\teeu\database\migrations\2026_08_21_100000_widen_product_characteristic_value.php on line 18