Fatal error: Uncaught Error: Class 'Illuminate\Database\Migrations\Migration' not found in D:\xampp\htdocs\jconf\ck\database\migrations\2026_06_20_000011_add_staff_flag_to_users_table.php:7 Stack trace: #0 {main} thrown in D:\xampp\htdocs\jconf\ck\database\migrations\2026_06_20_000011_add_staff_flag_to_users_table.php on line 7