Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/fortebku/smtp-mail/database/migrations/2026_03_20_000001_add_performance_optimization_indexes.php:7 Stack trace: #0 {main} thrown in /home/fortebku/smtp-mail/database/migrations/2026_03_20_000001_add_performance_optimization_indexes.php on line 7