Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/cacart/techapp.cacart.ca/backend/database/migrations/2026_08_28_100004_add_source_variant_to_modifiers.php:9 Stack trace: #0 {main} thrown in /home/cacart/techapp.cacart.ca/backend/database/migrations/2026_08_28_100004_add_source_variant_to_modifiers.php on line 9