- test_create_import_job_database_error: Monkeypatch db.flush instead of db.commit since service uses flush() per architecture rules - test_create_product_already_exists: Store product_id before exception and rollback session to clear PendingRollbackError state - test_delete_product_success: Add db.flush() to delete_product service method to ensure deletion is applied before verification 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>