[
  {
    "type": "alter_table",
    "description": "Add workbookBackstockEnabled feature flag column to stores table",
    "database": "kiosk_buykiosk",
    "check_query": "SELECT COLUMN_NAME FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = 'kiosk_buykiosk' AND TABLE_NAME = 'stores' AND COLUMN_NAME = 'workbookBackstockEnabled'",
    "sql": "ALTER TABLE `stores` ADD COLUMN `workbookBackstockEnabled` TINYINT(1) NOT NULL DEFAULT 0 COMMENT 'Feature flag: enable backstock management in workbook' AFTER `embeddedChatEnabled`"
  }
]