ADD COLUMN IF NOT EXISTS destination_city_id VARCHAR(10) NULL COMMENT 'Shipping destination identifier (postal code or service code)' AFTER courier,
    ADD COLUMN IF NOT EXISTS tracking_status VARCHAR(50) NULL COMMENT 'Latest tracking status from shipping provider' AFTER tracking_number,
    ADD COLUMN IF NOT EXISTS destination_city_id VARCHAR(10) NULL COMMENT 'RajaOngkir city ID for destination' AFTER courier,
    ADD COLUMN IF NOT EXISTS tracking_status VARCHAR(50) NULL COMMENT 'Latest tracking status from RajaOngkir' AFTER tracking_number,
    ADD COLUMN IF NOT EXISTS tracking_updated_at TIMESTAMP NULL COMMENT 'When tracking was last refreshed' AFTER tracking_status;