feat: 机台 add/update 同车间坐标唯一校验
抽取 assertWorkshopPositionAvailable,与实景地图 update_position 规则对齐,防止同车间启用机台坐标重复。
Co-authored-by: Cursor cursoragent@cursor.com
抽取 assertWorkshopPositionAvailable,与实景地图 update_position 规则对齐,防止同车间启用机台坐标重复。
Co-authored-by: Cursor cursoragent@cursor.com