近期发现自定义交易组件新增了接口，有以下问题不明白，还请大佬指导～

1、商品系统下架通知接口：是 微信系统下架商品，还是商家在直播间下架商品的通知？

https://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/business-capabilities/ministore/minishopopencomponent2/callback/spu_status_update.htm

2、订单结算成功接口：这个接口在什么业务场景下会发送这个回调？

https://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/business-capabilities/ministore/minishopopencomponent2/callback/order_settle.html

3、订单取消接口：这个接口在什么业务场景下会发送这个回调？c用户在视频号订单列表主动取消订单？

https://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/business-capabilities/ministore/minishopopencomponent2/callback/order_cancel.html

4、订单结算成功回调：这个接口在什么业务场景下会发送这个回调？ 商户号收款？

https://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/business-capabilities/ministore/minishopopencomponent2/callback/order_settle.html、