https://developer.work.weixin.qq.com/document/path/99485#%E6%B7%BB%E5%8A%A0%E6%88%90%E5%8A%9F%E4%BA%8B%E4%BB%B6 <img width="871" height="775" alt="Image" src="https://github.com/user-attachments/assets/1d82e6cc-b3fa-4d42-a30a-66480530863f" /> <img width="685" height="305" alt="Image" src="https://github.com/user-attachments/assets/194dc631-54da-4d12-a8c2-e219f629b31c" /> ChangeExternalContactEvent缺少LinkId字段
