无效的取消监听代码，严重时会导致内存泄漏，上方.on()绑定的是一个匿名函数，这里解绑的是匿名函数内部调用的函数，不是同一个对象

https://github.com/alibaba/lowcode-engine/blob/f6305c2284950d79b9729781f081f24f113de345/packages/shell/src/api/skeleton.ts#L162
https://github.com/alibaba/lowcode-engine/blob/f6305c2284950d79b9729781f081f24f113de345/packages/shell/src/api/skeleton.ts#L170
https://github.com/alibaba/lowcode-engine/blob/f6305c2284950d79b9729781f081f24f113de345/packages/shell/src/api/skeleton.ts#L178
https://github.com/alibaba/lowcode-engine/blob/f6305c2284950d79b9729781f081f24f113de345/packages/shell/src/api/skeleton.ts#L191
https://github.com/alibaba/lowcode-engine/blob/f6305c2284950d79b9729781f081f24f113de345/packages/shell/src/api/skeleton.ts#L204
https://github.com/alibaba/lowcode-engine/blob/f6305c2284950d79b9729781f081f24f113de345/packages/shell/src/api/skeleton.ts#L217

Open packages/shell/src/api/skeleton.ts and inspect the listener registrations and removals at lines 162, 170, 178, 191, 204, and 217. Trace each on/off pair and verify that cleanup uses the registered callback reference; done means every listener can be removed without retaining handlers or causing a memory leak.

Written by the indexing model from the issue text.