[Feat]: `create-edge`能不能增加一个取消创建边的回调，现在onFinish只是创建成功的回调。

### Describe the feature / 功能描述

因为在扩展创建边交互的功能时，需要在取消创建边时，清空一些中间变量

### Are you willing to contribute? / 是否愿意参与贡献？

Please select / 请选择

No file or test is named. Start by locating the `create-edge` interaction and the existing `onFinish` callback, then determine how cancellation is exposed. Done means providing a cancellation callback that lets extensions clear intermediate state, with coverage for both successful completion and cancellation.

Written by the indexing model from the issue text.