Structure No Overlap

English
- Fixed compatibility with Explorer's Compass Enhance that could prevent structure searches from starting.
- Protected the target structure during both search and structure confirmation chunk loading.
- Ensured the compatibility search context is cleared even when chunk loading throws an exception.

中文
- 修复与 Explorer's Compass Enhance 不兼容导致结构搜索无法启动的问题。
- 在搜索和结构确认的区块加载期间保护目标结构。
- 确保区块加载发生异常时仍会清理兼容搜索上下文。