[Bug] [Claude for Windows] Effort level adjustment unavailable in Claude Desktop Windows v1.2773.0

Question

**Bug Description**
I'm unable to adjust the effort level in Claude Desktop for Windows (Version 1.2773.0). I’m certain this was possible in the previous version, and this is a serious bug for me.

**Environment Info**
- Platform: windows
- Claude for Windows 
- Version: Version 1.2773.0 (884b37)
- Feedback ID: 495e8c1f-d3a7-43a3-a423-fba6bb14c3bd

**Errors**
```json
[]
```