[BUG] Code container is overflowing

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

<img width="1731" height="579" alt="Image" src="https://github.com/user-attachments/assets/35a6b1ad-6341-4567-aa7a-b5364f90c6a6" />

here you can see the container is overflow

What Should Happen?

While writing code in container the code is overflowing.

Error Messages/Logs

Steps to Reproduce

<img width="1731" height="579" alt="Image" src="https://github.com/user-attachments/assets/18082c94-0388-4226-bf83-091362209fda" />

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

sonnet 4.5

Platform

Other

Operating System

Windows

Terminal/Shell

Other

Additional Information

_No response_