[BUG] VSCode extension: long pasted user messages render fully expanded with no collapse/'show less' control, pushing assistant responses out of view.

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?

VSCode extension: long pasted user messages render fully expanded with no collapse/'show less' control, pushing assistant responses out of view.

<img width="1916" height="1079" alt="Image" src="https://github.com/user-attachments/assets/f855b82a-5971-47a2-aebb-8d2bf5d19d10" />

What Should Happen?

it should give me show less so i can see your response

Error Messages/Logs

Steps to Reproduce

just past long json file content

Claude Model

Opus

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.1.160 (Claude Code)

Platform

Other

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_