[BUG] Claude input overlay remains visible when editor group is maximized in VS Code

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?

When using "View: Toggle Maximize Group" (Cmd+K, Cmd+M) to focus on a text editor, the Claude Code chat input panel remains visible as a floating overlay in the upper-left corner of the screen. It cannot be dismissed, and clicking or right-clicking on it un-maximizes the editor group instead of interacting with Claude. (see image)

<img width="1192" height="930" alt="Image" src="https://github.com/user-attachments/assets/a3d7fef8-a090-4069-b4e5-746b7e36656e" />

What Should Happen?

I should be able to hide the Claude Code editor group.

Error Messages/Logs

Steps to Reproduce

1. Open VS Code with the Claude Code extension installed and a Claude session active
2. Open any text file in the editor
3. Press Cmd+K, Cmd+M (View: Toggle Maximize Group)
4. Observe the Claude input widget floating over the maximized editor

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.56

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_