`/status` Status tab: values render vertically (1 char per line) on Windows PowerShell

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?

In the /status dialog, the Status tab renders all values broken down to one character per line, stacked vertically, even on a wide terminal. The other tabs (Config, Usage, Stats) render correctly in the same session.

What Should Happen?

Each field (Version, Session name, Session ID, Login method, Email, Model, MCP servers, Setting sources) shows its value on the same line as the label, wrapping only if needed.

Error Messages/Logs

Labels render on the left as expected, but each value is split into a vertical strip of one character per line, despite ~150+ columns of horizontal space being free. Appears to be a layout bug that squeezes the value column to width=1.

Steps to Reproduce

1. Launch Claude Code from PowerShell 7.6 on Windows 11 (terminal window maximized, 183×30).
2. Run /status.
3. Look at the default Status tab.

<img width="495" height="433" alt="Image" src="https://github.com/user-attachments/assets/022625c7-c01f-44ef-b2cb-61329cd4c2f6" />

1. Switch to Config, Usage, Stats — these render correctly.

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

1.0.100

Claude Code Version

1.0.109

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

• Only the Status tab is affected. Config / Usage / Stats all render fine in the same session, which rules out a global width-detection problem.
• Reproduced on multiple machines by several teammates on the same version, so it does not depend on a specific local setup.

<img width="495" height="433" alt="Image" src="https://github.com/user-attachments/assets/6674bc26-1f07-47c1-8e6f-0cf7208529be" />