[BUG] `/login` and `claude auth login` URL is not clickable as URL line breaks

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?

Running /login inside Claude Code or running claude auth login causes the URL to break so it's impossible to click the hyperlink directly.

<img width="3147" height="154" alt="Image" src="https://github.com/user-attachments/assets/29fbe28e-390b-4f63-9b96-cc61a51abe4c" />

<img width="3149" height="142" alt="Image" src="https://github.com/user-attachments/assets/fb7203d0-a1cf-430e-a78c-debd0280ee9c" />

What Should Happen?

The URL should be easily copyable in a headless environment and also clickable easily in a headless environment.

An example of a headless environment would be in Jupyter or WSL. For context, any URLs rendered in Codex regardless of length are fully clickable without line breaking.

Error Messages/Logs

Steps to Reproduce

1. Run this in a headless environment like a WSL terminal or JupyterLab
2. Open Claude Code and then /login or claude auth login.
3. Try to click the URL, it ends up line breaking.

Claude Model

None

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.1.217 (Claude Code)

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Xterm

Additional Information

This happens in any headless environment, but in general it seems URL rendering is broken due to the line breaks.