[BUG] Paste (Ctrl+V / Shift+Insert) not working in auth prompt over SSH

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 Claude Code displays the authentication string input prompt, paste does not work. Both Ctrl+V and Shift+Insert are non-functional at this specific prompt when connected via SSH.

What Should Happen?

Paste should work in the auth prompt so the authentication string can be entered without typing it manually.

Error Messages/Logs

N/A

Steps to Reproduce

1. SSH into Ubuntu from Windows Terminal
2. Run claude and reach the auth string input prompt
3. Attempt to paste the auth string with Ctrl+V or Shift+Insert
4. Nothing is pasted — keyboard input works but paste does not

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Claude Code v2.1.107

Claude Code Version

Claude Code v2.1.107

Platform

Anthropic API

Operating System

Other Linux

Terminal/Shell

PowerShell

Additional Information

The auth string is too long to type manually, so paste not working makes authentication impossible without a workaround (setting ANTHROPIC_API_KEY as an environment variable before launching).