[UX] rewind should not default to undoing code changes

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 hitting double-esc, up, enter, Claude Code now defaults to undoing code changes.

What Should Happen?

There should be an explicit opt-in to undo.

Rewinding the conversation only should be the main choice, and users should need to manually select the 'rewind code' option rather than getting that option by default.

Error Messages/Logs

Steps to Reproduce

Described above

Claude Model

Not sure / Multiple models

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Prior to /rewind code functionality

Claude Code Version

All after /rewind code functionality

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_