use the alternate screen buffer

[zion-off]

Summary

should the cli use the alternate screen buffer? there's a bunch of quirks that this could solve

Expected Behavior

open the editor while the model is reasoning you should be able to type in your editor normally while the agent keeps working in the background

Actual Behavior

open the editor while the model is reasoning it messes everything up

Steps to reproduce the issue

1. set EDITOR to nvim
2. prompt the agent
3. wait for it to start reasoning
4. hit ctrl+g

Command Code Version

0.30.1

Operating System

macOS

Terminal/IDE

ghostty

Shell

zsh

Additional context

No response