[BUG] Bring back the Ctrl-s to minimize or expand command and tool output

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 one of the previous claude code versions, the developrs added a improvement, when a tool or command's output was more than a few lines, claude code only dispayed a few lines while still allowing user to expand the output with probably Ctrl-s, it actually fixed a lot of autoscrolling bugs that happen in claude codever long sessions. I believe bringing it back will fix many of the autoscroll bugs & is a net improvement in Claude Code UX.

Here is how it currently behaves
● Bash(ls -F)
⎿  Dockerfile
LICENSE
README.md
README_CN.md
assets/
auths/
cli-proxy-api*
cmd/
config.example.yaml
config.yaml
docker-build.ps1
docker-build.sh
docker-compose.yml
docs/
examples/
go.mod
go.sum
internal/
logs/
sdk/
static/
test/

What Should Happen?

Dersired behaviour
● Bash(ls -F)
⎿  Dockerfile
LICENSE
README.md
auths/
cli-proxy-d/
config.example.yaml
Ctrl-s to expand

Error Messages/Logs

Steps to Reproduce

1. Open Claude Code
2. Ask it to run a tool (eg. any command or tool that gives output)
3. The output auto expands instead of giving a way to control it, which causes autoscrolling because of long scrollback of terminal due to these command & tool outputs

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.1

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

iTerm2

Additional Information

_No response_