[BUG] iOS app: Cannot scroll to view previous messages when composing long responses in Code mode

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 using Code mode on the Claude iOS app with a connected GitHub repository, composing a long multi-part response causes the input field to expand vertically. Combined with the on-screen keyboard, this completely obscures Claude's previous message, making it impossible to reference the content I'm trying to respond to. There is no way to scroll up or dismiss the keyboard to view the context.

What Should Happen?

User should be able to scroll up to view Claude's previous message while composing a response, OR there should be a way to temporarily dismiss the keyboard, OR the input field should have a maximum height with internal scrolling.

Error Messages/Logs

N/A — This is a UI/UX issue, not a crash or error. No error messages are generated.

Steps to Reproduce

Open the Claude iOS app (v1.251215.4) on iPhone
Start or continue a conversation in Code mode with a connected GitHub repository
Receive a message from Claude containing multiple numbered questions/points
Begin typing a detailed, multi-part response
As the input field grows taller, observe that Claude's previous message becomes hidden
Attempt to scroll up or tap above the input field — nothing happens

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

not sure

Claude Code Version

N/A — iOS App v1.251215.4 (not CLI)

Platform

Other

Operating System

Other

Terminal/Shell

Other

Additional Information

<img width="590" height="1278" alt="Image" src="https://github.com/user-attachments/assets/1797ec98-0018-478b-943f-c48a911b81c5" />