Unsent composer text is discarded when the app prompts for re-login

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?

While typing a long message in the composer, the app prompted me to
re-authenticate. After signing back in, the text I had typed was gone.

The conversation transcript itself was intact — only the unsent draft
was lost.

I searched the local app state afterwards and the draft is not
persisted anywhere:

• %APPDATA%\Claude\claude-code-sessions\<...>\local_*.json (only session metadata)
• %APPDATA%\Claude\Local Storage\leveldb
• %APPDATA%\Claude\IndexedDB
• %APPDATA%\Claude\Session Storage
• %USERPROFILE%\.claude\projects\<project>\<session>.jsonl (only sent messages)

A re-login prompt is a predictable, app-initiated interruption, not a
crash. The composer draft should be saved before the app interrupts the
session, and restored afterwards.

What Should Happen?

1. Open the Claude Code desktop app on Windows
2. Start typing a long message in the composer; do not send it
3. Wait for the app to prompt for re-authentication
4. Sign in again
5. The composer is empty — the typed text is gone

Error Messages/Logs

The composer draft is preserved across the re-login prompt and restored
after signing back in.

Steps to Reproduce

Claude Code desktop app (Code tab), Windows 11 Pro 10.0.26200

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude Code desktop app (Code tab), Windows 11 Pro 10.0.26200

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_