[BUG] Session title missing from prompt input box when resuming by UUID

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 resuming a session with claude --resume <UUID>, the session title appears in the
terminal pane title bar (iTerm2/tmux) but not in the top-right label of the prompt
input box.

When resuming with claude --resume "<title>" (using the session's display title), the
title appears in both locations as expected.

Environment

• Claude Code version: 2.1.92
• OS: Linux
• Terminal: iTerm2 / tmux

What Should Happen?

The session title should appear in the prompt input box label regardless of whether the
session was resumed by UUID or by title.

Error Messages/Logs

No error:
- `claude --resume <UUID>`: title shown in pane title bar only, **missing** from prompt
  input box
- `claude --resume "<title>"`: title shown in **both** pane title bar and prompt input box

Steps to Reproduce

1. Start a session and note its UUID and title
2. Exit the session
3. Resume with claude --resume <UUID> — observe the prompt input box has no title label

in the top right

1. Exit again
2. Resume with claude --resume "<title>" — observe the title label now appears in the

top right of the prompt input box

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.92 (Claude Code)

Platform

Google Vertex AI

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

_No response_