[BUG] Ctrl+T task panel not available after /resume within interactive session

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report
• [x] I am using the latest version of Claude Code

What's Wrong?

When using /resume from within an interactive Claude Code session to switch to a session that has active tasks, the task panel (toggled via Ctrl+T) does not work. The keybinding is a no-op.

Resuming the same session from the command line with claude --resume <UUID> works correctly — Ctrl+T toggles the task panel as expected.

Steps to Reproduce

1. Start Claude Code session A
2. Create tasks via TaskCreate (confirm they appear with Ctrl+T)
3. Start or /resume into a different session B
4. From session B, use /resume to switch back to session A
5. Press Ctrl+T — nothing happens, task panel does not appear
6. Exit and run claude --resume <session-A-UUID> from the terminal
7. Press Ctrl+T — works correctly, task panel appears with all tasks

What Should Happen?

Ctrl+T should toggle the task panel after /resume within an interactive session, matching the behavior of resuming from the command line.

Claude Code Version

2.1.81 (Claude Code)

Platform

Anthropic (Claude Max)

Operating System

Ubuntu Linux 24.04

Terminal/Shell

bash