[FEATURE] Display persistent task summary in terminal UI

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

When running multiple Claude Code agents in separate terminals, it's easy to lose track of which agent is working on what task.

Proposed Solution

Keep a brief summary of the initial prompt/task visible in the interface at all times (e.g., in a header bar or status line). This would allow users to quickly identify what each agent is doing when switching between terminal windows.

Alternative Solutions

_No response_

Priority

Medium - Would be very helpful

Feature Category

CLI commands and flags

Use Case Example

• Running several agents in parallel on different tasks
• Returning to a terminal after some time away
• Quickly scanning multiple terminal windows to find a specific task

This would be a small UI addition but a significant quality-of-life improvement for users who work with multiple concurrent agents.

Additional Context

_No response_