TUI shortcut overlay says Ctrl+C exits while running work makes Ctrl+C interrupt

What happened?

The TUI shortcut overlay labels Ctrl+C as:

to exit

The overlay can persist while a task is running. In that state, the interaction handler uses Ctrl+C to interrupt cancellable work instead of exiting.

This makes the shortcut overlay misleading during active turns: the visible hint says exit, but the implemented behavior is interrupt.

Expected behavior

The shortcut overlay should either use conditional wording for Ctrl+C while work is running, or use wording that covers both exit and interrupt behavior.

Additional context

I searched open issues and PRs for terms including TUI shortcut overlay, Ctrl+C, exit, interrupt, and running task, and did not find an existing open item that appears to cover this current UI copy mismatch.