inspect: auto-exit the TUI when the run finishes (no Enter to start the judge)

The TUI dashboard blocked on an explicit dismissal key (q/Esc/Enter) after inspectors finished, and only then did the judge (SynthesisSink) run — so the user had to press Enter just to start the final consolidation. Make the model exit on runFinishedMsg instead of waiting: the judge and the narrative dump (which write to stdout after the alt-screen tears down) now run automatically. Ctrl+C during the run is unchanged. Adds a test asserting runFinishedMsg returns tea.Quit.