Today's copy says "Check that signal-cli is installed (we'll guide
you if not)" but the auto-install PR (#2281) makes that misleading —
we don't guide, we just install. Update the intro list to match what
will actually happen, and add a "no input needed for any of it" lead
so users know to expect a hands-off run.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>