Monorepo for Aesthetic.Computer aesthetic.computer

slab: Notification hook fades ambient + TTS "help me" master

When Claude pauses for user feedback (permission prompt / idle input) the reactive listener + synth fade via SIGTERM and `say` delivers "help me". A /tmp/slab-ambient-paused flag keeps lid-ambient.sh from re-arming on its next 0.5s tick; it's cleared on the next UserPromptSubmit or Stop. The existing "i'm tired" Stop path is unchanged. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>