## Summary
- CognitiveTracker.update() now emits `cognitive_state_changed` events to the SensoryBus
- WorkshopHeartbeat (and other subscribers) react immediately to mood/engagement changes
- Closes the sense → memory → react loop described in the Workshop architecture
- Fire-and-forget emission — never blocks the chat response path
- Gracefully skips when no event loop is running (sync contexts/tests)
## Test plan
- [x] 3 new tests: event emission, mood change tracking, graceful skip without loop
- [x] All 1935 unit tests pass
- [x] Lint + format clean
Fixes#222
Co-authored-by: kimi <kimi@localhost>
Reviewed-on: http://localhost:3000/rockachopa/Timmy-time-dashboard/pulls/414
Co-authored-by: Kimi Agent <kimi@timmy.local>
Co-committed-by: Kimi Agent <kimi@timmy.local>
