Biomekka 1.8.44 - HEATWAVE FASTFIX

Fast fix after 1.8.43 compile failure:
- Removed the broken dashboard heatwave JSON additions entirely.
- No new Grafana payload fields are added.
- Removed heatwave state-change telemetry event posts so Grafana is not spammed by mode changes.
- Trickle still runs normal 5s/3min outside heatwave.
- Heatwave cooling still runs 10s trickle, then 10s mister, then 40s airflow-only each 60s above 28.0C.
- Trickle ON and OFF are now reasserted to Goblin every 0.5s during their respective states.
- Full Goblin output sync interval tightened from 5s to 1s.