Zone role is record-only: brain control loop must enforce Dry/Cure (lamp dark lock, appliance allow-list, rule set)

Pass C (2026-09-07) records zone roles and re-bands the SPA, but a flip does not touch actuators — the UI shows ‘LAMP ON · ROLE NOT ENFORCED’ when a non-grow zone’s lamp is on. The control pass should: read the role per space; Dry/Cure → lamp off + dark lock (manual light hold), fans indirect/no draft, dehumidifier ceiling / humidifier floor from the Dry Mode rail; Empty → appliances idle; Grow → restore; swap the automation rule set per role; write each enforcement to the grow log. Soak on the Pi with the 2×4 before trusting.