Optic Thermal Upgrade

A thermal channel added to an existing optic suite, useful for hot bearings, warm bodies behind thin partitions, and coffee somebody abandoned five minutes ago. Installation replaces the inner sensor wafer and retrains the overlay's color scale against the user's natural vision. Heat bloom and reflective foil still lie. The upgrade also records calibration scenes, which can include every face in the clinic unless the owner remembers to purge them. Meridian schedules follow-up maintenance through the same account, so privacy and warranty coverage become one unpleasant negotiation. Port clinics will service a transferred Optic Thermal Upgrade only after checking its serial and tissue logs. That protects patients, mostly, and makes anonymous ownership a costly hobby.