Ember holds a room temperature or a schedule and the hash follows the duty cycle: the miners run for a share of
every 10-minute period and stop for the rest (src/heat.rs, the PI loop decided once per period; engine.rs tick_heat,
heat_rest and heat_release the way a remote job holds the cards). The temperature source is a typed reading (fresh
two hours) or the coolest card's sensor after 3 minutes of rest with the cooling tail taken off by its slope; no
hardware the app does not have. Settings carry the region, the switch, the set point, the schedule with the window's
clock offset, the typed reading and the learned idle offset; state.heat carries the phase, the duty, the watts and
the one line; POST /api/heat and /api/region. One HEAT line in the log every 30 s for the gate reader. 8 tests with
a model room: a typed reading and the card sensor alone each hold within a degree for four hours.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
(cherry picked from commit 85c619f578)
38486b01f8