The operating-point series (flow.predicted.{downstream,atequipment},
power.predicted.atequipment) were only written by calcFlow/calcPower while
operational, or by _updateState on a state transition. A machine that boots
into idle and never runs therefore emitted these keys NEVER — so InfluxDB
carried only the flow envelope (max/min) and dashboard panels querying the
operating point rendered blank, unable to show even the off/0 state.
Seed them to 0 in _init() alongside max/min, so telemetry always carries the
operating point: 0 while idle, real values once the pump runs. Verified end to
end: keys now present in InfluxDB, the Grafana flow panel resolves, and the
real prediction path produces non-zero values (~98 m3/h, ~13 kW) that flow
through getOutput to Port 1.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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