Node-RED sends ha_all_on and ha_all_off as short NVL pulses (same as
zigbee_swN). Level-sensitive IF switches.ha_all_on caused all outputs to
drop when the pulse cleared (~1s flash then off).
Use R_TRIG plus all_on_latch: ALL ON edge latches room on until ALL OFF
edge. Document behaviour and Node-RED sparse merge in integration guide.
Co-authored-by: Cursor <cursoragent@cursor.com>
