heardOnCurrentLora

True when the radio has heard this node over RF on the LoRa configuration it is using now (NodeInfo.heard_on_current_lora). The radio derives this from the slot each node was heard on rather than clearing it on a config change, so returning to a configuration restores the previous answers. Defaults true so nodes stored before this column existed, and nodes from firmware that does not report it, are never shown as unheard.