Add two Fabric options for an exactly-two-radio node:
- fabric.repeat_on_ingress (tx_mode: bridge): a relayed packet is sent
on the other radio first, then back out on the radio that heard it.
- fabric.local_tx_mode: all: locally originated packets (companions,
adverts, room/protocol replies) go out once on every radio, default
radio first.
MeshCore processing (policy, dedupe, path mutation) still runs once per
logical packet; only the physical TX is duplicated, each egress with its
own Packet, serialised through the TX lock and gated independently for
duty cycle and link health. One successful egress is a successful
forward. Multi-ack extras share the egress set.
inject_packet registers its single ACK waiter before the first TX so an
ACK heard mid-fan-out outlives the dispatcher's ACK cache. Fan-out fixes
flood scope and path-hash mode once before copying and metering, so all
radios carry identical bytes and the duty-cycle gates see them.
Packet records gain tx_radio_ids (JSON column + migration); tx_radio_id
remains the primary successful egress. Invalid option combinations are
rejected before hardware is opened. Defaults preserve existing behaviour.
agessaman
f510aedf78