nx_room_fec_relay.nx

nx_room_fec_relay.nx -- R1: FEC wired THROUGH the real sovereign relay. Composes the live relay core (nx_room_relay: rr_init/rr_post/rr_find/arena) with the proven frame-FEC wire protocol (nx_room_fec_wire). Each frame is sharded into k data + m parity DATAGRAMS; each shard is posted to the relay under its own (room, peer*16+shard_idx) key; the receiver collects whatever survived and reconstructs the WHOLE frame byte-exact from any k shards. WHY THIS IS THE REAL WIRE-IN (not another sim): it exercises the ACTUAL relay primitives (rr_post stores each shard in the shared arena; rr_find locates survivors) -- the same code nx_vroom_daemon runs live. The honest motivation: the live room speaks HTTP/TCP, which HEAD-OF-LINE STALLS on intercontinental loss exactly like ARQ (TCP retransmits) -- a FEC datagram path delivers the frame with ZERO retransmit. This gate proves the integrated path. SCOPE: proves daemon-side FEC transport end-to-end. The browser-client recovery shim + the vd_stream wire-format change + DEPLOY to live :8446 = the operator-gated last mile. main() is the SELF-VALIDATING GATE. Evidence -> knowledge/status/room_fec_relay.log. license_tier: ORIGINAL