swaits
4508f317be
Replace manually configured peer connections with a passphrase-based gossip swarm. Peers sharing the same passphrase automatically discover each other via mainline DHT and join an iroh-gossip topic. Key changes: - Add gossip.rs: iroh-gossip swarm with DHT bootstrap, heartbeat, and graceful shutdown that publishes neighbor list - Add setup.rs: interactive config wizard replacing generate-config - Add rate_limit.rs: token-bucket TX rate limiter derived from LoRa air time - Remove network.rs: old direct P2P connection management - Config: remove [[peers]] section, add passphrase to [bridge], update radio defaults to MeshCore US/Canada recommended values - Packet: rename Envelope to GossipFrame, simplify wire format (drop version byte and seq number) - Router: unify dedup into single content-hash cache, add rate limiting - Identity: use ephemeral keypair per launch instead of persistent secret key - Radio: improve config negotiation (GetConfig-first strategy), add device info tracking - TUI: complete redesign with network/swarm panel, sparkline activity charts, color-coded RSSI/SNR, and shutdown overlay