Refs #1
- /v1/ping now advertises the node's known peers (peer_id, addr, name)
- Run sweeps static KNOX_PEERS + persisted discovered peers, enqueueing
newly-learned addresses for direct sweeps (membership-only relay; no
observation relay)
- db: ShareablePeers, SwarmPeerAddrs, MergePeer (cursor-preserving
discovery upsert), MaxHCLForNode
- integration test: a node configured with a single seed discovers and
pulls from other swarm members without direct configuration