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zeekay
ea21a57505
Adds pkg/zaptransport — a thin facade over github.com/luxfi/zap for operator-to-operator pre-commit gossip of SignedReceipts. The package is purely transport: it carries opaque JSON receipt bytes and never runs signature math. Verification stays gated by pkg/profile. Reserved relay-plane ZAP message types (encoded as msgType<<8 in the ZAP flags field, per upstream convention): 0x48 MsgRelayHello (handshake) 0x49 MsgRelayMessageBroadcast (JSON SignedReceipt bytes) 0x4A MsgRelayStatusPing (liveness) Service tag: "_luxd-relay._tcp". pkg/server wires the ZAP listener alongside the HTTP server, exposing /v1/zap/peers for operator introspection. relayd gains --zap-port and RELAYD_ZAP_PORT (default 7710; 0 disables). External-chain RPC (Bitcoin / Ethereum / OP_NET) remains on its native transport — this package does not touch it. 2 end-to-end tests round-trip a real JSON receipt between two ZAP nodes over loopback with NoDiscovery.