Add CoreSyncData with MarshalSection/UnmarshalSection for portable storage roundtrip. Re-export Levin command IDs for the CryptoNote P2P protocol layer. Co-Authored-By: Charon <charon@lethean.io>
Add NetworkIDMainnet and NetworkIDTestnet 16-byte UUIDs for P2P handshake, ClientVersion constant, and NetworkID field to ChainConfig. Add local replace directive for forge.lthn.ai/core/go-p2p. Co-Authored-By: Charon <charon@lethean.io>
Chain parameters from Lethean C++ source. Base58 address encoding with Keccak-256 checksum. CryptoNote varint. LWMA difficulty skeleton. Co-Authored-By: Charon <charon@lethean.io>
