ERelayIdentityTransitionV1��RelayIdentityTransitionV1�{RelayIdentityTransitionV1 {
version: u8 = 1
oldRelayKey: 32 bytes
newRelayKey: 32 bytes
oldIdentitySequence:u64
newIdentitySequence:u64 // exactly old + 1
validFromEpoch: u32
reasonCode: u8 // generic rotation/compromise/recovery enum
transitionNonce: 32 bytes
oldSignature: 64 bytes
newSignature: 64 bytes
}