Env-gated live evidence test reads History/Retrieval/Transaction/Status
GetInterfaceVersion over gRPC; integers recorded in grpc-interface-versions.md.
Stale not-yet-captured comment fixed; gate XML-doc notes live confirmation.
Claude-Session: https://claude.ai/code/session_012SDSQ3AcaXqPcBtDESBRii
Joseph Doherty