OptionalDisplayThe participant's display name as Zoom reports it.
OptionalIsWhether this participant is the bridge's own bot (so the driver can exclude it from diarization addressing).
The Zoom participant id (stable for the participant's presence in the meeting).
The participant's meeting role.
One Zoom meeting participant as the seam reports it. Platform-native and minimal — the driver maps this onto
BridgeParticipantInfo/BridgeMeetingParticipant.