Optionallimits: VoiceAbuseLimitsInteractive channels (by name) the widget may attach this session (from the minted session).
OptionalrelayTool: RelayToolFnLive relay for non-channel tool calls; omitted when no channels are enabled (no OnToolCall wiring).
Whether a voice session is currently active.
Begins a voice session (mints, connects, acquires mic, enforces ceilings).
Ends the active voice session.
Reuses the shipped realtime client stack for the widget's voice modality.