Raw PCM16 little-endian bytes, mono, sample rate = 24000 Hz.
OptionalendOptional wall-clock offset from scenario start, in seconds.
OptionalstartOptional wall-clock offset from scenario start, in seconds.
OptionaltranscriptOptional transcript text (may be populated by streaming STT).
Voice subsystem barrel — public surface for the TS voice port.
PR1 shipped the type contracts. PR3 (this commit) adds the adapter runtime + VAD fallback + executor lifecycle helpers. Real transports land in PR7+ behind this same contract.