examples/voice_agent.py runs in console mode or joins LiveKit rooms. It
scopes memory from dispatch metadata, SUPERMEMORY_CONTAINER_TAG, or the
participant, preloads the caller's profile, and greets returning callers
by name. Tested on LiveKit Cloud: a second call greeted the caller by name
and used a fact from the first call.
The example is not included in the wheel or sdist.
