How to capture transcription events with LiveAvatar + LiveKit for chat logging?

Hi HeyGen team,

I'm building a web application with LiveAvatar and need to log all conversation turns (both user speech and avatar responses) to Supabase for analytics.

My Setup:

LiveAvatar API with LiveKit JS client
WordPress with server-side proxy for session token generation
Successfully creating sessions and connecting to LiveKit rooms
Supabase ready to receive logs

The Issue:
I contacted support and they mentioned using AVATAR_TALKING_MESSAGE and USER_TALKING_MESSAGE events from StreamingEvents, but then clarified those are for the Streaming Avatar SDK (@heygen/streaming-avatar), not LiveAvatar with LiveKit.

My Questions:

What are the correct events to listen for with LiveAvatar + LiveKit to capture:
- User speech text
- Avatar response text
Should I be using LiveKit's native transcription events instead?
Is there sample code or documentation for capturing these events specifically with LiveAvatar?

Any guidance would be really appreciated!

Thanks