Feature Request: Breakout Rooms with Signed-Token Managed Elevated Access

[smshuja]

Proper breakout room support to LiveKit, with server-authorized control for users who have elevated access. Things like creating rooms, joining them, moving people between rooms, and moderating should be controlled by permissions put into signed tokens (JWTs) that a trusted backend issues.

Breakout rooms are essential for classes, workshops, and conferences. Lots of platforms let organizers manage breakout rooms without handing out full host credentials to every user. LiveKit already handles media and rooms well, but it’s missing a simple, secure breakout-room UX and API that ties into server-side permissioning. Using signed tokens would let the server safely delegate management rights to specific clients while keeping overall control on the backend.