The service's url, the address the bot is given. An agent that reaches the server by another address, such as one inside the host's own network, connects there.
The room's name: the prefix, then the run id.
The identity the bot joins as.
The identity the listening agent joins as.
The bot's token: it may publish and may not subscribe.
The agent's token: it may subscribe and may not publish. The manager does not hand it on; an agent that connects later takes one from MeetingRoom.agentToken.
A run's room as MeetingRoom.create made it. The two tokens are secrets: the manager keeps neither on the run's record.