Interface RealtimeChannelScopeInput

Every channel the session could have. Duplicate keys: the first wins.

The folded agent + app configuration (see AccumulateRealtimeChannelsConfig).

Whether the session model's configuration declares Privacy.ZeroDataRetention: true. Only the server knows the model's catalog row, so a local (no-server) scope leaves this unset, which also means no agent requirement applies there (the agent's configuration is the server's too).