Dependencies injected into a MeetingControlsChannelServer — the platform event source and an
optional deterministic clock. Injected (rather than resolved) so the channel is fully unit-testable
with a fake source and a controllable clock, and so the platform wiring is the driver's concern.
Dependencies injected into a MeetingControlsChannelServer — the platform event source and an optional deterministic clock. Injected (rather than resolved) so the channel is fully unit-testable with a fake source and a controllable clock, and so the platform wiring is the driver's concern.