A request to RESUME a reviewed session as a NEW live call, emitted by review mode's
"Start live session" button. The host (chat area) clears its review state and starts a
voice session through the same path the composer's mic uses, passing
LastSessionId so the server chains the new session to the reviewed one
(restoring saved channel states such as the whiteboard via PriorChannelStatesJson).
A request to RESUME a reviewed session as a NEW live call, emitted by review mode's "Start live session" button. The host (chat area) clears its review state and starts a voice session through the same path the composer's mic uses, passing LastSessionId so the server chains the new session to the reviewed one (restoring saved channel states such as the whiteboard via
PriorChannelStatesJson).