- STT services now reconnect safely when settings change: reconnection is deferred until the current user turn ends (i.e., until `UserStoppedSpeakingFrame` is received) rather than interrupting an active speech session. Audio frames received while the reconnect is in progress are buffered and replayed once the new connection is ready. `CartesiaSTTService` and `DeepgramSTTService` both use this new behavior.
