pipecat/changelog/4091.changed.md

• GradiumTTSService now sends a per-context setup message with client_req_id before the first text message for each TTS context, following Gradium's multiplexing protocol. Previously, a single setup message was sent at connection time without a client_req_id, which prevented Gradium from associating requests with their sessions when using close_ws_on_eos=False.