websocket server => jambonz

An tts:tokens message is sent by the application to jambonz to stream text to a speech synthesizer. This requires that a TTS speech vendor that supports streaming is being used for the call. Currrently, as of release 0.9.3 the following vendors are support for TTS streaming:

• Cartesia
• Deepgram
• Elevenlabs

The payload must contain:

• id: a unique identifier within the current tts stream, identifying this request
• tokens: a string of text to be synthesized in streaming fashion

The intent is that as the application receives a stream of tokens from an LLM that is being managed by the application it will send this stream on via successive calls to tts:tokens.

The application will receive a tts:tokens-result message in response to each tts:tokens message it sends.