Refactor Twilio ASR and TTS behavior for better modularity and defaul…

…t handling

- Fix KeyError when calling a bot that has no asr/tts selected
- Remove the `get_twilio_tts_voice` and `get_twilio_asr_language` functions.
- Add `resolve_twilio_asr_language` and `resolve_twilio_tts_voice` functions to handle language and voice determination.
- Refactor `create_voice_call_response` and `resp_say_or_tts_play` to use new resolve functions.
- Update constants for default and supported ASR languages and TTS voices.

daras_ai_v2/twilio_bot.py

@@ -126,7 +126,6 @@ def __init__(
         text: str = None,
         audio_url: str = None,
     ):
-        from routers.twilio_api import get_twilio_tts_voice, get_twilio_asr_language
 
         self.convo = convo
 
@@ -149,11 +148,6 @@ def __init__(
 
         super().__init__()
 
-        self.use_gooey_asr = self.saved_run.state.get(
-            "asr_model"
-        ) or not get_twilio_asr_language(self.bi)
-        self.use_gooey_tts = not get_twilio_tts_voice(self.bi)
-
     def get_input_text(self) -> str | None:
         return self._text