Create Session

curl --request POST \
  --url https://api.avaturn.live/api/v1/sessions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "avatar_id": "jane_20240829",
  "conversation_engine": {
    "type": "text-echo",
    "tts": {
      "engine": "elevenlabs",
      "voice_id": "<voice-id-here>"
    }
  }
}'

{
  "session_id": "<string>",
  "token": "<string>"
}