Complete call and store transcript

curl --request POST \
  --url https://demo.enneo.ai/api/mind/telephony/callCompleted \
  --header 'Content-Type: application/json' \
  --data '{
  "ticketId": 123,
  "channelId": "call_123abc456",
  "transcript": [
    {
      "speaker": "bot",
      "message": "Hello, my name is AI Assistant. How can I help you today?",
      "timestamp": "2024-01-23T14:32:11Z"
    }
  ],
  "duration": 300
}'

{
  "success": true
}