Import Twilio phone number

curl --request POST \
  --url https://api.vatel.ai/v1/twilio/numbers \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "phone_number": "<string>",
  "account_sid": "<string>",
  "auth_token": "<string>",
  "label": "<string>"
}
'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "phone_number": "<string>",
  "phone_sid": "<string>",
  "label": "<string>",
  "account_sid": "<string>",
  "created_at": "<string>",
  "updated_at": "<string>"
}