Creates a communications type

curl --request POST \
  --url https://api.rootly.com/v1/communications/types \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '
{
  "data": {
    "type": "communications_types",
    "attributes": {
      "name": "<string>",
      "color": "<string>",
      "description": "<string>",
      "position": 123
    }
  }
}
'

{
  "data": {
    "id": "834b1f28-047a-415b-b1cf-bd1181c16740",
    "type": "communications_types",
    "attributes": {
      "name": "Incident Notifications",
      "slug": "incident-notifications",
      "description": "Type for incident-related communications",
      "color": "#FF5733",
      "position": 11,
      "created_at": "2025-12-19T13:51:00.281-08:00",
      "updated_at": "2025-12-19T13:51:00.281-08:00",
      "communication_groups": [],
      "communication_templates": []
    }
  }
}