Send a private note

curl --request POST \
  --url https://api.siit.io/v1/requests/{request_uid}/notes \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "body_text": "<string>",
  "sent_by": "<string>",
  "attachments": [
    "<string>"
  ]
}
'

{
  "result": {
    "uid": "<string>",
    "attachments": [
      {
        "filename": "<string>",
        "url": "<string>"
      }
    ],
    "body_text": "<string>",
    "created_at": "2023-11-07T05:31:56Z",
    "sender_type": "user",
    "sent_by": "<string>",
    "sent_by_uid": "<string>",
    "submitted_from": "public_api"
  }
}