Create attachment

curl --request POST \
  --url https://api.light.inc/v1/attachments \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json;charset=UTF-8' \
  --data '{
  "resourceId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "documentKey": "<string>",
  "fileName": "<string>",
  "contentType": "<string>",
  "metadata": {
    "type": "AR"
  }
}'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "companyId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "resourceId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "documentKey": "<string>",
  "fileName": "<string>",
  "contentType": "<string>",
  "createdBy": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "metadata": {
    "type": "AR"
  },
  "createdAt": "2023-11-07T05:31:56Z",
  "updatedAt": "2023-11-07T05:31:56Z"
}