Add member to project

curl --request POST \
  --url https://api.beyondwords.io/v1/projects/{project_id}/members/add \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <api-key>' \
  --data '
{
  "member_id": 123
}
'

{
  "id": 123,
  "first_name": "<string>",
  "last_name": "<string>",
  "email": "<string>",
  "role": {
    "id": 123,
    "name": "<string>",
    "key": "<string>",
    "permissions": {}
  },
  "email_confirmed": true,
  "marketing_subscribed": true,
  "notifications_billing_enabled": true,
  "avatar_url": "<string>",
  "created": "2023-11-07T05:31:56Z",
  "updated": "2023-11-07T05:31:56Z"
}