Post authinvite waitlist

curl --request POST \
  --url http://127.0.0.1:3000/api/auth/invite-waitlist \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "list": [
    "jsmith@example.com"
  ]
}
'

[
  {
    "email": "jsmith@example.com",
    "code": "<string>",
    "times": 123
  }
]