curl -X GET 'https://app.memorylake.ai/openapi/memorylake/admin/v1/invitations' \
  -H 'Authorization: Bearer sk_xxxxxx'

{
  "success": true,
  "message": "Operation completed successfully",
  "data": {
    "items": [
      {
        "created_at": 1760000000,
        "email": "alice@example.com",
        "expires_at": 1760000000,
        "id": "c079f4f4e529b9d687b3cce00eeb9644",
        "role": "tenant_member",
        "status": "pending",
        "accepted_at": 1760000000,
        "accepted_principal_id": "5a4863beca31b3b37f780badf1652511",
        "last_invited_at": 1760000000
      }
    ],
    "continuation_token": "eyJvZmZzZXQiOjIwfQ",
    "total": 1
  }
}