get https://kigo-core-server-test.kigodigital.net/api/v1/members/id
This endpoint looks up a member in the rewards network by their Kigo account ID and returns their member ID if found.
The flow handles several cases:
- Member found (200 OK)
- Member not found (404 Not Found)
- Database error (500 Internal Server Error)
Returns a success response with the member ID if found, or an appropriate error response.