Create and authenticate an API Service User for the HiBob (Bob) API using Basic auth

Steps

1. In Bob's admin settings, create a new API Service User (distinct from a real employee account)
2. Create a dedicated Permission Group containing only the permissions the integration needs
3. Add the service user to that permission group
4. Retrieve the service user's ID and token, combine as id:token, and Base64-encode the string
5. Send the encoded string as an HTTP Basic Authorization header on each API request