I have odoo 17 running, Its an all in one with a website for clients visit and also has the place where we manage the odoo, payroll, accounting and inventory. I have 2 databases one for test which we use to train new staff and one thats the live production. I would like to have it set up where when one goes to the domain they are taken to the website like a visitor and have a prttal.mydomain.com where when one visits they have the option to select database and log in for administrative tasks. help on how to set this up will be much appreciated.