Configure auth0 callback URI

[Nerdsav]

1. how to configure correctly auth0 authorization in the UI

2. when authorizing auth0, what callback URI should be?

3. what exactly to register for the datatools-server in server.yml in the client_assets_url, public_url parameters, given that our datatools-server is running on localhost: 4000 and datatools-ui is available at https://data-tools.xxx.com / (data-tools.xxx.com-> proxy_pass to localhost: 9967)

4. when configuring auth0 authorization and successfully passing it through the auth0.com service, we see that after userinfo, the auth0 service immediately performs logout - what is wrongly configured?