Feature: Detect problems with Auth gRPC connection during setup

[Dušan Borovčanin]

Is your feature request related to a problem? Please describe.

If the gRPC connection is not established properly, we cannot detect it until we start using it, which is too late; i.e. error Unavailable is not something we want to see because of issues during the connection establishment.

Describe the feature you are requesting, as well as the possible use case(s) for it.

We should be able to detect these types of problems earlier and prevent startup in case of them.

Indicate the importance of this feature to you.

Should-have

Anything else?

No response