Better handling of bootstrap and purge errors

[adutra]

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

The bootstrap and purge commands currently fail hard on common errors such as:

• realm is already bootstrapped
• realm does not exist or is not bootstrapped

It would be a better UX if we could ignore these errors via a command line option.

Also, the logged messages do not clearly specify which realm failed. In case many realms were provided to the command, that's confusing.

Describe the solution you'd like

No more annoying messages.

Describe alternatives you've considered

No response

Additional context

No response