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

In my case part of accounts managed by external system, which may dynamically update htpasswd files.
That works well with the Nginx, but not so well with Zot as it do not reload the file.

That can be done by accepting reload signal (like HUP), or by Inotify.
In case of HUP i'd prefer the node also reload TLS certs, so things like acme-redirect don't need to do a full restart.
But cert rotation is a much less frequent and can be configured. While temporary accounts - cant.

Describe the solution you'd like

Watch for Inotify events on Linux and reload on close event.

Describe alternatives you've considered

No response

Additional context

No response