Is your feature request related to a problem?

On "Deploy", the keys are being saved into the vault store, but currently there is no possibility to know from outside that something changed.

Describe the solution you'd like

Hooks, in particular a (post-)Deploy Hook, that sends a json payload to a webservice, could be used to run post-operations like service restarts.

Describe alternatives you've considered

I also considered regularly querying the API for an endpoint if something changed, but there is no such API endpoint.
A poll or watch-option for the phase cli would be nice.

Pulling all secrets every other second via phase export would cause too much unnecessary traffik and spew the logs

Additional context

I'd consider this feature both very useful as well as possibly uncomplicated to implement.
I am currently evaluating Phase (self-hosted) for enterprise - if it suits our needs it'd be very likely we're going to purchase a license.