Track creation/deletion events for server-side environment keys

### Is your feature request related to a problem?

There is no visibility of key creation/deletion events in the audit log currently.

### Describe the solution you'd like.

These events should be added to the audit log so that there is full visibility into which user, when then key was deleted and what environment this was deleted in.

### Describe alternatives you've considered

n/a

### Additional context

_No response_