We show workspace build start/stop events in the audit log. Currently, the friendly string describing these events has the following format: {user} started workspace build for workspace {target}.

But often, builds are started or stop by auto-on/auto-off. We should update the friendly string to reflect these initiators, and add a filter in the UI such that users can filter out auto-on/auto-off event logs.

We should also make sure this information is included in the 'additional_information' field so that future folks hitting the API can find it.