Add status check to log errors and flag ERROR if any p4ds are misconfigured.
Run this check on startup.
Note: I tried shutting down in the face of p4d configuration error - there be dragons down that route. It's very, very tricky to get the rules right for automation workflows, so I'm leaving that be at the moment and just making sure we have logging and a status reporting system. In theory, admins should be using some kind of monitor that says "uh oh error" and then they go check the logs and fix things.