More aggressive service health-validation on startup

[AndrewX192]

There are various bugs that allow the services to be populated without rules, scenes, etc. This can happen as a result of a gradle or other major dependency update. Unfortunately this can result in services starting without any rules/scenes which leads them to a "healthy" but realistically useless state.

Services that lack the needed information to run should either mark themselves as unhealthy or exit with an error code.