Security resolver and health checker (#2281)

* Setup health check

* Security health checker cron

* Use resolver throughout codebase

* Use resolver for trade builder

* Add security health checks to schedule

* Handle no provider

* Lint fixes

app/views/shared/_ruler.html.erb

@@ -1,2 +1,2 @@
 <%# locals: (classes: nil) %>
-<hr class="border-divider <%= classes || 'mx-4' %>">
+<hr class="border-divider <%= classes || "mx-4" %>">