Migrate a bunch of stuff around to prep for worker command (#2)

Right now it's essentially a copy; it needs some updating, integration
into dev, and so on.

internal/cmd/commands/dev/dev.go

@@ -138,15 +138,15 @@ func (c *Command) Run(args []string) int {
 		return 1
 	}
 
-	if memProfilerEnabled {
-		c.startMemProfiler()
-	}
-
 	if err := c.SetupLogging(c.flagLogLevel, c.flagLogFormat, "", ""); err != nil {
 		c.UI.Error(err.Error())
 		return 1
 	}
 
+	if memProfilerEnabled {
+		base.StartMemProfiler(c.Logger)
+	}
+
 	if err := c.SetupMetrics(c.UI, devControllerConfig.Telemetry); err != nil {
 		c.UI.Error(err.Error())
 		return 1