Fix models in environment service and add more SignalR messaging

Environment/Service/Properties/launchSettings.json

@@ -4,7 +4,8 @@
       "commandName": "Project",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
-      }
+      },
+      "applicationUrl": "http://localhost:5050"
     }
   }
 }