Add faulted svc config info in challenge server

Author: webprofusion-chrisc

src/Certify.CLI/Program.cs

@@ -218,6 +218,11 @@ private static async Task<int> StartHttpChallengeServer(string[] args)
             var challengeServer = new Core.Management.Challenges.HttpChallengeServer();
             var config = SharedUtils.ServiceConfigManager.GetAppServiceConfig();
 
+            if (config.ConfigStatus == Shared.ConfigStatus.DefaultFailed)
+            {
+                System.Console.WriteLine($"Error: faulted load service config: {config.ServiceFaultMsg}");
+            }
+
             if (!challengeServer.Start(config, controlKey: keys[0], checkKey: keys[1]))
             {
                 // failed to start http challenge server

src/Certify.Shared/Utils/HttpChallengeServer.cs

@@ -146,7 +146,7 @@ public bool Start(ServiceConfig serverConfig, string controlKey = null, string c
 
                     Log($"Http Challenge Server Started: {uriPrefix}", true);
                     Log($"Control Key: {_controlKey}: Check Key: {_checkKey}");
-                    Log($"Using API: {_baseUri}");
+                    Log($"Using Internal API: {_baseUri}");
 
                     _ = Task.Run(ServerTask);