feat(IAuthClient): IsConnected, ConnectionError und ConnectionError Eigenschaften hinzugefügt.

- Umwandlung der Eigenschaft IsConnectionFailed in eine Erweiterungsmethode.

DigitalData.Auth.Abstractions/ClientExtensions.cs

@@ -0,0 +1,6 @@
+namespace DigitalData.Auth.Abstractions;
+
+public static class ClientExtensions
+{
+    public static bool IsConnectionFailed(this IAuthClient client) => client.ConnectionError is not null;
+}

DigitalData.Auth.Abstractions/IAuthClient.cs

@@ -2,6 +2,12 @@
 
 public interface IAuthClient : IAuthClientHandler
 {
+    bool IsConnected { get; }
+
+    Exception? ConnectionError { get; }
+
+    bool IsConnectionFailed => ConnectionError is not null;
+
     Task StartAsync();
 
     Task<bool> TryStartAsync();

DigitalData.Auth.Client/AuthClient.cs

@@ -47,8 +47,6 @@ public class AuthClient : IAuthClient
 
     public Exception? ConnectionError { get; private set; }
 
-    public bool IsConnectionFailed => ConnectionError is not null;
-
     public async Task StartAsync() => await _lazyInitiator.Value;
 
     public async Task<bool> TryStartAsync()