fixes for capabilities

Pilz.Net/Api/ApiServer.cs

@@ -183,13 +183,9 @@ public class ApiServer : IApiServer
             semaphore.Release();
     }
 
-    public virtual IEnumerable<string> GetEndpoints()
+    public virtual Dictionary<string, string[]> GetEndpoints()
     {
-        return handlers.SelectMany(n => n.Attribute.Methods.Select(m => new
-        {
-            n.Attribute.Route,
-            Method = m,
-        })).OrderBy(n => n.Route).ThenBy(n => n.Method).Select(n => $"{n.Method} {n.Route}");
+        return handlers.GroupBy(n => n.Attribute.Route).ToDictionary(n => n.Key, n => n.SelectMany(n => n.Attribute.Methods).ToArray());
     }
 
     public virtual void RegisterHandler<T>(T instance) where T : class