remove notification spam, add more trace logging for secret key access

MareSynchronos/Services/ServerConfiguration/ServerConfigurationManager.cs

@@ -81,17 +81,25 @@ public class ServerConfigurationManager
         var auth = currentServer.Authentications.FindAll(f => string.Equals(f.CharacterName, charaName, StringComparison.Ordinal) && f.WorldId == worldId);
         if (auth.Count >= 2)
         {
-            _mareMediator.Publish(new NotificationMessage("Multiple Identical Characters detected", "Your Service configuration has multiple characters with the same name and world set up. Please delete the duplicates.",
+            _mareMediator.Publish(new NotificationMessage("Multiple Identical Characters detected", "Your Service configuration has multiple characters with the same name and world set up. Please delete the duplicates in the character configuration.",
                 NotificationType.Error));
+            _logger.LogTrace("GetSecretKey accessed, returning null because multiple ({count}) identical characters.", auth.Count);
+            return null;
+        }
+        if (auth.Count == 0)
+        {
+            _logger.LogTrace("GetSecretKey accessed, returning null because no set up characters for {chara} on {world}", charaName, worldId);
             return null;
         }
-        if (auth.Count == 0) return null;
 
         if (currentServer.SecretKeys.TryGetValue(auth.Single().SecretKeyIdx, out var secretKey))
         {
+            _logger.LogTrace("GetSecretKey accessed, returning {key} ({keyValue}) for {chara} on {world}", secretKey.FriendlyName, string.Join("", secretKey.Key.Take(10)), charaName, worldId);
             return secretKey.Key;
         }
 
+        _logger.LogTrace("GetSecretKey accessed, returning null because no fitting key found for {chara} on {world} for idx {idx}.", charaName, worldId, auth.Single().SecretKeyIdx);
+
         return null;
     }