Prepare Data History Provider 2.7 integration update

- modularize Citrix and agent integrations and add remote desktop endpoints
- extend ticket overview, ticket links, token validation, and staged relation handling
- update configuration, licensing, project, signing, and publish artifacts

F4SD-Cockpit-ServerCore/DataHistoryConfigM42Wpm.cs

@@ -102,9 +102,12 @@ namespace C4IT.DataHistoryProvider
 
                                     string name = a["QueueName"]?.Value;
                                     string id = a["QueueID"]?.Value;
-                                    Guid guid;
+                                    Guid guid = Guid.Empty;
 
-                                    if (string.IsNullOrWhiteSpace(name) || !Guid.TryParse(id, out guid))
+                                    if (string.IsNullOrWhiteSpace(name))
+                                        return null;
+
+                                    if (!string.IsNullOrWhiteSpace(id) && !Guid.TryParse(id, out guid))
                                         return null;
 
                                     return new cApiM42TicketQueueInfo