Adds initial intermediate qt6 porting state

qt6-after/qt6-migrated-legatus/Lts/Common/LtsWebSocket/client_message.cpp

@@ -0,0 +1,38 @@
+
+
+#include "client_message.h"
+
+#include "json_keys.h"
+
+#include <QJsonDocument>
+
+namespace LtsWebSocket
+{
+
+
+
+
+InvalidMessage::InvalidMessage(ReplyHandler *client, const QString &uuid, const QString &errorText)
+  : AbstractClientMessage(client, QString(), 1, uuid) 
+  , m_errorText(errorText)
+{}
+
+void InvalidMessage::process()
+{
+  ErrorMessage::ErrorData errorData;
+
+  errorData.errorClass    = 1; 
+  errorData.errorMessage  = m_errorText;
+  errorData.uuid          = m_uuid;
+
+  m_client->addReply(new ErrorMessage(errorData));
+}
+
+bool InvalidMessage::hasValidData() const
+{
+  
+  return true;
+}
+
+
+}