Qt6 Migration: Merge latest Qt5 devel content and apply migration fixes

- Merged 292 changed files from dlbo snapshot
- Fixed IDL enum collisions (PortType, PdmEventType)
- Fixed Grantlee template for C++11 scoped enums
- Fixed CMake VERSION_GREATER syntax
- Added missing directories (THP, LtsRestClient, etc.)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Lts/Tools/Examples/Plugins/plugins/child_beta/child_beta.cpp

@@ -0,0 +1,36 @@
+#include "child_beta.h"
+#include <QVBoxLayout>
+
+namespace DLBO
+{
+ChildBeta::ChildBeta()
+{
+  m_widget = new QWidget();
+  QVBoxLayout *layout = new QVBoxLayout(m_widget);
+  m_widget->setStyleSheet(QStringLiteral("border: 1px solid green; background-color: #f0fff0; margin: 5px;"));
+
+  QLabel *title = new QLabel(QStringLiteral("Kind-Widget 1"));
+  title->setStyleSheet(QStringLiteral("font-weight: bold; color: green;"));
+
+  m_staticLabel = new QLabel(QStringLiteral("Warte auf Init-Daten..."));
+  m_liveLabel = new QLabel(QStringLiteral("Warte auf Live-Text..."));
+
+  layout->addWidget(title);
+  layout->addWidget(m_staticLabel);
+  layout->addWidget(m_liveLabel);
+}
+
+void ChildBeta::setParentData(const QString &data)
+{
+  if (m_staticLabel)
+    m_staticLabel->setText(QStringLiteral("Init-Wert: %1").arg(data));
+}
+
+void ChildBeta::updateLiveData(const QString &text)
+{
+  if (m_liveLabel)
+  {
+    m_liveLabel->setText(text.isEmpty() ? QStringLiteral("Warte auf Live-Text...") : QStringLiteral("Beta Live: ") + text);
+  }
+}
+}