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.h

@@ -0,0 +1,33 @@
+#pragma once
+
+#include "../../interfaces/child_interface.h"
+#include <QLabel>
+#include <QObject>
+
+namespace DLBO
+{
+class ChildBeta
+    : public QObject
+    , public ChildInterface
+{
+  Q_OBJECT
+  Q_PLUGIN_METADATA(IID "gui:3:ChildInterface")
+  Q_INTERFACES(ChildInterface)
+
+  public:
+  ChildBeta();
+  QString childName() const override { return QStringLiteral("BetaChild"); }
+  QString targetParentName() const override { return QStringLiteral("AlphaParent"); }
+  QWidget *widget() override { return m_widget; }
+
+  void setParentData(const QString &data) override;
+
+  public slots:
+  void updateLiveData(const QString &text) override;
+
+  private:
+  QWidget *m_widget;
+  QLabel *m_staticLabel;
+  QLabel *m_liveLabel;
+};
+}