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/parent_alpha/parent_alpha.cpp

@@ -0,0 +1,31 @@
+#include "parent_alpha.h"
+#include <QLabel>
+
+namespace DLBO
+{
+ParentAlpha::ParentAlpha()
+{
+  m_widget = new QWidget();
+  m_layout = new QVBoxLayout(m_widget);
+  m_widget->setStyleSheet(QStringLiteral("border: 2px solid blue; padding: 10px; margin: 5px;"));
+
+  QLabel *label = new QLabel(QStringLiteral("Eltern-Widget (AlphaParent)\nBsp.: Tln-Info-Fenster"));
+  label->setStyleSheet(QStringLiteral("font-weight: bold; color: blue; font-size: 14px;"));
+  m_layout->addWidget(label);
+
+  m_inputField = new QLineEdit();
+  m_inputField->setPlaceholderText(QStringLiteral("Live-Eingabe für alle Kinder..."));
+  m_layout->addWidget(m_inputField);
+
+  connect(m_inputField, &QLineEdit::textChanged, this, &ParentAlpha::dataChangedLive);
+}
+
+void ParentAlpha::addChildWidget(QWidget *childWidget)
+{
+  if (childWidget)
+  {
+    m_layout->addWidget(childWidget);
+  }
+}
+
+}