Qt6 Migration: Complete migration with DDS/RTI support and build validation

Major Changes:
- Merged latest Qt5 devel content from dlbo (292 files changed, 7 new dirs)
- Consolidated forward-declarations and include folders
- Removed unneeded modules per Niklas' repo check list

Build System Fixes:
- Fixed CMake VERSION_GREATER syntax in ParticipantManagement/CMakeLists.txt
- Added VLC packages (libvlc-dev, vlc-plugin-base) to docker_build.sh
- Added PostgreSQL dev packages (libpq-dev, postgresql-server-dev-all) to Dockerfile
- Fixed locale warnings (ANSI_X3.4-1968 → C.UTF-8)
- Fixed ArcGIS SDK path warnings when BUILD_ARCGIS=OFF

Code Generation Fixes:
- Fixed IDL enum collisions (PortType→CorePortType/DdsutPortType, PdmEventType)
- Fixed Grantlee template svc_translation.cpp.grantlee:
  - Changed {{ idl_enum.name }}_def:: to {{ idl_enum.name }}::
  - Fixed .underlying() calls for C++11 scoped enums (enum class)
- Removed generated files from repo (moc_*, *_dtc.h, *_ftc.h)

Validation:
- BUILD_RTI=ON: SUCCESS
- BUILD_RTI=OFF: SUCCESS
- C++17 standard maintained for RTI 7.7 compatibility
- Ubuntu 26.04 Docker environment verified

Remaining Warnings (expected):
- BgViewer, KDChart, KDReports, Poppler-Qt6 not found (optional features)

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

qt5-before/dlbo/Lts/Tools/DdsView/telegrammodel.h

@@ -0,0 +1,106 @@
+/**
+  * @RDE_HEADER@
+  *
+  * TableModel for dynamic topics
+  *
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  */
+
+#pragma once
+
+#include <QAbstractItemModel>
+#include <QSortFilterProxyModel>
+#include <QVector>
+#include <QDateTime>
+#include <QSharedPointer>
+#include <QStringList>
+
+#include <dds/core/xtypes/DynamicData.hpp>
+
+#include <LtsUtilsCore/data_modification_enum.h>
+#include "logger.h"
+
+class QDomDocument;
+class QDomElement;
+class TelegramSortModel;
+
+class TelegramModel final : public QAbstractTableModel
+{
+  Q_OBJECT
+public:
+  explicit TelegramModel(QObject *parent = nullptr);
+
+  enum Column
+  {
+    DateTime  = 0,
+    TopicName = 1,
+    TypeName  = 2,
+    Info      = 3,
+    Maximum   = Info
+  };
+
+  struct TelegramData
+  {
+    QDateTime                       dateTime;
+    std::string                     typeName;
+    QString                         topicName;
+    QString                         info;
+    DataModification                modType;
+    QSharedPointer<dds::core::xtypes::DynamicData> legatusData;
+
+    void toXml(QDomDocument &doc, QDomElement &de) const;
+    bool fromXml(QDomElement &de);
+  };
+
+  int rowCount(const QModelIndex &parent) const override;
+  int columnCount(const QModelIndex &parent) const override;
+  QVariant data(const QModelIndex &index, int role) const override;
+  QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
+  TelegramData telegramData(const QModelIndex &index) const;
+
+  void processData(const dds::core::xtypes::DynamicData &data, const QString &topicName, DataModification modType);
+
+  const QString topicName(const QModelIndex &index) const;
+  const std::string typeName(const QModelIndex &index) const;
+  const QSharedPointer<dds::core::xtypes::DynamicData> dynamicData(const QModelIndex &index) const;
+  Qt::ItemFlags flags(const QModelIndex &index) const override;
+
+  Qt::DropActions supportedDropActions() const override;
+  bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override;
+  QMimeData *mimeData(const QModelIndexList &indexes) const override;
+  QStringList mimeTypes() const override;
+
+  void onTypeCodeInfosChanged();
+
+  bool deleteRow(const QModelIndex &index);
+
+public slots:
+  void onClear();
+
+signals:
+  void send(const QSharedPointer<dds::core::xtypes::DynamicData> &data, const QString &topicName);
+
+private:
+  QString getString(const dds::core::xtypes::DynamicData &data, uint32_t member_index) const;
+  QString getInfo(const dds::core::xtypes::DynamicData &data, const QString &topicName) const;
+  QMap<QString, QString> getInfoInternal(const dds::core::xtypes::DynamicData &data, const QStringList &fields) const;
+
+
+  QVector<TelegramData>       m_data;
+  QMap<QString, QStringList>  m_infoList;
+  NGL::INGLLogger            &m_logger;
+
+  friend class TelegramSortModel;
+};
+
+class TelegramSortModel final : public QSortFilterProxyModel
+{
+  Q_OBJECT
+public:
+  using QSortFilterProxyModel::QSortFilterProxyModel;
+protected:
+  bool lessThan(const QModelIndex &left,
+                const QModelIndex &right) const override;
+};