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/Common/LtsScriptTimeline/track_widget.h

@@ -0,0 +1,89 @@
+#pragma once
+
+#include <LtsScriptTimeline/ltsscripttimeline_export.h>
+#include "track_entry_painters.h"
+
+#include <QWidget>
+#include <QMap>
+#include <functional>
+
+
+namespace Ui
+{
+class TrackWidget;
+}
+
+
+namespace LtsScriptTimeline
+{
+class TrackEntry;
+class TrackContentWidget;
+class FilterTrackWidget;
+class FilterBackgroundWidget;
+class ScriptTimeline;
+class Tools;
+
+
+class LTSSCRIPTTIMELINE_EXPORT TrackWidget : public QWidget
+{
+  Q_OBJECT
+
+public:
+  explicit TrackWidget(int baseWidth, bool readonly, Tools *tools, bool filtersAllowed, QWidget *parent = nullptr);
+  ~TrackWidget();
+
+  void setReadonly(bool readonly);
+  void updateMe();
+  void unselectAll();
+  bool isSelected() const;
+  QString trackName() const;
+  bool addTrackEntry(TrackEntry *te, bool selectTrackEntry); // use this instead directly on the TCW to get correct filter handling
+  void setTrackName(const QString &name);
+  void addCorrespondingTrackWidget(TrackContentWidget *pCorrespondingTrackWidget);
+  TrackContentWidget *getTrackContentWidget() const;
+  void setBaseWidth(int width);
+  void setIndicatorTime(int time);
+  void selectEntry(int topicId);
+  //void setAllowedTypes(const QVector<TrackEntryType> &allowedTypes);
+  void setInternalName(const QString &name);
+  QVector<TrackEntry *> getTrackEntriesFiltersAsEntries(bool selectedEntriesOnly = false) const; // filters as entries
+  QVector<TrackEntry *> getTrackEntriesWithFilters(bool selectedEntriesOnly = false) const; // filters inside parent's detail data
+  QVector<TrackEntry *> getTrackEntries(bool selectedEntriesOnly = false) const; // no filters
+  QVector<TrackEntry *> getSelectedFilterEntries() const;
+  const QVector<TrackEntry *> &getSelectedEntries() const;
+  int getParentTopicIdOfFilter(const TrackEntry *te) const;
+  void setScriptTimeline(ScriptTimeline *scriptTimeline);
+  const QVector<FilterTrackWidget *> &filterLines() const { return m_filterLines; }
+
+  void keyPressEvent(QKeyEvent *event) override; // TODO: private..
+
+private:
+  QVector<FilterTrackWidget *> m_filterLines;
+  Ui::TrackWidget *ui;
+  int m_baseWidth;
+  QString m_internalName;
+  bool m_readonly;
+  ScriptTimeline *m_scriptTimeline;
+  Tools *m_tools;
+
+protected:
+  void paintEvent(QPaintEvent *event) override;
+
+private slots:
+  void slotExpand();
+  void slotTrackEntryAdded(TrackEntry *te);
+  void slotTrackEntryDeleted(const int topicId);
+  void slotMainChangesMade();
+  void slotAddFilter();
+
+signals:
+  void signalUnselectAll(); // redirected to ScriptTimeline
+  void signalSelectTrack(); // checkbox un-/selected
+  void signalTrackEntrySelectionChanged(TrackEntry *te); // durchgereicht!
+  void signalChangesMade();
+  void signalEditEntry(const int topicId);
+  void signalTrackEntryDeleted(const int topicId);
+  void signalTrackEntryAdded(TrackEntry *te);
+};
+
+} // namespace LtsScriptTimeline