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/Viewer/SituationMap/GraphicalObjects/tactical_appearance.h

@@ -0,0 +1,117 @@
+/**
+  * @RDE_HEADER@
+  * TacticalAppearance
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  */
+
+#pragma once
+
+// Own
+#include "abstract_graphical_object.h"
+
+// Esri
+
+
+// Qt
+
+
+// forward:
+
+
+//----------------------------------------------------------------------------
+namespace SituationMap
+{
+
+// forward:
+class MapImpl;
+class GraphicalObjectPictureMarker;
+
+
+/**
+ * @brief The TacticalAppearance class displays sidcs.
+ * To do so, the number of coordinate lead to use
+ * - the GraphicalObjectPictureMarker (exactly one coordinate)
+ * or
+ * - the Message (more than one coordinate)
+ *
+ * Use cases:
+ * - Participant: sidc with #coords == 1, TacticalAppearance should get exactly one coordinate.
+ *   (GraphicalObjectPictureMarker on ESRI::GraphicsLayer is used)
+ * - Tactical display of a Building: sidc #coords >= 2, TacticalAppearance should get list of positions.
+ *   (Message on ESRI::MessageGroupLayer is used)
+ * - (Tactical) PreviewIcon of a Building: sidc #coords == 1, TacticalAppearance should get exactly one coordinate.
+ *   (GraphicalObjectPictureMarker on ESRI::GraphicsLayer is used)
+ * - Tactical symbols of plan editor
+ *
+ * In case of GraphicalObjectPictureMarker the image creation is done by AdvancedSymbology::SymbolDictionary::symbolImageBySidcExtended().
+ */
+class SITUATIONMAP_EXPORT TacticalAppearance : public AbstractGraphicalObject
+{
+
+  using BaseClass = AbstractGraphicalObject;
+
+public:
+
+  /**
+   * @brief TacticalAppearance
+   * @param mapImpl map to be used.
+   * @param logicalLayerName logical layer name to be used.
+   * @param debugInfo debugInfo to be used
+   * @param uniqueMapId uniqueMapId to be used. (Optional to fulfill rubberband requirements)
+   */
+  TacticalAppearance(MapImpl       *mapImpl,
+                     const QString &logicalLayerName,
+                     const QString &debugInfo,
+                     const UniqueMapId &uniqueMapId = INVALID_MAP_ID);
+
+  TacticalAppearance(const TacticalAppearance &other)     = delete;
+  TacticalAppearance &operator=(TacticalAppearance &other) = delete;
+
+  virtual ~TacticalAppearance();
+
+
+  SymbolData symbol() const;
+  void setSymbol(const SymbolData &symbol);
+
+  QString uniqueDesignation() const;
+  void setUniqueDesignation(const QString &uniqueDesignation);
+
+
+  SymbolImage symbolImage() const;
+
+  Esri::ArcGISRuntime::Geometry getGraphicGeometry() const override;
+
+protected:
+  // Internal/Admin
+  virtual bool create() override;
+  virtual void createPictureMarker();
+  virtual void removePictureMarker();
+
+  void removeGraphicFromGraphicOverlayTactical();
+
+  bool changed() override;
+  void resetChanged() override;
+
+
+  bool updateViewImpl() override;
+
+  bool useDictionaryRenderMode(const AdvancedSymbology::GeometryType &geomType) const;
+
+  // logical
+
+private:
+  LOGGER_T m_logger;      ///< Interface of the Logging-Facility
+
+  class Private;
+  /**
+      * The private d-pointer to not break BC when changing internals of this class
+     */
+  Private *d = nullptr;
+
+
+};
+
+} // namespace SituationMap
+