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/Services/InfrastructureManagement/handler_effect_area.h

@@ -0,0 +1,59 @@
+/**
+  * @RDE_HEADER@
+  * ISM Handler Sound Areas
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  * Created by Filip Biedziak, NLE, 2020-08-05
+  */
+
+#pragma once
+
+#include <QHash>
+
+#include "base.h"
+
+
+namespace InfrastructureManagement
+{
+
+class ObjectEffectArea;
+class MainHandler;
+
+
+class HandlerEffectArea final : public Base
+{
+
+public:
+  explicit HandlerEffectArea(MainHandler *mainHandler);
+  ~HandlerEffectArea();
+
+  bool init();
+
+
+  ObjectEffectArea *createEffectAreaForMse(const InfrastructureManagement::MainStructureElement &mse);
+
+  QHash<int, ObjectEffectArea *> getObjectEffectAreaMap()        const { return m_objectEffectAreaMap; }
+  ObjectEffectArea              *getEffectAreaFromId(int32_t id) const { return m_objectEffectAreaMap.value(id, nullptr); }
+
+private:
+  int getSeId(const int mountPointId, const InfrastructureManagement::MainStructureElement &mse) const;
+  /**
+   * @brief assetIdsFromJsonArray reads the EGCU IDs of the sound area from a Json object.
+   * @param jsonObj Json object with an entry 'egcuMountpoints'
+   * @return vector with EGCU IDs
+   */
+  std::vector<int32_t> egcuIdsFromJsonObject(const QJsonObject &jsonObj, const MainStructureElement &mse) const;
+  /**
+   * @brief geometryFromJsonArray reads the vertices of the sound area from a Json object.
+   * @param jsonObj Json object with an entry 'geometry'
+   * @return vector with 2D geo coordinates
+   */
+  std::vector<Core::GeoPosition2D> geometryFromJsonObject(const QJsonObject &jsonObj) const;
+
+private:
+  QHash<int32_t, ObjectEffectArea *> m_objectEffectAreaMap;
+
+};
+
+} // namespace InfrastructureManagement