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/EffectShowClient/control_unit_handler.h

@@ -0,0 +1,70 @@
+/**
+  * Controler interface for the DMF vehicle terminal
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  * Created by Florian Schult, NLSE, 2018-06-06
+  */
+
+#pragma once
+
+#include "logger.h"
+#include "handler_vehicle.h"
+#include "esc_helper.h"
+#include <QObject>
+#include <QTimer>
+
+namespace EffectShowClient
+{
+
+
+class ConnectionHandler;
+
+class ControlUnitHandler : public QObject
+{
+  Q_OBJECT
+
+public:
+
+public:
+  explicit ControlUnitHandler(QObject *parent = nullptr);
+  ~ControlUnitHandler();
+
+  bool init();
+
+  // Commands to the controler
+  bool send(const CommandSignal command, const unsigned int roundCount = 0);
+
+signals:
+  // Messages from the control unit to main/vehicle/etc
+  void safetyStatus(const SafetyConfirmation_e &safetyConfirmation);
+  void safetyWarnings(const SafetyStatus &safetyWarning);
+  void vehicleType(const EffectShowManagement::Feature_e &type);
+  void vehicleBattery(double battery);
+  void vehicleRoundCount(int loadedRunds);
+  void vehilceSmokeAmmunition(int ammunition);
+  void vehicleShutDown();
+  void vehicleConnected();
+  void vehicleSafetyRevoked();
+  void vehicleFinshedVolley(int rounds);
+  void vehicleStoppedVolley(int rounds);
+  void vehicleFireUnits(const CardRidges &cardRidge);
+  void vehicleErrorStatus(const CardRidges &cardRidge);
+  void vehicleSmokeCardridgesStatus(const CardRidges &cardRidge);
+  void vehicleSmokeCardridgesFireStatus(const CardRidges &cardRidge);
+
+private slots:
+  void onDataReceived(const QByteArray &ba);
+  void onConnectedToSerialConveter();
+  void onDisconnectedFromSerialConveter();
+
+private:
+  ConnectionHandler *m_connectionHandler;
+  QTimer            *m_timer;
+  EffectShowManagement::Feature_e m_feature;
+  NGL::INGLLogger &m_logger;
+
+
+};
+} // namespace EffectShowClient
+