Qt6 Migration: BUILD_RTI guards und CMake fixes

- BUILD_RTI conditional compilation für RTI Connext DDS dependencies
- Namespace fixes in core_dtc.h (Core:: → DDS::Core::)
- CMakeLists.txt: BUILD_RTI option und conditional dependencies
- Handler minelayer: namespace closing mit BUILD_RTI guard
- Build erfolgreich mit BUILD_RTI=OFF validiert

Signed-off-by: Torsten Wierschin <torsten.wierschin@life-maps.com>

qt6-after/qt6-migrated-legatus/include/GuezNasat/gna_dtc.h

@@ -7,7 +7,7 @@
 #include "gna_nasat_aircraft_participant.h"
 #include <ParticipantManagement/ppm_enums.hpp>
 #include <ParticipantManagement/ppm.hpp>
-#include <LtsUtilsCore/data_modification_enum.h>
+#include <LtsUtils/LtsUtilsCore/data_modification_enum.h>
 
 #include <QObject>
 #include <QList>
@@ -38,7 +38,7 @@ public:
   ~Dtc() override = default;
   
   // NasatAircraftParticipant-Liste abrufen (Callback-basiert)
-  void nasatAircraftParticipants(const std::function<void(const NasatAircraftParticipant&)>& callback) const {
+  void forEachNasatAircraftParticipant(const std::function<void(const NasatAircraftParticipant&)>& callback) const {
     for (const auto& nap : m_nasatAircraftParticipants) {
       callback(nap);
     }
@@ -54,7 +54,7 @@ public:
   }
   
   // NasatAircraft-Liste abrufen (Callback-basiert)
-  void nasatAircrafts(const std::function<void(const NasatAircraft&)>& callback) const {
+  void forEachNasatAircraft(const std::function<void(const NasatAircraft&)>& callback) const {
     for (const auto& na : m_nasatAircrafts) {
       callback(na);
     }