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>

qt6-after/qt6-migrated-legatus/Lts/Services/CentralEffectSimulation/handler_participant.cpp

@@ -11,7 +11,7 @@
 #include <ParticipantManagement/ppm_common.h>
 
 #include <LtsCoordTrans/lts_coord_trans.h>
-#include <QtCore/QLineF>
+#include <QLineF>
 
 namespace CentralEffectSimulation
 {
@@ -118,11 +118,16 @@ void HandlerParticipant::onParticipantPositionChanged(const ParticipantManagemen
   }
   else
   {
+    ParticipantManagement::TypeClass typeClass = typeClassFromTypeId(data.participantTypeId());
+    if (typeClass == ParticipantManagement::TypeClass_def::SupportEntity
+        || typeClass == ParticipantManagement::TypeClass_def::SupportUnit
+        || typeClass == ParticipantManagement::TypeClass_def::Unit
+        || typeClass == ParticipantManagement::TypeClass_def::Unknown)
+      return;
+
     // [GUEZE-3102] Aufgesessene Teilnehmer bekommen den Schaden vom Fahrzeug, auf dem sie aufgesessen sind.
-    if ( data.mountedOn().is_set())
-    {
+    if (data.mountedOn().is_set())
       return;
-    }
     int floorId = m_handlerBuildingData->getFloorIdFromRoomId(data.roomId());
     int lastFloorId;
     CesParticipantData partPos(data);