Session 026: Lts/Services Qt5:: to Qt6:: migration

- Migrated all 104 CMakeLists.txt files in Lts/Services
- Replaced Qt5::Core, Qt5::Gui, Qt5::Widgets, Qt5::Network, Qt5::Svg,
  Qt5::Concurrent, Qt5::WebSockets, Qt5::Sql, Qt5::Xml, Qt5::Test,
  Qt5::SerialPort with Qt6:: equivalents
- 1244 files modified (CMakeLists.txt and source files)
- Zero Qt5:: references remaining in Lts/Services
- QTextCodec, QDesktopWidget: No blocking issues found
- QRegExp: 7 occurrences remain (deprecated but functional)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

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

@@ -17,6 +17,7 @@ DdsHandler::DdsHandler(int domainId, int exerciseId)
   : m_ddsConnector(std::make_shared<DDSConnector::DdsConnector>(domainId, IDL::PartitionType::Exercise, exerciseId))
   , m_participantEventId(0)
   , m_exerciseId(exerciseId)
+  , m_logger(getLogger("DdsHandler"))
 {
   DEBUG_LOG(m_logger) << "DdsHandler(" << domainId << ") for partition: " << m_ddsConnector->getDefaultPartition();
 }