Complete Qt6 migration: full clean build green across groups G1-G12 incl. runtime plugin set

new_docker_build.sh gains Group 12 (212 GUI/Data plugins); fixes LtsUtilsGuiDds visibility (LTO-stripped exports), LtsProjectionWorkstation unity name shadow, 6 unity-off dirs (dup file-scope statics, ddsftc INTERFACE sources) and reconfigures BUILD_FILTERMANAGEMENT/BUILD_PLUGINS_SERVICEMONITOR=ON

qt6-after/qt6-migrated-legatus/Lts/Plugins/Timeline/Gui/EventTimeline/tln_legend.cpp

@@ -97,6 +97,7 @@ QVector<EventType> TimelineLegend::possibleEvents()
 TimelineLegend::TimelineLegend(QWidget *parent)
   : LtsWidgets::LtsDialog(parent, LtsWidgets::ButtonCombination::CloseOnly)
   , m_ui(new Ui::TimelineLegend)
+  , m_logger(getLogger("TimelineLegend"))
 {
   m_ui->setupUi(this);