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/Services/AreaEffectSimulation/object_explosion_area.cpp

@@ -178,12 +178,12 @@ Core::FunctionReplyObject ObjectExplosionArea::resumePause(const ExplosionAreaPa
 {
   if (req.resumeExecution)
   {
-    if (req.timeToResume.is_set())
+    if (req.timeToResume.has_value())
       m_data.effectStart = QDateTime::fromMSecsSinceEpoch(req.timeToResume.get());
     else
       m_data.effectStart = partitionTime();
 
-    if (req.remainingDuration.is_set())
+    if (req.remainingDuration.has_value())
       m_data.effectDuration = req.remainingDuration.get();
 
     // req.resumeSeed() currently not used, as it is calculated internaly. maybe in the future