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/RecordReplay/aes_record_replay_plugin_custom.cpp

@@ -375,7 +375,7 @@ void RecordReplayPluginCustom::removeOld(QMultiMap<long long, T> &map, qint64 de
         continue;
       }
       // keep planned
-      if (!inner.effectStart.is_set())
+      if (!inner.effectStart.has_value())
         continue;
       // Remove to old ones
       if (inner.effectStart.get()+inner.effectDuration < desiredTime - 210*1000 )