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/ProjectDataManagement/Gui/PdmComboBox/pdm_combobox.h

@@ -38,9 +38,9 @@ enum class InternationalMode;
 enum class ABCProtectionMode;
 enum class PersonalProtection;
 enum class ProtectionLevel;
-enum class Language;  // from training_area_telegrams.h
-enum class OperationMode;  // from training_area_telegrams.h
-enum class WphMode;  // from training_area_telegrams.h
+enum class LanguageConfiguration;  // RTI enum in ProjectDataManagement (pdm_enums.hpp); legacy used LanguageConfiguration
+enum class OperationMode;
+enum class WphMode;
 #endif