Qt6 Migration: Merge latest Qt5 devel content and apply migration fixes

- Merged 292 changed files from dlbo snapshot
- Fixed IDL enum collisions (PortType, PdmEventType)
- Fixed Grantlee template for C++11 scoped enums
- Fixed CMake VERSION_GREATER syntax
- Added missing directories (THP, LtsRestClient, etc.)

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

Lts/Tools/Examples/Plugins/app/CMakeLists.txt

@@ -0,0 +1,6 @@
+add_executable(DlboTestPluginApp main.cpp)
+target_link_libraries(DlboTestPluginApp PRIVATE Qt5::Widgets)
+
+# Kopiert die Interfaces virtuell via Include-Pfad (keine statische Link-Abhängigkeit zu .cpp Dateien)
+target_include_directories(DlboTestPluginApp PRIVATE ${CMAKE_SOURCE_DIR}/interfaces)
+