Qt6 migration: LtsWidgets API fixes, LtsWebSocket logger init, RTI Docker install

- LtsWidgets: Fixed Qt6 API compatibility issues
  - QWheelEvent::delta() → angleDelta().y()
  - QStyleOption::init() → initFrom()
  - QComboBox activated signal signature change
  - QTextCodec removal (UTF-8 default in Qt6)
  - Missing widget includes added

- LtsWebSocket: Fixed m_logger reference initialization
  - Added NGLLoggerBootstrap includes
  - Proper initialization in constructor initializer lists

- CMake: Added BUILD_LTSWEBSOCKET option for temporary exclusion

- Docker: RTI Connext permanent installation script added
  - ci/install-rti-in-docker.sh for persistent RTI setup
  - Removes need for volume mounting RTI into container

- BUILD options: FilterManagement, RTI, Codification, Grantlee, LtsWebSocket
  can be disabled for partial builds during migration

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

qt6-after/qt6-migrated-legatus/Lts/Common/CodeGen/CMakeLists.txt

@@ -5,7 +5,11 @@
 #
 
 FIND_PACKAGE(RTI)
-FIND_PACKAGE(Grantlee5 REQUIRED COMPONENTS Templates)
+
+# Grantlee5 is Qt5-based and optional for Qt6 migration
+IF(BUILD_GRANTLEE)
+  FIND_PACKAGE(Grantlee5 REQUIRED COMPONENTS Templates)
+ENDIF()
 
 NGL_ADD_LIBRARY2(ALL codegen_base SHARED
   codegen_export.h
@@ -45,7 +49,8 @@ else()
 endif()
 NGL_INSTALL_TARGET(codegen_base)
 
-if (TARGET Grantlee5::Templates)
+# Grantlee5 is Qt5-based and optional for Qt6 migration
+IF(BUILD_GRANTLEE AND TARGET Grantlee5::Templates)
   NGL_ADD_LIBRARY(ALL codegen_grantlee STATIC
     CppTopicGeneratorGrantlee.cpp
     CppTopicGeneratorGrantlee.h
@@ -111,12 +116,8 @@ if (TARGET Grantlee5::Templates)
     PUBLIC
       ${CMAKE_CURRENT_SOURCE_DIR}/../
   )
-else()
-  message(STATUS "Grantlee not found; skipping codegen_grantlee target")
-endif()
 
-# Smoke-test: parse all .grantlee templates in this directory to detect parse/render regressions
-if (TARGET Grantlee5::Templates)
+  # Smoke-test: parse all .grantlee templates in this directory to detect parse/render regressions
   find_package(Qt6 COMPONENTS Core QUIET)
   if (Qt6_FOUND)
     set(QTCORE_TARGET Qt6::Core)
@@ -128,30 +129,32 @@ if (TARGET Grantlee5::Templates)
   add_executable(grantlee_parser_smoke tests/GrantleeParserSmoke.cpp)
   target_link_libraries(grantlee_parser_smoke PRIVATE Grantlee5::Templates ${QTCORE_TARGET})
   add_test(NAME GrantleeParserSmoke COMMAND grantlee_parser_smoke ${CMAKE_CURRENT_SOURCE_DIR})
-endif()
 
-NGL_ADD_EXECUTABLE(ALL ngl_codegen
-  main_grantlee.cpp
-)
-NGL_TARGET_LINK_LIBRARIES(ngl_codegen
-  codegen_grantlee
-  LtsCommandLineParser
-  nglcoreapplication
-  Qt6::Core
-)
+  NGL_ADD_EXECUTABLE(ALL ngl_codegen
+    main_grantlee.cpp
+  )
+  NGL_TARGET_LINK_LIBRARIES(ngl_codegen
+    codegen_grantlee
+    LtsCommandLineParser
+    nglcoreapplication
+    Qt6::Core
+  )
 
-NGL_WRAP_UI(codegen_gui_uics
+  NGL_WRAP_UI(codegen_gui_uics
+      main_grantlee_gui.ui
+  )
+  NGL_ADD_EXECUTABLE(WS AAR SV NO_TRANSLATION codegen_gui
+    ${codegen_gui_uics}
+    main_grantlee_gui.cpp
     main_grantlee_gui.ui
-)
-NGL_ADD_EXECUTABLE(WS AAR SV NO_TRANSLATION codegen_gui
-  ${codegen_gui_uics}
-  main_grantlee_gui.cpp
-  main_grantlee_gui.ui
-)
-NGL_TARGET_LINK_LIBRARIES(codegen_gui
-  codegen_grantlee
-  LtsCommandLineParser
-  nglapplication
-  Qt6::Widgets
-  Grantlee5::Templates
-)
+  )
+  NGL_TARGET_LINK_LIBRARIES(codegen_gui
+    codegen_grantlee
+    LtsCommandLineParser
+    nglapplication
+    Qt6::Widgets
+    Grantlee5::Templates
+  )
+ELSE()
+  message(STATUS "BUILD_GRANTLEE disabled or Grantlee not found; skipping codegen_grantlee, ngl_codegen, and codegen_gui targets")
+ENDIF()