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>

.gitlab-ci.yml

@@ -22,7 +22,7 @@ variables:
   BUILD_IMAGE: 'asset-repository.sf.defence-elec.de/docker-rme/livesim/guez'
   CHECKOUT_IMAGE: 'asset-repository.sf.defence-elec.de/docker-local/docker/docker:git'
   ARTIFACTORY: 'http://asset-repository.sf.defence-elec.de:80/artifactory'
-  ARTIFACTORY_PATH: 'generic-rme/livesim/guez/master'
+  ARTIFACTORY_PATH: 'generic-rme/livesim/guez/dlbo'
   RUNNER_TAG: ''
 
 stages:
@@ -77,7 +77,7 @@ build:
   variables:
     BUILD_VERSION: $VERSION
     VERSION_DATE: $CI_COMMIT_TIMESTAMP
-    PROJECT_BASE_DIR: /builds/projects-domain-live/guez/legatus
+    PROJECT_BASE_DIR: /builds/projects-domain-live/guez/dlbo/legatus
     EMERGE_VERBOSE: 1 # Verbosity level 0:warning 1:info 2:debug
   script:
     - export BUILD_NUMBER=$(date +%Y%m%d%H)