Adds Qt6 migration verification with RTI 7.7 Pro integration and path fixes

Entire-Checkpoint: 01M6JXRGXRAGAHK9X0TBW6ZWAA

QT6_MIGRATION_VERIFICATION_REPORT.md

@@ -1,9 +1,10 @@
 # Qt6 Migration Verification Report
 
 **Date:** 2026-01-07  
-**Branch:** feature/regression-arcgis300-symbology-migration  
+**Branch:** feature/regression-arcgis300-symbology-migration (includes merged: feature/arcgis300-symbology-migration, feature/lts-viewer-validation-testing-phase, bugfix/fix-warning-issue)  
 **RTI Version:** 7.7 Pro (Commercial License)  
-**Build Configurations:** 10 CPU (error fixing), 1 CPU (final validation)
+**Build Configurations:** 10 CPU (error fixing), 1 CPU (final validation)  
+**Docker Mount Root:** /repo (migrated from /workspace)
 
 ---
 
@@ -80,7 +81,7 @@ This confirms successful RTI 7.7 Pro commercial library integration.
 **Problem:** RTI 7.7 Pro uses different directory structure (resource/app/lib) and architecture (x64Linux4gcc8.5.0)  
 **Fix:**
 - FindRTI.cmake already supports x64Linux4gcc8.5.0 in preferred arch sequence
-- Set DDS_PATH=/workspace/external/rti_connext_dds-7.7.0
+- Set DDS_PATH=${DOCKER_MOUNT_ROOT}/external/rti_connext_dds-7.7.0 (default /repo)
 - Set MIGRATE_PIPELINE_ROOT for license detection
 
 ### 3. IMPORTED_LOCATION Not Set
@@ -115,7 +116,7 @@ This confirms successful RTI 7.7 Pro commercial library integration.
    - Added CMP0111 policy before find_package(RTI)
 
 3. **new_docker_build.sh**
-   - Updated RTI_DIR and DDS_PATH to /workspace/external/rti_connext_dds-7.7.0
+   - Updated RTI_DIR and DDS_PATH to ${DOCKER_MOUNT_ROOT}/external/rti_connext_dds-7.7.0
 
 4. **Lts/DDS/CMakeLists.txt**
    - Reordered subdirectory inclusion (DdsUnitTests before DdsUnitTestsPlaceholder)