Migration infrastructure updates for Qt6/RTI 7.7

- Updated MIGRATION_STATUS.md with current build status and blockers
- Updated combined-migration-compact.prompt.md with latest instructions
- Updated Dockerfile for migration pipeline with RTI 7.7 support
- Updated build scripts for Docker-based migration workflow

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Entire-Checkpoint: 01M1BQ6VBZ20E1WJ29NYGT8EWJ

app/Dockerfile

@@ -63,7 +63,7 @@ RUN python3 -m venv /opt/venv \
     && /opt/venv/bin/pip install --upgrade pip setuptools wheel \
     && /opt/venv/bin/pip install -r /app/requirements.txt aqtinstall \
     && mkdir -p "${QT_BASE_DIR}" \
-    && /opt/venv/bin/python -m aqt install-qt linux desktop "${QT_VERSION}" "${QT_ARCH}" -m qtmultimedia qtserialport qtimageformats qtwebsockets qtwebengine qtpdf qtwebview qt5compat qtwebchannel qtpositioning qtlocation --outputdir "${QT_BASE_DIR}" \
+    && /opt/venv/bin/python -m aqt install-qt linux desktop "${QT_VERSION}" "${QT_ARCH}" -m qtmultimedia qtserialport qtimageformats qtwebsockets qtwebengine qtpdf qtwebview qt5compat qtwebchannel qtpositioning qtlocation qtsensors --outputdir "${QT_BASE_DIR}" \
     && test -f "${QT_ROOT}/lib/cmake/Qt6/Qt6Config.cmake"
 
 # Build and install Log4Qt via script in /app (keeps Dockerfile small)