- Add scripts/analyze_all.sh and scripts/test_all.sh that run flutter
analyze/test across every app and report a summary
- Add scripts/repo_doctor.sh that flags config drift (sdk constraint,
analysis_options, pubspec name, applicationId, gradle version, docs,
tracked generated files) and exits non-zero for use as a pre-commit gate
- Wire these into the Makefile as 'make analyze/test/doctor' and document
them in MAINTENANCE.md
- Bring bmi_calculator and push_notifications gradle wrappers up to the
repo-standard 9.7.0; note push_notifications as a Firebase app requiring
google-services.json
