- config.yml: pwa: yes, navigation: sidebar, offline-message
- home.md: Phase 7 test instructions
- about.md, docs.md: sample pages for offline cache testing
- test_phase.py: all phases point to claude/* branches; EXTRA_FILES for 5 and 7
- version bump to 0.3.9
https://claude.ai/code/session_01UP8Wo2CKPNhvvTkzX48CWF