document deck summary DFC badges, exporter annotations, and per-face metadata across README/DOCKER/release notes
record completion of all MDFC roadmap follow-ups and add the authoring guide for multi-face CSV entries
wire in optional DFC_PER_FACE_SNAPSHOT env support, exporter regression tests, and diagnostics updates noted in the changelog
- reuse shared hover metadata in Step 5 and keep the preview in-app\n- let hover reasons expand without an embedded scrollbar\n- document the hover polish in CHANGELOG and release notes
- Include/exclude cards feature complete with 300+ card knowledge base and intelligent fuzzy matching
- Enhanced visual validation with warning icons and performance benchmarks (100% pass rate)
- Mobile responsive design with bottom-floating controls, two-column layout, and horizontal scroll prevention
- Dark theme confirmation modal for fuzzy matches with card preview and alternatives
- Dual architecture support for web UI staging system and CLI direct build paths
- All M3 checklist items completed: fuzzy match modal, enhanced algorithm, summary panel, mobile responsive, Playwright tests
