Add plane-sync.js one-way (Plane -> TODO.md) synchronization for the
MITHOME project. Config reads from .mcp.json with .env override. CLI:
--list, --dry-run, --yes, --project, --verbose, --help. Interactive
discrepancy resolution (status mismatches, orphans, new issues), backup
before write, rate limiting. Pure functions covered by node:test unit
tests. Includes PLANE-SYNC-GUIDE.md and TODO.md changelog entry.
- Add comprehensive design system with CSS variables, animations, and utility classes
- Implement dark mode with ThemeProvider (system preference + manual toggle)
- Create JSON-based content management system in src/content/
- Update all pages to use structured JSON content
- Add ThemeProvider component with theme toggle button
- Update Header with glass effect and animated mobile menu
- Update Footer with dark mode support
- Update documentation (README.md, CLAUDE.md, knowledge.md, proto/README.md)
- Sync with Linear (ZEE-29 completed)