- delete 4 dead pages (~2300 lines): Home, ConfigPlatformPage,
DataDictionaryPage, NotificationsPage (kept the live NotificationPage)
- delete 52 unused shadcn ui components (keep button/card/dialog in use;
re-generate via shadcn CLI when needed)
- delete App.css, SkeletonCard, empty shared/ and features engine dirs
- remove dead theme blocks (midnight-purple / orange-vitality) from index.css
- uninstall ~40 dead deps (echarts, sonner, next-themes, zod,
react-hook-form, unused radix packages, cmdk, vaul, ...)
- fix DEVELOPMENT.md drift: mock layer section rewritten to real API layer,
permission docs now point to menu.ts single source