- Linear-inspired dark theme (app/globals.css), forced dark in layout - Clinical sidebar (components/sidebar-02) with temetro brand - AI chat UI (components/chat): Cursor-style input, UI-only mock replies - Settings page (components/settings): Polar-style tabs/sections, UI only - Route-group app shell: app/(app)/{layout,page,settings} - shadcn (Base UI) + ai-elements component libraries - CLAUDE.md: architecture notes + per-folder commit policy Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>