feat: frontend UI — chat, knowledge base, design system#11
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React 19 + Vite + TypeScript + Tailwind v4 frontend with: - Shell layout with sidebar navigation and health status indicator - Chat screen with markdown rendering, source citations, suggestion blocks, loading states, and session management - Knowledge Base screen with document grid and drag-and-drop upload modal - Toast notification system - Vite proxy to backend API (/api → localhost:8000) - "Nocturnal Architect" design system (deep dark, tonal hierarchy, no-line rule, ambient glow) Also includes design system reference files (DESIGN.md, code.html, screen.png) and UI generation prompts used during development. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
/apito backend at:8000Screens
/) — primary interface, auto-resize input, loading dots, suggestion chips/knowledge) — document cards with indexed status, upload modal with drag-and-dropHow to run
Test plan
npm run build— compiles without errorstsc --noEmit— no type errors🤖 Generated with Claude Code