Phase 1: Foundation — backend auth, frontend shell, Docker setup

Backend (FastAPI):
- App factory with async SQLAlchemy 2.0 + PostgreSQL
- Alembic migration for users and sessions tables
- JWT auth (access + refresh tokens, bcrypt passwords)
- Auth endpoints: register, login, refresh, logout, me
- Admin seed script, role-based access deps

Frontend (React + TypeScript):
- Vite + Tailwind CSS + shadcn/ui theme (health-oriented palette)
- i18n with English and Russian translations
- Zustand auth/UI stores with localStorage persistence
- Axios client with automatic token refresh on 401
- Login/register pages, protected routing
- App layout: collapsible sidebar, header with theme/language toggles
- Dashboard with placeholder stats

Infrastructure:
- Docker Compose (postgres, backend, frontend, nginx)
- Nginx reverse proxy with WebSocket support
- Dev override with hot reload

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/package.json

@@ -0,0 +1,38 @@
+{
+  "name": "ai-assistant-frontend",
+  "private": true,
+  "version": "0.1.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "react": "^18.3.1",
+    "react-dom": "^18.3.1",
+    "react-router-dom": "^6.28.0",
+    "axios": "^1.7.0",
+    "zustand": "^5.0.0",
+    "@tanstack/react-query": "^5.60.0",
+    "i18next": "^24.0.0",
+    "react-i18next": "^15.1.0",
+    "i18next-http-backend": "^3.0.0",
+    "i18next-browser-languagedetector": "^8.0.0",
+    "lucide-react": "^0.460.0",
+    "clsx": "^2.1.0",
+    "tailwind-merge": "^2.6.0",
+    "class-variance-authority": "^0.7.1",
+    "sonner": "^1.7.0"
+  },
+  "devDependencies": {
+    "vite": "^6.0.0",
+    "@vitejs/plugin-react": "^4.3.0",
+    "typescript": "^5.6.0",
+    "@types/react": "^18.3.0",
+    "@types/react-dom": "^18.3.0",
+    "tailwindcss": "^3.4.0",
+    "postcss": "^8.4.0",
+    "autoprefixer": "^10.4.0"
+  }
+}