Initial project setup: monorepo structure with frontend and backend

- Set up pnpm workspace with frontend (React + Vite) and backend (Express + Prisma)
- Configure TypeScript, ESLint, and Prettier
- Add Prisma schema for database models (User, Course, Lesson, Progress, etc.)
- Create basic frontend structure with Tailwind CSS and shadcn/ui
- Add environment configuration files
- Update README with project overview and setup instructions
- Complete Phase 0: Project initialization

packages/frontend/package.json

@@ -0,0 +1,50 @@
+{
+  "name": "frontend",
+  "version": "1.0.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc && vite build",
+    "preview": "vite preview",
+    "lint": "eslint . --ext ts,tsx --report-unused-disable-directives --max-warnings 0",
+    "type-check": "tsc --noEmit"
+  },
+  "dependencies": {
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-router-dom": "^6.21.1",
+    "zustand": "^4.4.7",
+    "axios": "^1.6.5",
+    "clsx": "^2.1.0",
+    "tailwind-merge": "^2.2.0",
+    "class-variance-authority": "^0.7.0",
+    "lucide-react": "^0.303.0",
+    "@radix-ui/react-slot": "^1.0.2",
+    "@radix-ui/react-dialog": "^1.0.5",
+    "@radix-ui/react-dropdown-menu": "^2.0.6",
+    "@radix-ui/react-select": "^2.0.0",
+    "@radix-ui/react-tabs": "^1.0.4",
+    "@radix-ui/react-label": "^2.0.2",
+    "plyr-react": "^5.3.0",
+    "@dnd-kit/core": "^6.1.0",
+    "@dnd-kit/sortable": "^8.0.0",
+    "zod": "^3.22.4"
+  },
+  "devDependencies": {
+    "@types/react": "^18.2.48",
+    "@types/react-dom": "^18.2.18",
+    "@typescript-eslint/eslint-plugin": "^6.19.0",
+    "@typescript-eslint/parser": "^6.19.0",
+    "@vitejs/plugin-react": "^4.2.1",
+    "autoprefixer": "^10.4.16",
+    "eslint": "^8.56.0",
+    "eslint-plugin-react-hooks": "^4.6.0",
+    "eslint-plugin-react-refresh": "^0.4.5",
+    "postcss": "^8.4.33",
+    "tailwindcss": "^3.4.1",
+    "typescript": "^5.3.3",
+    "vite": "^5.0.11"
+  }
+}
+