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/backend/package.json

@@ -0,0 +1,52 @@
+{
+  "name": "backend",
+  "version": "1.0.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "tsx watch src/server.ts",
+    "build": "tsc",
+    "start": "node dist/server.js",
+    "lint": "eslint . --ext .ts",
+    "type-check": "tsc --noEmit",
+    "prisma:generate": "prisma generate",
+    "prisma:migrate": "prisma migrate dev",
+    "prisma:studio": "prisma studio",
+    "prisma:seed": "tsx prisma/seed.ts"
+  },
+  "dependencies": {
+    "express": "^4.18.2",
+    "cors": "^2.8.5",
+    "dotenv": "^16.3.1",
+    "@prisma/client": "^5.8.1",
+    "passport": "^0.7.0",
+    "passport-local": "^1.0.0",
+    "passport-google-oauth20": "^2.0.0",
+    "passport-microsoft": "^1.0.0",
+    "express-session": "^1.17.3",
+    "express-mysql-session": "^3.0.0",
+    "bcrypt": "^5.1.1",
+    "multer": "^1.4.5-lts.1",
+    "zod": "^3.22.4",
+    "helmet": "^7.1.0",
+    "express-rate-limit": "^7.1.5"
+  },
+  "devDependencies": {
+    "@types/express": "^4.17.21",
+    "@types/node": "^20.11.5",
+    "@types/cors": "^2.8.17",
+    "@types/passport": "^1.0.16",
+    "@types/passport-local": "^1.0.38",
+    "@types/passport-google-oauth20": "^2.0.14",
+    "@types/express-session": "^1.17.10",
+    "@types/bcrypt": "^5.0.2",
+    "@types/multer": "^1.4.11",
+    "@typescript-eslint/eslint-plugin": "^6.19.0",
+    "@typescript-eslint/parser": "^6.19.0",
+    "eslint": "^8.56.0",
+    "prisma": "^5.8.1",
+    "tsx": "^4.7.0",
+    "typescript": "^5.3.3"
+  }
+}
+