Initial commit: Full project structure

- Backend: NestJS with Docker
- Frontend: Next.js with Docker
- Nginx configuration for reverse proxy
- PostgreSQL setup
- Docker compose for orchestration
- Development environment configuration

backend/.env.example

@@ -0,0 +1,23 @@
+# Database
+DATABASE_URL=postgresql://dyolink_user:password@postgres:5432/dyolink_db
+POSTGRES_HOST=postgres
+POSTGRES_PORT=5432
+POSTGRES_USER=dyolink_user
+POSTGRES_PASSWORD=CHANGE_ME_IN_PRODUCTION
+POSTGRES_DB=dyolink_db
+
+# JWT
+JWT_SECRET=CHANGE_ME_TO_A_STRONG_SECRET_32_CHARS_MIN
+JWT_EXPIRES_IN=7d
+
+# Application
+PORT=3000
+NODE_ENV=development
+API_PREFIX=/api
+CORS_ORIGIN=http://localhost:3000
+
+# Email (configure for production)
+SMTP_HOST=smtp.gmail.com
+SMTP_PORT=587
+SMTP_USER=your_email@gmail.com
+SMTP_PASSWORD=your_app_password