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env.example

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+# Database
+DATABASE_URL="postgresql://username:password@localhost:5432/nestjs_user_crud?schema=public"
+
+# JWT Configuration
+JWT_SECRET="your-super-secret-jwt-key-here"
+JWT_EXPIRES_IN="7d"
+
+# Application
+PORT=3000
+NODE_ENV="development"
+
+# API Configuration
+API_PREFIX="api/v1"
+API_VERSION="1.0.0"
+
+# Rate Limiting
+THROTTLE_TTL=60
+THROTTLE_LIMIT=10
+
+# CORS
+CORS_ORIGIN="http://localhost:3000"
+