소개
This skill provides comprehensive architectural guidance for developing scalable and maintainable Node.js applications. It implements modern software engineering patterns such as layered architecture (Controller-Service-Repository), dependency injection, and centralized error handling to ensure code robustness and testability. Whether you are building REST APIs, GraphQL backends, or microservices, this skill offers production-grade implementations for authentication, schema-based request validation, and database integration, helping developers move from initial prototype to a secure, high-performance production environment.