Backend Development Guidelines

Layered Architecture

Request Flow:
Client → Routes → Controllers → Services → Repositories → Database

src/
├── routes/           # Route definitions
├── controllers/      # Request handling
├── services/         # Business logic
├── repositories/     # Data access
├── middleware/       # Express middleware
├── validators/       # Input validation
├── types/           # TypeScript types
├── utils/           # Utilities
└── config/          # Configuration