Routing in Go Part 1: A small server you can grow without rewriting at midnight

This series guides the development of a Go API, starting from a basic server to avoid common architectural failures. Part 2 introduces a service layer, auth middleware, request timeouts, and httptest for better structure. Part 3 completes the upgrade by adding offset pagination, PUT endpoints for updates, structured logging, and a lightweight OpenAPI specification. The approach emphasizes using the standard library to create a maintainable, professional system without relying on complex external magic.