What is the `pages/` directory in Nuxt.js?

The pages/ directory is a special directory in Nuxt.js where every .vue file automatically becomes a route in your application. Nuxt scans this directory and uses Vue Router under the hood to map files to URL paths. The pages/index.vue file maps to the root route /. The directory supports nested routes, dynamic parameters (e.g., [id].vue), optional parameters (e.g., [[slug]].vue), and catch-all routes. If your app doesn't need multiple pages, you can omit this directory and use only app.vue.