[lang]/page/layout.tsx
{"lang":"en"}
state: 0
[lang]/author/[id]/page.tsx
{"lang":"en","id":"1"}
state: 0
J.K. Rowling
{ "author": { "id": 1, "firstName": "J.K.", "lastName": "Rowling", "nationality": "British", "genre": "Fantasy", "notableWorks": [ "Harry Potter series" ], "website": "https://www.jkrowling.com/", "url": "/author/j-k-rowling" } }