Describe the bug

Node.js version: v22.21.1

OS version: Linux manjaro 6.12.61-1-MANJARO

Description: Default export is now a constructor, can not use generics anymore.

import type Router from '@koa/router';
// same for `import type { Router } from '@koa/router';`

// this does not work anymore
type MyRouter = Router<AppState, AppContext>;

Actual behavior

//  ■ 'Router' refers to a value, but is being used as a type here. Did you mean 'typeof Router'?
type AppRouter = Router<DefaultState, DefaultContext>; 

Expected behavior

Code to reproduce

Checklist

• [ x] I have searched through GitHub issues for similar issues.
• [x ] I have completely read through the README and documentation.
• [x ] I have tested my code with the latest version of Node.js and this package and confirmed it is still not working.