The request a route handler receives: node's, plus the four conveniences this server attaches before dispatching.

An interface that extends IncomingMessage rather than a declare module augmenting it. The augmentation put path/query/params/send on every node:http request in the entire program — including ones this server never touched, where they were a lie the type checker would have vouched for. (It is also a global side effect JSR rejects outright.)

// Defined, not invoked: a real request comes from the server's own dispatch.
function routeOf(req: Request) {
  return `${req.path}?${new URLSearchParams(req.query)}`;
}