Title: "HttpRouter.get Behavior with Scope in Router R"

  <R1, E1>(
    path: PathInput,
    handler: Route.Handler<R1, E1>
  ): <R, E>(
    self: Router<R, E>
  ) => Router<
    | Exclude<R1, RouteContext | ServerRequest.ServerRequest | Scope.Scope>
    | Exclude<R, RouteContext | ServerRequest.ServerRequest | Scope.Scope>,
    E1 | E
  >