A remote input could not be fetched — refused, 404, or not something a module can be made of.
import { RemoteUnreadable } from './remote-inputs.ts'; RemoteUnreadable({ url: 'https://x/a.js', why: '404 Not Found' }).message; // 'could not read https://x/a.js — 404 Not Found'
Failure.FailureFactory<"RemoteUnreadable", { url: string; why: string; }>