/**
 * Runtime preamble — MUST stay the first import in server.ts.
 *
 * Next's app-render calls createAsyncLocalStorage(), which falls back to a
 * throwing FakeAsyncLocalStorage when `globalThis.AsyncLocalStorage` is unset
 * ("Invariant: AsyncLocalStorage accessed in runtime where it is not
 * available", error E504). next/dist/server/node-environment-baseline sets it
 * during Next's own standalone-server bootstrap, but our custom server
 * (dist/server.js → server-custom.js) can load app-render storage before that
 * runs. Set it up-front, idempotently, so the invariant can never fire.
 */
import { AsyncLocalStorage } from 'node:async_hooks';

const g = globalThis as typeof globalThis & { AsyncLocalStorage?: unknown };
g.AsyncLocalStorage ??= AsyncLocalStorage;