Next.js encountered runtime / uncached data during prerendering (cacheComponents)

Error: Route "/dashboard": Next.js encountered uncached or runtime data during prerendering.

`fetch(...)`, `cookies()`, `headers()`, `params`, `searchParams`, or `connection()` accessed outside of `<Suspense>` prevents the route from being prerendered…

Ways to fix this:
  - [stream] Provide a placeholder with `<Suspense fallback={...}>` around the data access
  - [cache] … `"use cache"`
  - [block] Set `export const instant = false` to allow a blocking route

import { Suspense } from "react";

export default function Page() {
  return (
    <Suspense fallback={<p>Loading…</p>}>
      <Account /> {/* awaits auth() and the DB inside */}
    </Suspense>
  );
}

// or, for a page that is per-user anyway:
// export const instant = false;

next build fails because a route reads runtime or uncached data outside <Suspense> (cacheComponents is on). For this route, move the cookies/auth/DB access into a child component wrapped in <Suspense>, or add "use cache" if the data is the same for everyone, or export const instant = false if the page is fully per-user. Explain which one you picked.