Remove next/cache usage (use cache, cacheLife, cacheTag, cacheComponents)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01F22Ms5Cxam5UHyxaCrtZzu

next.config.ts

@@ -3,14 +3,10 @@ import type { NextConfig } from "next";
 /**
  * Next.js 16 config for the Hydrogen example.
  *
- * `cacheComponents: true` enables Cache Components / `use cache` (engineering.md
- * F2 native Next caching instead of the Oxygen sub-request LRU).
- *
  * No `next/image` remote patterns — we use plain `<img>` + the `hydrogen-image`
  * helper (F12; Hydrogen ships no Image component and we size CDN URLs ourselves).
  */
 const nextConfig: NextConfig = {
-  cacheComponents: true,
   // React Strict Mode is disabled because `@shopify/hydrogen/react`'s
   // `PredictiveSearchProvider` destroys its store in the Strict Mode effect
   // cleanup (double-invoke), and `useMemo` returns the same (now-destroyed)