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

app/products/[handle]/page.tsx

@@ -1,6 +1,5 @@
 import { getSelectedProductOptions } from "@shopify/hydrogen";
 import type { Metadata } from "next";
-import { cacheLife, cacheTag } from "next/cache";
 import { notFound } from "next/navigation";
 import { Suspense } from "react";
 
@@ -19,8 +18,6 @@ type Props = {
 
 export async function generateMetadata({ params }: Props): Promise<Metadata> {
   const { handle } = await params;
-  // Re-fetch the product for metadata. It hits the same `use cache` cache-point
-  // as the page render, so this is a cache hit in practice.
   const { product } = await fetchProduct(handle, "");
   const title = product?.title ?? "Product";
   return {
@@ -41,15 +38,9 @@ async function fetchProduct(
   handle: string,
   searchString: string,
 ): Promise<{ product: ProductData | null }> {
-  "use cache";
-  cacheLife("minutes");
-  cacheTag("products");
-
   // Read variant selection from URL option params (F4: a no-JS GET to
   // `?Size=Large&Color=Green` resolves the variant server-side). Do NOT pass
   // `optionNames: []` — an empty allow-list filters out every param.
-  // Reconstruct URLSearchParams from the serialized search string — `use cache`
-  // serializes arguments, so a URLSearchParams passed in loses `.get`.
   const selectedOptions = getSelectedProductOptions(new URLSearchParams(searchString));
 
   const { data, errors } = await staticStorefrontClient.graphql(PRODUCT_QUERY, {
@@ -89,13 +80,9 @@ export default async function ProductPage({ params, searchParams }: Props) {
 /**
  * Related products (`notes/product.md` "you may also like"). Best-effort: any
  * error/timeout returns an empty list so the PDP never breaks. Fetched via the
- * shared `staticStorefrontClient` inside a `use cache` cache-point.
+ * shared `staticStorefrontClient`.
  */
 async function RelatedProducts({ handle }: { handle: string }) {
-  "use cache";
-  cacheLife("minutes");
-  cacheTag("products");
-
   let related: ProductCardData[] = [];
   try {
     const { data, errors } = await staticStorefrontClient.graphql(RELATED_PRODUCTS_QUERY, {