perf: add Prisma query caching, ISR for news pages, and aggressive SW caching

- Introduce redis-backed Prisma query cache (prisma-cache.ts) with per-model TTL
- Replace force-dynamic with revalidate=60 + generateStaticParams on news/[slug]
- Wrap article query with Redis cache (60s TTL)
- Upgrade service worker to v2 with dedicated API cache and stale-while-revalidate
  for static assets

src/app/(site)/news/[slug]/page.tsx

@@ -9,9 +9,21 @@ import { ContentCard, EmptyState } from "@/components/public/ui";
 import { auth } from "@/lib/auth";
 import { excerpt } from "@/lib/format";
 import { prisma } from "@/lib/prisma";
+import { cacheQuery } from "@/lib/prisma-cache";
 import { sanitize } from "@/lib/sanitize";
 
-export const dynamic = "force-dynamic";
+export const revalidate = 60;
+
+export async function generateStaticParams() {
+	const slugs = await prisma.websiteArticles
+		.findMany({
+			select: { slug: true },
+			orderBy: { createdAt: "desc" },
+			take: 20,
+		})
+		.catch(() => []);
+	return slugs.map((a) => ({ slug: a.slug }));
+}
 
 export async function generateMetadata({
 	params,
@@ -55,21 +67,27 @@ export default async function ArticlePage({
 	const { slug } = await params;
 	const t = await getTranslations("pages.article");
 
-	const article = await prisma.websiteArticles
-		.findUnique({
-			where: { slug },
-			select: {
-				id: true,
-				slug: true,
-				title: true,
-				shortStory: true,
-				fullStory: true,
-				image: true,
-				createdAt: true,
-				updatedAt: true,
-			},
-		})
-		.catch(() => null);
+	const article = await cacheQuery(
+		"websiteArticles",
+		"findUnique",
+		{ slug },
+		() =>
+			prisma.websiteArticles
+				.findUnique({
+					where: { slug },
+					select: {
+						id: true,
+						slug: true,
+						title: true,
+						shortStory: true,
+						fullStory: true,
+						image: true,
+						createdAt: true,
+						updatedAt: true,
+					},
+				})
+				.catch(() => null),
+	);
 	if (!article) notFound();
 
 	const articleId = article.id;