Integrate Prisma for content; enhance SEO, i18n, and deployment workflows

Co-authored-by: dennis <dennis@konkol.net>

app/[locale]/projects/[slug]/page.tsx

@@ -1,9 +1,26 @@
 import { prisma } from "@/lib/prisma";
 import ProjectDetailClient from "@/app/_ui/ProjectDetailClient";
 import { notFound } from "next/navigation";
+import type { Metadata } from "next";
+import { getLanguageAlternates, toAbsoluteUrl } from "@/lib/seo";
 
 export const revalidate = 300;
 
+export async function generateMetadata({
+  params,
+}: {
+  params: Promise<{ locale: string; slug: string }>;
+}): Promise<Metadata> {
+  const { locale, slug } = await params;
+  const languages = getLanguageAlternates({ pathWithoutLocale: `projects/${slug}` });
+  return {
+    alternates: {
+      canonical: toAbsoluteUrl(`/${locale}/projects/${slug}`),
+      languages,
+    },
+  };
+}
+
 export default async function ProjectPage({
   params,
 }: {