Next.js Supabase V3 (#463)

Version 3 of the kit:
- Radix UI replaced with Base UI (using the Shadcn UI patterns)
- next-intl replaces react-i18next
- enhanceAction deprecated; usage moved to next-safe-action
- main layout now wrapped with [locale] path segment
- Teams only mode
- Layout updates
- Zod v4
- Next.js 16.2
- Typescript 6
- All other dependencies updated
- Removed deprecated Edge CSRF
- Dynamic Github Action runner

apps/web/app/[locale]/docs/[...slug]/page.tsx

@@ -0,0 +1,80 @@
+import { cache } from 'react';
+
+import type { Metadata } from 'next';
+import { notFound } from 'next/navigation';
+
+import { ContentRenderer, createCmsClient } from '@kit/cms';
+import { cn } from '@kit/ui/utils';
+
+const getPageBySlug = cache(pageLoader);
+
+interface DocumentationPageProps {
+  params: Promise<{ slug: string[] }>;
+}
+
+async function pageLoader(slug: string) {
+  const client = await createCmsClient();
+
+  return client.getContentItemBySlug({ slug, collection: 'documentation' });
+}
+
+export async function generateMetadata({
+  params,
+}: DocumentationPageProps): Promise<Metadata> {
+  const slug = (await params).slug.join('/');
+  const page = await getPageBySlug(slug);
+
+  if (!page) {
+    notFound();
+  }
+
+  const { title, description } = page;
+
+  return {
+    title,
+    description,
+  };
+}
+
+async function DocumentationPage({ params }: DocumentationPageProps) {
+  const slug = (await params).slug.join('/');
+  const page = await getPageBySlug(slug);
+
+  if (!page) {
+    notFound();
+  }
+
+  const description = page?.description ?? '';
+
+  return (
+    <div className={'container flex flex-1 flex-col gap-y-4'}>
+      <div className={'flex flex-1'}>
+        <div className="relative mx-auto max-w-3xl flex-1 flex-col overflow-x-hidden">
+          <article
+            className={cn('mx-auto h-full w-full flex-1 gap-y-12 pt-4 pb-36')}
+          >
+            <section className={'mt-4 flex flex-col gap-y-1 pb-4'}>
+              <h1
+                className={
+                  'text-foreground text-3xl font-semibold tracking-tighter'
+                }
+              >
+                {page.title}
+              </h1>
+
+              <h2 className={'text-secondary-foreground/80 text-lg'}>
+                {description}
+              </h2>
+            </section>
+
+            <div className={'markdoc'}>
+              <ContentRenderer content={page.content} />
+            </div>
+          </article>
+        </div>
+      </div>
+    </div>
+  );
+}
+
+export default DocumentationPage;