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/layout.tsx

@@ -0,0 +1,49 @@
+import { getLocale } from 'next-intl/server';
+
+import { SidebarInset, SidebarProvider } from '@kit/ui/sidebar';
+
+import { DocsHeader } from './_components/docs-header';
+// local imports
+import { DocsNavigation } from './_components/docs-navigation';
+import { getDocs } from './_lib/server/docs.loader';
+import { buildDocumentationTree } from './_lib/utils';
+
+type DocsLayoutProps = React.PropsWithChildren<{
+  params: Promise<{ locale?: string }>;
+}>;
+
+async function DocsLayout({ children, params }: DocsLayoutProps) {
+  let { locale } = await params;
+
+  if (!locale) {
+    locale = await getLocale();
+  }
+
+  return (
+    <SidebarProvider
+      defaultOpen={true}
+      style={
+        {
+          '--sidebar-width': '300px',
+        } as React.CSSProperties
+      }
+    >
+      <DocsSidebar locale={locale} />
+
+      <SidebarInset className="h-screen overflow-y-auto overscroll-y-none">
+        <DocsHeader />
+
+        {children}
+      </SidebarInset>
+    </SidebarProvider>
+  );
+}
+
+async function DocsSidebar({ locale }: { locale: string }) {
+  const pages = await getDocs(locale);
+  const tree = buildDocumentationTree(pages);
+
+  return <DocsNavigation pages={tree} />;
+}
+
+export default DocsLayout;