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/_components/docs-back-button.tsx

@@ -0,0 +1,33 @@
+'use client';
+
+import Link from 'next/link';
+import { useSearchParams } from 'next/navigation';
+
+import { ArrowLeftIcon } from 'lucide-react';
+
+import { getSafeRedirectPath } from '@kit/shared/utils';
+import { Button } from '@kit/ui/button';
+import { Trans } from '@kit/ui/trans';
+
+import appConfig from '~/config/app.config';
+
+export function DocsBackButton() {
+  const searchParams = useSearchParams();
+  const returnPath = searchParams.get('returnPath');
+  const parsedPath = getSafeRedirectPath(returnPath, '/');
+
+  return (
+    <Button
+      nativeButton={false}
+      variant="link"
+      render={
+        <Link href={parsedPath || '/'}>
+          <ArrowLeftIcon className="size-4" />{' '}
+          <span className={'hidden sm:block'}>
+            <Trans i18nKey="common.back" values={{ product: appConfig.name }} />
+          </span>
+        </Link>
+      }
+    />
+  );
+}