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]/admin/layout.tsx

@@ -0,0 +1,44 @@
+import { use } from 'react';
+
+import { cookies } from 'next/headers';
+
+import { Page, PageMobileNavigation, PageNavigation } from '@kit/ui/page';
+import { SidebarProvider } from '@kit/ui/sidebar';
+
+import { AdminSidebar } from '~/admin/_components/admin-sidebar';
+import { AdminMobileNavigation } from '~/admin/_components/mobile-navigation';
+
+export const metadata = {
+  title: `Super Admin`,
+};
+
+export const dynamic = 'force-dynamic';
+
+export default function AdminLayout(props: React.PropsWithChildren) {
+  const state = use(getLayoutState());
+
+  return (
+    <SidebarProvider defaultOpen={state.open}>
+      <Page style={'sidebar'}>
+        <PageNavigation>
+          <AdminSidebar />
+        </PageNavigation>
+
+        <PageMobileNavigation>
+          <AdminMobileNavigation />
+        </PageMobileNavigation>
+
+        {props.children}
+      </Page>
+    </SidebarProvider>
+  );
+}
+
+async function getLayoutState() {
+  const cookieStore = await cookies();
+  const sidebarOpenCookie = cookieStore.get('sidebar_state');
+
+  return {
+    open: sidebarOpenCookie?.value === 'true',
+  };
+}