// src/app/billing-locked/layout.tsx — full-screen centered shell (outside the
// (app) sidebar group), same pattern as /onboarding.
export default function BillingLockedLayout({
  children,
}: {
  children: React.ReactNode;
}) {
  return (
    <div className="min-h-svh flex items-center justify-center p-6">
      {children}
    </div>
  );
}