CREATE TABLE IF NOT EXISTS public.site_data (
  id text PRIMARY KEY DEFAULT 'main',
  data jsonb NOT NULL,
  updated_at timestamptz NOT NULL DEFAULT now()
);

ALTER TABLE public.site_data ENABLE ROW LEVEL SECURITY;

GRANT SELECT ON public.site_data TO anon, authenticated;

DROP POLICY IF EXISTS "site_data public read" ON public.site_data;
CREATE POLICY "site_data public read" ON public.site_data
  FOR SELECT TO anon, authenticated USING (true);