CREATE TABLE IF NOT EXISTS public.process_groups (
  id          uuid         PRIMARY KEY DEFAULT gen_random_uuid(),
  name        text         NOT NULL,
  created_by  uuid         REFERENCES public.users(id),
  created_at  timestamptz  NOT NULL DEFAULT now(),
  updated_at  timestamptz  NOT NULL DEFAULT now()
);

ALTER TABLE public.process_groups ENABLE ROW LEVEL SECURITY;

CREATE POLICY "all_process_groups" ON public.process_groups
  FOR ALL USING (auth.uid() IS NOT NULL)
  WITH CHECK (auth.uid() IS NOT NULL);