❌ Ralat:create table if not exists public.cards (id uuid primary key default gen_random_uuid(), card_data jsonb not null, created_at timestamptz default now());
alter table public.cards enable row level security;
create policy "public_read_cards" on public.cards for select to anon, authenticated using (true);
create policy "public_insert_cards" on public.cards for insert to anon, authenticated with check (true);