create table months (
  id uuid primary key default gen_random_uuid(),
  label text not null,
  snapshot jsonb not null,
  created_at timestamptz not null default now()
);

create table budget_entries (
  id uuid primary key default gen_random_uuid(),
  type text not null check (type in ('revenue', 'investments', 'mandatory', 'personal')),
  label text not null,
  amount numeric not null,
  month_id uuid references months(id) on delete set null,
  created_at timestamptz not null default now()
);

alter table budget_entries enable row level security;
alter table months enable row level security;

create policy "Allow all" on budget_entries for all using (true);
create policy "Allow all" on months for all using (true);