El starter SaaS listo para agentes en TanStack Start

• src/
• routes/
• _authenticated/
• index.tsx
• pricing.tsx
• api/webhooks/
• integrations/supabase/
• lib/
• checkout.functions.ts
• config/billing.ts
• supabase/migrations/
• README.md
• CLAUDE.md listo para agentes

-- Add a new user-owned table with RLS (5 steps)

-- 1. Create the table (user_id + timestamps)
create table public.things (
  id uuid primary key default gen_random_uuid(),
  user_id uuid not null references auth.users(id) on delete cascade,
  created_at timestamptz not null default now(),
  updated_at timestamptz not null default now()
);

-- 2. Grant Data API access
grant select, insert, update, delete on public.things to authenticated;
grant all on public.things to service_role;

-- 3. Enable RLS
alter table public.things enable row level security;

-- 4. Four policies scoped to auth.uid() = user_id
create policy "select own" on public.things
  for select to authenticated using (auth.uid() = user_id);

-- 5. Attach the shared updated_at trigger
create trigger things_set_updated_at
  before update on public.things
  for each row execute function public.set_updated_at();