{"name":"Surveys Platform REST API","version":"0.1.0","description":"Server-only platform backend (Phase 1: core billing).","endpoints":{"checkout":"POST /api/billing/checkout","webhook":"POST /api/webhooks/mollie","status":"GET /api/billing/status"},"health_endpoint":"/health","authentication":"Supabase JWT required for /api/billing/* endpoints; /api/webhooks/mollie is called by Mollie and is unauthenticated."}