{"service":"Vector.co Webhook Handler","version":"1.0.0","endpoints":{"webhook":"POST /webhook?token=SECRET","recent":"GET /recent?since=ISO_TIMESTAMP&limit=N","unmatched":"GET /unmatched?limit=N","stats":"GET /stats","by_date":"GET /by-date?date=YYYY-MM-DD","mark_matched":"POST /mark-matched","health":"GET /health"},"note":"Query endpoints require X-API-Key header."}