{"success":true,"message":"Welcome to QR Code API","endpoints":{"create":"POST /api/qr-codes","getAll":"GET /api/qr-codes","getById":"GET /api/qr-codes/:id","update":"PATCH /api/qr-codes/:id","delete":"DELETE /api/qr-codes/:id"},"timestamp":"2026-09-20T23:21:02.673Z"}