{"service":"QR Code Generator API","version":"1.0.0","endpoints":{"health":"GET  /health","generate":"POST /api/qr/generate          – body: { source_link }","list":"GET  /api/qr                   – query: ?status=active|inactive&page&limit","get":"GET  /api/qr/:qr_id","download":"GET  /api/qr/:qr_id/download","activate":"PATCH /api/qr/:qr_id/activate","deactivate":"PATCH /api/qr/:qr_id/deactivate","analytics":"GET  /api/qr/:qr_id/analytics  – scan logs & stats","delete":"DELETE /api/qr/:qr_id","scan":"GET  /qr/:qr_id                – QR scan redirect (auto-logged)"}}