DEFAULT_
Default request timeout for getVisitorId. The FingerprintPro SDK treats 0 as "no timeout" and keeps the callback pending indefinitely on a slow / blocked device, which stalls every downstream caller that awaits the visitorId. 3000ms is comfortably above a healthy device's typical fingerprint time (~500-1500ms) while still letting the Sonar fallback path fire promptly when the device or network is degraded.