feat(attestation): add resilient IRIS attestation polling manager with exponential backoff & telemetry

[forumevi]

Summary

This PR replaces the static polling loop in useCrossChainTransfer with an AttestationResilienceManager to significantly improve the reliability of Circle IRIS Attestation API calls during cross-chain transfers.

Key Changes

• Full Jitter Exponential Backoff: Implements a jittered exponential backoff algorithm (AttestationResilienceManager) to handle API rate limits (429) and transient network dropouts seamlessly.
• Hook Integration: Integrated directly into src/hooks/use-cross-chain-transfer.ts with real-time UI logging, giving users visibility into attempt counts and elapsed time.
• Fault Tolerance: Eliminates application crashes caused by rigid polling logic.
• Unit Tests & Build Fixes: Added comprehensive unit tests under src/utils/__tests__/attestation-resilience.test.ts and configured tsconfig.json to properly scope production builds.

Verification

• Verified production build via npm run build (Passed with zero errors).
• Tested exponential backoff bounds and attestation completion logic via Jest tests.