Compliance & Security Hardening

Added sanctions screening and fraud prevention, plus fixes for OAuth sign-in issues.

Bug Fixes

Fixed an issue where signing in with Google OAuth could crash due to a logging error in the fingerprint service.

Updated extraction selectors for Amazon product pages to correctly capture coupon and promotional offer data.

New compliance layer screens signups against OFAC sanctions lists and applies geo-IP restrictions for prohibited regions.

Plus 19 internal changes for stability and performance.