2 Commits

Author	SHA1	Message	Date
Senior Engineer	76d431e1ec	Add E.164 input validation for phone numbers (FRE-4506) ... - Extract phone validation to reusable utility (src/utils/phone-validation.ts) - Use libphonenumber-js for strict E.164 format validation - Normalize accepted numbers to canonical E.164 format - Add 22 comprehensive validation tests covering valid/invalid formats - Update existing tests to use valid E.164 test numbers - All 56 tests passing Co-Authored-By: Paperclip <noreply@paperclip.ing>	2026-04-29 21:22:23 -04:00
Michael Freno	3ad030a412	Add circuit breaker for Hiya/Truecaller external APIs (FRE-4508) ... - Implement CircuitBreaker class with CLOSED/OPEN/HALF_OPEN states - Configurable failure threshold, success threshold, and timeout - Fallback behavior when circuit opens (returns neutral 0.5 score) - State change callbacks for monitoring and logging - Comprehensive metrics tracking (executions, failures, successes, timestamps) - Update SpamShieldService to use circuit breakers for both Hiya and Truecaller - Add parallel API calls with graceful degradation - Export circuit breaker types and service interfaces - 32 unit tests covering circuit transitions, fallback, and service integration Co-Authored-By: Paperclip <noreply@paperclip.ing>	2026-04-29 19:07:54 -04:00