Create MixpanelService that uses FieldEncryptionService.hashPhoneNumber()
to SHA-256 hash phone numbers before sending to Mixpanel analytics.
- Implement spamBlocked() method with phone number hashing
- Add 16 unit tests verifying hash correctness and API behavior
- Export service from package index
Co-Authored-By: Paperclip <noreply@paperclip.ing>
- Create regex-validation utility with ReDoS detection (nested quantifiers,
overlapping alternations, complexity limits)
- Add @db.VarChar(500) constraint on pattern field in Prisma schema
- Integrate validation in rule-engine at load time and evaluation time
- Add 46 unit tests covering syntax, ReDoS patterns, complexity, edge cases
Co-Authored-By: Paperclip <noreply@paperclip.ing>
- Add runtime flag evaluation from FLAG_<KEY> environment variables
- Add enableCallAnalysis flag check to analyzeCall() and interceptCall()
- Add enableFeedbackLoop flag check to recordFeedback()
- Add 19 tests for feature flag behavior (checkFeatureFlag, getters, service integration)
- Add vitest config and test script to spamshield package
- Created decision-engine.constants.ts with all scoring weights, thresholds, and behavioral scores
- Updated decision-engine.ts to import and use constants instead of inline values
- All 12 hardcoded values now have named, documented constants
- Pre-existing type errors are unrelated to this change
- 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>
