- Add CIDR matching to isBlocked() and getBlocklistEntry() methods
- Fix event aggregator threshold logic to only trigger once on first crossing
- Add securityEventAggregator.clearAll() in intrusion-detector tests
- Fix RateLimiter constructor to accept custom maxSize parameter
- Fix token bucket getRetryAfterMs() to return Infinity for impossible requests
- Fix rate limiter peek() to return full capacity for non-existent keys
- Fix shield extractIp() to handle array X-Forwarded-For headers
- Fix ip-manager test mocks to include sync fs methods
- All security tests now passing (173 tests across 8 files)