glm-5.1
2791070971
- Add TokenBucket with nodelay semantics (nginx limit_req burst nodelay) - Per-IP rate limiting: IPv4 /32, IPv6 /64 prefix normalization - DashMap for concurrent access, ArcSwap for lock-free config reads - Background eviction task for stale entry cleanup - 429 response with plain text body, RATE_LIMIT log prefix - Config reload adopts new rate/burst on next request without clearing state - Unit tests for bucket algorithm and IPv6 normalization - Integration tests for 429 responses and per-IP independence