- Add enabled field to RateLimitConfig (default: true, env: NORA_RATE_LIMIT_ENABLED)
- Skip rate limiter layers entirely when disabled
- Replace PeerIpKeyExtractor with SmartIpKeyExtractor for upload/general routes
to correctly identify clients behind reverse proxies and Docker bridge networks
- Keep PeerIpKeyExtractor for auth routes (stricter brute-force protection)
Root cause: PeerIpKeyExtractor saw all Docker bridge traffic as single IP (172.17.0.1),
exhausting GCRA bucket for all clients simultaneously. With burst=1M, recovery time
reached 84000+ seconds.
Rate limits now configurable via config.toml and ENV variables:
- New [rate_limit] config section with auth/upload/general settings
- ENV: NORA_RATE_LIMIT_{AUTH|UPLOAD|GENERAL}_{RPS|BURST}
- Rate limit configuration logged at startup
- Functions accept &RateLimitConfig instead of hardcoded values
- Health, metrics, UI, and API docs are now exempt from rate limiting
- Increased upload rate limits to 200 req/s with burst of 500 for Docker compatibility
