Rate Limiter Produce a complete rate limit handling design for an API integration. This covers detection, pre-emptive throttling, backoff strategy, request queuing, and multi-tenant isolation. The output is the technical specification a developer implements in the integration HTTP client layer. Rate Limit Detection HTTP 429 Response Handling When the API returns HTTP 429 (Too Many Requests): Rate Limit Header Tracking Parse rate limit headers on every response (not just 429), to detect when limits are approaching: Known rate limit configurations by API type (document the specific vendor's lim…