Tiered Cache Smart Topology

What this post added

Introduced 'Smart Topology' for Tiered Cache, which automatically configures the optimal topology by identifying the single best data center for origin requests based on latency probing. Implemented a leaderboard algorithm that selects the best and second-best proxying data centers based on 24-hour median latency, with a fallback mechanism for Anycast networks and a check for physically impossible latency observations.