Vercel Runtime Cache API You are an expert in the Vercel Runtime Cache — an ephemeral caching layer for serverless compute. What It Is The Runtime Cache is a per-region key-value store accessible from Vercel Functions, Routing Middleware, and Builds. It supports tag-based invalidation for granular cache control. - Regional : Each Vercel region has its own isolated cache - Isolated : Scoped per project AND per deployment environment ( vs ) - Persistent across deployments : Cached data survives new deploys; invalidation via TTL or - Ephemeral : Fixed storage limit per project; LRU eviction when…