prefetchCache

Fire-and-forget cache warm.

`prefetchCache(input, options?)`

From swoff/fetch/core.ts. Fire-and-forget prefetch to warm the cache. Silently swallows errors.

prefetchCache("/api/todos");
prefetchCache("/api/todos");

fetchWithCache

Unified fetch with caching, auth, offline queue, auto-invalidation.

mutation

Offline mutation queue, mutation state tracking, and sync manager.