[LocalMode] Annotates a result as served from the semantic cache, optionally with the hit latency (e.g. "cached · 12ms"). Drive cached/latencyMs from a useSemanticCache lookup result. Renders nothing when cached is false, so it is safe to drop next to any result. Self-contained and presentational.
pnpm dlx shadcn@latest add "https://registry.directory/r/localmode-ai/ui/local-first/cache-badge.json"