Function isUsable

apps/cloud/src/auth/jwks-cache.ts:283–284

(candidate: CacheEntry)

  const isFresh = (candidate: CacheEntry): boolean => Date.now() - candidate.fetchedAt < ttlMs;
  const isUsable = (candidate: CacheEntry): boolean =>
    Date.now() - candidate.fetchedAt < staleMaxMs;

  const refresh = (): Promise<CacheEntry> => {
    if (inflight) return inflight;