Function cacheIsFresh

src/upgrade/update-check.ts:155–162

(cache: UpdateCheckCacheFile | null, nowMs: number)

}

function cacheIsFresh(cache: UpdateCheckCacheFile | null, nowMs: number): boolean {
  if (!cache) return false;
  if (cache.lastSuccessAt !== undefined && nowMs - cache.lastSuccessAt < UPDATE_CHECK_TTL_MS) {
    return true;
  }
  // No recent success: only the failure backoff holds the network call off.
  return nowMs - cache.lastAttemptAt < UPDATE_CHECK_FAILURE_BACKOFF_MS;
}

/**
 * Ensure the on-disk cache is fresh (hitting the network only past the TTL /