Function getProgress

web-build/src/progress.ts:6–15

()

let progressCache: Set<string> | null = null;

function getProgress(): Set<string> {
  if (progressCache) return progressCache;
  try {
    const raw = localStorage.getItem(STORAGE_KEY);
    if (raw) return (progressCache = new Set(JSON.parse(raw)));
  } catch {
    // ignore
  }
  return (progressCache = new Set());
}

function saveProgress(completed: Set<string>) {
  progressCache = completed;