Function readState

hooks_src/cost-tracker.js:52–57

()

// ── State management ─────────────────────────────────────────────────────────

function readState() {
  try {
    if (!fs.existsSync(STATE_FILE)) return null;
    return JSON.parse(fs.readFileSync(STATE_FILE, 'utf8'));
  } catch { return null; }
}

function writeState(state) {
  try {