Function getLogFiles

src/stats.ts:77–87

* Get list of available log files sorted by date (newest first).

()

 * Get list of available log files sorted by date (newest first).
 */
async function getLogFiles(): Promise<string[]> {
  try {
    const files = await readdir(LOG_DIR);
    return files
      .filter((f) => f.startsWith("usage-") && f.endsWith(".jsonl"))
      .sort()
      .reverse();
  } catch {
    return [];
  }
}

/**
 * Aggregate stats for a single day.