How to recrawl initial page for new links without purging to keep track of duplicates?

// .env
CRAWLEE_PURGE_ON_START=false

// main.ts
const startUrls = ["example.com"]
const crawler = new CheerioCrawler({
  requestHandler: router,
  maxRequestsPerCrawl: 5,
  maxConcurrency: 1,
  // maxRequestsPerMinute: 30,
});
const main = async () => {
  await crawler.addRequests(startUrls);
  await crawler.run();
};
main();

// router.ts
router.addDefaultHandler(async ({ enqueueLinks, log }) => {
  log.info(`enqueueing new URLs`);
  await enqueueLinks({
    strategy: EnqueueStrategy.SameHostname,
    globs: [
      "https://example.com/news/*",
    ],
    label: "detail"
  })
});

router.addHandler("detail", async ({ request: req, $, log }) => {
  const title = await page.title();
  log.info(`Title of ${request.loadedUrl} is '${title}'`);

  // Save to DB Code here
});