{"success":true,"data":"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<sitemapindex xmlns=\"http://www.sitemaps.org/schemas/sitemap/0.9\">\n  <sitemap>\n    <loc>https://yourstore.com/sitemap-products.xml</loc>\n    <lastmod>2026-05-12</lastmod>\n  </sitemap>\n  <sitemap>\n    <loc>https://yourstore.com/sitemap-categories.xml</loc>\n    <lastmod>2026-05-12</lastmod>\n  </sitemap>\n</sitemapindex>"}