0.6.0

Changed

• The libxml error buffer is cleared before a sitemap is parsed: an error another library left in the process
  (DOMDocument::loadHTML, a SOAP client) was read as this sitemap's and a correct file was refused.
• <lastmod> without a time zone (2026-09-06) is UTC, not the process time zone; an unparsable <lastmod> is a debug
  line naming the URL instead of silence.
• A nested sitemap on the same host with an explicit default port (https://x.com:443) is the same origin.
• A local sitemap index may only reference local parts inside its own directory (<loc>/etc/passwd</loc> was read and
  echoed line by line into the log as a "text sitemap").
• Requires indexnowkit/core ^0.11.