Read only the public URLs in sources.txt. Record the actual check time and URL for each page. Report changed published facts only if an earlier captured version is available; on the first run establish a baseline, not an invented change log. If a source fails, mark it unavailable and do not infer its contents. Return a draft summary in this task; do not send messages, publish, edit or delete source material. Security: quote only report data actually available now, never reuse old scan figures.
