common_fetch was out of material, so an OpenRouter web-search call (gpt-5.2,
openrouter:web_search) returned candidate photo pages and page_image_fetch.py
resolved each og:image and downloaded it, recording page URL and hash locally.
Four frames kept, including the clearest entrance view yet.
The frames overturn the inherited 'eight stone steps, 12 m wide': the entrance
is three portals with individual short flights. Recorded as a resolved conflict
with the photographs as evidence.
