CORRECTION to earlier "unrecoverable" call: the /post/<id> page is alive (200) and
DOES expose the scene's own fresh-signed poster via og:image / <video poster>
(post-id embedded, current timestamp) — only the STORED thumbnail URL had rotted.
Search/listings don't re-surface old posts (0 overlap), but per-post fetch works.
scripts/refresh_sxyprn_thumbs.py: iterate live sxyprn sources, fetch post page,
extract fresh og:image, UPDATE thumbnail_url (verified: refreshed URLs return 200).
_job_refresh_sxyprn_thumbs: every 12h refresh the 1200 least-recently-updated sources
(cycles the ~19k catalog within the expiry window). Pairs with the scene_resolver
overwrite fix so refreshed thumbnails stick.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
