Read the current OneDrive link from the stat-check.com/elo iframe on
each run, falling back to EMBED_URL if the page can't be read or its
link 404s. Retry 429/5xx and network errors up to three times with
backoff, after a one-off 503 from the Badger token endpoint failed a run.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The old share link now returns itemNotFound; stat-check.com/elo embeds
a new link for the same workbook.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>