The upstream registry gained be.immostory.videoseal.1 at revision d5960248,
so `sync_c2pa_soft_bindings.py --check` failed lint on main and on every pull
request. That step runs ahead of Ruff, which hid an ICN001 error in
scripts/_corpus_scan.py; import `date` directly, as the sibling scripts do.
Document the check's live-upstream behavior next to the refresh command.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>