- Add an atomic .lm-examples-complete marker; only a folder with media and
the marker is skipped, so interrupted or legacy folders are re-checked by
the per-image existence path. Clear the marker before each pass.
- Treat processed/failed folders without a marker as pending so the
auto-download pre-check repairs them, and clear markers when provider
metadata is refreshed or custom images are imported.
- Bound stale-metadata refreshes at 90s so one hung provider cannot park the
serial run; count metadata-missing models as retryable.
- Record failure reasons in the progress file, expose failure_summary, and
render a no-media/unavailable/retry breakdown in the progress panel with a
warning completion toast.
- Add marker, partial-repair, timeout, failure-summary and UI tests.
Will Miao
f9cb3988aa