- 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.
Move reverse-migration logic from get_model_folder() (hot path, called on
every metadata/example-images request) to ExampleImagesMigration, where it
runs once at startup. On network storage this was causing 22-38s delays
per LoRA card click.
Additionally optimize prune_stale_example_images() to read the directory
listing once instead of per image entry (O(N*M) → O(M)). Also reorder
consolidation checks so regex filters run before filesystem stat calls.
Will Miao