- scripts/stitch_mosaic_from_tiles.py: grid layout from metadata.json, flip-x/y, tile gap (gutters), compare to server mosaic.jpg
- tests/test_stitch_mosaic.py, Pillow in requirements, docs/mosaic_reconstruction_report.md
- Add --metadata-only flag: fetches scan detail pages, writes
metadata.json + scans.csv rows, skips all image downloads.
Re-runs skip scans whose metadata.json already exists.
- Atomic progress.json saves (temp-file rename).
- Heal-on-resume: tiles on disk but not in progress are silently
re-marked before building the pending list.
- scans.csv dedup: skip row if mosaic URL already in progress.
- Rename mosaic_downloaded -> mosaic_on_disk (reflects disk state).
- --recheck now checks mosaics as well as tiles.
- RunStats dataclass replaces raw int return; richer run summary.
- Fix argparse allow_abbrev reverted; fix --scan-id + --metadata-only
glob fallback when scan_time is absent.
- Add .venv/ to .gitignore.
- README: fix typo, update worker counts, document all new behaviour.
poprhythm