PHerc1299 whole-scroll unwrap (ufsm coarse-to-fine, 2026-10-30): wind96 winding fields + count-field ref, snapped slab fits, fit-join,
wraps (wraps/*.sfc, one surface per wrap), then all wraps stitched into one continuous spiral strip and flattened (ufsm strip /
strip-flatten), rendered at the scan resolution with CT + ift3-24000 ink. renders/: overview (strip folded into rows), strip_long,
stripes_div2 (stripes shrunk 2x per side), crops; JPEGs over 8000 px shrunk 2x per side. tables/: wrapcheck.tsv (per-wrap checks),
segments.tsv / strip.json / flat.json (strip layout). strip_papyrus.tsv / papyrus_wraps.tsv: share of the surface on papyrus.