The stockAdapter seam built in v1 finally eats. Lane E's stock pack (parody-
transformed Discogs metadata + cover atlas) feeds record-shop bins + the dig
riffle behind ?stock=real. Economy stays a stub (buying = toast).
- Contract handshake (task 1, unblocked E): confirmed E's index schema as-is
in LANE_C_NOTES (items[{id,title,artist,price,price_band,atlas,uv}]; uv
origin top-left, C flips V for WebGL; fail-soft; per-type packs).
- stockpack.js (new): preloadStockPack/getStockPack (cached) + makeStockAdapter.
Atlas texture + material are shared/cached (like depot GLBs); each sleeve is
a cover PLANE sampling the atlas at its baked UV, so all real sleeves in a
room batch to ONE draw (record: 59 draws).
- stock.js binFan: real cover planes (else parody canvas). dig.js: riffles real
covers, pull card shows title/artist/$price/band. interiors.js: opts.stock=
'real' wires the adapter (warn-once + parody fallback if pack absent). Test
page reads ?stock=real, preloads record/book/toy, passes the adapter to the dig.
Validated (E's staged 24-sample; real covers drop in unchanged when E gets the
DB): determinism 0/30, leak-free rooms + real dig (0/0 over 25 cycles), draws
<=139 all rooms (record 59), fail-soft on no-pack types, ?dig=1&stock=real
leak-free. Flag-off + ?noassets untouched (procedural path byte-identical).
qa.sh --strict GREEN. F smoke hook + E contract in LANE_C_NOTES. Shot
docs/shots/laneC/stock_real_r7.jpg.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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