Amazon Apparel 2023 outfit bundles (need → bundle of role-tagged products), the gold source
for DeepShopper's AMZ side: trains the reward V0 (qwen4b-apparel23-bundle-sft),
seeds reward V1 positives and the Reducer soft-gold targets, and provides the AMZ
mapper needs. sft.{train,test}.jsonl. Derived from public Amazon data; research use. Code:
https://github.com/clijo/reco-rl (branch outfit_bundle).
