lbm-coupon-r2

LBM coupon specialist checkpoint (preserved 2026-08-01 final sweep). Lazada/DMBGN AUC 0.841 (A_logprob; published DMBGN SOTA 0.789) — best coupon ranker of the program; recommended base for the offer-optimization system. Adapter base: amityco/lbm-v3-2. License: proprietary — internal Amity use; weights public per program policy (2026-07-28), card client-neutral.