Contract 7.1.15

Training-day decks before 2026-09-24 are rebuilt from recorded battles (Jamie, 2026-09-24).

• war_history.member_weeks[].training_decks covers earlier weeks: river-race battles on a week's training days, credited to the clan the member played them for (a 1v1 is one deck, a duel one per round, four a day at most). A rebuilt figure is a floor where a member's log was not fully captured; the race poll's own count wins wherever it exists.

Additive.