Contract 7.1.14

Training days are recorded (Jamie, 2026-09-24): the practice decks members play on a race week's training days had been dropped, a holdover from elixir-bot.

• war_current.training_today on a training day: training_day (1-3), trained (each member with practice decks so far today) and not_trained_count.
• war_history.member_weeks[].training_decks: the week's practice decks per member; null for a week before 2026-09-24.
• Training never counts as war attendance: decks_today, war_days and decks_used are unchanged.

Additive.