Contract 9.11.0

A Clan Wars duel counts as its rounds everywhere a deck or card is counted (feedback #363). A duel is up to three games, each with its own deck, and as one row with no deck it was in no one's meta: a war deck played only in duels was invisible, and roughly half of a clan's war games never reached the season rollups. Each round now carries its own deck_hash (its eight cards, no tower troop, the identity a Clan Wars battle has) and its own result by that round's crowns, and counts as one game.

• battles_meta_decks, battles_meta_cards and cards_card (season, forms, history, bands, decks): war and all-mode rows count duel rounds, and each row carries duel_rounds, how many of its battles were rounds (null on a season rollup row until the nightly rebuild splits it). The meta tools carry duel_rounds beside decided_battles too. excluded still counts battles: a duel is one battle in considered and excluded.duels, and its rounds are decided games, so considered still matches battles_query and battles_trends.
• cards_synergy: a round's deck is walked like any deck.
• battles_cards: each round is a game, with the cards played that round and that round's result (the opponent's cards from the same round).
• battles_deck_sets and battles_deck_upgrades: the season's war record holds every player's duel rounds, so the player's own are no longer added on top; modes.<mode>.duel_rounds replaces modes.war.your_duel_rounds. The deck row's your_duel_rounds is unchanged.

battles_decks is unchanged: its rows are battles with one deck, and duel_decks lists the round decks apart. Additive, apart from modes.war.your_duel_rounds.