What decks do our players use? One call, by archetype, with who plays each

battles_meta_decks now folds a population by archetype - group_by 'archetype' for rows like 'Royal Hogs bridge spam' and 'Hog Rider cycle', group_by 'family' for the six families - and on a clan, player or collection each row names the members who play the shape, with their most-played deck of it. Rows are sorted by who plays them, never by a win rate, because the same label wins and loses with the player. Underneath, every deck in the record now carries its archetype as a stamp (written when a deck first appears, caught up nightly whenever the rules or the vocabulary move), so the name filter covers a whole season instead of its top rows. And when the meta reader is checking decks against your collection, it now says which families and shapes you already field, and on every row whether it is one of them: a deck in a family you play costs the least to adopt, a new win condition inside that family is the usual next step, a new family is a new deck to learn as well as levels to buy. Contract 6.6.0, additive.