ABET — Cross-Book Master Bet-Type Map

The static, versioned Rosetta Stone that drives systematic cross-book combination. For each book: its raw SHAPE, field paths, odds/selection encoding, dialect quirks, and the mapping of its market vocabulary to a CANONICAL bet type. A data-driven engine reads this — not bespoke code — so adding a book is a map entry, not a new parser. Raw structures change rarely → durable.