Admin.tsx defined its own local Drink/BarRow-adjacent interfaces
rather than importing from @wutzcalc/shared, even though the tablet
code in the same package already does (App.tsx, Sale.tsx,
BarPicker.tsx). The two had already drifted: the local Drink.archived
was typed number while the shared package's was boolean, despite
describing the exact same wire field. No runtime bug (JS doesn't
enforce it, and the code only does truthiness checks), but a
maintainability smell.
BarRow now extends the shared Bar type instead of duplicating its
fields; Drink is imported directly. Totals/PerDrink/ByDay stay local
since they're admin-only stats shapes, not part of the wire contract
the tablet also consumes.
fb02cc0f94