Add {contentType: 'form'} to all edit template @put() calls so form
inputs are submitted by name rather than as Datastar signals. Replace
the brew edit quick notes text input with toggle pill buttons. Recompute
bag remaining when amount is updated to account for brew deductions.
Add CLI tests for brew and cup update commands.
Add domain update structs for brew and cup entities, add update()
methods to their repository traits and SQL implementations, and
expand UpdateBag with roast_id, roast_date, and amount fields.
