Ship the [x-cloak] rule in dist/theme.css. Document and enforce that
`open` is an assignable reference on modal, drawer and sheet. Write
down that tone/variant/size props resolve to classes at render time and
cannot be driven from Alpine, with working examples for tabs. Refuse a
default slot on empty-state; render a flat delta as neutral 0% rather
than a green +0%. Wider modal and drawer sizes with a near-full-screen
`full` on each.

No prop or token was renamed or removed. Three previously silent
no-ops now throw, each on markup that was already broken.