Animation widgets lab

Unlisted test route for motion, embed, and add-to-cart interaction experiments. Open with a country prefix, e.g. /au/test/animation-widgets. Sections are paginated (?page=2, 10 per page); add-to-cart / button interaction blocks start around page 13 (see footer pagination). The old /test/button-animations URL redirects to that page. Global cursor trail is disabled so the custom cursor demo is visible.