A combo card dropped on a main model loader does Use for that loader
(same confirmation), and on empty canvas builds its new group of nodes
where it was dropped; other nodes refuse it with a hint.
The star's keep menu has Remove (取消收藏) beside each kept row: after a
confirmation the recipe, combo or saved prompt goes to the Recycle Bin
through its own delete route, and the star (and the gallery's cached
list) goes back to empty.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
