Preview: the editor render handler now returns the complete article HTML
({cards} tags expanded, children's cards appended when the page has no
tag) and the frontend swaps article.innerHTML wholesale — the old
detach/keep/re-append hack for .cards (which duplicated stacks) is gone.
Semantics: one card per item, no subtree flattening (stacks removed).
Bare {cards} lists immediate children (front page: the other top-level
items); a page-less item is represented by its first leaf page, the
nav-link logic. {cards: path} renders that page alone, path/* its
direct children, path/** all published descendants.
LeoVasanko
e0c1b37c0b