Node inclusion no longer depends on views in the window: every page
from /_api/pages is shown (the front page used to vanish when quiet).
Omission follows the navigation instead — index pages without content
of their own (category labels and empty pages, the nodes nav links
bypass to the first child) are omitted, children promoted, first
visible child taking the slot. Deleted pages named by traffic are
inserted as ghosts where they would have been, materializing missing
ancestors as content-less category lanes.
/_api/pages gains the "empty" flag (not node.chunks) for the nav
notion; has_content (chunks is not None) stays for the structure
editor's delete affordance.
LeoVasanko
204c6ab608