Release-cycle red-team found the admin-only gate missed PageService.create():
content/textContent/ydoc were derived and persisted without the strip, so any
space member could POST /pages/create with an htmlEmbed node (incl. the
markdown/html <!--html-embed:BASE64--> form) and store executing JS for every
reader. Add the same gate used by duplicatePage: strip htmlEmbed when the
caller is not a workspace admin/owner. Role is plumbed from the controller
(user.role); unknown role => non-admin (strip). All four create paths (create,
duplicate, single import, zip import) plus the update paths are now guarded.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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