Approve-with-comments follow-ups:
- breadcrumb: fix the reverse regression where navigating A->B to a page absent
from the lazily-built tree (before its ancestors load) left the previous
page's clickable chain on screen. New pure computeBreadcrumbState clears a
stale chain that doesn't end at the current page, while keeping one that does
(no blank flash for an already-resolved page); unit-tested for the
navigated-to-absent-page case.
- share.service: getShareAncestorPage no longer swallows DB errors silently —
now a live public-share path (isPageReachableThroughShare), so a transient
error is logged with ancestor/child ids and still fails closed (caller 404s)
instead of becoming a traceless misleading "not found".
- i18n: register the new "Connecting… (read-only)" key (U+2026 ellipsis) in
en-US (source of truth) and ru-RU (Подключение… (только чтение)).
- share.service: correct the FUTURE note — 3 callers pass no shareId
(share-alias.controller/.service, share-seo.controller); the two ai-chat
callers already pass a real shareId.
- CHANGELOG: add Unreleased Changed/Fixed/Security entries for #216 opt-in
sub-pages default, #218 trimmed page-info payload + forged-shareId 404, #204
export internal-link name, #206/#218 breadcrumb, #192 callout paste, #218
editor pre-sync read-only gate.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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