chore: groundwork for update from settings page

docs/design/components.md

@@ -784,3 +784,18 @@ Exact values live in `source/MediaFrame.dc.html`. Copy and states are in [media]
 | MediaPicker | UTabs inside ImageUploader | articleId | picked(item, alt) | Editor |
 
 ImageUploader (changed): it gains the Upload and Library tabs and the "Already in your library" card. The remove-image confirm becomes neutral and only detaches the image from the article.
+
+## Added with Updates
+
+Exact values live in `source/AppFrame.dc.html` (the Settings and Home states). Copy and states are in [settings](screens/settings.md) and [home](screens/home.md).
+
+| Component | Nuxt UI base | Props | Emits | Used in |
+|---|---|---|---|---|
+| UpdatesCard | custom card, UProgress, UButton, UCollapsible | status: UpdateStatus, role | check, update, restart, copy-command | Settings |
+| UpdateStatusBlock | custom (polite live region) | tone, icon, title, text, meta | none | UpdatesCard |
+| UpdateProgress | UProgress | label, text, value or indeterminate | none | UpdatesCard |
+| ReleaseNotes | UCollapsible | version, date, items | none | UpdatesCard |
+| ServerCommand | UButton, code block | line | copy | UpdatesCard (Not prepared) |
+| RestartOverlay | custom full-page `role="status"` | title, text, startedAt, slow | reload | App shell |
+| UpdateBanner | UAlert | state: 'available'\|'ready' | go-to-settings, dismiss | Home (owner) |
+| UpdatePill | UBadge | none | none | DashboardShell Settings item (dot on mobile) |