Use the shared title sanitizer for both SSR and client-side title editing
so note titles are cleaned by one function. Also sanitize note titles on
create in the fragments route and add a regression test for formatted
titles.
syncResponsiveMode already called redrawMobileUI() when crossing
desktop→mobile, but the reverse path only hid the mobile app. A session
that started narrow (mobile mode) never called initNavPanel/initEditorPanel
for the desktop form, leaving the preview and CM host with undefined
display states and stale scroll position.
Mirror the pattern: save wasMobile before clobbering _lastSyncWasMobile,
then call initNavPanel()+initEditorPanel() when wasMobile===true.
Both functions are idempotent (guarded by dataset flags) so a repeat
call on an already-initialised form is a no-op.
- Install markdown-it@14.1.1 as server-side renderer (renderMarkdown only)
- Preserve all Joplin extensions: underline (++..++), checkboxes,
blank-line markers, softbreak→<br>, resource URIs, spellcheck attrs,
hx-* strip, fence/code/image/link render overrides
- Fix blank-line round-trip: emptyDiv/emptyP Turndown rules now return
the BL sentinel instead of '<br>' (which line 611 inflated to 4 newlines)
or '' (which made blank-line edits never save)
- Disable CSS scroll anchoring in preview editor so images flow down
naturally when text is typed above them
- Narrow the Notebook + button label and padding in the nav header
- Bump static asset version to 20260501a
Eliminates fragile ad-hoc DOM toggling that allowed two mobile screens to
render simultaneously. All transitions now go through setMobileState()
reducer; renderMobile() is the only function that writes
.mobile-screen-active. assertSingleActiveScreen() self-heals violations
and traces them. Test asserts the architectural invariant in source.
Also: DB session lookup fails closed on transient errors instead of
crashing; mobile back-save uses formHash (not UI badge); single-screen
CSS via display:none/flex (no transforms); resize debounced without
reload; aria-hidden warning fix.
