Fresh desktop installs slid the Monitor panel open at startup — the two
showMonitor fallbacks defaulted to true (mobile already defaulted false
via getDefaultSettings). Default it to false everywhere; users opt in
via App Settings -> Show Monitor.
Also fix toggleMonitorPanel(): applyMonitorVisibility() leaves inline
display:none when the setting is off, so the session-tab task badge
toggled the open class invisibly (already broken on mobile). Clear the
inline display when opening so transient opens work.
Local echo defaults audited, unchanged: off on desktop, on for touch
(?? MobileDetection.isTouchDevice()), stored per-device and never
server-synced.
Verified on a fresh isolated instance (desktop + iPhone 13 emulation):
14/14 checks — panel closed + checkbox unchecked on both device
classes, local echo desktop-off/mobile-on, separate storage keys,
badge open works.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
