- Add useIsMobile hook for viewport detection
- TabBar: larger height (48px), disable reorder on mobile, hide workspace numbers
- Header buttons: larger touch targets for SpellbookDropdown, UserMenu, LayoutControls
- Window toolbar: larger buttons (40px) on mobile
- Mosaic dividers: wider (12px) on mobile for easier dragging
- CommandLauncher: larger items, footer text, hide kbd hints on mobile
- Editor suggestions: responsive widths, min-height 44px touch targets
- EventFooter: larger kind/relay buttons on mobile
- CodeCopyButton: larger padding and icon on mobile
- MembersDropdown: larger trigger and list items on mobile
All changes use mobile-first Tailwind (base styles for mobile, md: for desktop)
to meet Apple HIG 44px minimum touch target recommendation.
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
