fix(mobile): responsive parity — touch targets, iOS zoom, viewport clamping
rNotes: always-visible add button on touch, 36px toolbar buttons with horizontal
scroll, URL popover as bottom sheet on mobile, improved comment sidebar bottom
panel with drag handle, larger footer buttons, slash menu viewport clamping and
mobile-friendly item sizes, reduced code-textarea/image-preview heights.
rTasks/rFiles: font-size 16px on inputs to prevent iOS Safari auto-zoom.
Shell: .hover-reveal touch utility, 36px min-height on rapp-nav buttons.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Jeff Emmett
355d33768a