On touch, tapping a message used to reveal the reply/react/more bar (so the
action needed a second tap). Now a single tap performs the primary action
(open image/file, jump to a reply), and the action bar is revealed by a
~420ms long-press (with a small haptic); movement or an early release cancels,
and a fired long-press suppresses the trailing tap. A tap elsewhere dismisses
the revealed bar. Desktop hover behaviour is unchanged.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>