agent terminal-wrap + dashboard msgflow get a translucent bg with
backdrop-filter blur+saturate so page-bg glow softens behind them.
new rows in the live panel and the dashboard message flow fade in
with a 4px slide-up. unread badge pulses; pending-operator-questions
section pulses its glow. history-backfilled rows skip the animation
(.no-anim) so the page doesn't stagger 100 fade-ins on load.