This runs per post, per render while scrolling, and showed up in the scroll
profile as parseISO plus two Date objects. Date.parse returns NaN for an
unparseable value and NaN > n is false, which is the same "not active" answer
the date-fns version gave.
Moved to liveNow/utils.ts alongside the other pure helpers so it can be tested
without pulling in the feature's React and query imports. index.tsx already
re-exports utils, so every existing import site is unchanged.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Tomek Zawadzki
6860c276dd