The picker footer reads "Permissions checked N ago" from checked_at, but
voice_check stamped it with the response time. A denied result is cached
for 10 min, so a user who fixed the permission in Discord and reopened the
picker saw "checked 2s ago · Needs fix" from a stale snapshot. checked_at
now carries the oldest fetched_at behind the answer (now when there is none).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
