* fix: display relative time instead of UTC in intel status output
The `updated_at` timestamps in `gsd-tools intel status` were displayed
as raw ISO/UTC strings, making them appear to show the wrong time in
non-UTC timezones. Replace with fuzzy relative times ("5 minutes ago",
"1 day ago") which are timezone-agnostic and more useful for freshness.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* test: add regression tests for timeAgo utility
Covers boundary values (seconds/minutes/hours/days/months/years),
singular vs plural formatting, and future-date edge case.
Addresses review feedback on #2132.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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