Complements the existing avg-by-weekday chart with its orthogonal
partner: which hour of the day the user typically commits. The api
buckets events by EXTRACT(hour FROM occurred_at AT TIME ZONE $tz) so
the chart matches the clock the user sees rather than UTC; the UI
passes the browser's resolved IANA timezone. Renders as 24 mini-bars
below the weekday chart with labels every 4 hours and per-bar
tooltips showing the average events/day at that hour.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
rob thijssen
2821548e6e
