BOLT-1268 P3 — address Bugbot clamped-range hour-window bug on PR #12204

Bugbot thread PRRT_kwDOJpxUwM6JP9Le: when event date span > MAX_DATE_RANGE_DAYS the from is clamped to (endDate - MAX_DATE_RANGE_DAYS), but hourStart/hourEnd still use the original startsAt/endsAt. Reports applies that morning hour window to every day in the truncated range, hiding valid hours. Fix: drop hourStart/hourEnd params entirely when the range was clamped. Multi-day spans rarely benefit from an hour-of-day filter anyway. Update tests for the new clamped+no-hours behavior.