5 new tests asserting isAllDay=true branch: lead=0→"Today", 1440→"Tomorrow", 2880→"In 2 days", 10080→"In 1 week"; timed (isAllDay=false) behavior unchanged. All 5 FAIL (RED): humanizeLeadMinutes only accepts one argument.
5 new tests asserting isAllDay=true branch: lead=0→"Today", 1440→"Tomorrow", 2880→"In 2 days", 10080→"In 1 week"; timed (isAllDay=false) behavior unchanged. All 5 FAIL (RED): humanizeLeadMinutes only accepts one argument.