appendDashboardLatestBreakdownRow labeled its row "Latest dashboard
day" but read items[0], while its sibling appendDashboardLatestDailyRow
and every other chronological array in main.qml treat the data as
ascending and take the last element for "latest". Read the end of the
array so the row shows the most recent breakdown, not the oldest.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>