formatDateShort function
Short preset: unambiguous ISO-8601 calendar date yyyy-MM-dd
(e.g. 2026-06-10). No names, so it is locale-independent and sorts
lexically — ideal for compact dashboard columns.
Audited: 2026-06-12 11:26 EDT
Implementation
String formatDateShort(DateTime date) =>
'${date.year.toString().padLeft(4, '0')}-${_pad2(date.month)}-${_pad2(date.day)}';