fix: resolve conflict in lib date

app/lib/date.ts

@@ -64,4 +64,17 @@ export function getFormatDateId(date: Date) {
   const mm = monthsInId[date.getMonth()]
   const yyyy = date.getFullYear()
   return `${dd} ${mm} ${yyyy}`
+}
+	return {
+		idFormat,
+		extFormat
+	};
+}
+
+export function formatDateYyyyMmDd(isoDateString: string): string {
+	const date = new Date(isoDateString);
+	const year = date.getFullYear();
+	const month = String(date.getMonth() + 1).padStart(2, '0');
+	const day = String(date.getDate()).padStart(2, '0');
+	return `${year}-${month}-${day}`;
 }