Function formatDateForComparison

formatDateForComparison(date: Date): { palindromeTruncated: string }
Creates a standardized date string for comparison purposes

Converts a Date object to an ISO 8601 date string (YYYY-MM-DD format) suitable for string-based date comparisons and sorting.
Parameters
- date: Date
  The Date object to convert
Returns { palindromeTruncated: string }
Object with palindromeTruncated property containing YYYY-MM-DD string
Example
```
const dateString = formatDateForComparison(new Date('2025-09-29T14:30:00'));
// { palindromeTruncated: '2025-09-29' }

// Useful for comparisons
const date1 = formatDateForComparison(new Date('2025-09-29'));
const date2 = formatDateForComparison(new Date('2025-09-30'));
if (date1.palindromeTruncated < date2.palindromeTruncated) {
  console.log('date1 is earlier');
}
```
- Defined in date/formatDateForComparison.ts:25