Function formatDollars

apps/web/src/lib/utils.ts:72–79

(amount: number)

 * True when `value` is a bare calendar-date string of the form "YYYY-MM-DD".
 *
 * Snowflake date-granularity buckets are serialized as date-only strings
 * representing a UTC calendar day. `new Date("YYYY-MM-DD")` parses them as
 * UTC midnight, so downstream `toLocaleDateString()` would shift the displayed
 * day into the viewer's local zone. Callers that render these buckets should
 * detect this shape and format with `timeZone: 'UTC'`.
 */
export function isDateOnlyString(value: unknown): value is string {
  return typeof value === 'string' && DATE_ONLY_RE.test(value);
}

export function formatIsoDateString_UsaDateOnlyFormat(dateString: string | Date | null): string {