ref(dates): adjust date interface (#487)

Co-authored-by: HarshaVardhan <40317596+harshaktg@users.noreply.github.com>
Co-authored-by: James Garbutt <43081j@users.noreply.github.com>

Author: 3 people

.changeset/early-ads-tap.md

@@ -3,4 +3,4 @@
 "@clack/core": minor
 ---
 
-Adds `date` prompt with format support (YYYY/MM/DD, MM/DD/YYYY, DD/MM/YYYY).
+Adds `date` prompt with `format` support (YMD, MDY, DMY)

.changeset/tangy-mirrors-hug.md

@@ -4,9 +4,9 @@ import color from 'picocolors';
 async function main() {
 	const result = (await p.date({
 		message: color.magenta('Pick a date'),
-		format: 'YYYY/MM/DD',
-		minDate: new Date('2025-01-01'),
-		maxDate: new Date('2025-12-31'),
+		format: 'YMD',
+		minDate: new Date('2026-01-01'),
+		maxDate: new Date('2026-12-31'),
 	})) as Date;
 
 	if (p.isCancel(result)) {

examples/basic/date.ts

@@ -2,7 +2,7 @@ export type { AutocompleteOptions } from './prompts/autocomplete.js';
 export { default as AutocompletePrompt } from './prompts/autocomplete.js';
 export type { ConfirmOptions } from './prompts/confirm.js';
 export { default as ConfirmPrompt } from './prompts/confirm.js';
-export type { DateFormatConfig, DateOptions, DateParts } from './prompts/date.js';
+export type { DateFormat, DateOptions, DateParts } from './prompts/date.js';
 export { default as DatePrompt } from './prompts/date.js';
 export type { GroupMultiSelectOptions } from './prompts/group-multiselect.js';
 export { default as GroupMultiSelectPrompt } from './prompts/group-multiselect.js';