fix: keep birthdays and show Shamsi dates

Imported customers keep their birthday, and assistant text plus remaining calendars use the Jalali date.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/web/src/components/AskMentoPanel.vue

@@ -3,6 +3,7 @@ import { ref } from 'vue';
 import { RouterLink } from 'vue-router';
 import axios from 'axios';
 import { api } from '@/lib/api';
+import { rewriteGregorianDates } from '@/lib/jalali';
 import UiIcon from '@/components/UiIcon.vue';
 import { brand, type AskMentoResponse, type AskMentoSourceDto } from '@mento/shared';
 
@@ -43,7 +44,7 @@ async function submit() {
       personId: props.personId || undefined,
       chatContext: props.chatContext?.trim() || undefined,
     });
-    result.value = data;
+    result.value = { ...data, answer: rewriteGregorianDates(data.answer) };
   } catch (e) {
     if (axios.isAxiosError(e)) {
       const msg = (e.response?.data as { message?: string | string[] })?.message;