fix some extention bug

src/common/iran-time.util.ts

@@ -1,6 +1,6 @@
 /** Shared Iran timezone helpers for SuperAdmin API. */
 
-import { toGregorian, jalaaliMonthLength } from 'jalaali-js';
+import { toGregorian, jalaaliMonthLength, toJalaali } from 'jalaali-js';
 
 export const IRAN_TZ = 'Asia/Tehran';
 
@@ -45,23 +45,9 @@ export type IranJalaliYmd = { year: number; month: number; day: number };
 
 /** Jalali Y/M/D for a Date in Asia/Tehran. */
 export function iranJalaliParts(date: Date): IranJalaliYmd {
-  const parts = new Intl.DateTimeFormat('en-u-ca-persian', {
-    timeZone: IRAN_TZ,
-    year: 'numeric',
-    month: 'numeric',
-    day: 'numeric',
-  }).formatToParts(date);
-
-  const num = (type: Intl.DateTimeFormatPartTypes) => {
-    const raw = parts.find((p) => p.type === type)?.value ?? '';
-    const n = Number(raw);
-    if (!Number.isFinite(n)) {
-      throw new Error(`Cannot read Jalali ${type} from ${date.toISOString()}`);
-    }
-    return n;
-  };
-
-  return { year: num('year'), month: num('month'), day: num('day') };
+  const [gy, gm, gd] = iranYmd(date).split('-').map(Number);
+  const { jy, jm, jd } = toJalaali(gy, gm, gd);
+  return { year: jy, month: jm, day: jd };
 }
 
 /** Noon Iran (+03:30) for a Jalali calendar day. */