feat(admin): force Latin digits in numeric fields globally

- Add a numeric prop to the base Input component that sets inputMode,
  dir=ltr, lang=en and normalizes Persian/Arabic digits to Latin via the
  shared toEnglishDigits on every change.
- Dedupe digit conversion: PriceInput now uses toEnglishDigits instead of
  its local map; AppointmentsPage mobile handler uses sanitizeMobileInput.
- Fix raw national-code / mobile inputs in NewAppointmentModal and
  NewAppointmentDrawer that stripped Persian digits without converting.
- Cover the numeric Input behaviour with unit tests.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

assets/admin/pages/AppointmentsPage.tsx

@@ -9,7 +9,7 @@ import { toast } from 'sonner';
 import { api } from '../lib/api';
 import type { PaginatedResponse, ApiResponse } from '../lib/api';
 import type { Appointment } from '../types';
-import { formatDate, toGregorianDate, formatTime } from '../lib/utils';
+import { formatDate, toGregorianDate, formatTime, toEnglishDigits, sanitizeMobileInput } from '../lib/utils';
 import { useAuthStore } from '../stores/authStore';
 import Pagination from '../components/ui/Pagination';
 import AppointmentFiltersModal, { applyAppointmentFilters, EMPTY_FILTERS } from '../components/AppointmentFiltersModal';
@@ -173,12 +173,7 @@ export function NewAppointmentModal({
   // تغییر موبایل نتیجه‌ی جستجوی قبلی را باطل می‌کند تا کاربر دوباره جستجو کند.
   function onMobileChange(v: string) {
     // ارقام فارسی/عربی → انگلیسی، فقط رقم، حداکثر ۱۱ رقم (کیبورد فارسی هم پذیرفته می‌شود).
-    const normalized = v
-      .replace(/[۰-۹]/g, d => String('۰۱۲۳۴۵۶۷۸۹'.indexOf(d)))
-      .replace(/[٠-٩]/g, d => String('٠١٢٣٤٥٦٧٨٩'.indexOf(d)))
-      .replace(/\D/g, '')
-      .slice(0, 11);
-    setMobile(normalized);
+    setMobile(sanitizeMobileInput(v));
     if (lookup !== null) { setLookup(null); setPatientName(''); setNationalCode(''); }
   }
 
@@ -265,9 +260,10 @@ export function NewAppointmentModal({
               <input
                 type="text"
                 inputMode="numeric"
+                lang="en"
                 maxLength={10}
                 value={nationalCode}
-                onChange={e => setNationalCode(e.target.value.replace(/\D/g, '').slice(0, 10))}
+                onChange={e => setNationalCode(toEnglishDigits(e.target.value).replace(/\D/g, '').slice(0, 10))}
                 placeholder="کد ملی ۱۰ رقمی"
                 style={{ ...inputSx, direction: 'ltr' }}
               />