feat(admin): comma-grouped Latin amounts on the session payment step

Add an opt-in latin prop to PriceInput (en-US grouping, English digits) and
use it for the discount-value and payment-amount fields on PaymentStep, which
were raw number inputs. Amounts now show 3-digit comma grouping and Persian
digits typed are converted to English (via PriceInput's toEnglishDigits).

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

assets/admin/components/session/PaymentStep.tsx

@@ -9,6 +9,7 @@ import type { DiscountSuggestion } from '../../types';
 import type { SessionCardData } from '../SessionServiceCard';
 import SearchableSelect from '../ui/SearchableSelect';
 import PersianDateInput from '../ui/PersianDateInput';
+import PriceInput from '../ui/PriceInput';
 import { Step2PaymentCard, FilesServiceBalanceWallet, TrashRed } from '../icons/FilesServiceIcons';
 
 /** روش‌های پرداخت — همان چهار گزینه‌ی آکاردئون tauri Step2Payment. */
@@ -48,10 +49,10 @@ export default function PaymentStep({ recordUuid, session, walletBalance, onCont
   const sessionUuid = session.uuid;
 
   const [discountType, setDiscountType] = useState('');
-  const [discountValue, setDiscountValue] = useState('');
+  const [discountValue, setDiscountValue] = useState(0);
   const [paymentDate, setPaymentDate] = useState(todayISO());
   const [expanded, setExpanded] = useState<string | null>(null);
-  const [amount, setAmount] = useState('');
+  const [amount, setAmount] = useState(0);
 
   const invalidate = () => {
     qc.invalidateQueries({ queryKey: ['patient-sessions', recordUuid] });
@@ -67,7 +68,7 @@ export default function PaymentStep({ recordUuid, session, walletBalance, onCont
 
   const payMut = useMutation({
     mutationFn: (body: object) => api.post(`/api/v1/session/${sessionUuid}/payments`, body),
-    onSuccess: () => { invalidate(); setAmount(''); toast.success('پرداخت ثبت شد'); },
+    onSuccess: () => { invalidate(); setAmount(0); toast.success('پرداخت ثبت شد'); },
     onError: (e: Error) => toast.error(e.message),
   });
 
@@ -78,19 +79,19 @@ export default function PaymentStep({ recordUuid, session, walletBalance, onCont
   const suggestions: DiscountSuggestion[] = (suggestionsQ.data?.data as any)?.data ?? (suggestionsQ.data?.data as any) ?? [];
 
   const applyDiscount = () => {
-    if (!discountType || !discountValue) return;
-    discountMut.mutate({ discount_type: discountType, discount_value: Number(discountValue) });
+    if (!discountType || discountValue <= 0) return;
+    discountMut.mutate({ discount_type: discountType, discount_value: discountValue });
   };
   const applyRule = (ruleUuid: string) => {
     discountMut.mutate({ discount_rule_uuid: ruleUuid });
   };
   const removeDiscount = () => {
-    setDiscountType(''); setDiscountValue('');
+    setDiscountType(''); setDiscountValue(0);
     discountMut.mutate({ discount_rule_uuid: null });
   };
   const submitPayment = (method: string) => {
-    if (!amount) return;
-    payMut.mutate({ method, amount_rials: Number(amount), paid_at: isoToUnix(paymentDate) });
+    if (amount <= 0) return;
+    payMut.mutate({ method, amount_rials: amount, paid_at: isoToUnix(paymentDate) });
   };
 
   const finalPrice = session.final_price_rials ?? 0;
@@ -146,19 +147,17 @@ export default function PaymentStep({ recordUuid, session, walletBalance, onCont
               placeholder="مبلغ تخفیف"
             />
           </div>
-          <input
-            type="number"
-            min={0}
-            dir="ltr"
-            placeholder="مقدار تخفیف را وارد نمایید"
+          <PriceInput
+            latin
             value={discountValue}
-            onChange={(e) => setDiscountValue(e.target.value)}
+            onChange={setDiscountValue}
+            placeholder="مقدار تخفیف را وارد نمایید"
             style={{ flex: 1, minWidth: 0, height: 40, padding: '0 12px', fontSize: 13, border: 'none', outline: 'none', background: 'transparent', color: 'inherit' }}
           />
           <button
             type="button"
             onClick={applyDiscount}
-            disabled={discountMut.isPending || !discountType || !discountValue}
+            disabled={discountMut.isPending || !discountType || discountValue <= 0}
             style={{ height: 40, minWidth: 72, border: 'none', borderRadius: '0 4px 4px 0', background: '#E8EBFF', color: '#3B3F9F', fontSize: 13, fontWeight: 600, cursor: 'pointer' }}
           >
             ثبت
@@ -212,7 +211,7 @@ export default function PaymentStep({ recordUuid, session, walletBalance, onCont
               <button
                 type="button"
                 aria-expanded={open}
-                onClick={() => { setExpanded(open ? null : m.key); setAmount(''); }}
+                onClick={() => { setExpanded(open ? null : m.key); setAmount(0); }}
                 style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', width: '100%', padding: '14px 4px', background: 'transparent', border: 'none', cursor: 'pointer' }}
               >
                 <span className="dark:text-[#D7D8ED]" style={{ fontSize: 14, fontWeight: 600, color: '#111827' }}>{m.label}</span>
@@ -220,20 +219,18 @@ export default function PaymentStep({ recordUuid, session, walletBalance, onCont
               </button>
               {open && (
                 <div style={{ display: 'flex', gap: 8, padding: '0 4px 14px' }}>
-                  <input
-                    type="number"
-                    min={1}
-                    dir="ltr"
+                  <PriceInput
+                    latin
                     className="input"
                     placeholder="مبلغ (تومان)"
                     value={amount}
-                    onChange={(e) => setAmount(e.target.value)}
+                    onChange={setAmount}
                     style={{ flex: 1, height: 40 }}
                   />
                   <button
                     type="button"
                     onClick={() => submitPayment(m.key)}
-                    disabled={payMut.isPending || !amount}
+                    disabled={payMut.isPending || amount <= 0}
                     style={{ ...primaryBtn, height: 40, padding: '0 20px', borderRadius: 8 }}
                   >
                     ثبت پرداخت