feat: implement useOverlayDismiss hook for consistent modal dismissal behavior

assets/admin/components/WalletTransactionModal.tsx

@@ -4,6 +4,7 @@ import { XMarkIcon } from '@heroicons/react/24/outline';
 import SearchableSelect from './ui/SearchableSelect';
 import { useBankAccounts, usePosDevices } from '../hooks/usePaymentMethods';
 import { formatRial, formatNumber, tomanToRial, digitsOnly } from '../lib/utils';
+import { useOverlayDismiss } from '../hooks/useOverlayDismiss';
 
 export type WalletMode = 'charge' | 'withdraw';
 
@@ -59,12 +60,7 @@ export default function WalletTransactionModal({ open, balanceRials, submitting,
     if (open) { setMode('charge'); setAmountToman(0); setMethodValue('cash'); setDescription(''); }
   }, [open]);
 
-  useEffect(() => {
-    if (!open) return;
-    const onKey = (e: KeyboardEvent) => { if (e.key === 'Escape') onClose(); };
-    document.addEventListener('keydown', onKey);
-    return () => document.removeEventListener('keydown', onKey);
-  }, [open, onClose]);
+  const dismiss = useOverlayDismiss(onClose, open);
 
   if (!open) return null;
 
@@ -103,8 +99,8 @@ export default function WalletTransactionModal({ open, balanceRials, submitting,
   };
 
   return createPortal(
-    <div className="overlay" onClick={onClose}>
-      <div className="modal" style={{ maxWidth: 560 }} onClick={(e) => e.stopPropagation()}>
+    <div className="overlay" {...dismiss}>
+      <div className="modal" style={{ maxWidth: 560 }}>
         <div className="modal-head">
           <h2>{isWithdraw ? 'برداشت از کیف پول' : 'شارژ کیف پول'}</h2>
           <button type="button" className="mini-btn" onClick={onClose}>