Add JSON files for Payment Gateway Interface and API documentation updates

- Created a new JSON file for the PaymentGatewayInterface.php, detailing its methods and return types.
- Added a JSON file for payment.md, documenting various API endpoints and their parameters, responses, and errors.
- Introduced a JSON file for fix-admin-modal-and-calendar.md, outlining issues and solutions related to admin modal and calendar functionalities.

assets/admin/pages/RepresentationProfilePage.tsx

@@ -146,7 +146,7 @@ export default function RepresentationProfilePage() {
         </div>
 
         <div style={{ overflowX: 'auto' }}>
-          <table className="tbl" style={{ width: '100%' }}>
+          <div className="table-wrap"><table className="tbl" style={{ width: '100%' }}>
             <thead><tr><th>شماره شبا</th><th>بانک</th><th>صاحب حساب</th><th>وضعیت</th><th></th></tr></thead>
             <tbody>
               {ibans.length === 0 && (
@@ -166,7 +166,7 @@ export default function RepresentationProfilePage() {
                 </tr>
               ))}
             </tbody>
-          </table>
+          </table></div>
         </div>
 
         {!verified && (