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/RepresentationFinancePage.tsx

@@ -104,7 +104,7 @@ export default function RepresentationFinancePage() {
       </div>
 
       {/* کارت‌های خلاصه */}
-      <div className="stat-grid" style={{ gridTemplateColumns: 'repeat(4, 1fr)', marginBottom: 'var(--gap)' }}>
+      <div className="stat-grid" style={{ marginBottom: 'var(--gap)' }}>
         {cards.map(c => (
           <div key={c.label} className="stat">
             <div className="ico" style={{ background: c.bg, color: c.color }}>
@@ -129,7 +129,7 @@ export default function RepresentationFinancePage() {
         </div>
 
         <div style={{ overflowX: 'auto' }}>
-          <table className="tbl tbl-zebra" style={{ width: '100%', minWidth: 720 }}>
+          <div className="table-wrap"><table className="tbl tbl-zebra" style={{ width: '100%', minWidth: 720 }}>
             <thead>
               <tr>
                 <th>پزشک</th>
@@ -174,7 +174,7 @@ export default function RepresentationFinancePage() {
                 </tr>
               ))}
             </tbody>
-          </table>
+          </table></div>
         </div>
       </div>