feat(accounting): add Shayegan as fixed boursecu provider

Wire outbound Invoice/Document sync after confirmed ops, store sync status with timeout lock, and keep SQL credentials out of frontend responses.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Http/Controllers/Single/SingleOrderController.php

@@ -2362,6 +2362,14 @@ class SingleOrderController extends Controller
             }
         }
 
+        if ($config->isShayeganAccounting()) {
+            try {
+                $data['shayegan'] = app(\App\Http\Controllers\Admin\ShayeganController::class)->storeTrade($data);
+            } catch (\Throwable $e) {
+                report($e);
+            }
+        }
+
         if (isset($data['order'])) {
             try {
                 app(\App\Services\ColleagueAccountingService::class)->recordCoveredTrade($data);