debug: 添加itineraries调试日志

backend/app/service/BusinessTripService.php

@@ -166,6 +166,17 @@ class BusinessTripService
             }
 
             // 创建审批单
+            $itinerariesData = $businessTrip->itineraries->map(function ($item) {
+                return [
+                    'destination' => $item->destination,
+                    'start_date' => $item->start_date,
+                    'end_date' => $item->end_date,
+                    'estimated_cost' => $item->estimated_cost,
+                ];
+            })->toArray();
+
+            error_log("🔍 itineraries 数据: " . json_encode($itinerariesData));
+
             $approvalOrder = ApprovalOrder::create([
                 'business_type' => 'business_trip',
                 'business_id' => $businessTrip->id,
@@ -180,14 +191,7 @@ class BusinessTripService
                     'end_date' => $businessTrip->end_date,
                     'destination' => $businessTrip->destination,
                     'estimated_cost' => $businessTrip->estimated_cost,
-                    'itineraries' => $businessTrip->itineraries->map(function ($item) {
+                    'itineraries' => $itinerariesData,
-                        return [
-                            'destination' => $item->destination,
-                            'start_date' => $item->start_date,
-                            'end_date' => $item->end_date,
-                            'estimated_cost' => $item->estimated_cost,
-                        ];
-                    })->toArray(),
                     'approvers' => $approvers,
                     'cc_users' => $ccUsers,
                 ],