[FEAT] 銷售訂單管理：補齊欄位、即時搜尋、篩選與來源自動判定

app/Modules/Integration/Models/SalesOrder.php

@@ -11,9 +11,11 @@ class SalesOrder extends Model
 
     protected $fillable = [
         'external_order_id',
+        'name',
         'status',
         'payment_method',
         'total_amount',
+        'total_qty',
         'sold_at',
         'raw_payload',
         'source',
@@ -24,6 +26,7 @@ class SalesOrder extends Model
         'sold_at' => 'datetime',
         'raw_payload' => 'array',
         'total_amount' => 'decimal:4',
+        'total_qty' => 'decimal:4',
     ];
 
     public function items(): HasMany