修改

app/Service/AssetService.php

@@ -116,7 +116,7 @@ class AssetService extends Service
         $results = $query1->union($query2)->get();
         $return = $results->toArray();
 
-        return [true, 'asset' => $return];
+        return [true, ['asset' => $return]];
     }
 
     public function AssetRule($data, $is_check = true){