fix: 添加缺失的 buildSeatSpecMap() 调用

shopxo/app/plugins/vr_ticket/service/SeatSkuService.php

@@ -448,6 +448,9 @@ class SeatSkuService extends BaseService
             }
         }
 
+        // ========== 构建 seatSpecMap ==========
+        $seatSpecMap = self::buildSeatSpecMap($goodsId, $seatTemplate);
+
         // ========== 构建场次列表（goods_spec_data）==========
         $sessions = $config['sessions'] ?? [];
         $goodsSpecData = [];