- 补全 /mp/transport/flight 3 个查询接口(by-airport/by-city) - 补全 /mp/transport/train 4 个查询接口(by-station/by-city/by-train-no-stations) - 修正字段名:scheduledDepartTime/flightStatus → planDepartTime/status - 按 MpFlightInfoVO / MpTrainInfoVO 实际字段列完整(22+14 个) - 标注哪些字段仅在特定查询下返回(stops / departStatus) - 补边界行为(空结果/上游异常/日期校验)