{"buyerRequestContract":{"fields":{"required":6,"total":7},"mode":"mock_preview","objects":["BuyerCompany","BuyerContact","BuyerDemand"],"protectedBoundary":"官网表单只能进入买家对象层，不直接触发报价、发信、结账或外部系统写入。","route":"/api/mock/buyer-request"},"contract":{"input":["company","companyType","country","email","product","quantity","note"],"outputObjects":["BuyerCompany","BuyerContact","BuyerDemand"]},"externalCalls":[],"mode":"mock_preview","persisted":false,"summary":"买家需求入口的本地预览合同，不会写入数据库或调用外部系统。"}