合同管理接口文档：创建、更新、删除、查询

/**
 * 创建合同
 * 
 * @param contractRequest
 * @throws Exception
 */
public void createContract(ContractRequest contractRequest) throws Exception;

/**
 * 修订合同内容
 * 
 * @param contractRequest
 * @throws Exception
 */
public void updateContract(ContractRequest contractRequest) throws Exception;

/**
 * 删除合同
 * 
 * @param uuid
 * @throws Exception
 */
public void deleteContract(String uuid) throws Exception;

/**
 * 根据合同UUID查询合同信息
 * 
 * @param contractUuid
 * @return
 * @throws Exception
 */
public ContractResponse getContractByUuid(String contractUuid) throws Exception;

/**
 * 根据投资人UUID查询合同列表
 * 
 * @param investorUuid
 * @return
 * @throws Exception
 */
public List<ContractResponse> getContractListByInvestorUuid(String investorUuid) throws Exception;

/**
 * 获取投资人合同数量
 * 
 * @param investorUuid
 * @return
 * @throws Exception
 */
public Integer getContractCountByInvestorUuid(String investorUuid) throws Exception;

/**
 * 根据投资人UUID分页查询合同列表
 * 
 * @param investorUuid
 * @param page
 * @return
 * @throws Exception
 */
public Page<ContractResponse> getContractListByInvestorUuid(String investorUuid, Page<ContractResponse> page) throws Exception;

/**
 * 根据合同UUID查询合同订单
 * 
 * @param contractUuid
 * @return
 * @throws Exception
 */
public List<OrderResponse> getOrderListByContractUuid(String contractUuid) throws Exception;

/**
 * 根据合同UUID查询投资人信息
 * 
 * @param contractUuid
 * @return
 * @throws Exception
 */
public InvestorBaseAccountResponse getInvestorBaseAccountByContractUuid(String contractUuid) throws Exception;
}```