feat: 添加VendorGroupRequireFileTypeVo及相关服务功能

refactor: 重构多个服务类和方法，优化代码结构
fix: 修复PermissionVo中code字段更名为key的问题
docs: 更新create_vo.md文档，添加新创建的VO记录
perf: 优化WebSocketClientService中的session关闭逻辑
style: 清理无用导入和注释，统一代码格式

common/src/main/java/com/ecep/contract/vo/ContractPayPlanVo.java

@@ -10,8 +10,14 @@ import lombok.Data;
 @Data
 public class ContractPayPlanVo implements IdentityEntity, ContractBasedVo {
     private Integer id;
+    /**
+     * 关联的合同对象, Contract
+     */
     private Integer contractId;
+
+
     private Integer refId;
+    private float payRatio;
     private Double payCurrency;
     private LocalDate payDate;
     private LocalDateTime updateDate;