refactor(vo): 重构VO对象结构，统一字段命名和接口实现

重构所有VO对象，统一字段命名规范，移除冗余字段，优化接口实现
新增Voable接口用于VO对象转换
调整BaseViewModel和ProjectBasedViewModel接口定义
更新相关服务和控制器以适应VO对象变更

client/src/main/java/com/ecep/contract/task/ContractRepairTask.java

@@ -2,11 +2,10 @@ package com.ecep.contract.task;
 
 import com.ecep.contract.MessageHolder;
 import com.ecep.contract.SpringApp;
-import com.ecep.contract.WebSocketClientService;
 import com.ecep.contract.WebSocketClientTasker;
-import com.ecep.contract.model.Contract;
+import com.ecep.contract.service.ContractService;
+import com.ecep.contract.vo.ContractVo;
 
-import com.fasterxml.jackson.core.JsonProcessingException;
 import lombok.Getter;
 import lombok.Setter;
 
@@ -16,7 +15,7 @@ import lombok.Setter;
 public class ContractRepairTask extends Tasker<Object> implements WebSocketClientTasker {
     @Getter
     @Setter
-    private Contract contract;
+    private ContractVo contract;
 
     @Getter
     boolean repaired = false;
@@ -42,10 +41,10 @@ public class ContractRepairTask extends Tasker<Object> implements WebSocketClien
         super.updateProgress(current, total);
     }
 
-
     @Override
     protected Object execute(MessageHolder holder) throws Exception {
-        updateTitle("修复合同 " + contract.toPrettyString());
+        ContractService contractService = SpringApp.getBean(ContractService.class);
+        updateTitle("修复合同 " + contractService.getStringConverter().toString(contract));
         return callRemoteTask(holder, getLocale(), contract.getId());
     }