refactor(oa): 将签约公司字段类型从 String 改为 Integer

- 在 SysOaProject、SysOaProjectBo、SysOaProjectVo 中将 signingCompany 字段类型从 String 改为 Integer
- 更新 SysOaProjectServiceImpl 中的相关查询条件
-此修改可能会影响前端界面展示，需同步更新前端相关代码

ruoyi-oa/src/main/java/com/ruoyi/oa/domain/SysOaProject.java

@@ -154,5 +154,5 @@ public class SysOaProject extends BaseEntity {
      */
     private String projectCode;
     //签约公司
-    private String signingCompany;
+    private Integer signingCompany;
 }

ruoyi-oa/src/main/java/com/ruoyi/oa/domain/bo/SysOaProjectBo.java

@@ -3,6 +3,7 @@ package com.ruoyi.oa.domain.bo;
 import com.alibaba.excel.annotation.ExcelProperty;
 import com.ruoyi.common.core.validate.AddGroup;
 import com.ruoyi.common.core.validate.EditGroup;
+import liquibase.pro.packaged.I;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 import javax.validation.constraints.*;
@@ -189,6 +190,6 @@ public class SysOaProjectBo extends BaseEntity {
 
     private String status;
     //签约公司
-    private String signingCompany;
+    private Integer signingCompany;
 }
 

ruoyi-oa/src/main/java/com/ruoyi/oa/domain/vo/SysOaProjectVo.java

@@ -256,6 +256,6 @@ public class SysOaProjectVo {
      */
     private String status;
     //签约公司
-    private String signingCompany;
+    private Integer signingCompany;
 
 }