refactor(projects): 彻底删除 BizProject.execOrgName (废弃 @Deprecated 字段)

无外部引用 (前端/Mapper 已迁移完成), 直接清理避免 API 表面残留旧字段

ry-api/ruoyi-business/src/main/java/com/ruoyi/business/domain/BizProject.java

@@ -56,9 +56,6 @@ public class BizProject extends BaseEntity {
     private String sponsorOrgName;
     /** 支持单位筛选 (sys_user.user_id 列表, IN 查询, 多选 select 透传) */
     private List<Long> sponsorAdminUserIds;
-    /** 服务机构名称 (旧 LIKE 查询条件, 已废弃, 新查询走 execAdminUserIds 精确 IN, 保留字段以兼容老 API 调用) */
-    @Deprecated
-    private String execOrgName;
     /** 服务机构名称列表, 多个用英文逗号连接 (GROUP_CONCAT 派生, 不入库, 仅展示) */
     private String execOrgNames;
     /** 服务机构筛选 (biz_project_assign.exec_user_id 列表, IN 查询, 多选 select 透传) */
@@ -171,8 +168,6 @@ public class BizProject extends BaseEntity {
     public void setSponsorOrgName(String sponsorOrgName) { this.sponsorOrgName = sponsorOrgName; }
     public List<Long> getSponsorAdminUserIds() { return sponsorAdminUserIds; }
     public void setSponsorAdminUserIds(List<Long> sponsorAdminUserIds) { this.sponsorAdminUserIds = sponsorAdminUserIds; }
-    public String getExecOrgName() { return execOrgName; }
-    public void setExecOrgName(String execOrgName) { this.execOrgName = execOrgName; }
     public String getExecOrgNames() { return execOrgNames; }
     public void setExecOrgNames(String execOrgNames) { this.execOrgNames = execOrgNames; }
     public List<Long> getExecAdminUserIds() { return execAdminUserIds; }