refactor(hjc): 发布时间/投标截止与开售/截止同义，仅保留 tenderOnsaleTime/tenderOffsaleTime 映射入库

- 撤销 HjcOneStopProjectPush 新增的 publishTime/deadlineTime 字段
- upsert 时 publishTime=tenderOnsaleTime, deadlineTime=tenderOffsaleTime（同一语义直接映射）

src/main/java/com/gxwebsoft/hjc/dto/HjcOneStopProjectPush.java

@@ -38,12 +38,6 @@ public class HjcOneStopProjectPush {
     @Schema(description = "截止时间/停售时间，yyyy-MM-dd HH:mm:ss")
     private String tenderOffsaleTime;
 
-    @Schema(description = "发布时间（可选，未传则取开售时间 tenderOnsaleTime 兜底）")
-    private String publishTime;
-
-    @Schema(description = "投标截止时间（可选，未传则取截止时间 tenderOffsaleTime 兜底）")
-    private String deadlineTime;
-
     @Schema(description = "公告标题")
     private String bulletinName;
 

src/main/java/com/gxwebsoft/hjc/service/impl/HjcBizServiceImpl.java

@@ -82,9 +82,9 @@ public class HjcBizServiceImpl implements HjcBizService {
         project.setTenderFile(push.getFiles());
         project.setOnsaleTime(parseDateTime(push.getTenderOnsaleTime()));
         project.setOffsaleTime(parseDateTime(push.getTenderOffsaleTime()));
-        // 发布时间/投标截止：一站式推送未单独下发时取「开售时间/截止时间」兜底；显式下发则优先
-        project.setPublishTime(parseDateTime(firstNonBlank(push.getPublishTime(), push.getTenderOnsaleTime())));
-        project.setDeadlineTime(parseDateTime(firstNonBlank(push.getDeadlineTime(), push.getTenderOffsaleTime())));
+        // 发布时间=开售时间、投标截止=截止时间（同一语义，直接映射）
+        project.setPublishTime(parseDateTime(push.getTenderOnsaleTime()));
+        project.setDeadlineTime(parseDateTime(push.getTenderOffsaleTime()));
         project.setSellingMethod(push.getSellingMethod());
         project.setNeedSell(push.getNeedSellTender());
         project.setDataSource("PUSH");
@@ -251,10 +251,6 @@ public class HjcBizServiceImpl implements HjcBizService {
         }
     }
 
-    private String firstNonBlank(String a, String b) {
-        return StrUtil.isNotBlank(a) ? a : b;
-    }
-
     private String limitStr(String s, int max) {
         if (s == null) {
             return null;