feat(app-version): 加批量创建接口

fruitshorts-module-system/src/main/java/com/fruitshorts/system/service/AppVersionService.java

@@ -64,6 +64,30 @@ public class AppVersionService {
         return v.getId();
     }
 
+    /** 批量新建：一次事务全插或全回滚。 */
+    @Transactional(rollbackFor = Exception.class)
+    public List<Long> batchCreate(List<AppVersionSaveReqVO> reqs) {
+        if (reqs == null || reqs.isEmpty()) {
+            throw new ServiceException(ErrorCode.BAD_REQUEST, "请至少传一条");
+        }
+        if (reqs.size() > 16) {
+            throw new ServiceException(ErrorCode.BAD_REQUEST, "单次不超过 16 条");
+        }
+        LocalDateTime now = LocalDateTime.now();
+        List<Long> ids = new java.util.ArrayList<>();
+        for (AppVersionSaveReqVO req : reqs) {
+            String platform = normalizePlatform(req.getPlatform());
+            checkDuplicate(platform, req.getVersionCode(), null);
+            AppVersion v = new AppVersion();
+            applyFields(v, req, platform);
+            v.setStatus(1);
+            v.setReleasedAt(now);
+            versionMapper.insert(v);
+            ids.add(v.getId());
+        }
+        return ids;
+    }
+
     @Transactional(rollbackFor = Exception.class)
     public void update(Long id, AppVersionSaveReqVO req) {
         String platform = normalizePlatform(req.getPlatform());