修改获取积分代码

tuoheng-api/src/main/java/com/tuoheng/api/service/points/receive/ReceivePonitsService.java

                 .eq(WestreamKnowUser::getKnowId, request.getKnowId())
                 .eq(WestreamKnowUser::getMark, MarkEnum.VALID.getCode()));
         if (ObjectUtil.isNotEmpty(westreamKnowUser)) {
-            return JsonResult.success("已经领取积分，不用重复领取");
+            return JsonResult.success("您已获得过积分了，仅能获取一次积分。");
         }
 
         WestreamUser westreamUser = westreamUserMapper.selectOne(new LambdaQueryWrapper<WestreamUser>()