更新v1.4版本，修复了一些已知问题

backend/services/conduct_service.py

@@ -115,8 +115,10 @@ class ConductService:
                 details.append({"student_id": student_id, "error": str(e)})
                 fail_count += 1
         
+        message = "操作成功" if fail_count == 0 else f"{success_count}人成功，{fail_count}人失败"
         return {
             "success": fail_count == 0,
+            "message": message,
             "success_count": success_count,
             "fail_count": fail_count,
             "details": details
@@ -278,7 +280,7 @@ class ConductService:
                 limit=page_size,
                 offset=offset
             )
-            total = len(await ConductModel.get_student_records(student_id, limit=10000))
+            total = await ConductModel.count_student_records(student_id)
         else:
             # 查看自己提交的记录
             records = await ConductModel.get_records_by_recorder(
@@ -286,7 +288,7 @@ class ConductService:
                 limit=page_size,
                 offset=offset
             )
-            total = len(await ConductModel.get_records_by_recorder(user_id, limit=10000))
+            total = await ConductModel.count_records_by_recorder(user_id)
         
         return {
             "records": records,