feat: 完善模板对比持久化与附件版本处理

fastapi_modules/fastapi_leaudit/services/crossReviewService.py

@@ -10,6 +10,7 @@ from fastapi_modules.fastapi_leaudit.domian.Dto.crossReviewDto import (
     CrossReviewTaskQueryDTO,
 )
 from fastapi_modules.fastapi_leaudit.domian.vo.crossReviewVo import (
+    CrossReviewTaskDocumentAppendVO,
     CrossReviewPendingVotesVO,
     CrossReviewPermissionVO,
     CrossReviewProposalCancelVO,
@@ -117,3 +118,15 @@ class ICrossReviewService(ABC):
     ) -> CrossReviewTaskDocumentUploadVO:
         """向交叉评查任务补传文档。"""
         ...
+
+    @abstractmethod
+    async def AppendTaskDocumentAttachments(
+        self,
+        CurrentUserId: int,
+        TaskId: int,
+        DocumentId: int,
+        Files: list[tuple[str, bytes, str | None]],
+        Remark: str | None = None,
+    ) -> CrossReviewTaskDocumentAppendVO:
+        """为交叉评查任务文档追加附件，并生成同版本链新版本。"""
+        ...