feat: 支持合同模板上传与对比记录持久化

fastapi_modules/fastapi_leaudit/services/documentService.py

@@ -3,6 +3,7 @@
 from abc import ABC, abstractmethod
 
 from fastapi_modules.fastapi_leaudit.domian.vo.documentVo import (
+    ContractTemplateUploadVO,
     DocumentDetailVO,
     DocumentListPageVO,
     DocumentStatusItemVO,
@@ -118,6 +119,19 @@ class IDocumentService(ABC):
         """为现有文档追加附件，并执行数据隔离校验。"""
         ...
 
+    @abstractmethod
+    async def UploadContractTemplate(
+        self,
+        CurrentUserId: int,
+        DocumentId: int,
+        FileName: str,
+        FileContent: bytes,
+        ContentType: str | None,
+        ComparisonId: int | None = None,
+    ) -> ContractTemplateUploadVO:
+        """为现有合同文档上传结构对比模板，并持久化记录。"""
+        ...
+
     @abstractmethod
     async def ListDocumentTypes(self, Ids: list[int] | None = None, EntryModuleId: int | None = None) -> list[DocumentTypeItemVO]:
         """获取文档类型列表。"""