feat(rag): add temporary chat attachments

fastapi_modules/fastapi_leaudit/domian/Dto/ragChatDto.py

@@ -5,6 +5,8 @@ class RagChatSendMessageDTO(BaseModel):
     query: str = Field(..., min_length=1, description="用户问题")
     conversationId: str | None = Field(None, description="会话ID")
     appId: int | None = Field(None, description="聊天应用ID")
+    attachmentId: str | None = Field(None, description="临时聊天附件ID")
+    attachmentIds: list[str] = Field(default_factory=list, description="临时聊天附件ID列表")
 
 
 class RagConversationRenameDTO(BaseModel):

fastapi_modules/fastapi_leaudit/domian/vo/ragChatAttachmentVo.py

@@ -0,0 +1,19 @@
+from pydantic import BaseModel, Field
+
+
+class RagChatAttachmentVO(BaseModel):
+    attachmentId: str = Field(..., description="临时附件ID")
+    conversationId: str = Field(..., description="会话ID")
+    fileName: str = Field(..., description="原始文件名")
+    contentType: str = Field("", description="文件 MIME 类型")
+    fileSize: int = Field(0, description="文件大小")
+    indexingStatus: str = Field("waiting", description="索引状态")
+    indexingError: str | None = Field(None, description="索引错误")
+    chunkCount: int = Field(0, description="分段数量")
+    collectionName: str = Field("", description="临时向量集合名")
+    expiresAt: int = Field(0, description="过期时间戳")
+    createdAt: int = Field(0, description="创建时间戳")
+
+
+class RagChatAttachmentDeleteVO(BaseModel):
+    result: str = Field("success")

fastapi_modules/fastapi_leaudit/domian/vo/ragChatVo.py

@@ -36,6 +36,7 @@ class RagMessageItemVO(BaseModel):
     conversationId: str = Field(...)
     query: str = Field(...)
     answer: str = Field(...)
+    messageFiles: list[dict] = Field(default_factory=list)
     feedback: dict | None = Field(None)
     retrieverResources: list[dict] | None = Field(None)
     suggestedQuestions: list[str] = Field(default_factory=list)