Step 4：评论 / 附件 / 审计日志

backend/app/schemas/attachment.py

@@ -0,0 +1,14 @@
+import uuid
+from datetime import datetime
+
+from pydantic import BaseModel, ConfigDict
+
+
+class AttachmentRead(BaseModel):
+    id: uuid.UUID
+    filename: str
+    file_size: int
+    uploaded_by: uuid.UUID
+    uploaded_at: datetime
+
+    model_config = ConfigDict(from_attributes=True)