更新功能

backend/app/services/attachments.py

@@ -42,7 +42,16 @@ def extract_document_text(data: bytes) -> str:
     return text[:MAX_EXTRACTED_CHARS]
 
 
-def attachment_record(conversation_id: str, filename: str, mime: str, relative_path: str, data: bytes, kind: str, extracted_path: str = "") -> dict[str, object]:
+def attachment_record(
+    conversation_id: str,
+    filename: str,
+    mime: str,
+    relative_path: str,
+    data: bytes,
+    kind: str,
+    extracted_path: str = "",
+    metadata: dict[str, object] | None = None,
+) -> dict[str, object]:
     return {
         "id": Path(relative_path).stem,
         "conversation_id": conversation_id,
@@ -53,4 +62,5 @@ def attachment_record(conversation_id: str, filename: str, mime: str, relative_p
         "size": len(data),
         "sha256": hashlib.sha256(data).hexdigest(),
         "extracted_path": extracted_path,
+        **(metadata or {}),
     }