v3.1 + 批次0: 智能回复重构基线 - ApprovalMatcher + 关键词降级 + 文档速修 + v4.0任务书面化

backend/app/services/admin_service.py

@@ -1489,6 +1489,7 @@ async def list_audit_conversations(
     keyword: Optional[str] = None,
     date_from: Optional[str] = None,
     date_to: Optional[str] = None,
+    is_archived: Optional[bool] = None,
     page: int = 1,
     page_size: int = 20,
 ) -> Dict[str, Any]:
@@ -1521,6 +1522,8 @@ async def list_audit_conversations(
             filters.append(Conversation.created_at < dt_to)
         except ValueError:
             pass
+    if is_archived is not None:
+        filters.append(Conversation.is_archived == is_archived)
 
     if filters:
         stmt = stmt.where(and_(*filters))