Update backend/data/litellm/config.yaml

backend/data/litellm/config.yaml

@@ -1,4 +1,6 @@
 general_settings: {}
-litellm_settings: {}
+litellm_settings:
+  success_callback: ["langfuse"]
+  failure_callback: ["langfuse"]
 model_list: []
 router_settings: {}