添加rag置信度判断

backend/app/main_graph/utils/rag_initializer.py

@@ -2,7 +2,7 @@
 from ...rag.tools import create_rag_tool
 from ...rag.retriever import create_parent_hybrid_retriever
 from ...model_services import get_embedding_service
-from ...logger import info, warning
+from backend.app.logger import info, warning
 import sys
 
 # 全局 RAG 工具