导入方式修改

backend/app/main_graph/nodes/fast_paths.py

@@ -4,6 +4,7 @@
 """
 
 from typing import Optional
+from langchain_core.runnables.config import RunnableConfig
 
 from ..state import MainGraphState
 from ...logger import info, debug
@@ -28,7 +29,7 @@ CHITCHAT_KEYWORDS = {
 
 
 # ========== 闲聊节点 ==========
-async def fast_chitchat_node(state: MainGraphState, config: Optional[dict] = None) -> MainGraphState:
+async def fast_chitchat_node(state: MainGraphState, config: Optional[RunnableConfig] = None) -> MainGraphState:
     """快速闲聊节点"""
     state.current_phase = "fast_chitchat"
     query = state.user_query or ""
@@ -69,14 +70,14 @@ def _match_chitchat_template(query: str) -> str:
 
 
 # ========== 快速 RAG 节点 ==========
-async def fast_rag_node(state: MainGraphState, config: Optional[dict] = None) -> MainGraphState:
+async def fast_rag_node(state: MainGraphState, config: Optional[RunnableConfig] = None) -> MainGraphState:
     """快速 RAG 节点：只负责 RAG 检索，然后交给 llm_call 生成回答"""
     state.current_phase = "fast_rag"
     query = state.user_query or ""
     info(f"[Fast RAG] 开始处理: {query[:50]}")
 
     # 获取 RAG 工具
-    from app.main_graph.utils.rag_initializer import get_rag_tool
+    from backend.app.main_graph.utils.rag_initializer import get_rag_tool
     rag_tool = get_rag_tool()
     info(f"[Fast RAG] 获取到 rag_tool: {rag_tool is not None}")
 
@@ -134,7 +135,7 @@ async def _generate_fast_answer(state: MainGraphState, query: str) -> MainGraphS
 请给出简洁、准确的回答："""
 
         # 使用流式输出
-        from app.main_graph.config import get_stream_writer
+        from backend.app.main_graph.config import get_stream_writer
         writer = get_stream_writer()
 
         full_content = ""
@@ -164,7 +165,7 @@ async def _generate_fast_answer(state: MainGraphState, query: str) -> MainGraphS
 
 
 # ========== 快速工具节点 ==========
-async def fast_tool_node(state: MainGraphState, config: Optional[dict] = None) -> MainGraphState:
+async def fast_tool_node(state: MainGraphState, config: Optional[RunnableConfig] = None) -> MainGraphState:
     """快速工具节点"""
     state.current_phase = "fast_tool"