导入方式修改

backend/app/core/__init__.py

@@ -30,7 +30,7 @@ from .visualization import (
 # 为了兼容性，添加 classify_intent 函数
 def classify_intent(user_input: str, context: str = None):
     """兼容旧代码的 classify_intent 函数"""
-    from app.core.intent_classifier import get_intent_classifier
+    from backend.app.core.intent_classifier import get_intent_classifier
     import asyncio
     classifier = get_intent_classifier()
     try:

backend/app/core/intent.py

@@ -94,7 +94,7 @@ class ReactIntentReasoner:
     def _get_llm_service(self):
         """懒加载 LLM 服务（避免循环导入）"""
         if self._llm_service is None:
-            from app.model_services.chat_services import get_chat_service, get_small_llm_service
+            from backend.app.model_services.chat_services import get_chat_service, get_small_llm_service
             if self._use_small_llm:
                 self._llm_service = get_small_llm_service()
             else:

backend/app/core/web_search.py

@@ -89,7 +89,7 @@ class WebSearchTool:
     def _search_tavily(self, query: str, max_results: int) -> List[SearchResult]:
         """使用 Tavily API 搜索"""
         from tavily import TavilyClient
-        from app.config import TAVILY_API_KEY, TAVILY_MAX_RESULTS
+        from backend.app.config import TAVILY_API_KEY, TAVILY_MAX_RESULTS
 
         if not TAVILY_API_KEY:
             raise ValueError("TAVILY_API_KEY 未配置")