feat: 添加混合 Agent 路由架构

backend/app/agent/service.py

@@ -10,6 +10,7 @@ from ..graph.graph_builder import GraphBuilder, GraphContext
 from ..graph.graph_tools import AVAILABLE_TOOLS, TOOLS_BY_NAME
 from ..model_services.chat_services import get_all_chat_services, LocalVLLMChatProvider
 from .rag_initializer import init_rag_tool
+from .intent_classifier import get_intent_classifier
 from ..logger import info, warning
 
 class AIAgentService:
@@ -18,6 +19,8 @@ class AIAgentService:
         self.graphs = {}
         self.tools = AVAILABLE_TOOLS.copy()
         self.tools_by_name = TOOLS_BY_NAME.copy()
+        # 添加：意图分类器
+        self.intent_classifier = get_intent_classifier()
 
     async def initialize(self):
         # 1. 初始化 RAG 工具（如果需要）