feat: 支持Matrix access_token登录，配置AI模型接口

services/ai_service.py

@@ -4,10 +4,28 @@ AI服务 - 调用大模型API
 import httpx
 from typing import List, Dict, Optional
 import json
+import logging
+
+logger = logging.getLogger(__name__)
+
+# 默认配置
+DEFAULT_API_BASE = "http://192.168.2.17:19007/v1"
+DEFAULT_API_KEY = "xxxx"
+DEFAULT_MODEL = "auto"
 
 
 class AIService:
-    def __init__(self, api_base: str = "http://192.168.2.17:19007/v1", api_key: str = "sk-local", model: str = "qwen3.5-4b"):
+    def __init__(self, api_base: str = None, api_key: str = None, model: str = None):
+        self.api_base = api_base or DEFAULT_API_BASE
+        self.api_key = api_key or DEFAULT_API_KEY
+        self.model = model or DEFAULT_MODEL
+    
+    def update_config(self, api_base: str, api_key: str, model: str):
+        """更新配置"""
+        self.api_base = api_base
+        self.api_key = api_key
+        self.model = model
+        logger.info(f"AI配置已更新: {api_base}, model={model}")
         self.api_base = api_base
         self.api_key = api_key
         self.model = model