v3.0.1, 改成tools调用方式

server/ai/client.js

@@ -19,10 +19,11 @@ function getErrorMsg(status, data) {
   }
 }
 
-async function callDeepSeek(messages, userId, temperature = 0.1, jsonMode = true) {
+async function callDeepSeek(messages, userId, temperature = 0.1, jsonMode = true, tools) {
   console.log('调用 DeepSeek...');
   var body = { model: 'deepseek-v4-flash', messages: messages, temperature: temperature, stream: false, thinking: { type: 'disabled' } };
-  if (jsonMode) body.response_format = { type: 'json_object' };
+  if (tools && tools.length) body.tools = tools;
+  if (jsonMode && !(tools && tools.length)) body.response_format = { type: 'json_object' };
   if (userId) body.user_id = sanitizeUserId(userId);
   var res = await fetch('https://api.deepseek.com/chat/completions', {
     method: 'POST',
@@ -50,7 +51,8 @@ async function callDeepSeek(messages, userId, temperature = 0.1, jsonMode = true
   // 输入消息大小日志
   //var inputChars = JSON.stringify(messages).length;
   //console.log('输入大小: ' + inputChars + ' 字符, ' + messages.length + ' 条消息');
-  return data.choices[0].message.content;
+  // 返回整个 message 对象，可能包含 content 或 tool_calls（供上层决定走工具还是 JSON）
+  return data.choices[0].message;
 }
 
 module.exports = { callDeepSeek };