✨ feat(openaiChat): add support for multi-modal messages in AI chat function.

modules/openai/openaiChat.js

@@ -22,18 +22,23 @@ class OpenaiChat {
    * @param model 模型
    * @param temperature 温度
    * @param customPrompt 提示词
+   * @param messages 多模态消息数组
    * @returns {Promise<{success: boolean, aiResponse: string}|{}>}
    */
-  async callAi({ prompt, chatHistory = [], model, temperature, customPrompt }) {
+  async callAi({ prompt, chatHistory = [], model, temperature, customPrompt, messages }) {
     if (!this.openai) {
       logger.error('[crystelf-ai] ai未初始化..');
       return { success: false };
     }
+    let finalMessages;
+    if (messages && messages.length > 0) {
+      finalMessages = messages;
+    } else {
       let systemMessage = {
         role: 'system',
         content: customPrompt || '',
       };
-    const messages = [
+      finalMessages = [
         systemMessage,
         ...chatHistory,
         {
@@ -41,15 +46,16 @@ class OpenaiChat {
           content: prompt,
         },
       ];
+    }
 
     try {
      // logger.info("[DEBUG] 请求体:", {
         //model: model,
-       // messages,
+       // messages: finalMessages,
       //});
 
       const completion = await this.openai.chat.completions.create({
-        messages: messages,
+        messages: finalMessages,
         model: model,
         temperature: temperature,
         frequency_penalty: 0.2,