feat: refactor LLM API handling, add tests for key rotation and update package files

app/llm.js

@@ -1,9 +1,6 @@
 import axios from 'axios';
-import https from 'https';
 import { getLLMConfig } from './config.js';
 
-const httpsAgent = new https.Agent({ rejectUnauthorized: false });
-
 export async function chat(systemPrompt, userContent) {
   const { provider, apiKeys, baseURL, model } = getLLMConfig();
   if (!provider) throw new Error('未設定任何 LLM API Key');
@@ -15,12 +12,12 @@ export async function chat(systemPrompt, userContent) {
 
   let lastError;
   for (let i = 0; i < apiKeys.length; i++) {
-    headers['Authorization'] = `Bearer ${apiKeys[i]}`;
+    if (provider !== 'ollama') headers['Authorization'] = `Bearer ${apiKeys[i]}`;
     try {
       const resp = await axios.post(
         `${baseURL.replace(/\/$/, '')}/chat/completions`,
         { model, messages: [{ role: 'system', content: systemPrompt }, { role: 'user', content: userContent }], temperature: 0.2 },
-        { headers, timeout: 120000, httpsAgent }
+        { headers, timeout: 30000 }
       );
       return resp.data.choices[0].message.content;
     } catch (e) {