Update server.js

server.js

@@ -30,7 +30,7 @@ async function gemini(sessionId, prompt) {
   const sessionFile = getSessionFile(sessionId, 'gemini');
   let history = [];
   if (fs.existsSync(sessionFile)) {
-    history = JSON.parse(fs.readFileSync(geminiTmpDir, 'utf8'));
+    history = JSON.parse(fs.readFileSync(sessionFile, 'utf8'));
   }
   history.push({ role: 'user', content: { parts: [{ text: prompt }] } });
 
@@ -53,7 +53,7 @@ async function deepseek(sessionId, prompt) {
   const sessionFile = getSessionFile(sessionId, 'deepseek');
   let history = [];
   if (fs.existsSync(sessionFile)) {
-    history = JSON.parse(fs.readFileSync(deepseekTmpDir, 'utf8'));
+    history = JSON.parse(fs.readFileSync(sessionId, 'utf8'));
   }
   history.push({ role: 'user', content: prompt });
 
@@ -73,7 +73,7 @@ async function qwen(sessionId, prompt) {
   const sessionFile = getSessionFile(sessionId, 'qwen');
   let history = [];
   if (fs.existsSync(sessionFile)) {
-    history = JSON.parse(fs.readFileSync(qwenTmpDir, 'utf8'));
+    history = JSON.parse(fs.readFileSync(sessionFile, 'utf8'));
   }
   history.push({ role: 'user', content: prompt });