fix: память только в браузере, сервер ничего не хранит

public/index.html

@@ -52,7 +52,7 @@
 
     let mediaRecorder, chunks = [], userBlob = null;
     let isRecording = false, micAnalyser = null, micAnimId = null;
-    let audioContext = null, sessionSid = null;
+    let audioContext = null, chatHistory = [];
     let thinkStart = 0, thinkTimer = null;
 
     // История — массив {q, a, time}
@@ -191,13 +191,15 @@
         const cRes = await fetch('/api/chat', {
           method: 'POST',
           headers: { 'Content-Type': 'application/json' },
-          body: JSON.stringify({ model: 'gpt-oss-120b', message: text, sid: sessionSid }),
+          body: JSON.stringify({ model: 'gpt-oss-120b', message: text, history: chatHistory }),
           signal: (() => { const a = new AbortController(); setTimeout(() => a.abort(), 120000); return a.signal; })(),
         });
         stopThinkTimer();
         const cData = await cRes.json();
-        if (cData.sid) sessionSid = cData.sid;
         const resp = cData.response || cData.error || 'Ошибка';
+        chatHistory.push({ role: 'user', content: text });
+        chatHistory.push({ role: 'assistant', content: resp });
+        if (chatHistory.length > 40) chatHistory = chatHistory.slice(-40);
         chat.innerHTML += '<div class="bot">🤖 ' + fmt(resp) + '</div>';
         chat.scrollTop = chat.scrollHeight;
         setStatus('✅ Готово — ' + ((Date.now() - thinkStart) / 1000).toFixed(1) + 'с');
@@ -223,9 +225,8 @@
     }
     function stopThinkTimer() { if (thinkTimer) { clearInterval(thinkTimer); thinkTimer = null; } }
 
-    document.getElementById('btnReset').onclick = async () => {
-      await fetch('/api/reset', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ sid: sessionSid }) });
-      sessionSid = null; chat.innerHTML = ''; setStatus('🧹 Очищено');
+    document.getElementById('btnReset').onclick = () => {
+      chatHistory = []; chat.innerHTML = ''; setStatus('🧹 Очищено');
     };
   </script>
 </body>