ai: persist conversation id

backend/atlas_portal/routes/ai.py

@@ -20,6 +20,7 @@ def register(app) -> None:
         user_message = (payload.get("message") or "").strip()
         history = payload.get("history") or []
         profile = (payload.get("profile") or payload.get("mode") or "atlas-quick").strip().lower()
+        conversation_id = payload.get("conversation_id") if isinstance(payload.get("conversation_id"), str) else ""
 
         if not user_message:
             return jsonify({"error": "message required"}), 400
@@ -30,7 +31,7 @@ def register(app) -> None:
             source = "stock"
         else:
             mode = "smart" if profile in {"atlas-smart", "smart"} else "quick"
-            reply = _atlasbot_answer(user_message, mode)
+            reply = _atlasbot_answer(user_message, mode, conversation_id)
             source = f"atlas-{mode}"
         if reply:
             elapsed_ms = int((time.time() - started) * 1000)
@@ -54,7 +55,7 @@ def register(app) -> None:
     _start_keep_warm()
 
 
-def _atlasbot_answer(message: str, mode: str) -> str:
+def _atlasbot_answer(message: str, mode: str, conversation_id: str) -> str:
     endpoint = settings.AI_ATLASBOT_ENDPOINT
     if not endpoint:
         return ""
@@ -62,8 +63,11 @@ def _atlasbot_answer(message: str, mode: str) -> str:
     if settings.AI_ATLASBOT_TOKEN:
         headers["X-Internal-Token"] = settings.AI_ATLASBOT_TOKEN
     try:
+        payload = {"prompt": message, "mode": mode}
+        if conversation_id:
+            payload["conversation_id"] = conversation_id
         with httpx.Client(timeout=settings.AI_ATLASBOT_TIMEOUT_SEC) as client:
-            resp = client.post(endpoint, json={"prompt": message, "mode": mode}, headers=headers)
+            resp = client.post(endpoint, json=payload, headers=headers)
             if resp.status_code != 200:
                 return ""
             data = resp.json()

frontend/src/views/AiView.vue

@@ -117,6 +117,21 @@ const draft = ref("");
 const sending = ref(false);
 const chatWindow = ref(null);
 const copied = ref(false);
+const conversationIds = reactive({});
+
+function ensureConversationId(profile) {
+  if (conversationIds[profile]) return conversationIds[profile];
+  const key = `atlas-ai-conversation:${profile}`;
+  let value = localStorage.getItem(key);
+  if (!value) {
+    const suffix =
+      typeof crypto !== "undefined" && crypto.randomUUID ? crypto.randomUUID() : `${Math.random()}`.slice(2);
+    value = `${profile}-${Date.now()}-${suffix}`;
+    localStorage.setItem(key, value);
+  }
+  conversationIds[profile] = value;
+  return value;
+}
 
 onMounted(() => fetchMeta(activeProfile.value));
 watch(activeProfile, (profile) => fetchMeta(profile));
@@ -157,11 +172,12 @@ async function sendMessage() {
 
   try {
     const history = state.messages.filter((m) => !m.streaming).map((m) => ({ role: m.role, content: m.content }));
+    const conversation_id = ensureConversationId(activeProfile.value);
     const start = performance.now();
     const resp = await fetch(API_URL, {
       method: "POST",
       headers: { "Content-Type": "application/json" },
-      body: JSON.stringify({ message: text, history, profile: activeProfile.value }),
+      body: JSON.stringify({ message: text, history, profile: activeProfile.value, conversation_id }),
     });
     const contentType = resp.headers.get("content-type") || "";