fix: refresh voice config only on chat lifecycle

ai_knowledge_base_v2/apps/user-client/src/App.vue

@@ -15,6 +15,7 @@ import type { ChatMessage as ApiMessage, ChatSession, PeriodicReport, PracticeRe
 const user = ref<UserProfile | null>(null);
 const sessions = ref<ChatSession[]>([]);
 const activeSessionId = ref<number | null>(null);
+const composerKey = ref(0);
 const messages = ref<DisplayMessage[]>([]);
 const drawerOpen = ref(false);
 const sending = ref(false);
@@ -127,6 +128,7 @@ async function loadSessions() {
 
 async function createSession() {
   if (sessionOperationPending.value) return;
+  composerKey.value += 1;
   const existingBlank = sessions.value.find((session) => session.messageCount === 0);
   if (existingBlank) {
     await selectSession(existingBlank.id);
@@ -643,7 +645,7 @@ async function copyText(text: string) {
           @retry="retryMessage"
           @feedback="openFeedback"
         />
-        <ChatComposer :loading="sending" :disabled="!activeSessionId || loadingSession" @send="send" @stop="stop" />
+        <ChatComposer :key="composerKey" :loading="sending" :disabled="!activeSessionId || loadingSession" @send="send" @stop="stop" />
         <SessionDrawer
           :open="drawerOpen"
           :sessions="sessions"