feat: add session updates and message dialogs

frontend/src/components/assistant-editor/debug-preview.tsx

@@ -22,6 +22,7 @@ import {
 } from "lucide-react";
 
 import { NetworkQualityIndicator } from "@/components/network-quality-indicator";
+import { ClientMessageDialog } from "@/components/client-message-dialog";
 import { AuraVisualizer } from "@/components/ui/aura-visualizer";
 import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
@@ -684,6 +685,7 @@ function DebugVoicePanel({
     <div className="flex min-h-0 flex-1 flex-col">
       {/* 后端 TTS 音频经 WebRTC 媒体流过来,挂这里播放 */}
       <audio ref={audioRef} autoPlay playsInline className="hidden" />
+      <ClientMessageDialog preview={preview} />
       {vision && !showIdleHub ? (
         <DebugVisionWorkspace
           view={view}