```

feat: add audio buffering and interruption handling for voice input

Implement processing phase tracking (idle/transcribing/llm) and audio segment buffering to handle speech interruptions gracefully. Adds abort_request message type and buffer timeout mechanism to process accumulated audio segments together.
```

packages/voice-assistant/src/ui/App.tsx

@@ -435,6 +435,12 @@ function App() {
               audioPlayerRef.current.stop();
               setIsPlayingAudio(false);
               setCurrentAssistantMessage("");
+
+              // Send abort request to server immediately
+              ws.send({
+                type: "abort_request",
+                payload: {},
+              });
             },
             onSpeechEnd: async (audioData: Float32Array) => {
               console.log("[App] Speech ended, processing...");