QA: Voice Input — CrewAI (Crews)

• Navigate to /demos/voice.
• Verify the "Play sample" button (data-testid="voice-sample-audio-button") renders.
• Click "Play sample"; verify the chat composer is populated with transcribed text within a few seconds.
• Click the microphone icon in the composer; verify browser mic permission is requested.
• (If OPENAI_API_KEY is set) verify a live recording transcribes correctly into the composer.