[结束提示音优化]：完成Codex通知音资产内置，包含音频提取、配置默认值和回归测试

src/owner_voice_pet/runtime.py

@@ -33,7 +33,7 @@ from .models import AudioSegment, ErrorCode, PipelineState, ProviderError
 from .protocols import AudioTransport, LlmProvider, RealtimeSttProvider, SttProvider, TtsProvider, WakeWordProvider
 from .stt import CloudAsrSttProvider, SherpaOnnxSttProvider, is_valid_transcript_text
 from .transport import SoundDeviceAudioTransport
-from .tts import CloudTtsProvider, MacSayTtsProvider, SentenceBuffer, make_prompt_chime, sanitize_tts_text
+from .tts import CloudTtsProvider, MacSayTtsProvider, SentenceBuffer, make_end_chime, sanitize_tts_text
 from .vad import EnergyVadProvider, HybridVadProvider, PrimarySpeakerVadRecorder, SherpaOnnxVadProvider, VadRecorder
 from .wakeword import SherpaOnnxKeywordWakeWordProvider
 
@@ -343,7 +343,8 @@ class LiveVoiceRuntime:
     def _play_end_chime(self) -> None:
         if not self.config.end_chime_enabled:
             return
-        segment = make_prompt_chime(
+        segment = make_end_chime(
+            file_path=self.config.end_chime_file,
             frequency_hz=self.config.end_chime_frequency_hz,
             duration_ms=self.config.end_chime_duration_ms,
             sample_rate=self.config.sample_rate,