[结束提示音]：完成对话结束音效提示，包含本地短音生成、恢复待机播放和配置测试

tests/test_models_config.py

@@ -113,6 +113,9 @@ class ModelsConfigTests(unittest.TestCase):
             self.assertTrue(config.barge_in_enabled)
             self.assertEqual(config.barge_in_min_speech_ms, 250)
             self.assertEqual(config.barge_in_echo_guard_ms, 500)
+            self.assertTrue(config.end_chime_enabled)
+            self.assertEqual(config.end_chime_frequency_hz, 880)
+            self.assertEqual(config.end_chime_duration_ms, 140)
             self.assertTrue(config.llm_stream)
             self.assertEqual(config.validate_basic(), [])
 
@@ -153,6 +156,8 @@ class ModelsConfigTests(unittest.TestCase):
             followup_listen_timeout_ms=-1,
             barge_in_min_speech_ms=-1,
             barge_in_echo_guard_ms=-1,
+            end_chime_frequency_hz=0,
+            end_chime_duration_ms=0,
         )
         errors = config.validate_basic()
 
@@ -161,6 +166,8 @@ class ModelsConfigTests(unittest.TestCase):
         self.assertTrue(any("OWNER_FOLLOWUP_LISTEN_TIMEOUT_MS" in error.message for error in errors))
         self.assertTrue(any("OWNER_BARGE_IN_MIN_SPEECH_MS" in error.message for error in errors))
         self.assertTrue(any("OWNER_BARGE_IN_ECHO_GUARD_MS" in error.message for error in errors))
+        self.assertTrue(any("OWNER_END_CHIME_FREQUENCY_HZ" in error.message for error in errors))
+        self.assertTrue(any("OWNER_END_CHIME_DURATION_MS" in error.message for error in errors))
 
     def test_speaker_similarity_threshold_range_is_validated(self) -> None:
         config = AppConfig(speaker_similarity_threshold=1.5)