[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_cli_acceptance.py

@@ -46,6 +46,8 @@ class CliAcceptanceTests(unittest.TestCase):
         self.assertEqual(data["endpoint_mode"], "primary_speaker")
         self.assertEqual(data["realtime_transcript_idle_timeout_ms"], 1500)
         self.assertEqual(data["context_mode"], "session_memory")
+        self.assertTrue(data["end_chime_enabled"])
+        self.assertEqual(data["end_chime_duration_ms"], 140)
         self.assertNotIn("secret-value", str(data))
 
     def test_security_check_command_has_no_leaks(self) -> None: