改用 .NET System.Speech 实现 Win11 本地 TTS 语音播放

config.py

@@ -1,4 +1,4 @@
-import os
+import os
 from pathlib import Path
 from dotenv import load_dotenv
 
@@ -29,15 +29,10 @@ def _env_int(key: str, default: int) -> int:
 WECOM_BOT_ID = _env("WECOM_BOT_ID")
 WECOM_BOT_SECRET = _env("WECOM_BOT_SECRET")
 
-# Xiaomi TTS
-XIAOMI_USER_ID = _env("XIAOMI_USER_ID", "1136458602")
-XIAOMI_TOKEN_PATH = _env(
-    "XIAOMI_TOKEN_PATH",
-    str(Path(__file__).resolve().parent / ".mi.token"),
-)
-XIAOMI_SPEAKER_DID = _env("XIAOMI_SPEAKER_DID", "3ba2c1e8-d8cb-45c5-b88a-15624e7a02f3")
+# Windows Local TTS
+TTS_VOICE_NAME = _env("TTS_VOICE_NAME", "")  # empty = system default voice
+TTS_RATE = _env_int("TTS_RATE", 0)            # SAPI rate: -10 (slowest) to 10 (fastest), default 0
 
 # TTS
 TTS_ENABLED = _env_bool("TTS_ENABLED", True)
 TTS_MAX_TEXT_LENGTH = _env_int("TTS_MAX_TEXT_LENGTH", 500)
-TTS_TIMEOUT_SECONDS = _env_int("TTS_TIMEOUT_SECONDS", 15)