fix: CosyVoice3 stream 파라미터 타입 수정 (str→bool)

app.py

@@ -227,7 +227,7 @@ def tts_cosyvoice2(text: str) -> dict:
         prompt_wav_record=handle_file(dummy_wav),
         instruct_text="You are a helpful assistant. Please say a sentence as loudly as possible.<|endofprompt|>",
         seed=42,
-        stream="False",
+        stream=False,
         ui_lang="En",
         api_name="/generate_audio",
     )