fix: QwenEmotion device_map=auto 与 modelscope 不兼容导致 IndexError

- 移除 device_map='auto'，改为手动 .to(device)
- 与 IndexTTS2 中其他模型(GPT/BigVGAN/CamPPlus)加载方式一致
- 修复 use_cuda_kernel=False 时的加载失败

libs/index-tts/indextts/infer_v2.py

@@ -80,7 +80,7 @@ class IndexTTS2:
         self.use_accel = use_accel
         self.use_torch_compile = use_torch_compile
 
-        self.qwen_emo = QwenEmotion(os.path.join(self.model_dir, self.cfg.qwen_emo_path))
+        self.qwen_emo = QwenEmotion(os.path.join(self.model_dir, self.cfg.qwen_emo_path), device=self.device)
 
         self.gpt = UnifiedVoice(**self.cfg.gpt, use_accel=self.use_accel)
         self.gpt_path = os.path.join(self.model_dir, self.cfg.gpt_checkpoint)
@@ -717,14 +717,14 @@ def find_most_similar_cosine(query_vector, matrix):
     return most_similar_index
 
 class QwenEmotion:
-    def __init__(self, model_dir):
+    def __init__(self, model_dir, device="cuda:0"):
         self.model_dir = model_dir
+        self.device = device
         self.tokenizer = AutoTokenizer.from_pretrained(self.model_dir)
         self.model = AutoModelForCausalLM.from_pretrained(
             self.model_dir,
-            torch_dtype="float16",  # "auto"
-            device_map="auto"
-        )
+            torch_dtype="float16",
+        ).to(self.device)
         self.prompt = "文本情感分类"
         self.cn_key_to_en = {
             "高兴": "happy",