fix：修复windows 日志格式问题

backend/app/decorators/timeit.py

@@ -8,6 +8,6 @@ def timeit(func):
         result = func(*args, **kwargs)
         end = time.perf_counter()
         duration = end - start
-        print(f"⏱️ {func.__name__} executed in {duration:.4f} seconds")
+        print(f"{func.__name__} executed in {duration:.4f} seconds")
         return result
     return wrapper

backend/app/transcriber/whisper.py

@@ -82,7 +82,7 @@ class WhisperTranscriber(Transcriber):
                 print(" CUDA 可用，使用 GPU")
                 return True
             elif is_torch_installed():
-                print("⚠️ 只装了 torch，但没有 CUDA，用 CPU")
+                print(" 只装了 torch，但没有 CUDA，用 CPU")
                 return False
             else:
                 print(" 还没有安装 torch，请先安装")

backend/app/utils/video_reader.py

@@ -104,7 +104,7 @@ class VideoReader:
         return base64_images
 
     def run(self)->list[str]:
-        logger.info("🚀 开始提取视频帧...")
+        logger.info("开始提取视频帧...")
         try:
             # 确保目录存在
             print(self.frame_dir,self.grid_dir)
@@ -122,7 +122,7 @@ class VideoReader:
             print(self.frame_dir,self.grid_dir)
             self.extract_frames()
             print("2#3",self.frame_dir,self.grid_dir)
-            logger.info("🧩 开始拼接网格图...")
+            logger.info("开始拼接网格图...")
             image_paths = []
             groups = self.group_images()
             for idx, group in enumerate(groups, start=1):