Fix repo_id parsing for HF Hub download

Amp-Thread-ID: https://ampcode.com/threads/T-22e83726-d77c-475f-b185-6d55f37c5979
Co-authored-by: Amp <amp@ampcode.com>

model.py

@@ -12,9 +12,10 @@ class TrafficSignDetector:
 
         # Download model from HF Hub if not local
         model_path = config['model']['path']
-        if model_path.startswith('VietCat/'):
-            # Extract repo and file path
-            repo_id, file_path = model_path.split('/', 1)
+        if model_path.startswith('VietCat/GTSRB-Model/'):
+            # Extract repo and file path for GTSRB-Model
+            repo_id = 'VietCat/GTSRB-Model'
+            file_path = model_path.replace('VietCat/GTSRB-Model/', '')
             local_model_path = hf_hub_download(repo_id=repo_id, filename=file_path)
             self.model = YOLO(local_model_path)
         else: