Pass HF_TOKEN to snapshot_download to access private model repo

app.py

@@ -44,6 +44,7 @@ def ensure_weights():
         local_dir="pretrained_models",
         local_dir_use_symlinks=False,
         allow_patterns=["**/*"],
+        token=os.getenv("HF_TOKEN") or os.getenv("HUGGINGFACE_TOKEN"),
     )