Fix model paths: looking in models/ folder

plrs/model/model_loader.py

@@ -41,9 +41,9 @@ def load_model_from_hub(device: str = "cpu"):
         return None, "huggingface_hub not installed"
 
     for filename, model_type in [
-        ("sakt_decay_best.pt",   "SAKTWithDecay"),
-        ("sakt_vanilla_best.pt", "SAKTModel"),
-        ("sakt_model.pt",        "SAKTModel"),
+        ("models/sakt_decay_best.pt",   "SAKTWithDecay"),
+        ("models/sakt_vanilla_best.pt", "SAKTModel"),
+        ("models/sakt_model.pt",        "SAKTModel"),
     ]:
         try:
             path = hf_hub_download(repo_id=HF_REPO, filename=filename)