Update app.py

app.py

@@ -30,12 +30,9 @@ except Exception:
     hf_hub_download = None
     HfHubHTTPError = Exception
 
-HF_TOKEN = (
-    os.getenv("HUGGING_FACE_HUB_TOKEN")
-    or os.getenv("HF_TOKEN")
-    or os.getenv("key")  # backwards compat
-)
-PRIVATE_REPO = (os.getenv("PRIVATE_REPO") or "").strip() or "fallback"
+HF_TOKEN = os.getenv("key")  # backwards compat
+
+PRIVATE_REPO = os.getenv("PRIVATE_REPO") 
 huggingface_model_path = None
 
 def _try_hf_download(repo_id: str, filename: str, token: Optional[str]):
@@ -211,7 +208,7 @@ def preload_models():
     if _preloaded and image_processor is not None and model is not None:
         return True
     try:
-        hf_repo = (os.getenv('MODEL_REPO') or "").strip()
+        hf_repo = os.getenv('MODEL_REPO')
         if not hf_repo:
             print("⚠️ MODEL_REPO not set → demo mode unless already loaded.")
             return False