added debugging steps

app.py

@@ -7,7 +7,7 @@ import torchvision.utils as vutils
 from fastapi import FastAPI, Response, HTTPException, Query
 from fastapi.responses import StreamingResponse
 from fastapi.middleware.cors import CORSMiddleware
-from huggingface_hub import hf_hub_download
+from huggingface_hub import hf_hub_download, login
 
 from models import Generator
 
@@ -35,14 +35,21 @@ def load_model():
     global gen_model
     try:
         token = os.getenv("HF_TOKEN")
+        if token:
+            login(token=token)
+            print("Login successful.")
+        else:
+            print("No HF_TOKEN found - attempting public download.")
+
         model_path = hf_hub_download(repo_id=REPO_ID, filename=FILENAME, token=token)
-        
+        print(f"File downloaded to: {model_path}")
+
         checkpoint = torch.load(model_path, map_location=DEVICE)
         
         gen_model = Generator(z_dim=Z_DIM).to(DEVICE)
         gen_model.load_state_dict(checkpoint["gen_state_dict"])
         gen_model.eval()
-        print("Model loaded successfully.")
+        print("✅ SUCCESS: Petrol Pump GAN is live!")
     except Exception as e:
         print(f"Error loading model: {e}")