update application file to include HF token

app.py

@@ -2,6 +2,14 @@ import gradio as gr
 from transformers import AutoProcessor, Gemma3nForConditionalGeneration
 import torch
 import textwrap
+from huggingface_hub import login
+import os
+
+# Log in using the HF token (automatically read from secret)
+hf_token = os.getenv("HUGGINGFACE_HUB_TOKEN")
+login(token=hf_token)
+
+
 
 # 🔄 Load model and processor
 model_id = "google/gemma-3n-e2b-it"