update app.py

app.py

@@ -9,6 +9,8 @@ hf_token = os.getenv("HUGGING_FACE_API_TOKEN")
 if not hf_token:
     st.error("Hugging Face API token not found. Please set the HUGGING_FACE_API_TOKEN environment variable.")
     st.stop()
+else:
+    st.write(f"Hugging Face API token found: {hf_token[:4]}...")  # Debug statement, only showing the first 4 characters for security
 
 # Initialize the model and tokenizer using Hugging Face pipeline
 model_id = "meta-llama/Meta-Llama-3.1-70B"