Update app.py

app.py

@@ -4,7 +4,11 @@ import requests
 
 # --- CONFIG ---
 SIGN_IMAGE_FOLDER = "sign_images"
-HF_TOKEN = "your_huggingface_token"  # Replace with your actual token
+HF_TOKEN = os.getenv("HF_API_TOKEN")
+if not HF_TOKEN:
+    st.error("Hugging Face API token not found. Please set 'HF_API_TOKEN' in your environment.")
+    st.stop()
+
 HF_MODEL = "facebook/mbart-large-50-many-to-many-mmt"
 
 # --- STREAMLIT UI ---