Update src/streamlit_app.py

src/streamlit_app.py

@@ -5,6 +5,13 @@ from sentence_transformers import SentenceTransformer, util
 from huggingface_hub import hf_hub_download
 import os
 
+token = os.getenv("HF_TOKEN")  # kommt aus Spaces Secrets
+if not token:
+    st.error("HF_TOKEN Secret fehlt. In Spaces: Settings → Secrets setzen.")
+    st.stop()
+
+os.environ["HUGGINGFACE_HUB_TOKEN"] = token
+
 st.set_page_config(page_title="ArXiv Expert Finder", page_icon="🔬", layout="wide")
 st.title("ArXiv Expert Finder")