Uncomment HuggingFace token verification in Dockerfile

- Enable runtime secret verification for HuggingFace token
- Remove previous comment blocking token check
- Maintain existing Dockerfile security and configuration approach

Dockerfile

@@ -10,7 +10,7 @@ COPY --chown=user . /app
 
 EXPOSE 7860
 
-# RUN --mount=type=secret,id=HUGGINGFACE_TOKEN,mode=0444,required=true \
-#     test -f /run/secrets/HUGGINGFACE_TOKEN && echo "Secret exists!"
+RUN --mount=type=secret,id=HUGGINGFACE_TOKEN,mode=0444,required=true \
+    test -f /run/secrets/HUGGINGFACE_TOKEN && echo "Secret exists!"
 
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]