Update Dockerfile

Dockerfile

@@ -1,7 +1,7 @@
 # FrontierLabs-Env Dockerfile
 # Hugging Face Spaces compatible (port 7860, non-root user)
 
-FROM python:3.11-slim
+FROM python:3.11.8-slim-bookworm
 
 # HF Spaces metadata
 LABEL maintainer="FrontierLabs Team"
@@ -41,4 +41,4 @@ HEALTHCHECK --interval=30s --timeout=10s --start-period=15s --retries=3 \
     CMD curl -f http://localhost:7860/health || exit 1
 
 # Start the FastAPI server
-CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "1"]
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "1"]