fix: correct gradio env vars case sensitivity

Use lowercase 'false' for GRADIO_SHARE and GRADIO_DEBUG to maintain consistency with boolean env var conventions

Dockerfile

@@ -102,8 +102,8 @@ RUN chown -R app:app /app \
 ENV PYTHONPATH=/app
 ENV GRADIO_SERVER_NAME=0.0.0.0
 ENV GRADIO_SERVER_PORT=7860
-ENV GRADIO_SHARE=False
-ENV GRADIO_DEBUG=False
+ENV GRADIO_SHARE=false
+ENV GRADIO_DEBUG=false
 
 # Matplotlib configuration for headless operation
 ENV MPLBACKEND=Agg