Change base container image to nvcr.io/nvidia/base/ubuntu:noble-20251013

[drew]

Summary

Switch the base sandbox container image from ubuntu:24.04 to nvcr.io/nvidia/base/ubuntu:noble-20251013.

Details

The base Dockerfile at sandboxes/base/Dockerfile currently uses ubuntu:24.04 as the foundation for all community sandbox images. We should migrate to the NVIDIA NGC base image nvcr.io/nvidia/base/ubuntu:noble-20251013 to align with NVIDIA's container ecosystem and benefit from any NVIDIA-specific optimizations and security patches.

Changes Required

• Update FROM ubuntu:24.04 AS system to FROM nvcr.io/nvidia/base/ubuntu:noble-20251013 AS system in sandboxes/base/Dockerfile

Impact

All downstream sandbox images (openclaw, nemoclaw) inherit from the base image, so this change propagates through the entire image hierarchy.