Devcontainer fails to build on Apple Silicon (arm64) due to trixie base image #6808

The devcontainer fails to build on Apple Silicon Macs. The base image mcr.microsoft.com/vscode/devcontainers/javascript-node:22 resolves to Debian 13 (trixie) on arm64, where python3-distutils and software-properties-common are unavailable, causing the apt-get install step to fail.

Verified with:

$ docker run --rm --platform linux/arm64 \
    mcr.microsoft.com/vscode/devcontainers/javascript-node:22 \
    cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 13 (trixie)"

Error:

E: Unable to locate package software-properties-common
E: Package 'python3-distutils' has no installation candidate

Fix: Pin the base image in .devcontainer/Dockerfile to the bookworm variant:

FROM mcr.microsoft.com/vscode/devcontainers/javascript-node:22-bookworm

This is a one-line change that makes the devcontainer build correctly on arm64.