feat(toolbox): update toolbox-template scripts

- Update ToolboxStack/output/toolbox-template/Dockerfile with template container configurations
- Update ToolboxStack/output/toolbox-template/build.sh with template build process
- Update ToolboxStack/output/toolbox-template/run.sh with template runtime configuration

These changes improve the toolbox template for creating new developer environments.

ToolboxStack/output/toolbox-template/Dockerfile

@@ -17,6 +17,9 @@ RUN if getent passwd "${USER_ID}" >/dev/null; then \
     && useradd --uid "${USER_ID}" --gid "${GROUP_ID}" --shell /usr/bin/zsh --create-home "${USERNAME}" \
     && usermod -aG sudo "${USERNAME}" 2>/dev/null || true
 
+# Remove sudo to ensure no root escalation is possible at runtime
+RUN apt-get remove -y sudo 2>/dev/null || true && apt-get autoremove -y 2>/dev/null || true && rm -rf /var/lib/apt/lists/* 2>/dev/null || true
+
 # Switch to the non-root user
 USER ${USERNAME}
 WORKDIR /workspace