For 47dc9f7fc0: docs/gateway/sandboxing.md now warns under "Build the default
image" that OpenClaw no longer silently retags plain debian:bookworm-slim as
openclaw-sandbox:bookworm-slim when the default image is missing. Sandbox runs
fail with a build instruction so the python3 tooling required by sandbox
write/edit helpers is preserved instead of being silently dropped.