Document how a running live USB can clone, build, install, and validate Colibri without a full ISO rebuild, plus the future helper-script shape.\n\nChecks: npx --yes prettier@3 --check docs/LIVE-COLIBRI-REBUILD.md; git diff --check. Note: ./scripts/check-format.sh still reports existing PLAN-OPERATOR-USB-NEXT.md formatting drift outside this change.
