callebtc c382c17a92 mesh-lab: fail closed when evidence dir is empty
A bare `test -n` does not abort in a shell without set -e, so a failed
mktemp would let `--out ""` resolve to the repository root and write
private evidence there. Guard with an explicit exit instead.
2026-07-29 13:54:50 +02:00
..
2026-07-28 19:23:02 +02:00