Select the live folder that should receive the dev contents. The system will:
1) Snapshot current live to
/repos/{devFolder}/live-YYYY-MM-DD_HH-MM-SS/ (if live exists).
2) Snapshot dev to /repos/{devFolder}/dev-YYYY-MM-DD_HH-MM-SS/.
3) Copy dev files into the selected live folder, overwriting files from dev but
preserving any extra files already present in live (images/logs).
