The lab redesign gave only the lab tab the published-history sidebar;
the composer page was expected to have it too. /setup/tariff now lists
every published version (name or effective date, active badge, currency)
on the right; clicking one loads it into the editor as the SEED for the
next publish — which always creates a new immutable version (the sidebar
hint states this), making "roll back to last month's prices" a two-click
republish while the history stays append-only.
Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V
julian
4f902d869e