summary
CM/ML platform debugging session: found and fixed genuine JS syntax errors in cmd-popup.js and ml-popup.js that had silently broken both since 07/19-07/23 despite changelogs claiming they worked; consolidated CM platform-wide onto the real cmd-popup.js after initially duplicating it; fixed Master List default-collapsed groups bug; ran full audit at close per D300 and found this system's own handoff-01.md was empty despite two sessions today claiming clean closes -- wrote real handoff and am closing properly this time with handoff passed directly per CLOSE.php's hard gate.