fix(member-live): guard the composite sort event and apply review cleanup

assets/css/app.css

@@ -923,8 +923,7 @@
  * pure CSS anchor positioning (the "⋮" trigger carries anchor-name, this popover
  * carries position-anchor). `position-area` drops it just below the trigger,
  * right-aligned, and `position-try-fallbacks` flips it above when there is no
- * room below. The SubfieldMenu hook only toggles it — no coordinate math. This
- * mirrors the payment-badge popover approach (§548) for a consistent look/feel.
+ * room below. The SubfieldMenu hook only toggles it — no coordinate math.
  */
 .popover-menu {
   margin: 0;