Inspector: live data updates under interactive selections

src/app/components/DataInspector.tsx

@@ -73,7 +73,12 @@ interface DataInspectorPanelProps {
    * `renderEpoch`).
    */
   getData: () => InspectedData | null;
-  /** Bumps whenever a render settles, so the open table re-reads the new rows. */
+  /**
+   * Refresh trigger: bumps whenever the data to show may have changed, so the open
+   * table re-reads. The live-preview pane bumps it on each settled render *and* on
+   * an interactive selection that changes the inspected rows (live mode, M5); the
+   * builder bumps it on render only.
+   */
   renderEpoch: number;
   /**
    * Explicit panel height (px) — the live-preview pane sets this from its