style(ui): format panel rail modules and retain source invariants

src/ui/panelRails.js

@@ -1,5 +1,13 @@
 export { layoutLeftPanelRail } from './leftPanelRail.js';
 export { layoutRightPanelRail } from './rightPanelRail.js';
 export { measurePanelNaturalHeight } from './panelMeasurement.js';
-export { resolveHudRailLayout, shouldHideCollapsedRightPanels } from './panelRailGeometry.js';
-export { allocatePanelStackHeights, panelStackAutoCollapseIndices, resolveLeftStackBottomBoundary, resolvePanelStackCorridor } from '../panelStackLayout.js';
+export {
+  resolveHudRailLayout,
+  shouldHideCollapsedRightPanels,
+} from './panelRailGeometry.js';
+export {
+  allocatePanelStackHeights,
+  panelStackAutoCollapseIndices,
+  resolveLeftStackBottomBoundary,
+  resolvePanelStackCorridor,
+} from '../panelStackLayout.js';