refactor

frontend/src/app/PanelManagerContext.tsx

@@ -78,9 +78,6 @@ const persistWidth = (panel: PanelKey, value: number): void => {
 };
 
 const applyPanelWidthToRoot = (panel: PanelKey, width: number, active: boolean): void => {
-  if (!Number.isFinite(width)) {
-    return;
-  }
   const varName = panel === 'sidebar' ? '--sidebar-width' : '--detail-panel-width';
   const resolvedValue = panel === 'detail' && !active ? '0px' : `${width}px`;
   document.documentElement.style.setProperty(varName, resolvedValue);
@@ -170,9 +167,7 @@ export const PanelManagerProvider: React.FC<PanelManagerProviderProps> = ({ chil
   const setPanelWidth = useCallback(
     (panel: PanelKey, width: number, { commit = true, log = true }: SetPanelWidthOptions = {}) => {
       const clamped = clampPanelWidth(panel, width);
-      if (!Number.isFinite(clamped)) {
-        return panelWidthsRef.current[panel];
-      }
+
       if (panel === 'sidebar') {
         setSidebarWidthState((prev) => (prev === clamped ? prev : clamped));
       } else {
@@ -348,10 +343,7 @@ export const usePanelResizeBindings = (
       event.preventDefault();
       event.stopPropagation();
       const rect = panelRef.current.getBoundingClientRect();
-      const startWidth = Number.isFinite(rect?.width) ? rect.width : getPanelWidth(panel);
-      if (!Number.isFinite(startWidth)) {
-        return;
-      }
+      const startWidth = rect?.width ?? getPanelWidth(panel);
       const pointerId = event.pointerId ?? 'mouse';
       const startX = event.clientX;
       startPanelResize(panel);
@@ -398,9 +390,7 @@ export const usePanelResizeBindings = (
     ],
   );
 
-  const panelStyle = enabled && Number.isFinite(liveWidth)
-    ? { width: `${liveWidth}px` }
-    : undefined;
+  const panelStyle = enabled ? { width: `${liveWidth}px` } : undefined;
 
   const handleProps = enabled
     ? {