refactor(ui): resolve mobile layout and HMR findings for app shell and nav rail

src/ui/PlayPanel.tsx

@@ -1,9 +1,17 @@
 import { ActionPanel } from './ActionPanel';
+import { EventLog } from './EventLog';
+import { ResourceBar } from './ResourceBar';
 
 export function PlayPanel() {
   return (
     <div className="space-y-6">
+      <div className="block md:hidden">
+        <ResourceBar />
+      </div>
       <ActionPanel />
+      <div className="block md:hidden">
+        <EventLog />
+      </div>
     </div>
   );
 }