fix: sidebar highlighting works on all tabs, not just exchanges

Remove the /exchanges/ path guard so sidebarRevealPath is used whenever
available, enabling correct sidebar selection on dashboard, runtime, and
all other tabs when navigating via Cmd-K.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/design-system/layout/Sidebar/Sidebar.tsx

@@ -323,11 +323,9 @@ export function Sidebar({ apps, className, onNavigate }: SidebarProps) {
   const starredRouteStats = starredItems.filter((i) => i.type === 'routestat')
   const hasStarred = starredItems.length > 0
 
-  // For exchange detail pages, use the reveal path for sidebar selection so
+  // When a sidebar reveal path is provided (e.g. via Cmd-K navigation),
-  // the parent route is highlighted (exchanges have no sidebar entry of their own)
+  // use it for sidebar selection so the correct item is highlighted
-  const effectiveSelectedPath = location.pathname.startsWith('/exchanges/') && sidebarRevealPath
+  const effectiveSelectedPath = sidebarRevealPath ?? location.pathname
-    ? sidebarRevealPath
-    : location.pathname
 
   return (
     <aside className={`${styles.sidebar} ${className ?? ''}`}>