refactor: unify /apps routing with application and route filtering

- Table columns: Status, Route, Application, Started (yyyy-mm-dd hh:mm:ss),
  Duration, Agent (removed Order ID and Customer)
- /apps shows all exchanges, /apps/:id filters by application,
  /apps/:id/:routeId filters by application and route
- Route paths changed from /routes/:id to /apps/:appId/:routeId across
  sidebar, search, breadcrumbs, metrics, and exchange detail
- Added buildRouteToAppMap utility for route→application lookup

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

src/mocks/sidebar.ts

@@ -20,6 +20,17 @@ export interface SidebarApp {
   agents: SidebarAgent[]
 }
 
+/** Build a routeId → appId lookup from the sidebar tree */
+export function buildRouteToAppMap(apps: SidebarApp[] = SIDEBAR_APPS): Map<string, string> {
+  const map = new Map<string, string>()
+  for (const app of apps) {
+    for (const route of app.routes) {
+      map.set(route.id, app.id)
+    }
+  }
+  return map
+}
+
 export const SIDEBAR_APPS: SidebarApp[] = [
   {
     id: 'order-service',