feat: unified catalog endpoint and slug-based app navigation

Consolidate route catalog (agent-driven) and apps table (deployment-
driven) into a single GET /api/v1/catalog?environment={slug} endpoint.
Apps table is authoritative; agent data enriches with live health,
routes, and metrics. Unmanaged apps (agents without App record) appear
with managed=false.

- Add CatalogController merging App records + agent registry + ClickHouse
- Add CatalogApp DTO with deployment summary, managed flag, health
- Change AppController and DeploymentController to accept slugs (not UUIDs)
- Add AppRepository.findBySlug() and AppService.getBySlug()
- Replace useRouteCatalog() with useCatalog() across all UI components
- Navigate to /apps/{slug} instead of /apps/{UUID}
- Update sidebar, search, and all catalog lookups to use slug

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

ui/src/pages/Admin/AppConfigDetailPage.tsx

@@ -7,8 +7,8 @@ import {
 import type { Column } from '@cameleer/design-system';
 import { useApplicationConfig, useUpdateApplicationConfig } from '../../api/queries/commands';
 import type { ApplicationConfig, TapDefinition, ConfigUpdateResponse } from '../../api/queries/commands';
-import { useRouteCatalog } from '../../api/queries/catalog';
-import type { AppCatalogEntry, RouteSummary } from '../../api/types';
+import { useCatalog } from '../../api/queries/catalog';
+import type { CatalogApp, CatalogRoute } from '../../api/queries/catalog';
 import styles from './AppConfigDetailPage.module.css';
 
 type BadgeColor = 'primary' | 'success' | 'warning' | 'error' | 'running' | 'auto';
@@ -75,7 +75,7 @@ export default function AppConfigDetailPage() {
   const { toast } = useToast();
   const { data: config, isLoading } = useApplicationConfig(appId);
   const updateConfig = useUpdateApplicationConfig();
-  const { data: catalog } = useRouteCatalog();
+  const { data: catalog } = useCatalog();
 
   const [editing, setEditing] = useState(false);
   const [form, setForm] = useState<Partial<ApplicationConfig> | null>(null);
@@ -83,9 +83,9 @@ export default function AppConfigDetailPage() {
   const [routeRecordingDraft, setRouteRecordingDraft] = useState<Record<string, boolean>>({});
 
   // Find routes for this application from the catalog
-  const appRoutes: RouteSummary[] = useMemo(() => {
+  const appRoutes: CatalogRoute[] = useMemo(() => {
     if (!catalog || !appId) return [];
-    const entry = (catalog as AppCatalogEntry[]).find((e) => e.appId === appId);
+    const entry = (catalog as CatalogApp[]).find((e) => e.slug === appId);
     return entry?.routes ?? [];
   }, [catalog, appId]);