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/Routes/RouteDetail.tsx

@@ -26,13 +26,14 @@ import {
 } from '@cameleer/design-system';
 import type { KpiItem, Column } from '@cameleer/design-system';
 import { useGlobalFilters } from '@cameleer/design-system';
-import { useRouteCatalog } from '../../api/queries/catalog';
+import { useCatalog } from '../../api/queries/catalog';
 import { useDiagramByRoute } from '../../api/queries/diagrams';
 import { useProcessorMetrics } from '../../api/queries/processor-metrics';
 import { useStatsTimeseries, useSearchExecutions, useExecutionStats } from '../../api/queries/executions';
 import { useApplicationConfig, useUpdateApplicationConfig, useTestExpression } from '../../api/queries/commands';
 import type { TapDefinition } from '../../api/queries/commands';
-import type { ExecutionSummary, AppCatalogEntry, RouteSummary } from '../../api/types';
+import type { ExecutionSummary } from '../../api/types';
+import type { CatalogApp, CatalogRoute } from '../../api/queries/catalog';
 import { buildFlowSegments } from '../../utils/diagram-mapping';
 import styles from './RouteDetail.module.css';
 
@@ -300,7 +301,7 @@ export default function RouteDetail() {
   }, []);
 
   // ── API queries ────────────────────────────────────────────────────────────
-  const { data: catalog } = useRouteCatalog();
+  const { data: catalog } = useCatalog();
   const { data: diagram } = useDiagramByRoute(appId, routeId);
   const { data: processorMetrics, isLoading: processorLoading } = useProcessorMetrics(routeId ?? null, appId);
   const { data: stats } = useExecutionStats(timeFrom, timeTo, routeId, appId);
@@ -340,13 +341,13 @@ export default function RouteDetail() {
 
   // ── Derived data ───────────────────────────────────────────────────────────
 
-  const appEntry: AppCatalogEntry | undefined = useMemo(() =>
-    (catalog || []).find((e: AppCatalogEntry) => e.appId === appId),
+  const appEntry: CatalogApp | undefined = useMemo(() =>
+    (catalog || []).find((e: CatalogApp) => e.slug === appId),
     [catalog, appId],
   );
 
-  const routeSummary: RouteSummary | undefined = useMemo(() =>
-    appEntry?.routes?.find((r: RouteSummary) => r.routeId === routeId),
+  const routeSummary: CatalogRoute | undefined = useMemo(() =>
+    appEntry?.routes?.find((r: CatalogRoute) => r.routeId === routeId),
     [appEntry, routeId],
   );