feat(integrations): add UnifiOsIntegration with optional cloud enrichment

Introduces UnifiOsIntegration, orchestrating UnifiOsApi (local) and
UnifiSmApi (optional cloud) to build the UnifiOsSummary. Local endpoint
calls degrade independently via Promise.allSettled; the cloud client is
never instantiated without a configured siteManagerApiKey secret.
Registers the unifiOs kind in the integration creator, index, and types
barrels, resolving the previously-failing typecheck.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

packages/integrations/src/base/creator.ts

@@ -53,6 +53,7 @@ import { TrueNasIntegration } from "../truenas/truenas-integration";
 import { UmamiIntegration } from "../umami/umami-integration";
 import { UptimeKumaIntegration } from "../uptime-kuma/uptime-kuma-integration";
 import { UnifiControllerIntegration } from "../unifi-controller/unifi-controller-integration";
+import { UnifiOsIntegration } from "../unifi-os/unifi-os-integration";
 import { UnraidIntegration } from "../unraid/unraid-integration";
 import { WudIntegration } from "../wud/wud-integration";
 import type { Integration, IntegrationInput } from "./integration";
@@ -109,6 +110,7 @@ export const integrationCreators = {
   emby: EmbyIntegration,
   nextcloud: NextcloudIntegration,
   unifiController: UnifiControllerIntegration,
+  unifiOs: UnifiOsIntegration,
   opnsense: OPNsenseIntegration,
   ical: ICalIntegration,
   ntfy: NTFYIntegration,