feat(housekeeping): deliver system vertical

src/features/housekeeping/route-handlers.test.ts

@@ -1,4 +1,5 @@
 import { describe, expect, it } from "vitest";
+import { SYSTEM_ROUTE_IDS } from "./domains/system/routes";
 import { createHousekeepingRegistry } from "./foundation/registry";
 import { HOUSEKEEPING_MANIFESTS } from "./manifests";
 import { HOUSEKEEPING_ROUTE_HANDLERS } from "./route-handlers";
@@ -15,6 +16,6 @@ describe("housekeeping route handlers", () => {
 
 		expect(new Set(handlerIds).size).toBe(handlerIds.length);
 		expect([...handlerIds].sort()).toEqual([...routeIds].sort());
-		expect(handlerIds).toEqual([]);
+		expect(handlerIds).toEqual(SYSTEM_ROUTE_IDS);
 	});
 });