feat(studio): expand nitro cleanup with repair, auto-clean, and orphaned assets

Scan distinguishes fake, broken, and orphaned SWF/icon assets with age
metadata, deletes per asset kind, re-downloads broken nitro bundles from
configured sources, auto-cleans old fake leftovers, and exports a JSON
manifest. Adds rebuild and auto-clean API endpoints with audit coverage
and a housekeeping preview route under the hotel domain.

Verified: full vitest suite (2213 tests), typecheck, and biome all pass.

src/features/housekeeping/foundation/registry.test.ts

@@ -77,6 +77,7 @@ const expectedManifests = [
 		labelKey: "pages.housekeeping.domains.operations.title",
 		descriptionKey: "pages.housekeeping.domains.operations.description",
 		slugs: [PERMS.ADMIN_DASHBOARD, PERMS.ASSETS_IMPORT],
+		routes: [],
 	},
 	{
 		id: "people",
@@ -108,6 +109,7 @@ const expectedManifests = [
 			PERMS.MOD_CFH_EDIT,
 			PERMS.MOD_TICKETS_EDIT,
 		],
+		routes: [],
 	},
 	{
 		id: "content",
@@ -131,6 +133,7 @@ const expectedManifests = [
 			PERMS.SETTINGS_VIEW,
 			PERMS.SETTINGS_EDIT,
 		],
+		routes: [],
 	},
 	{
 		id: "economy",
@@ -144,6 +147,7 @@ const expectedManifests = [
 			PERMS.CATALOG_EDIT,
 			PERMS.SHOP_EDIT,
 		],
+		routes: [],
 	},
 	{
 		id: "hotel",
@@ -161,6 +165,14 @@ const expectedManifests = [
 			PERMS.PAGES_VIEW,
 			PERMS.CATALOG_EDIT,
 		],
+		routes: [
+			{
+				id: "nitro-cleanup",
+				labelKey: "pages.housekeeping.domains.hotel.routes.nitroCleanup",
+				href: "/admin-next/hotel/nitro-cleanup",
+				capability: { mode: "any", slugs: [PERMS.ASSETS_IMPORT] },
+			},
+		],
 	},
 	{
 		id: "system",
@@ -180,6 +192,7 @@ const expectedManifests = [
 			PERMS.SETTINGS_EDIT,
 			PERMS.NOTIFICATIONS_EDIT,
 		],
+		routes: [],
 	},
 ] as const;
 describe("housekeeping registry", () => {
@@ -324,7 +337,7 @@ describe("housekeeping registry", () => {
 				labelKey: expected.labelKey,
 				descriptionKey: expected.descriptionKey,
 			});
-			expect(actual.routes).toEqual([]);
+			expect(actual.routes).toEqual(expected.routes);
 			expect(actual.searchProviders).toEqual([]);
 			expect(actual.inboxSources).toEqual([]);
 			expect(actual.widgets).toEqual([]);