fix(housekeeping): count preference payload bytes

src/actions/housekeeping-preferences.test.ts

@@ -1,4 +1,4 @@
-import { beforeEach, describe, expect, it, vi } from "vitest";
+import { beforeEach, describe, expect, expectTypeOf, it, vi } from "vitest";
 
 vi.mock("@/features/housekeeping/foundation/server-capability-context", () => ({
 	getHousekeepingCapabilityContext: vi.fn(),
@@ -40,6 +40,15 @@ describe("housekeeping preference actions", () => {
 		expect(saveHousekeepingPreferences).toHaveLength(1);
 	});
 
+	it("publishes exact action signatures without caller-controlled dependencies", () => {
+		expectTypeOf<
+			Parameters<typeof loadHousekeepingPreferences>
+		>().toEqualTypeOf<[]>();
+		expectTypeOf<
+			Parameters<typeof saveHousekeepingPreferences>
+		>().toEqualTypeOf<[input: unknown]>();
+	});
+
 	it("derives the read owner from the server capability context", async () => {
 		const result = await loadHousekeepingPreferences();