refactor: address frontend review feedback

src/pages/accounts/ui/AccountsPage/AccountsPage.test.tsx

@@ -60,7 +60,7 @@ describe("AccountsPage", () => {
 		renderPage(createTestQueryClient());
 		fireEvent.click(await screen.findByRole("button", { name: "Повторить" }));
 		expect(await screen.findByText(account.name)).toBeVisible();
-		// eslint-disable-next-line unicorn/no-null -- Preserve the API/DOM null sentinel in the expected response.
+
 		expect(modes).toEqual([null, "observe"]);
 	});
 	it.each([
@@ -212,12 +212,11 @@ it("keeps unknown membership loading instead of declaring no accounts", async ()
 	const client = createTestQueryClient();
 	renderPage(client);
 	await waitFor(() =>
-		/* eslint-disable unicorn/no-null -- Fixture preserves the production contract’s explicit null values. */
+
 		expect(client.getQueryData(brokerageAccountsQueryKey)).toMatchObject(
 			{
 				data: null,
 			},
-			/* eslint-enable unicorn/no-null */
 		),
 	);
 	expect(