refactor: align frontend ownership boundaries

Close audit gaps across API drift, query policy, UI, and tests.

src/shared/api/authenticated-query.test.tsx

@@ -1,31 +1,12 @@
-import { MantineProvider } from "@mantine/core";
-import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
 import { renderHook, waitFor } from "@testing-library/react";
 import { HttpResponse, http } from "msw";
-import type { FC, PropsWithChildren } from "react";
-import { afterEach, describe, expect, it, vi } from "vitest";
+import { describe, expect, it, vi } from "vitest";
+import { createQueryWrapper } from "@/test/query";
 import { server } from "@/test/server";
 import { useAuthenticatedQuery } from "./authenticated-query";
 import { apiQueryClient, configureAuthClient } from "./client";
 
-function createWrapper() {
-	const client = new QueryClient();
-	const TestWrapper: FC<PropsWithChildren> = (props) => {
-		const { children } = props;
-
-		return (
-			<MantineProvider>
-				<QueryClientProvider client={client}>{children}</QueryClientProvider>
-			</MantineProvider>
-		);
-	};
-
-	return TestWrapper;
-}
-
 describe("useAuthenticatedQuery", () => {
-	afterEach(() => configureAuthClient(null));
-
 	it("keeps protected queries idle without a session and loads after session configuration", async () => {
 		const requests = vi.fn();
 		server.use(
@@ -47,7 +28,7 @@ describe("useAuthenticatedQuery", () => {
 				useAuthenticatedQuery(
 					apiQueryClient.queryOptions("get", "/api/v1/brokerage-accounts"),
 				),
-			{ wrapper: createWrapper() },
+			{ wrapper: createQueryWrapper().wrapper },
 		);
 
 		await new Promise((resolve) => setTimeout(resolve, 0));