fix(tbank): reset connection-derived query cache

src/features/auth/model/auth.test.tsx

@@ -1,9 +1,9 @@
 import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
-import { renderHook, waitFor } from "@testing-library/react";
+import { act, renderHook, waitFor } from "@testing-library/react";
 import { HttpResponse, http } from "msw";
 import type { FC, PropsWithChildren } from "react";
 import { describe, expect, it } from "vitest";
-import { apiClient } from "@/shared/api";
+import { apiClient, apiQueryClient } from "@/shared/api";
 import { server } from "@/test/server";
 import { AuthProvider, useAuth } from "./auth";
 
@@ -100,4 +100,47 @@ describe("AuthProvider", () => {
 		expect(result.current.accessToken).toBeNull();
 		expect(queryClient.getQueryData(["cached-query"])).toBeUndefined();
 	});
+
+	it("clears connection status and financial cache independently on logout", async () => {
+		server.use(
+			http.post("*/api/v1/auth/refresh", () =>
+				HttpResponse.json({
+					accessToken: "test-token",
+					user: { id: "user-1", email: "user@example.com" },
+				}),
+			),
+		);
+		const queryClient = new QueryClient();
+		const statusKey = apiQueryClient.queryOptions(
+			"get",
+			"/api/v1/tbank-connection",
+		).queryKey;
+		const portfolioKey = apiQueryClient.queryOptions(
+			"get",
+			"/api/v1/brokerage-accounts/{accountId}/portfolio",
+			{ params: { path: { accountId: "account-1" } } },
+		).queryKey;
+		queryClient.setQueryData(statusKey, {
+			connected: true,
+			connectedAt: "2026-08-14T00:00:00Z",
+		});
+		queryClient.setQueryData(portfolioKey, { source: "current-connection" });
+		const wrapper: FC<PropsWithChildren> = (props) => {
+			const { children } = props;
+			return (
+				<QueryClientProvider client={queryClient}>
+					<AuthProvider>{children}</AuthProvider>
+				</QueryClientProvider>
+			);
+		};
+		const { result } = renderHook(() => useAuth(), { wrapper });
+		await waitFor(() => expect(result.current.accessToken).toBe("test-token"));
+
+		await act(() => result.current.logout());
+
+		expect(result.current.user).toBeNull();
+		expect(result.current.accessToken).toBeNull();
+		expect(queryClient.getQueryData(statusKey)).toBeUndefined();
+		expect(queryClient.getQueryData(portfolioKey)).toBeUndefined();
+	});
 });