chore: add typed ESLint checks #18

Refs WealthLedger/main#18. Keep Biome; add no Prettier dependencies.

src/features/tbank-connection/model/screen-sync.test.tsx

@@ -18,6 +18,57 @@ function auth() {
 	});
 }
 describe("page-owned screen synchronization", () => {
+	it("ignores a late sync acceptance after the account scope changes", async () => {
+		auth();
+		let release!: () => void;
+		const blocked = new Promise<void>((resolve) => {
+			release = resolve;
+		});
+		const posted: string[] = [];
+		const polled: string[] = [];
+		server.use(
+			http.post("*/api/v1/tbank-sync", async ({ request }) => {
+				const scope = (await request.json()) as {
+					screen: "account";
+					accountId: string;
+				};
+				posted.push(scope.accountId);
+				await blocked;
+				return HttpResponse.json(
+					{ id: scope.accountId, scope, now: "2026-09-25T00:00:00Z" },
+					{ status: 202 },
+				);
+			}),
+			http.get("*/api/v1/tbank-sync/:id", ({ params }) => {
+				polled.push(String(params.id));
+				return HttpResponse.json({
+					id: params.id,
+					state: "succeeded",
+					resources: [],
+				});
+			}),
+		);
+		const { result, rerender } = renderHook(
+			({ accountId }) => useScreenSync({ screen: "account", accountId }, []),
+			{
+				initialProps: { accountId: "old" },
+				wrapper: createQueryWrapper().wrapper,
+			},
+		);
+		let pending!: Promise<void>;
+		act(() => {
+			pending = result.current.refresh();
+		});
+		await waitFor(() => expect(posted).toEqual(["old"]));
+		rerender({ accountId: "new" });
+		await act(async () => {
+			release();
+			await pending;
+		});
+		await act(() => result.current.refresh());
+		await waitFor(() => expect(polled).toEqual(["new"]));
+		expect(posted).toEqual(["old", "new"]);
+	});
 	it.each([false, true])(
 		"retries a failed GET without forcing the source (cached=%s)",
 		async (cached) => {
@@ -155,7 +206,7 @@ describe("page-owned screen synchronization", () => {
 				);
 			expect(published).not.toContainEqual(
 				expect.objectContaining({
-					meta: expect.objectContaining({ stateVersion: "old" }),
+					meta: expect.objectContaining({ stateVersion: "old" }) as unknown,
 				}),
 			);
 			unsubscribe();
@@ -354,7 +405,7 @@ describe("page-owned screen synchronization", () => {
 				});
 				expect(modes).toEqual([null, "observe"]);
 				if (boundary === "leave") unmount();
-				else await act(() => configureAuthClient(null));
+				else act(() => configureAuthClient(null));
 				const stopped = polls;
 				await act(async () => {
 					await new Promise((resolve) => setTimeout(resolve, 1100));