Investigate deadlock (#178)

frontend/test-client/src/utils/with-timeout.ts

@@ -0,0 +1,16 @@
+export async function withTimeout<T>(
+	promise: Promise<T>,
+	timeoutMs: number,
+	operationName: string
+): Promise<T> {
+	return Promise.race([
+		promise,
+		new Promise<T>((_, reject) =>
+			setTimeout(() => {
+				reject(
+					new Error(`${operationName} timed out after ${timeoutMs}ms`)
+				);
+			}, timeoutMs)
+		)
+	]);
+}