export interface ResponseErrorOptions {	label: string;	statusMessages?: Readonly<Record<number, string>>;} /** Build a useful error from JSON or plain-text non-OK responses. */export async function responseError(	response: Response,	{ label, statusMessages }: ResponseErrorOptions,) {	const specialMessage = statusMessages?.[response.status];	if (specialMessage) return new Error(specialMessage); 	const status = `${String(response.status)}${response.statusText ? ` ${response.statusText}` : ""}`;	let detail = "";	try {		const contentType = response.headers.get("content-type") ?? "";		if (contentType.includes("application/json")) {			const payload: unknown = await response.json();			if (payload && typeof payload === "object") {				const record = payload as { error?: unknown; message?: unknown };				if (typeof record.message === "string") detail = record.message;				else if (typeof record.error === "string") detail = record.error;			}		} else {			detail = (await response.text()).trim();		}	} catch {		detail = "";	}	return new Error(		detail ? `${label} (${status}): ${detail}` : `${label} (${status})`,	);}