export function normalizeThinkingLevel(value: unknown): string | null {
	const raw = String(value ?? "").trim().toLowerCase();
	if (!raw) return null;
	if (raw === "none" || raw === "disabled") return "off";
	if (raw === "xhigh" || raw === "xhight" || raw === "x-high" || raw === "x_high" || raw === "extra_high") return "x-high";
	return raw;
}