export const toNumber = (value: unknown): number | undefined => {
	if (typeof value === "number" && Number.isFinite(value)) return value;
	if (typeof value === "string") {
		const trimmed = value.trim();
		if (!trimmed) return undefined;
		const parsed = Number(trimmed);
		if (Number.isFinite(parsed)) return parsed;
	}
	return undefined;
};