/** Serialise a value for a JSON column (stored as text on both dialects). */
export function toJson(v: unknown): string {
  return JSON.stringify(v);
}

/** Parse a JSON column, returning `fallback` for null, undefined or invalid text. */
export function fromJson<T>(s: string | null | undefined, fallback: T): T {
  if (s == null) return fallback;
  try {
    return JSON.parse(s) as T;
  } catch {
    return fallback;
  }
}