/**
 * .what = a recursively-defined type that describes JSON-safe values
 * .why  = enables strict typing of structures that can be serialized (e.g., for APIs, storage, or LLM variables)
 *   - includes primitives, arrays, and nested objects
 *   - excludes functions, undefined, class instances, and non-JSON types
 */
export type Serializable = string | number | boolean | null | Serializable[] | {
    [key: string]: Serializable;
};