/**
 * errors.ts
 * ---------
 * Cross-cutting error types used by parsers, loaders, and config resolution.
 * Kept in its own module so feature modules can import error types without
 * pulling in unrelated implementation code (e.g., the JSON loader doesn't
 * need to depend on the CLI parser just to throw a typed error).
 */

/**
 * Thrown when user-supplied input is invalid: unknown CLI option, missing
 * value, non-positive number, malformed config file, unresolvable default
 * path, etc. Distinct from runtime errors so the top-level entry can exit
 * with code 2 (user error) instead of code 1 (runtime failure).
 */
export class CliError extends Error {}