/** * Custom error classes for better error handling */ export class NftBaseError extends Error { constructor(message: string) { super(message); this.name = 'NftBaseError'; } } export class NftValidationError extends NftBaseError { constructor(message: string) { super(message); this.name = 'NftValidationError'; } } export class NftExecutionError extends NftBaseError { constructor(message: string) { super(message); this.name = 'NftExecutionError'; } } export class NftResourceError extends NftBaseError { constructor(message: string) { super(message); this.name = 'NftResourceError'; } }