import Foundation public enum CommandCodeUsageError: LocalizedError, Sendable, Equatable {    case missingCredentials    case invalidCredentials    case networkError(String)    case apiError(Int)    case parseFailed(String)    case unknownPlan(String)     public var errorDescription: String? {        switch self {        case .missingCredentials:            "Command Code session cookie not found. Sign in to commandcode.ai in Chrome."        case .invalidCredentials:            "Command Code session is invalid or expired. Sign in to commandcode.ai again."        case let .networkError(message):            "Command Code network error: \(message)"        case let .apiError(status):            "Command Code API returned status \(status)."        case let .parseFailed(message):            "Could not parse Command Code response: \(message)"        case let .unknownPlan(planID):            "Unknown Command Code plan: \(planID). Add it to CommandCodePlanCatalog."        }    }     public var isAuthRelated: Bool {        switch self {        case .missingCredentials, .invalidCredentials: true        default: false        }    }}