import Foundation public struct AlibabaTokenPlanSettingsReader: Sendable {    public static let cookieHeaderKey = "ALIBABA_TOKEN_PLAN_COOKIE"    public static let hostKey = "ALIBABA_TOKEN_PLAN_HOST"    public static let quotaURLKey = "ALIBABA_TOKEN_PLAN_QUOTA_URL"     public static func cookieHeader(        environment: [String: String] = ProcessInfo.processInfo.environment) -> String?    {        self.cleaned(environment[self.cookieHeaderKey])    }     public static func hostOverride(        environment: [String: String] = ProcessInfo.processInfo.environment) -> String?    {        guard let raw = self.cleaned(environment[self.hostKey]) else { return nil }        if let scheme = URL(string: raw)?.scheme {            return scheme.lowercased() == "https" ? raw : nil        }        return raw    }     public static func quotaURL(        environment: [String: String] = ProcessInfo.processInfo.environment) -> URL?    {        guard let raw = self.cleaned(environment[self.quotaURLKey]) else { return nil }        if let url = URL(string: raw), let scheme = url.scheme {            return scheme.lowercased() == "https" ? url : nil        }        return URL(string: "https://\(raw)")    }     static func cleaned(_ raw: String?) -> String? {        guard var value = raw?.trimmingCharacters(in: .whitespacesAndNewlines), !value.isEmpty else {            return nil        }        if (value.hasPrefix("\"") && value.hasSuffix("\"")) ||            (value.hasPrefix("'") && value.hasSuffix("'"))        {            value = String(value.dropFirst().dropLast())        }        value = value.trimmingCharacters(in: .whitespacesAndNewlines)        return value.isEmpty ? nil : value    }} public enum AlibabaTokenPlanSettingsError: LocalizedError, Sendable {    case missingCookie(details: String? = nil)    case invalidCookie     public var errorDescription: String? {        switch self {        case let .missingCookie(details):            let base = "No Alibaba Token Plan session cookies found in browsers. " +                "Sign in to Bailian in Chrome, allow CodexBar to access Chrome Safe Storage in Keychain Access, " +                "or paste a manual Cookie header."            guard let details, !details.isEmpty else { return base }            return "\(base) \(details)"        case .invalidCookie:            return "Alibaba Token Plan cookie header is invalid."        }    }}