import Foundation public enum ProviderEnvironmentResolver {    public static func resolve(        base: [String: String],        provider: UsageProvider,        config: ProviderConfig?,        selectedAccount: ProviderTokenAccount?) -> [String: String]    {        var environment = ProviderConfigEnvironment.applyProviderConfigOverrides(            base: base,            provider: provider,            config: config)        guard let selectedAccount else { return environment }         TokenAccountSupportCatalog.scrubEnvironmentForSelectedAccount(            &environment,            provider: provider,            token: selectedAccount.token)        if let override = TokenAccountSupportCatalog.envOverride(            for: provider,            token: selectedAccount.token)        {            environment.merge(override) { _, selectedAccountValue in selectedAccountValue }        }        Self.applyProviderSpecificAccountOverrides(            &environment,            provider: provider,            account: selectedAccount)        return environment    }     private static func applyProviderSpecificAccountOverrides(        _ environment: inout [String: String],        provider: UsageProvider,        account: ProviderTokenAccount)    {        guard provider == .zai else {            return        }         // Team usage scope is account-level only. Accounts without an explicit        // `.team` scope are treated as personal and must not inherit stray team        // context from the base environment or provider config.        let scope: ZaiUsageScope = if let raw = account.sanitizedUsageScope?.lowercased(),                                      let resolved = ZaiUsageScope(rawValue: raw)        {            resolved        } else {            .personal        }         environment.removeValue(forKey: ZaiSettingsReader.bigModelOrganizationKey)        environment.removeValue(forKey: ZaiSettingsReader.bigModelProjectKey)         guard scope == .team else { return }        if let organizationID = account.sanitizedOrganizationID {            environment[ZaiSettingsReader.bigModelOrganizationKey] = organizationID        }        if let projectID = account.sanitizedWorkspaceID {            environment[ZaiSettingsReader.bigModelProjectKey] = projectID        }    }}