import Foundationimport Testing@testable import CodexBarCore @Suitestruct CodexOAuthCredentialsStoreLinuxTests {    @Test    func saveKeepsAuthJSONPrivate() throws {        #if os(macOS) || os(Linux)        let codexHome = FileManager.default.temporaryDirectory            .appendingPathComponent("codex-oauth-permissions-\(UUID().uuidString)", isDirectory: true)        defer { try? FileManager.default.removeItem(at: codexHome) }         let credentials = CodexOAuthCredentials(            accessToken: "access-token",            refreshToken: "refresh-token",            idToken: "id-token",            accountId: "account-123",            lastRefresh: Date())         try CodexOAuthCredentialsStore.save(credentials, env: ["CODEX_HOME": codexHome.path])         let authURL = codexHome.appendingPathComponent("auth.json")        let attributes = try FileManager.default.attributesOfItem(atPath: authURL.path)        let permissions = try #require(attributes[.posixPermissions] as? NSNumber)        #expect(permissions.intValue & 0o777 == 0o600)        #else        #expect(Bool(true))        #endif    }}