import AppKitimport CodexBarCoreimport Foundationimport SwiftUI struct T3ChatProviderImplementation: ProviderImplementation {    let id: UsageProvider = .t3chat     @MainActor    func observeSettings(_ settings: SettingsStore) {        _ = settings.t3ChatCookieSource        _ = settings.t3ChatCookieHeader    }     @MainActor    func settingsSnapshot(context: ProviderSettingsSnapshotContext) -> ProviderSettingsSnapshotContribution? {        .t3chat(context.settings.t3ChatSettingsSnapshot(tokenOverride: context.tokenOverride))    }     @MainActor    func settingsPickers(context: ProviderSettingsContext) -> [ProviderSettingsPickerDescriptor] {        let cookieBinding = Binding(            get: { context.settings.t3ChatCookieSource.rawValue },            set: { raw in                context.settings.t3ChatCookieSource = ProviderCookieSource(rawValue: raw) ?? .auto            })        let cookieOptions = ProviderCookieSourceUI.options(            allowsOff: false,            keychainDisabled: context.settings.debugDisableKeychainAccess)         let cookieSubtitle: () -> String? = {            ProviderCookieSourceUI.subtitle(                source: context.settings.t3ChatCookieSource,                keychainDisabled: context.settings.debugDisableKeychainAccess,                auto: "Automatically imports browser cookies.",                manual: "Paste a Cookie header or cURL capture from T3 Chat settings.",                off: "Paste a Cookie header or cURL capture from T3 Chat settings.")        }         return [            ProviderSettingsPickerDescriptor(                id: "t3chat-cookie-source",                title: "Cookie source",                subtitle: "Automatically imports browser cookies.",                dynamicSubtitle: cookieSubtitle,                binding: cookieBinding,                options: cookieOptions,                isVisible: nil,                onChange: nil),        ]    }     @MainActor    func settingsFields(context: ProviderSettingsContext) -> [ProviderSettingsFieldDescriptor] {        [            ProviderSettingsFieldDescriptor(                id: "t3chat-cookie",                title: "T3 Chat cookie",                subtitle: "Paste a Cookie header or full cURL capture from T3 Chat settings.",                kind: .secure,                placeholder: "Cookie: ...",                binding: context.stringBinding(\.t3ChatCookieHeader),                actions: [                    ProviderSettingsActionDescriptor(                        id: "t3chat-open-settings",                        title: "Open T3 Chat Settings",                        style: .link,                        isVisible: nil,                        perform: {                            if let url = URL(string: "https://t3.chat/settings/customization") {                                NSWorkspace.shared.open(url)                            }                        }),                ],                isVisible: { context.settings.t3ChatCookieSource == .manual },                onActivate: nil),        ]    }}