import CodexBarCoreimport Foundation struct LiteLLMProviderImplementation: ProviderImplementation {    let id: UsageProvider = .litellm     @MainActor    func presentation(context _: ProviderPresentationContext) -> ProviderPresentation {        ProviderPresentation { _ in "api" }    }     @MainActor    func observeSettings(_ settings: SettingsStore) {        _ = settings.liteLLMAPIKey        _ = settings.liteLLMBaseURL    }     @MainActor    func isAvailable(context: ProviderAvailabilityContext) -> Bool {        ProviderTokenResolver.liteLLMToken(environment: context.environment) != nil &&            LiteLLMSettingsReader.baseURL(environment: context.environment) != nil    }     @MainActor    func settingsFields(context: ProviderSettingsContext) -> [ProviderSettingsFieldDescriptor] {        [            ProviderSettingsFieldDescriptor(                id: "litellm-api-key",                title: "API key",                subtitle: "LiteLLM virtual key used to read its own spend and budget.",                kind: .secure,                placeholder: "sk-…",                binding: context.stringBinding(\.liteLLMAPIKey),                actions: [],                isVisible: nil,                onActivate: nil),            ProviderSettingsFieldDescriptor(                id: "litellm-base-url",                title: "Base URL",                subtitle: "LiteLLM proxy base URL. /v1 suffixes are accepted and stripped for management endpoints.",                kind: .plain,                placeholder: "https://litellm.example.com",                binding: context.stringBinding(\.liteLLMBaseURL),                actions: [],                isVisible: nil,                onActivate: nil),        ]    }}