import CodexBarCoreimport Foundation struct LLMProxyProviderImplementation: ProviderImplementation {    let id: UsageProvider = .llmproxy     @MainActor    func presentation(context _: ProviderPresentationContext) -> ProviderPresentation {        ProviderPresentation { _ in "api" }    }     @MainActor    func observeSettings(_ settings: SettingsStore) {        _ = settings.llmProxyAPIKey        _ = settings.llmProxyBaseURL    }     @MainActor    func isAvailable(context: ProviderAvailabilityContext) -> Bool {        ProviderTokenResolver.llmProxyToken(environment: context.environment) != nil &&            LLMProxySettingsReader.baseURL(environment: context.environment) != nil    }     @MainActor    func settingsFields(context: ProviderSettingsContext) -> [ProviderSettingsFieldDescriptor] {        [            ProviderSettingsFieldDescriptor(                id: "llmproxy-api-key",                title: "API key",                subtitle: "Stored in ~/.codexbar/config.json. Used for /v1/quota-stats.",                kind: .secure,                placeholder: "proxy key…",                binding: context.stringBinding(\.llmProxyAPIKey),                actions: [],                isVisible: nil,                onActivate: nil),            ProviderSettingsFieldDescriptor(                id: "llmproxy-base-url",                title: "Base URL",                subtitle: "Base URL for the LLM-API-Key-Proxy instance.",                kind: .plain,                placeholder: "https://proxy.example.com",                binding: context.stringBinding(\.llmProxyBaseURL),                actions: [],                isVisible: nil,                onActivate: nil),        ]    }}