export declare const WORKER_ID_PATTERN: RegExp;
export interface DeviceState {
    workerId: string;
    /** Worker-bound child PAT minted by the installation login. */
    workerApiToken?: string;
    /** Epoch ms hard expiry for workerApiToken. */
    expiresAt?: number;
}
export declare function loadDeviceState(context: string, platform: string): Promise<DeviceState | null>;
/** Replace credentials for an already-saved identity without changing its id. */
export declare function updateDeviceState(context: string, platform: string, state: DeviceState): Promise<void>;
/** Persist one completed setup without allowing two first boots to race. */
export declare function saveDeviceState(context: string, platform: string, state: DeviceState): Promise<void>;
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