import type { XenarchConfig } from "./types.js";
export declare function ensureConfigDir(): Promise<void>;
export interface LoadConfigResult {
    config: XenarchConfig;
    walletCreated?: {
        address: string;
    };
}
export declare function loadConfig(): Promise<LoadConfigResult>;
/**
 * Generate a new wallet and save it to ~/.xenarch/wallet.json.
 * Returns the address. Private key never leaves the local machine.
 */
export declare function generateWallet(): Promise<{
    address: string;
    privateKey: string;
}>;
/**
 * Get the wallet address derived from the configured private key.
 * Replaces the old `createSigner()` ethers helper — payment signing is
 * now handled inside `payAndFetch` via viem + x402-fetch.
 */
export declare function getWalletAddress(config: XenarchConfig): string;
/**
 * Persist a SIWE session to ~/.xenarch/config.json (snake_case, so the
 * Xenarch CLI reads the same session). Merges into the existing config —
 * preserves the wallet/privateKey and every other key. XEN-411.
 */
export declare function saveSession(sessionToken: string, sessionExpiresAt: string): Promise<void>;
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