/**
 * Server mode management: local-only vs relay-configured.
 *
 * Persists user's choice to skip relay permanently by storing a mode marker
 * in the existing config.enc encrypted storage.
 */
export type ServerMode = 'local' | 'configured' | null;
/**
 * Mark server as local-only (user explicitly skipped relay).
 * Writes {"_mode": "local"} to config.enc[serverName].
 */
export declare function setLocalMode(serverName: string): Promise<void>;
/**
 * Get server mode.
 * Returns "local" if local mode set, "configured" if has other keys, null if empty.
 */
export declare function getMode(serverName: string): Promise<ServerMode>;
/**
 * Remove mode marker (allows relay to trigger again).
 * Deletes the server's config entry entirely.
 */
export declare function clearMode(serverName: string): Promise<void>;
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