/**
 * Bot /upgrade command — check GitHub for latest release, install, restart.
 *
 * Replaces the complex update-cli pipeline with a simple:
 *   1. Check GitHub releases (+ npm fallback)
 *   2. npm install -g the tarball or package
 *   3. Restart gateway + bot service
 *
 * Surfaces: Telegram /upgrade, Discord /upgrade, TUI /upgrade
 */
type InstallSource = "github" | "npm" | "unknown";
export interface UpgradeResult {
    success: boolean;
    message: string;
    fromVersion?: string;
    toVersion?: string;
    needsRestart?: boolean;
    error?: string;
}
type ProgressCallback = (message: string) => Promise<void>;
export declare function performBotUpgrade(onProgress: ProgressCallback): Promise<UpgradeResult>;
/**
 * Check for available updates without performing upgrade.
 */
export declare function checkBotUpdate(): Promise<{
    available: boolean;
    current: string;
    latest?: string;
    source?: InstallSource;
}>;
export {};