/**
 * Configuration management for Cortex CLI
 *
 * Thin facade over SettingsLoader — all values come from .env.
 * Preserves the CLIConfig interface for backward compatibility with
 * 35+ command files that import ConfigManager.get('serverUrl') etc.
 */
export interface CLIConfig {
    serverUrl: string;
    defaultModel?: string;
    theme: string;
    timeout: number;
    maxRetries: number;
    logLevel: 'silent' | 'error' | 'info' | 'debug';
}
export declare class ConfigManager {
    private static cachedConfig;
    private static loader;
    /** Override for the project root that holds `.env` (test isolation). */
    private static overrideRoot;
    /** The directory whose `.env` ConfigManager reads/writes. */
    private static rootDir;
    private static getLoader;
    static load(): CLIConfig;
    static get<K extends keyof CLIConfig>(key: K): CLIConfig[K];
    static set<K extends keyof CLIConfig>(key: K, value: CLIConfig[K]): Promise<void>;
    static reset(): Promise<void>;
    static save(config: CLIConfig): Promise<void>;
    static validate(_config: Partial<CLIConfig>): boolean;
    static clearCache(): void;
    static getConfigPath(): string;
    /**
     * Redirect where ConfigManager reads/writes its `.env`. Pass the path to a
     * `.env` file (its directory becomes the project root) or `null` to restore
     * auto-detection. Primarily for test isolation, so tests never mutate the
     * real project `.env`.
     */
    static setConfigPath(envFilePath: string | null): void;
}
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