export declare class ConfigManager {
    private logger;
    private configDir;
    private configFile;
    private secureCredentials;
    constructor();
    initializeProject(): Promise<void>;
    set(key: string, value: unknown): Promise<void>;
    get(key: string): Promise<unknown>;
    getAll(): Promise<Record<string, unknown>>;
    getConfig(): Promise<Record<string, unknown>>;
    delete(key: string): Promise<void>;
    hasProjectConfig(): boolean;
    private ensureConfigDir;
    private readConfig;
    private writeConfig;
    private setNestedValue;
    private getNestedValue;
    private deleteNestedValue;
    setCredential(service: string, key: string, value: string): Promise<void>;
    getCredential(service: string, key: string): Promise<string | undefined>;
    removeCredential(service: string, key: string): Promise<void>;
    listCredentialServices(): Promise<string[]>;
    migrateToSecureCredentials(): Promise<boolean>;
    validateApiKey(apiKey: string, provider: 'openai' | 'openrouter' | 'anthropic'): boolean;
    runSecurityAudit(projectPath?: string): Promise<any>;
    isSecureCredentialsEnabled(): Promise<boolean>;
}
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