/**
 * Authentication configuration — stored at `~/.config/slaminar/auth.json`
 *
 * Security:
 *   - File is written with 0600 permission (owner read/write only)
 *   - Contains API tokens — treat as sensitive
 *
 * Team play:
 *   - Project-level team config (.slaminar/config.json) can specify
 *     preferred provider/model but NEVER stores tokens.
 *   - Personal tokens stay in ~/.config/slaminar/auth.json only.
 */
export type AuthProvider = 'cloudflare' | 'anthropic';
export interface CloudflareAuth {
    accountId: string;
    accountName?: string;
    apiToken: string;
    model: string;
}
export interface AnthropicAuth {
    apiKey: string;
    model: string;
}
export interface AuthConfig {
    version: 1;
    active: AuthProvider | null;
    providers: {
        cloudflare?: CloudflareAuth;
        anthropic?: AnthropicAuth;
    };
    savedAt: string;
}
export declare function getConfigDir(): string;
export declare function getAuthFilePath(): string;
export declare function loadAuthConfig(): AuthConfig | null;
export declare function saveAuthConfig(config: AuthConfig): string;
export declare function clearAuthConfig(): boolean;
export declare function getActiveAuth(config: AuthConfig): CloudflareAuth | AnthropicAuth | null;