/**
 * Settings screen component
 */
import { type ConfigSchema } from '../../config/index';
export interface SettingItem {
    /** Must be a known config key — typed as `keyof ConfigSchema` so adding a
     *  setting with an unknown key is a compile error, not a silent runtime
     *  no-op. */
    key: keyof ConfigSchema;
    label: string;
    getValue: () => string | number | boolean;
    type: 'number' | 'select' | 'text';
    min?: number;
    max?: number;
    step?: number;
    options?: {
        value: string | number | boolean;
        label: string;
    }[];
}
export declare const SETTINGS: SettingItem[];
export interface SettingsState {
    selectedIndex: number;
    editing: boolean;
    editValue: string;
}
/**
 * Format value for display
 */
/**
 * Handle settings key
 * Returns: { handled: boolean, close: boolean, notify?: string }
 */
export declare function handleSettingsKey(key: string, ctrl: boolean, state: SettingsState): {
    handled: boolean;
    close: boolean;
    notify?: string;
    newState: SettingsState;
};