import type { SupabaseClient } from '@supabase/supabase-js';
export interface ScreenshotSelectorMemoryUpdate {
    stepSignature: string;
    selector: string;
    source: 'agent' | 'deterministic' | 'manual';
    success: boolean;
}
/** Map a viewport width to a device category for selector memory scoping. */
export declare function getViewportCategory(width: number): 'mobile' | 'tablet' | 'desktop';
export declare function loadScreenshotSelectorMemory(supabase: SupabaseClient, params: {
    projectId: string | null;
    presetId?: string | null;
    domain: string;
    lang: string;
    theme: 'light' | 'dark';
    /** Optional viewport width — when provided, filters selectors by viewport category. */
    viewportWidth?: number | null;
}): Promise<Record<string, string[]>>;
export declare function persistScreenshotSelectorMemoryUpdates(supabase: SupabaseClient, params: {
    projectId: string | null;
    presetId?: string | null;
    domain: string;
    lang: string;
    theme: 'light' | 'dark';
    viewportWidth?: number | null;
}, updates: ScreenshotSelectorMemoryUpdate[]): Promise<void>;
export declare function extractSelectorUpdates(actions: Array<{
    action: string;
    params: Record<string, unknown>;
    success: boolean;
}>): ScreenshotSelectorMemoryUpdate[];