/**
 * Heuristic auth-form detection. Strategy:
 *
 * 1. Find every visible `input[type=password]` on the page.
 * 2. For each, walk up to the nearest `form` (or document body if
 *    formless) and look for sibling/descendant fields: a
 *    username/email-style input + a submit affordance.
 * 3. Classify login vs signup by:
 *      - URL hint (`/signup`, `/register`, `/join` → signup;
 *        `/login`, `/signin` → login)
 *      - presence of a confirm-password input (signup)
 *      - presence of additional fields like `name` (signup)
 *      - default: login (more common on a generic `/auth` URL)
 *
 * We deliberately don't try to be clever about i18n. If the page has
 * `<input type=password>` it's something we can attack. If we can't
 * find a submit button it isn't.
 */
import type { Page } from "playwright";
import type { DetectedAuthForm } from "./types.js";
export declare function detectAuthForm(page: Page): Promise<DetectedAuthForm | null>;
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