/**
 * Environment + identity capture. Everything here is defensive: no call may
 * throw, because these run inside user event handlers and during init.
 */
import type { FeedbackPayload } from "../types";
/**
 * RFC-4122 v4 UUID. Prefers `crypto.randomUUID` (secure contexts), falls back
 * to `crypto.getRandomValues`, and finally to a non-crypto Math.random source
 * so it NEVER throws (e.g. insecure origins / very old engines).
 */
export declare function uuid(): string;
/** location.pathname + search + hash */
export declare function route(): string;
/** ISO-8601 timestamp with timezone designator (Z). */
export declare function nowISO(): string;
/** Best-effort environment snapshot. Every probe fails soft (0 / false). */
export declare function env(): FeedbackPayload["env"];