/**
 * Builds a fetchable URL from a caller-provided host and an eve route path.
 *
 * `host` may be an absolute origin (`https://agent.example.com`) or a
 * same-origin prefix (`/api`). Prefixes are important for browser clients that
 * talk to an app-owned proxy instead of the eve deployment directly.
 */
export declare function createClientUrl(host: string, routePath: string, searchParams?: Readonly<Record<string, string>>): string;