/**
 * Server-wide error handler for the MastraCode web surface.
 *
 * Installed as `server.onError`, which the deployer applies to the top-level
 * Hono app AND the custom-route sub-app (`/web/*`, `/auth/*`) — without it,
 * unexpected route errors surface as an opaque `Internal Server Error` with no
 * server-side trace.
 */
import type { Context } from 'hono';
/** Handle a route error: log full detail server-side, return structured JSON. */
export declare function handleServerError(err: Error, c: Context): Response;
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