/**
 * Page-error buffer for `page_errors` (schema v2). Listens to window "error"
 * and "unhandledrejection" — console is NEVER patched — and keeps the last 5
 * messages (each ≤200 chars, oldest first). Fully passive: never preventDefault,
 * never rethrows, never throws itself. Gated by config `captureErrors`.
 */
/** Reset the buffer and (when enabled) install the window listeners. */
export declare function startErrors(captureErrors: boolean): void;
/** Copy of the buffered messages, oldest first. [] when capture is off. */
export declare function getPageErrors(): string[];
/** Remove the listeners (destroy()). The buffer is cleared on next start. */
export declare function stopErrors(): void;