/**
 * Display-safe text sanitization (QUALITY visual correctness / V2-094).
 *
 * External content (tool output, model text, paste) can carry C0/C1 controls
 * and OSC/CSI sequences that corrupt a terminal or inject misleading UI.
 * This pure helper strips those bytes while preserving ordinary newlines,
 * tabs, and Unicode. Clipboard/export paths should run content through here
 * before writing terminal-facing strings.
 */
export declare function stripAnsiSequences(text: string): string;
export declare function stripControlChars(text: string): string;
/** Full display sanitize: ANSI first, then remaining control characters. */
export declare function sanitizeDisplayText(text: string): string;