/**
 * StatusLine — Ink-rendered status bar.
 *
 * Phase 1 of the Ink migration. Owns nothing today except the spinner /
 * activity message / mode chips. Mounted behind EROSOLAR_INK=1; the rest
 * of the renderer is unchanged. Design goal: prove Ink can ride alongside
 * the existing UnifiedUIRenderer without colliding on stdin or stdout.
 *
 * Render contract: this component is the *only* writer for its row. It
 * does not call console.log, process.stdout.write, or other side-effect
 * sinks. State comes in via props; React's reconciler diffs and Ink
 * commits the minimal escape sequence to the terminal. Frame coalescing
 * and visual-column counting are owned by Ink, not this code.
 */
import React from 'react';
export interface StatusLineProps {
    /** Active line shown next to the spinner. Empty/undefined hides the row. */
    message?: string | null;
    /** Optional secondary line (e.g. mode chips). */
    modeMessage?: string | null;
    /** Show a spinner glyph in front of `message`. */
    spinning?: boolean;
}
export declare const StatusLine: React.FC<StatusLineProps>;
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