/**
 * Disk space diagnostic check.
 *
 * Uses `df` command to check available disk space on the root partition.
 * Thresholds: warn < 1GB, fail < 100MB.
 */
import type { DiagnosticDeps, DiagnosticResult } from '../types.js';
export declare function checkDiskSpace(_deps: DiagnosticDeps): Promise<DiagnosticResult>;
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