frontend/src/utils/format-duration.ts

/**
 * Format duration in milliseconds to a human-readable string
 * Supports milliseconds, seconds, and minutes
 */
export function formatDuration(ms: number): string {
  if (!Number.isFinite(ms) || ms <= 0) return '0ms';
  if (ms < 1) return `${ms.toFixed(3)}ms`;
  if (ms < 1000) return `${ms.toFixed(0)}ms`;
  if (ms < 60000) return `${(ms / 1000).toFixed(1)}s`;
  return `${(ms / 60000).toFixed(1)}m`;
}