/**
 * Fetches icon metadata from the CDN and writes compact JSON files per library:
 *   metadata/packages/icons/default/content.json  — default library content icons
 *   metadata/packages/icons/default/system.json   — default library UI/system icons
 *   metadata/packages/icons/sd-status-assets/status.json — status indicator icons
 *   metadata/packages/icons/sd-multi-theming/content.json — multi-theme content icons
 *   metadata/packages/icons/sd-multi-theming/system.json — multi-theme system icons
 *
 * Each icon: { technicalId, displayNameDe, tags }
 * Use as <sd-icon name="content/{technicalId}"> or <sd-icon name="system/{technicalId}">
 */
export declare const buildIcons: () => Promise<void>;