Render one final Flaut.Travel destination widget after all discover_destinations calls are complete. Call this tool exactly once and pass the complete structuredContent results unchanged, in the order they should be combined. Results must use the same locale; filters, pages, and limits may differ. The tool preserves first-seen search order, deduplicates cities, limits the final presentation to 20 destinations, and renders a clear empty state when every result is empty. The attached Flaut.Travel component is the complete authoritative presentation; do not recreate it as a separate carousel, card grid, list, or table.