horse-show — connection check

Querying v_upcoming_shows as anon, server-side:

[
  {
    "slug": "rehearsal-show-2026",
    "name_en": "Rehearsal Show 2026",
    "name_ar": "بطولة تدريبية للتحضير 2026",
    "level": "Local",
    "organizer": "Internal rehearsal — not a real show",
    "country": "SA",
    "city": "Riyadh",
    "venue": "Practice arena",
    "start_date": "2026-09-20",
    "end_date": "2026-09-21",
    "poster_url": null
  }
]