curl -X GET "https://api.trycase.ai/api/v1/suppliers/sup_xyz789" \
  -H "Authorization: Bearer YOUR_API_KEY"

{
  "id": "sup_xyz789",
  "name": "Stag's Leap Wine Cellars",
  "dba_name": null,
  "location": "Napa, CA",
  "address": {
    "city": "Napa",
    "state": "CA"
  },
  "total_products": 42,
  "created_at": "2025-01-01T00:00:00Z"
}