curl -X POST https://api.rapidcall.ai/api/kb/search \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "query": "What is the return policy?",
    "folderIds": ["kb_folder_001"],
    "limit": 5
  }'

{
  "results": [
    {
      "documentId": "doc_003",
      "documentName": "Return Policy",
      "content": "Our return policy allows returns within 30 days of purchase...",
      "score": 0.92
    },
    {
      "documentId": "doc_005",
      "documentName": "Shipping FAQ",
      "content": "If you need to return an item, please contact support...",
      "score": 0.78
    }
  ]
}