curl --request POST \
  --url https://app.autoposting.ai/api-proxy/kbs/{kbId}/search \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "query": "product pricing strategy",
  "limit": 5
}
'

{
  "success": true,
  "data": {
    "results": [
      {
        "documentId": "doc_01HXYZ",
        "documentName": "Pricing Guide 2024.pdf",
        "chunk": "Our tiered pricing model starts at $29/month...",
        "score": 0.94
      }
    ]
  }
}