curl --location '{{baseUrl}}/api/whatsapp/get-whatsapp-agent/6894a98a7fcde123456789ab' \
--header 'Authorization: Bearer {{authToken}}'

{
  "status": true,
  "code": 200,
  "message": "WhatsApp Agent fetched successfully",
  "data": {
    "_id": "6894a98a7fcde123456789ab",
    "agentName": "Support Assistant",
    "phoneNumberId": "123456789012345",
    "systemPrompt": "You are a helpful customer support assistant.",
    "welcomeMessage": "Hello! How can I help you today?",
    "knowledgeBase": [
      "6892fd48bde23a1234567890"
    ],
    "model": "gpt-4.1",
    "temperature": 0.7,
    "status": "active",
    "createdAt": "2026-07-21T13:45:18.000Z",
    "updatedAt": "2026-07-21T14:12:30.000Z"
  }
}