curl --location '{{baseUrl}}/api/whatsapp/save-whatsapp-agent' \
--header 'Authorization: Bearer {{authToken}}' \
--header 'Content-Type: application/json' \
--data '{
  "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": true,
  "code": 201,
  "message": "WhatsApp Agent created successfully",
  "data": {
    "_id": "6894a98a7fcde123456789ab",
    "agentName": "Support Assistant",
    "phoneNumberId": "123456789012345",
    "status": "active",
    "createdAt": "2026-07-21T13:45:18.000Z"
  }
}