curl -X GET https://api.jasni.ai/api/v1/webhooks/550e8400-e29b-41d4-a716-446655440000 \
  -H "Authorization: Bearer jsk_your_api_key"

{
  "success": true,
  "data": {
    "webhook": {
      "id": "550e8400-e29b-41d4-a716-446655440000",
      "url": "https://your-server.com/webhooks/jasni",
      "events": ["email.received", "email.sent", "email.delivered"],
      "active": true,
      "description": "Production webhook",
      "created_at": "2024-01-15T10:30:00Z",
      "updated_at": "2024-01-15T10:30:00Z"
    }
  }
}