Retrieve all campaigns

curl --request GET \
  --url https://atoms-api.smallest.ai/api/v1/campaign \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "page": 1,
  "limit": 10
}'

{
  "status": true,
  "data": [
    {
      "_id": "<string>",
      "name": "<string>",
      "description": "<string>",
      "organization": "<string>",
      "agentId": "<string>",
      "createdBy": "<string>",
      "audienceId": "<string>",
      "participantsCount": 123,
      "createdAt": "2023-11-07T05:31:56Z",
      "updatedAt": "2023-11-07T05:31:56Z",
      "isCampaignInProgress": true,
      "isCampaignCompleted": true
    }
  ]
}