List campaigns

curl --request GET \
  --url https://api.vidjutsu.ai/v1/campaigns \
  --header 'X-Api-Key: <api-key>'

{
  "data": [
    {
      "campaignId": "<string>",
      "config": {},
      "status": "draft",
      "estimatedCredits": 123,
      "videoIds": [
        "<string>"
      ],
      "createdAt": 123,
      "updatedAt": 123
    }
  ]
}