curl --request GET \
  --url https://core.ravenna.ai/api/ai-brief-schedules \
  --header 'x-ravenna-api-token: <api-key>'

{
  "items": [
    {
      "id": "<string>",
      "dashboardId": "<string>",
      "workspaceId": "<string>",
      "organizationId": "<string>",
      "userId": "<string>",
      "cadence": "daily",
      "slackChannelIds": [
        "<string>"
      ],
      "time": "<string>",
      "day": 123,
      "scheduleId": "<string>",
      "isActive": true,
      "lastRunAt": "<string>",
      "nextScheduledAt": "<string>",
      "createdAt": "<string>",
      "updatedAt": "<string>"
    }
  ],
  "totalCount": 123,
  "nextCursor": "<string>"
}