curl -X PUT https://api.bodhveda.com/preferences \
  -H "Authorization: Bearer bv_xxxxxxxxx" \
  -H "Content-Type: application/json" \
  -d '[
    { "channel": "digest", "topic": "none", "event": "sent", "medium": "email", "label": "Daily digest", "default_enabled": true }
  ]'

{
  "message": "Project preferences upserted",
  "data": [
    {
      "id": 12,
      "project_id": 1,
      "target": {
        "channel": "digest",
        "topic": "none",
        "event": "sent"
      },
      "medium": "email",
      "default_enabled": true,
      "label": "Daily digest",
      "created_at": "2025-11-07T05:31:56Z",
      "updated_at": "2025-11-07T05:31:56Z"
    }
  ]
}