Generate a campaign

curl -X POST http://localhost:4000/api/v1/campaigns/generate \
  -H "authorization: Bearer $TOKEN" \
  -H 'content-type: application/json' \
  -d '{
    "objective": "Re-engage customers who have not bought in three months",
    "segmentId": "SEGMENT_ID",
    "channel": "sms",
    "tone": "friendly"
  }'

# draft -> ready: the draft has been reviewed
curl -X PATCH http://localhost:4000/api/v1/campaigns/CAMPAIGN_ID/status \
  -H "authorization: Bearer $TOKEN" -H 'content-type: application/json' \
  -d '{"status":"ready"}'

# ready -> sent: it has been dispatched
curl -X PATCH http://localhost:4000/api/v1/campaigns/CAMPAIGN_ID/status \
  -H "authorization: Bearer $TOKEN" -H 'content-type: application/json' \
  -d '{"status":"sent"}'