Approve a DM pairing request for a channel.
curl -X POST https://api.chowder.dev/v1/instances/ins_abc123/channels/whatsapp/pair \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "code": "ABC-1234" }'
{ "channel": "whatsapp", "code": "ABC-1234", "status": "paired", "output": "Pairing approved successfully." }
channels