Get the transcript of a conversation

Oldest first — the order of a transcript, so it reads the way it was spoken. Takes `limit` but no `offset`, and that is deliberate rather than an omission: messages live in two different stores depending on how the channel arrived (WhatsApp, Instagram and Messenger come through the provider; the web chat is handled by the agent runtime), and the reply also stitches together rotated threads. There is no single ordering to offset into, so offering one would return wrong pages. Ask for the number of messages you need.

curl -X GET "https://example.com/v1/conversations/string/messages"

{  "data": [    {      "content": "string",      "conversationId": "string",      "createdAt": "string",      "direction": "string",      "id": "string",      "messageType": "string",      "senderName": "string"    }  ],  "total": 0}