curl --request GET \
  --url https://api.factory.ai/api/v0/sessions/{sessionId}/messages \
  --header 'Authorization: Bearer <token>'

{
  "messages": [
    {
      "id": "<string>",
      "role": "user",
      "content": [
        {
          "type": "text",
          "text": "<string>",
          "id": "<string>"
        }
      ],
      "createdAt": 123,
      "updatedAt": 123,
      "parentId": "<string>",
      "visibility": "both",
      "openaiMessageId": "<string>",
      "openaiPhase": "commentary",
      "openaiEncryptedContent": "<string>",
      "openaiReasoningId": "<string>",
      "openaiReasoningSummary": "<string>",
      "geminiThoughtSignature": "<string>",
      "chatCompletionReasoningField": "reasoning",
      "chatCompletionReasoningContent": "<string>",
      "isUserVisible": true,
      "isError": true
    }
  ],
  "pagination": {
    "hasMore": true,
    "nextCursor": "<string>"
  }
}