curl --request GET \
  --url https://api.wacht.dev/api/agent/contexts/{id}/messages \
  --cookie session_id=

{
  "data": [
    {
      "id": "msg_abc123",
      "role": "user",
      "content": {
        "type": "text",
        "text": "Hello, how can you help?"
      },
      "timestamp": "2024-01-15T10:30:00Z",
      "metadata": {}
    }
  ],
  "has_more": false
}