List sessions

curl --request GET \
  --url https://api.raccoonai.tech/chats \
  --header 'Authorization: Bearer <token>'

{
  "chats": [
    {
      "id": "<string>",
      "chatId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "title": "<string>",
      "userId": "<string>",
      "createdAt": 123,
      "updatedAt": 123,
      "fileSnapshot": {}
    }
  ],
  "meta": {
    "total_count": 123,
    "total_pages": 123,
    "current_page": 123
  }
}