curl --request POST \
  --url https://demo.enneo.ai/api/mind/files/manager/file \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "path": "Audiodateien",
  "name": "music.mp3",
  "url": "https://example.com/file.mp3",
  "base64": "data:image/png;base64,iVBORw0KGgo..."
}
'

{
  "success": true,
  "file": {
    "name": "<string>",
    "path": "<string>",
    "url": "<string>",
    "size": 123,
    "contentType": "<string>"
  }
}