Create an automation from txt-File with highlights to Readwise as Highlights

Hello there!
I use Readwise for manage my annotations and highlights among other resources also from my tolino-eBook reader. So this reader save the highlights and notes in a single file notes.txt. An example content is this:
"


Konzentriert arbeiten (Newport, Cal)
Markierung auf Seite 19: "Allgemein bildet das Fehlen von Ablenkungen in meinem Leben ein Gegengewicht zu dem nervösen Hintergrundgeräusch mentaler Geschäftigkeit, "
Hinzugefügt am 31.07.2023 | 21:59


Konzentriert arbeiten (Newport, Cal)
Notiz auf Seite 21: Buch zur zeigleisigen Entwicklung der Wirtschaft. Und Klassifizierung der “Gewinner”, dieser Entwicklung, in 3 Gruppen.
“Race Against the Machine”
Hinzugefügt am 31.07.2023 | 22:11


" (the first highlight is a only a highlight and the second is a highlight with a note, after "Notiz auf Seite 21: " is this note).

So now I am try to automate this such that I save the notes.txt-File in one folder in my cloud (pCloud) and than I tried to use a javascript script to convert the “unfortunetly” file format from the notes.txt to a csv-Format.
This is my workflow yet:

But the main problem is the javascript because that does not work, especially I struggle with the hex-format from the “data”:

Are there any other person who have already automate this or canhelp me?