Make itemize breakable inside longtable

I wish to insert long itemized lists inside a longtable.

While itemize environments normally insert pagebreaks at adequate positions, they behave as if they were unbreakable when wrapped inside a longtable. How can I influence this behavior?

documentclass[a4paper]{article}
usepackage{blindtext}
usepackage{longtable}

begin{document}

begin{longtable}{|p{10cm}|}
begin{itemize}
    item   blindtext
    item   blindtext
    item   blindtext
    %pagebreak
    item   blindtext
end{itemize}
end{longtable}

end{document}

When compiling the above, the first page stays empty while the longtable starts on the second page. The entire itemize environment gets stuffed into a single page that overflows at the bottom.

I would like pagebreaks to be inserted anywhere: preferrably between two consecutive item elements (or if an item is too long, it may be broken up). Even inserting a manual pagebreak (as hinted) will just widen the vertical space between the adjacent item entries without producing the expected behavior.

I read elsewhere that this might have to do with some penalty values, but I couldn’t quite figure out how to set them.

EDIT:
The above is an MWE. The real document is a report with very long lists of publications. I use a tabular structure because I need to reproduce an official Word template that has everything in tables. Occasionally I need to use double columns, split cells etc., to reproduce the template, so I really need some longtable type package.

A solution involving other tricks and packages is welcome. I hope you see what I want to achieve.

The real thing is a little more like this:

documentclass[a4paper]{article}
usepackage{longtable}
usepackage{enumitem}
usepackage{hyperref}

begin{document}

begin{longtable}{|p{linewidth}|}

hline
textbf{A1. List all scientific publications}  hline
Authors, titles, references, etc.  hline

setlength{parindent}{1em}
textbf{Journal papers}
begin{enumerate}[start=1,label={[Jarabic*]},leftmargin=10mm,rightmargin=5mm]
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    % many many more items here
end{enumerate}

setlength{parindent}{1em}
textbf{Patents}
begin{enumerate}[start=1,label={[Parabic*]},leftmargin=10mm,rightmargin=5mm]
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    % many many more items here
end{enumerate}

setlength{parindent}{1em}
textbf{Open source code}
begin{enumerate}[start=1,label={[Oarabic*]},leftmargin=10mm,rightmargin=5mm]
    item Authors: textit{Title} url{https://example.com/software}.
    item Authors: textit{Title} url{https://example.com/software}.
    item Authors: textit{Title} url{https://example.com/software}.
    % many many more items here
end{enumerate}

 hline

end{longtable}

end{document}

documentclass[a4paper]{article}
usepackage{enumitem}
usepackage{hyperref}

%---------------- show page layout. don't use in a real document!
usepackage{showframe}
renewcommandShowFrameLinethickness{0.15pt}
renewcommand*ShowFrameColor{color{red}}
%---------------------------------------------------------------%

begin{document}

noindentrule{linewidth}{0.5pt}

textbf{A1. List all scientific publications}

Authors, titles, references, etc. 

noindentrule{linewidth}{0.5pt}

textbf{Journal papers}
begin{enumerate}[start=1,label={[Jarabic*]},leftmargin=10mm,rightmargin=5mm]
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    item Authors, ``Title,'' Journal, vol. 00, pp. 1234-4321, 2020.
    % many many more items here
end{enumerate}

textbf{Patents}
begin{enumerate}[start=1,label={[Parabic*]},leftmargin=10mm,rightmargin=5mm]
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
    item Authors. Title. Code. Publication number: 123456.
end{enumerate}

textbf{Open source code}
begin{enumerate}[start=1,label={[Oarabic*]},leftmargin=10mm,rightmargin=5mm]
    item Authors: textit{Title} url{https://example.com/software}.
    item Authors: textit{Title} url{https://example.com/software}.
    item Authors: textit{Title} url{https://example.com/software}.
    % many many more items here
end{enumerate}
noindentrule{linewidth}{0.5pt}

end{document}