SF-3770 Separate books in the Serval Admin CSV with semicolons

[pmachapman]

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This change is 

[devin-ai-integration]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.27%. Comparing base (b691ada) to head (9425633).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

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##           master    #3782   +/-   ##
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  Coverage   81.27%   81.27%           
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  Files         622      622           
  Lines       39322    39322           
  Branches     6415     6415           
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  Hits        31958    31958           
  Misses       6366     6366           
  Partials      998      998           

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[marksvc]

Ah, one of the motivations for formats like Rows of String Values (RSV) :-)
I've also recently become aware of JSONL, but haven't looked at it enough to know if I prefer it over RSV.

(Not to imply that everyone can open a RSV or JSONL file as easily as a CSV file in 2026.)

[devin-ai-integration]

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View 2 additional findings in Devin Review.

[Nateowami]

@marksvc This doesn't actually have anything to do with CSV using commas. It's so it's so a list of books and chapters can easily be parsed (e.g. GEN 3,4; RUT), by not using the same separator for both books and chapters.