Add a working txt record fetcher that produces the instructions needed.

[schmidtw]

No description provided.

[guardrails]

All previously detected findings have been fixed. Good job! 👍🎉

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[codecov]

Codecov Report

Merging #5 (5cc3a32) into main (d5cbf29) will increase coverage by 2.05%.
The diff coverage is 95.85%.

@@            Coverage Diff             @@
##             main       #5      +/-   ##
==========================================
+ Coverage   91.28%   93.34%   +2.05%     
==========================================
  Files           3        5       +2     
  Lines         264      481     +217     
==========================================
+ Hits          241      449     +208     
- Misses         18       24       +6     
- Partials        5        8       +3     

Flag	Coverage Δ
unittests	93.34% <95.85%> (+2.05%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
internal/jwtxt/token.go	92.85% <92.85%> (ø)
internal/jwtxt/options.go	100.00% <100.00%> (ø)