Documentation/2025 12 update document for 0.5.x

[takapi327]

Implementation Details

Fixes

Fixes #xxxxx

Pull Request Checklist

• Wrote unit and integration tests
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code formatting by scalafmt (sbt scalafmtAll command execution)
• Add copyright headers to new files

References

[codecov-commenter]

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.40%. Comparing base (272cf4e) to head (b99bb51).
⚠️ Report is 6 commits behind head on series/0.5.x.
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Additional details and impacted files

@@               Coverage Diff                @@
##           series/0.5.x     #608      +/-   ##
================================================
- Coverage         84.54%   84.40%   -0.14%     
================================================
  Files               217      217              
  Lines             11561    11653      +92     
  Branches           1159     1191      +32     
================================================
+ Hits               9774     9836      +62     
- Misses             1787     1817      +30     

Flag	Coverage Δ
3.3.7	84.85% <ø> (-0.07%)	⬇️
3.7.4	84.95% <ø> (-0.01%)	⬇️

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