Toughen rough linting

[tony]

Changes

ruff linting

flake8-commas (COM)

• https://docs.astral.sh/ruff/rules/#flake8-commas-com
• https://pypi.org/project/flake8-commas/

flake8-builtins (A)

• https://docs.astral.sh/ruff/rules/#flake8-builtins-a
• https://pypi.org/project/flake8-builtins/

flake8-errmsg (EM)

• https://docs.astral.sh/ruff/rules/#flake8-errmsg-em
• https://pypi.org/project/flake8-errmsg/

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (ff42f89) 67.16% compared to head (7a053e2) 67.16%.

❗ Current head 7a053e2 differs from pull request most recent head 5793cbb. Consider uploading reports for the commit 5793cbb to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #313   +/-   ##
=======================================
  Coverage   67.16%   67.16%           
=======================================
  Files          12       12           
  Lines        1261     1261           
  Branches      231      231           
=======================================
  Hits          847      847           
  Misses        358      358           
  Partials       56       56           

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