Polish Commit Message Checklist

[papeh]

• Remove check for whitespace: this is redundant to automatic checks
• Add a step to self-review with AI per our team decision

TODO: ensure commit message line length guidelines match commit hooks (and remove from human checks what the machine already does automatically)

CI-ready checklist

• Commit messages follow .github/commit-guidelines.md (subject ≤ 72 chars, no trailing punctuation; if body present, blank line then ≤ 80-char lines).
• Builds/tests pass locally (or I've run the CI-style build via build.ps1/test.ps1 or MSBuild).
• If this is core-developer AI-assisted work, I followed Docs/workflows/ai-pr-workflow.md and ran pr-preflight or the equivalent branch-readiness review before requesting review.
• For any Src/** folders touched, corresponding AGENTS.md files are updated or explicitly confirmed still accurate.
• Devin has been appeased

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This change is 

[github-actions]

NUnit Tests

    1 files  ±0      1 suites  ±0   8m 11s ⏱️ - 2m 0s
5 780 tests ±0  5 699 ✅ ±0  81 💤 ±0  0 ❌ ±0 
5 789 runs  ±0  5 708 ✅ ±0  81 💤 ±0  0 ❌ ±0 

Results for commit 3ce292f. ± Comparison against base commit ec2ab0a.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 38.07%. Comparing base (ec2ab0a) to head (3ce292f).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1081   +/-   ##
=======================================
  Coverage   38.07%   38.07%           
=======================================
  Files        1499     1499           
  Lines      350154   350154           
  Branches    40241    40241           
=======================================
+ Hits       133306   133314    +8     
+ Misses     187568   187559    -9     
- Partials    29280    29281    +1     

see 2 files with indirect coverage changes

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