enhance(backend): refine moderation log

[syuilo]

What

Resolve #10936

Why

Additional info (optional)

Checklist

• Read the contribution guide
• Test working in a local environment
• (If needed) Add story of storybook
• (If needed) Update CHANGELOG.md
• (If possible) Add tests

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.05% 🎉

Comparison is base (ba6e854) 78.90% compared to head (98064ea) 78.95%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #10939      +/-   ##
===========================================
+ Coverage    78.90%   78.95%   +0.05%     
===========================================
  Files          930      176     -754     
  Lines        98354    23052   -75302     
  Branches      7821      511    -7310     
===========================================
- Hits         77604    18201   -59403     
+ Misses       20750     4851   -15899     

Files Changed	Coverage Δ
packages/frontend/src/router.ts	99.26% <100.00%> (+<0.01%)	⬆️

... and 754 files with indirect coverage changes

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