perf(backend): avoid N+1 selects from user table when packing many entities

[zyoshoka]

What

#13910 に書いたことを実施しました。

Why

Closes #13910

Additional info (optional)

とりあえず https://gist.github.com/zyoshoka/647b9e9b74313e04c80a2230e014b088 のように書いたパフォーマンス計測用コードを packages/backend/test/e2e 直下に置いて E2E テストを実行すると次のようになりました。

Before

admin/abuse-user-reports: 545.7474999999977 ms
blocking/list: 508.15108300000065 ms
users/show: 436.0121250000011 ms

After

admin/abuse-user-reports: 49.55412500000239 ms
blocking/list: 36.62649999999849 ms
users/show: 27.77375000000029 ms

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

[github-actions]

このPRによるapi.jsonの差分

差分はこちら

Get diff files from Workflow Page

[codecov]

Codecov Report

Attention: Patch coverage is 5.59701% with 253 lines in your changes are missing coverage. Please review.

Project coverage is 64.94%. Comparing base (cf670e8) to head (f72992f).
Report is 2 commits behind head on develop.

Files	Patch %	Lines
...kend/src/core/entities/ReversiGameEntityService.ts	0.00%	46 Missing ⚠️
.../src/core/entities/AbuseUserReportEntityService.ts	7.14%	26 Missing ⚠️
...nd/src/core/entities/FollowRequestEntityService.ts	12.00%	22 Missing ⚠️
...ackend/src/core/entities/FollowingEntityService.ts	0.00%	19 Missing ⚠️
...ckend/src/core/entities/InviteCodeEntityService.ts	5.00%	19 Missing ⚠️
...backend/src/core/entities/BlockingEntityService.ts	0.00%	10 Missing ⚠️
...es/backend/src/core/entities/FlashEntityService.ts	0.00%	10 Missing ⚠️
...nd/src/core/entities/ModerationLogEntityService.ts	16.66%	10 Missing ⚠️
...s/backend/src/core/entities/MutingEntityService.ts	0.00%	10 Missing ⚠️
...end/src/core/entities/RenoteMutingEntityService.ts	0.00%	10 Missing ⚠️
... and 14 more

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #13911      +/-   ##
===========================================
- Coverage    65.02%   64.94%   -0.09%     
===========================================
  Files          989      989              
  Lines       112563   112745     +182     
  Branches      4466     5761    +1295     
===========================================
+ Hits         73192    73219      +27     
+ Misses       39340    38084    -1256     
- Partials        31     1442    +1411     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[syuilo]

👍👍