enhance(backend): チャートの処理を一つずつ行うことでDBの同時接続とタイムアウトを削減

[kakkokari-gtyih]

What

書いてあるとおり

Why

All bulk chart operations are awaited instead of being mass-dispatched. This greatly reduces database load and resource contention, avoiding stalls, lags, and transaction errors while charts are ticked.

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

[github-actions]

このPRによるapi.jsonの差分
差分はありません。
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[codecov]

Codecov Report

Attention: Patch coverage is 3.12500% with 31 lines in your changes missing coverage. Please review.

Project coverage is 40.31%. Comparing base (13439e0) to head (0d801ef).

Files with missing lines	Patch %	Lines
...rc/queue/processors/CleanChartsProcessorService.ts	0.00%	12 Missing ⚠️
...src/queue/processors/TickChartsProcessorService.ts	0.00%	12 Missing ⚠️
...s/backend/src/core/chart/ChartManagementService.ts	20.00%	4 Missing ⚠️
...c/queue/processors/ResyncChartsProcessorService.ts	0.00%	3 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop   #15239   +/-   ##
========================================
  Coverage    40.31%   40.31%           
========================================
  Files         1564     1564           
  Lines       198083   198077    -6     
  Branches      3837     3839    +2     
========================================
  Hits         79863    79863           
- Misses      117617   117643   +26     
+ Partials       603      571   -32     

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[syuilo]

並列で処理可能なものを直列処理するのは自然ではないから、そうする理由を書いておいた方が良さそう