Feat: Run incremental_vacuum and optimize

[chakflying]

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Description

Follow up on #2800, After discussion in #3286, here are the optimizations implemented:

• Every 5 minutes, run incremental_vacuum(200) and wal_checkpoint(PASSIVE)
• Every night after clearing old data, run optimize

Number 200 is chosen arbitrarily after reading this article.

Ideally, we need to merge this before 1.23. Have not tested this in a heavily loaded server. More actual testing would be preferred.

Type of change

• Other

Checklist

• My code follows the style guidelines of this project
• I ran ESLint and other linters for modified files
• I have performed a self-review of my own code and tested it
• I have commented my code, particularly in hard-to-understand areas
  (including JSDoc for methods)
• My changes generate no new warnings
• My code needed automated testing. I have added them (this is optional task)

Screenshots (if any)