Log refactor with MonadReader/Writer

[yellowbean]

• https://www.adit.io/posts/2013-06-10-three-useful-monads.html
• http://cmsc-16100.cs.uchicago.edu/2021-autumn/Lectures/15/writer-reader.php
• https://mmhaskell.com/monads/reader-writer

[yellowbean]

there are two places I can think of to refactor :

• factor out logs during the run
• factor our the RunContext which contains the pool flow and pool assumptions