Switch to using effectful

[tommyengstrom]

Big refactor that change domaindriven to use Effectful.

• build using nightly
• use latest nightly
• towards indexed model support
• it compiles again
• Fix test suite
• Get test suite to pass
• Writing extra tests
• Sequential writes on same index works
• Use advisory locks
• fix dependencies
• most consistent parameter order
• export indexed handlers
• Clean up and change resolver
• tmp, experimenting
• prototyping
• more prototyping
• clean up
• fix various things
• remove model parameter for command in runTransaction
• I think the effectful version works now, but I broke the old version
• include ShapeCoercible
• use plugin and improve examples
• Make it compile and remove old domaindriven version
• tmp
• it compiles
• postgresql example
• migration example
• minimal intro
• tmp
• upgrade lts and include missings deps
• switch to using cabal
• spec for how to support postgres state
• include readme
• transactions get the current model as input
• run-ghcid
• add flake
• log hook failures
• improve sql generation
• remove redundant model read
• test more
• add hspec-discover dependency
• update CI to use nix flake dev shell with cabal
• add cabal update step and fix caching
• update documentation
• Make it easier for users to change pool settings
• refactor hooks
• Better examples
• rename modules