misc: Extract Curio sources

[magik6k]

Related Issues

Proposed Changes

This work extracts curio sources to https://github.com/filecoin-project/curio. The last few commits remove the code from the lotus repo.

Additional Info

I do highly recommend merging this with a rebase, not a squash so that the initial refactor moves remain visible here (there are also matching commits in the curio repo, but imo much better to have that history recorded in lotus as well)

Checklist

Before you mark the PR ready for review, please make sure that:

• Commits have a clear commit message.
• PR title is in the form of of <PR type>: <area>: <change being made>
  • example: fix: mempool: Introduce a cache for valid signatures
  • PR type: fix, feat, build, chore, ci, docs, perf, refactor, revert, style, test
  • area, e.g. api, chain, state, market, mempool, multisig, networking, paych, proving, sealing, wallet, deps
• If the PR affects users (e.g., new feature, bug fix, system requirements change), update the CHANGELOG.md and add details to the UNRELEASED section.
• New features have usage guidelines and / or documentation updates in
  • Lotus Documentation
  • Discussion Tutorials
• Tests exist for new functionality or change in behavior
• CI is green

[github-actions]

All checks have completed

❌ Failed Check / Check (lint-all) (pull_request)

[magik6k]

(Lint errors are from master)

[LexLuthr]

@magik6k Can you please also remove #12051?

[magik6k]

The only remaining reference to curio is now the schema name in harmonydb (which has to be kept in this repo for compatible DBIndex)

lotus$ ag curio
lib/harmony/harmonydb/harmonydb.go
87:     schema := "curio"