This adds the `pnpm release` command to cut releases and generate
changelogs automatically from commit histories.
It also sets the `package.json` version to `0.1.0` as we haven't
actually put out a `1.0.0` release yet.
This commit migrates the repo to our foundry template, which ensures we
have consistent tooling across smart contract repositories that are
maintained by Vac.
This removes all hardhat related files and workflows and replaces them
with more perfomant foundry workflows.
It also sets up tests, CI and linting.
