zksync-era

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⚠️ To be superseded by a different approach.

What ❔

Adds the ability to implement a custom setup hook with access to context able to retrieve resources and spawn tasks early.

Why ❔

Often there may be some code that we want to run before we actually launch the node. As a simple case, check if the genesis batch info is present in the DB. It would be nice to do it:

• From within the framework to avoid responsibility split.
• With access to the service lifecycle (e.g. if we're performing some long operation, we would want to first spawn the healthcheck server).

Checklist

• [ ] PR title corresponds to the body of PR (we generate changelog entries from PRs).
• [ ] Tests for the changes have been added / updated.
• [ ] Documentation comments have been added / updated.
• [ ] Code has been formatted via zk fmt and zk lint.
• [ ] Spellcheck has been run via zk spellcheck.
• [ ] Linkcheck has been run via zk linkcheck.