feat(http): Added http healthcheck endpoint

[gurinderu]

Description

Added health check HTTP endpoint

Motivation

For now it is not possible to understand the status of node, it can be fully or partially broken. Health check allows to define critical checks to determine a system status.

Proposed Changes

• Added a health check registry with stores all checkers.
• The HTTP status based on the consul docs.

Screenshots (if applicable)

Additional Notes

Also was fixed metric for bootstrap disconnected. it was applied for all disconnected events, not only bootstrap addresses.

Checklist

• The code follows the project's coding conventions and style guidelines.
• All tests related to the changes have passed successfully.
• Documentation has been updated to reflect the changes (if applicable).
• All new and existing unit tests have passed.
• I have self-reviewed my code and ensured its quality.
• I have added/updated necessary comments to aid understanding.

Reviewer Checklist

• Code has been reviewed for quality and adherence to guidelines.
• Tests have been reviewed and are sufficient to validate the changes.
• Documentation has been reviewed and is up to date.
• Any questions or concerns have been addressed.

[linear]

NET-421 Add /health HTTP endpoint to rust-peer

I really-really need this to be able to have control over automated deployments.

Update one rust-peer at a time, notify on failure, roll-back etc.

It could return 200 code if rust-peer joined kademlia and all builtin services are started with some additional information in plain text like aquavm version, rust-peer version etc

[kmd-fl]

Also, I don't quite get why we do healthcheck HTTP API and not use Prometheus