Linter: detect unused dependencies

[bajtos]

We should have a linting step to report unused dependencies, so that we don't have to discuss this in pull requests.

See e.g. https://github.com/filecoin-station/deal-observer/pull/12/files#r1924916463 and CheckerNetwork/spark-deal-observer#12 (comment)

[bajtos]

A tool we can use: https://www.npmjs.com/package/depcheck

[sumanjeet0012]

@bajtos I want to work on this issue. Can you specify exactly on which repository you want to implement this.

[bajtos]

@bajtos I want to work on this issue. Can you specify exactly on which repository you want to implement this.

Awesome!

We will want to eventually implement this in all https://github.com/CheckerNetwork/ repositories that have a package.json file.

Let's start with https://github.com/CheckerNetwork/spark-evaluate/ so that we can align on the proposed solution (please wait for an approval from @juliangruber @pyropy @NikolasHaimerl @bajtos).

Some repositories like spark-api use npm workspaces, so there is more than one package.json file that we need to check for unused dependencies.