feat(enforce-exhaustive-useUnit-destructuring): add new rule for destructured units

[Olovyannikov]

Problem: implicit subscriptions when forgot remove unused subscriptions inside react components
e.g.:

const { setValue } = useUnit({ 
  value: $store, // not used, but create unnecessary re-render
  setValue: event 
})

Why is this important?

Implicit subscriptions can lead to:

• Performance issues: unnecessary re-renders when unused stores update
• Hard-to-debug behavior: component re-renders for unclear reasons
• Memory leaks: subscriptions that are never cleaned up properly

Rule Details

This rule enforces that:

• All properties passed in an object to useUnit must be destructured to prevent implicit subscriptions;
• All elements passed in an array to useUnit must be destructured to prevent implicit subscriptions also.

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[kireevmp]

@Olovyannikov Thanks for taking the time to submit this! The rule logic seems to be solid 👍

There are a couple of good opportunities to improve this though – I'd appreciate it if you can take a look at my comments

[kireevmp]

@Olovyannikov Thank you for committing your time to polish this PR! I think these are just final cosmetic touches on code location and consistency. Once fixed I believe we'll be in good shape to merge.

[kireevmp]

@Olovyannikov Thank you! I think I just need a changeset from you via pnpm changeset (changelog purposes, looking at a minor here). Once added this is good to merge 🚀

[kireevmp]

@Olovyannikov Thanks for seeing this through! I'll be taking a look at #176 as well in the next couple of days to wrap up this rule duo – we're currently aiming to release both in v0.19.