feat: Object.assign detection to mutation rules

[waynzh]

resolve #2823

[changeset-bot]

🦋 Changeset detected

Latest commit: c943abf

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
eslint-plugin-vue	Minor

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[FloEdelmann]

Very nice, thanks!

[Copilot]

Pull Request Overview

This PR enhances the vue/no-mutating-props and vue/no-side-effects-in-computed-properties rules to detect mutations caused by Object.assign() when the target object (first argument) is a prop or reactive data.

Key changes:

• Added utility function to detect Object.assign calls with specific target nodes
• Enhanced mutation detection logic to identify Object.assign as a mutation operation
• Added comprehensive test coverage for both valid and invalid Object.assign usage patterns

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
lib/utils/index.js	Added isObjectAssignCall utility function and integrated Object.assign detection into mutation analysis
tests/lib/rules/no-mutating-props.js	Added test cases for Object.assign prop mutation detection
tests/lib/rules/no-side-effects-in-computed-properties.js	Added test cases for Object.assign side effect detection in computed properties
.changeset/hot-beers-help.md	Added changelog entry documenting the enhancement

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