Add ESLint rule ensuring peerDependencies are also declared in devDependencies

[yceffort-naver]

Description

this resolves #82

This pull request adds a new ESLint rule that validates the project's package.json to ensure that all dependencies under "peerDependencies" are also declared in "devDependencies". This is important for local development because peer dependencies often need to be present in the developer's environment for builds, tests, and other tooling to work properly.

Implementation Details

• The rule targets files named package.json.
• It parses package.json as JSON and compares the keys in peerDependencies against those in devDependencies.
• If any package is missing from devDependencies, an ESLint error is reported for each missing package.

[npayfebot]

✅ Changeset detected

Latest commit: 5ba84c5

@naverpay/eslint-plugin package have detected changes.

If no version change is needed, please add skip-detect-change to the label.

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

_{powered by: naverpay changeset detect-add actions}

[byhhh2]

LGTM~~ 감사합니다 👍

[yujeong-jeon]

감사합니다~! 현재 변경이 #82 (comment) 에서 말씀드린 바대로 에러만 Report하는 형태일것 같습니다

[yceffort-naver]

@yujeong-jeon 이게 버전 까지 지정해줘야 되서 fixable 로 해야할지 고민이 좀 되더라구요. 지금 그대로는 어떠세요?

[yujeong-jeon]

@yujeong-jeon 이게 버전 까지 지정해줘야 되서 fixable 로 해야할지 고민이 좀 되더라구요. 지금 그대로는 어떠세요?

아 네네 저도 auto-fix는 미지원해도 될거 같았습니다 :) 린트 검사만 터지는게 나을것 같습니다

[yceffort-naver]

꼬꼬 감사합니다!