ci: add e18e dependency diff workflow

[serhalp]

🔗 Linked issue

N/A

🧭 Context

See https://github.com/e18e/action-dependency-diff.

📚 Description

This configures the e18e/action-dependency-diff workflow. I've tried to tune it to avoid being noisy, but we may have to iterate a bit on it once merged.

Note that the action doesn't have sophisticated monorepo handling, so it won't report the base app + cli + docs separately, since they share a lockfile.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
npmx.dev	Building	Preview, Comment	Apr 10, 2026 11:15am

2 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
docs.npmx.dev	Ignored	Preview	Apr 10, 2026 11:15am
npmx-lunaria	Ignored		Apr 10, 2026 11:15am

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

📢 Thoughts on this report? Let us know!

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: eedfe119-535b-4f41-9197-8eb31d6feda2

📥 Commits

Reviewing files that changed from the base of the PR and between 57687cc and cb41e32.

📒 Files selected for processing (1)

• .github/workflows/dependency-diff.yml

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📝 Walkthrough

Walkthrough

A new GitHub Actions workflow file has been added to automate dependency difference checks on pull requests. The workflow triggers on pull requests targeting the main or release branches when changes affect dependency-related files including package.json, pnpm-lock.yaml, pnpm-workspace.yaml, and workspace package files. The workflow uses concurrency controls to limit simultaneous runs and maintains minimal repository permissions. It executes a single job that checks out the repository with full history and runs the dependency-diff action with specific thresholds for duplicates, dependencies, and file size.

Suggested reviewers

• 43081j
• ghostdevv

🚥 Pre-merge checks | ✅ 1

✅ Passed checks (1 passed)

Check name	Status	Explanation
Description check	✅ Passed	The pull request description directly addresses the changeset, explaining the purpose of adding the e18e/action-dependency-diff workflow configuration and its tuning considerations.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch serhalp/add-dependency-diff-workflow

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