fix: try to resolve server entry also from server/index

[lazerg]

🔗 Linked issue

Resolves #4455

❓ Type of change

• 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

server.ts in the project root is auto-detected as the server entry, and #4313 extended that to a server dir, but server/index.ts still isn't picked up. This adds index to the resolved suffixes so the folder form (server/index.ts) is detected the same way.

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.
• I have updated the tests accordingly.

[vercel]

@lazerg is attempting to deploy a commit to the Nitro Team on Vercel.

A member of the Team first needs to authorize it.

[coderabbitai]

📝 Walkthrough

Walkthrough

Server entry auto-detection now considers both server.ts and server/index.ts. New unit tests create temporary projects and verify that configuration loading detects each entry path.

Changes

Server entry detection

Layer / File(s)	Summary
Expand server entry resolution src/config/resolvers/paths.ts	Server entry resolution considers empty and /index suffixes for ./server.
Test server entry detection test/unit/server-entry.test.ts	Temporary-project tests verify detection of root server.ts and nested server/index.ts entries, with cleanup after each test.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• nitrojs/nitro#4313: Updates the same server entry auto-detection path resolution logic.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	The code and tests implement #4455 by resolving server/index.ts as an auto-detected server entry.
Out of Scope Changes check	✅ Passed	The changes stay focused on server entry resolution and the corresponding unit test.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Title check	✅ Passed	The title follows conventional commits with a clear fix: prefix and accurately describes the server entry resolution change.
Description check	✅ Passed	The description is directly related to the change and explains the new server/index.ts detection plus test updates.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@test/unit/server-entry.test.ts`:
- Line 3: Update the path assertions in the server entry tests to normalize the
resolved handler path before comparison, using the existing pathe utilities or
an equivalent separator-independent matcher. Apply this to the assertions around
both the referenced import and the additional lines 43–49, while preserving the
expected path values.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: a68822b1-4281-4e99-99a5-a5e5b8bd52d5

📥 Commits

Reviewing files that changed from the base of the PR and between 77b77ff and 0b4383a.

📒 Files selected for processing (2)

• src/config/resolvers/paths.ts
• test/unit/server-entry.test.ts