fix: rename template/extras/pnpm/.npmrc to _npmrc (remove "." prefix) to fix eslint installation error

[mmstroik]

✅ Checklist

• I have followed every step in the contributing guide (updated 2022-10-06).
• The PR title follows the convention we established conventional-commit
• I performed a functional test on my final commit

---

Changelog

After the PR #2090 was merged to fix a VSCode ESLint Plugin issue with pnpm@10, the pnpm/.npmrc file that it PR added (which it references in cli/src/installers/eslint.ts) isn't getting included in the package, likely because npm packaging typically doesn't include dotfiles unless explicitly specified in the package.json "files" array.

This is causing the pnpn create t3-app@latest installation to abort during the eslint boilerplating because that .npmrc file can't be found:

...
✔ Successfully setup boilerplate for envVariables
⠋ Boilerplating eslint...Aborting installation...
Boilerplating eslint...Aborting installation...
Error: ENOENT: no such file or directory, lstat '.../node_modules/create-t3-app/template/extras/pnpm/.npmrc'

This can be confirmed by the following command:

$ npm view create-t3-app dist.tarball | xargs curl -s -o package.tgz && tar -xzf package.tgz && ls -la package/template/extras/pnpm/ 2>/dev/null || echo "File not found in published package"
File not found in published package

Fix: explicitly add the template/extras/pnpm/.npmrc file to the cli/package.json "files" array to ensure it gets included in the package

💯

[changeset-bot]

🦋 Changeset detected

Latest commit: 0c2940d

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

This PR includes changesets to release 1 package

Name	Type
create-t3-app	Patch

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Name	Status	Preview	Comments	Updated (UTC)
create-t3-app	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 31, 2025 3:09pm

[DanTiw]

Can confrim I am facing the same issue while using pnpm

[hengrv]

Pulled this and looks good to me - can confirm changes work correctly ❤️ fixes #2093

[MaKTaiL]

I was responsible for PR #2090. Locally it was working fine and I had no idea why the published version was having this problem. Thanks for figuring out the issue! ❤️

I would personally rename the .npmrc file in extras folder to npmrc or _npmrc and make the necesssary changes in the eslint.ts file instead of explicitly specifying it in the package.json.

[JagTheFriend]

When will this be merged?, currently facing the same issue!

[mmstroik]

I would personally rename the .npmrc file in extras folder to npmrc or _npmrc and make the necesssary changes in the eslint.ts file instead of explicitly specifying it in the package.json.

ya good call -- just made that change to the PR

[mmstroik]

K lol actually just noticed that other templated files like gitignore use underscore prefixes so changed it to that to follow convention