fix: reduce timeout to 25 seconds

[styfle]

• Related to Forever loading on some versions of create-typescript-app #1067

We give the npm package 25 seconds and that leaves 5 seconds to cleanup when we fail for a total of 30 seconds.

[vercel]

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Name	Status	Preview	Updated (UTC)
packagephobia	✅ Ready (Inspect)	Visit Preview	Mar 19, 2025 0:30am

[Copilot]

Pull Request Overview

This PR reduces the npm install timeout from 2 minutes to 25 seconds and updates the related functions to support aborting the process.

• Introduces an AbortController in calculatePackageSize within npm-stats.ts.
• Updates the npmInstall function signature in npm-wrapper.ts to accept an AbortSignal.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/util/backend/npm-stats.ts	Uses AbortController to abort npm install and cleans up after the timeout.
src/util/backend/npm-wrapper.ts	Modifies npmInstall to accept a new AbortSignal parameter for cancellation.

Comments suppressed due to low confidence (2)

src/util/backend/npm-stats.ts:36

• Consider wrapping the subsequent cleanup call (execFileAsync) in a try-catch block to properly handle any errors that might occur during the abort process.

console.error(`Aborting npm install and deleting ${tmpPackage}`);

src/util/backend/npm-wrapper.ts:9

• Ensure that all invocations of npmInstall are updated to pass an AbortSignal to prevent runtime errors when the new parameter is required.

export async function npmInstall(