Error in production but not caught by linter via pnpm build

Start with src/components/ComponentWithImportedZod.tsx in the linked reproduction repository, then run pnpm build and compare its result with the deployed Vercel response. Trace why exporting a const from a route into an external component produces a deployed 500 error; done means the reproduction no longer deploys into that failure or the problem is reported during build.

Which project does this relate to?

Create Tanstack App

Describe the bug

I discovered a bug because I was trying to figure out why my code was building and deplying without errors then upon visiting the deployed website getting the response back from the url in return.

{
  "error": true,
  "url": "https://tanstack-start-deployment-bug.vercel.app/",
  "statusCode": 500,
  "statusMessage": "Server Error",
  "message": "Server Error"
}

I made a repo to demonstrate the issue

https://github.com/remusris/tanstack-start-deployment-bug

below is the deployment url

https://tanstack-start-deployment-bug.vercel.app/

Basically if you export a const from the a route into some component this will trigger the error in deployment.

If you look at the ComponentWithImportedZod.tsx file that is culprit of the issue

https://github.com/remusris/tanstack-start-deployment-bug/blob/master/src/components/ComponentWithImportedZod.tsx

If this is non an error please let me know what I'm doing wrong.

Your Example Website or App

https://tanstack-start-deployment-bug.vercel.app/

Steps to Reproduce the Bug or Issue

Export a const from a file inside of routes into a component outside of routes. In this case it was a zod schema for validating searchParams

Expected behavior

The user does not get any build errors or deployment errors but once the URL is live all you get in response is

{
  "error": true,
  "url": "https://tanstack-start-deployment-bug.vercel.app/",
  "statusCode": 500,
  "statusMessage": "Server Error",
  "message": "Server Error"
}

https://tanstack-start-deployment-bug.vercel.app/

Screenshots or Videos

Check out the url below

https://tanstack-start-deployment-bug.vercel.app/

Platform

Google Chrome | 140.0.7339.128 (Official Build) (64-bit) (cohort: Stable)
Revision | 36aa3351631d175ee5346a1aaf74ef5d49abe308-refs/branch-heads/7339@{#1850}
OS | Windows 11 Version 24H2 (Build 26100.6584)

Additional context

No response