Fix build errors

[devin-ai-integration]

Fix Build Errors

Description

This PR addresses several build errors in the repository:

1. Added a test script to the root package.json to fix the Test job failure in CI
2. Modified mdxe.js to properly detect and create app or pages directories in the user's project, which fixes the Vercel deployment failure for the minimal example
3. Updated tsconfig.json to include the minimal example's .next directory
4. Attempted to fix the date-fns 'transpose' import error in mdxdb package by updating to version 4.1.0 (issue still persists and needs further investigation)

Remaining Issues

The build for the mdxdb package still fails with the following error:

Attempted import error: 'transpose' is not exported from 'date-fns' (imported as 'ce').

This issue appears to be in the @payloadcms/ui package, which is trying to import a function that doesn't exist in date-fns. Further investigation is needed to resolve this issue.

Requested by

Nathan Clevenger ([email protected])

Link to Devin run

https://app.devin.ai/sessions/a0eba45bad9545f390932fc59d6c38e6

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
mdx.org.ai	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 16, 2025 6:33pm
minimal	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 16, 2025 6:33pm

[devin-ai-integration]

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