Upgrade Next.js from 14 to 15

[devin-ai-integration]

Upgrade Next.js from 14 to 15

This PR upgrades Next.js from version 14 to version 15 in the codemod repository.

Changes

• Updated Next.js version in pnpm-workspace.yaml from ^14.2.3 to ^15.1.6
• Updated eslint-config-next version from 14.1.0 to 15.1.6
• Removed experimental.taint from next.config.mjs as it's now stable in Next.js 15
• Updated synchronous API calls to use the new asynchronous pattern:
  • headers() in API routes
  • draftMode() in page components
  • searchParams usage in client components

Notes

There are some module resolution errors during build that need to be addressed:

• Module not found: Can't resolve '@codemod.com/codemod-utils'
• Module not found: Can't resolve '@codemod-com/utilities'

These errors are likely related to changes in Next.js 15's module resolution system or workspace package references.

Link to Devin run

https://app.devin.ai/sessions/85b69566461b4790a7841d1c92b662ba

Requested by: Alex Bit ([email protected])

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1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
codemod	⬜️ Ignored (Inspect)			May 18, 2025 6:15am

[pkg-pr-new]

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npm i https://pkg.pr.new/codemod@1531

commit: 4fd953b