fix: bug fixes to better auth ,cli and prisma generated

[HimanshuKumarDutt094]

Closes #2157 #2163 #1903

✅ 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

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Changelog

• add generated folder to base template gitignore (closes bug: /generated being pushed #2163)
• add [alias] to import-alias option (closes: bug: Setting import-alias via the command line fails. #1903)
• added nextCookies plugin following better auth new docs (closes bug: Error Code: state_mismatch when signing in with GitHub on fresh T3 App #2157 )

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💯

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🦋 Changeset detected

Latest commit: 809b7a9

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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Project	Deployment	Preview	Comments	Updated (UTC)
create-t3-app	Ready	Preview	Comment	Nov 28, 2025 2:04am

[xzakharov]

I'd add a comment that nextCookies must be the last plugin for those who don't know this. Something like

// Make sure nextCookies() is the last plugin in the array
  plugins: [nextCookies()],

[juliusmarminge]

I'd add a comment that nextCookies must be the last plugin for those who don't know this. Something like

// Make sure nextCookies() is the last plugin in the array

  plugins: [nextCookies()],

Valid

[HimanshuKumarDutt094]

I'd add a comment that nextCookies must be the last plugin for those who don't know this. Something like

// Make sure nextCookies() is the last plugin in the array

  plugins: [nextCookies()],

Valid

added them