Next.js: Support v15.1.1

[valentinpalkovic]

Closes #

What I did

Added support for the upcoming Next.js v15.1 release

Checklist for Contributors

Testing

The changes in this PR are covered in the following automated tests:

• stories
• unit tests
• integration tests
• end-to-end tests

Manual testing

This section is mandatory for all contributions. If you believe no manual test is necessary, please state so explicitly. Thanks!

Documentation

• Add or update documentation reflecting your changes
• If you are deprecating/removing a feature, make sure to update
  MIGRATION.MD

Checklist for Maintainers

• When this PR is ready for testing, make sure to add ci:normal, ci:merged or ci:daily GH label to it to run a specific set of sandboxes. The particular set of sandboxes can be found in code/lib/cli-storybook/src/sandbox-templates.ts

• Make sure this PR contains one of the labels below:

  Available labels

  • bug: Internal changes that fixes incorrect behavior.
  • maintenance: User-facing maintenance tasks.
  • dependencies: Upgrading (sometimes downgrading) dependencies.
  • build: Internal-facing build tooling & test updates. Will not show up in release changelog.
  • cleanup: Minor cleanup style change. Will not show up in release changelog.
  • documentation: Documentation only changes. Will not show up in release changelog.
  • feature request: Introducing a new feature.
  • BREAKING CHANGE: Changes that break compatibility in some way with current major version.
  • other: Changes that don't fit in the above categories.

🦋 Canary release

This PR does not have a canary release associated. You can request a canary release of this pull request by mentioning the @storybookjs/core team here.

core team members can create a canary release here or locally with gh workflow run --repo storybookjs/storybook canary-release-pr.yml --field pr=<PR_NUMBER>

name	before	after	diff	z	%
createSize	0 B	0 B	0 B	-	-
generateSize	77.7 MB	77.7 MB	0 B	1.53	0%
initSize	136 MB	136 MB	0 B	1.53	0%
diffSize	58.4 MB	58.4 MB	0 B	1.53	0%
buildSize	7.24 MB	7.24 MB	0 B	1.22	0%
buildSbAddonsSize	1.88 MB	1.88 MB	0 B	1.22	0%
buildSbCommonSize	195 kB	195 kB	0 B	-	0%
buildSbManagerSize	1.86 MB	1.86 MB	0 B	1.11	0%
buildSbPreviewSize	0 B	0 B	0 B	-	-
buildStaticSize	0 B	0 B	0 B	-	-
buildPrebuildSize	3.93 MB	3.93 MB	0 B	1.22	0%
buildPreviewSize	3.3 MB	3.3 MB	0 B	1.2	0%
testBuildSize	0 B	0 B	0 B	-	-
testBuildSbAddonsSize	0 B	0 B	0 B	-	-
testBuildSbCommonSize	0 B	0 B	0 B	-	-
testBuildSbManagerSize	0 B	0 B	0 B	-	-
testBuildSbPreviewSize	0 B	0 B	0 B	-	-
testBuildStaticSize	0 B	0 B	0 B	-	-
testBuildPrebuildSize	0 B	0 B	0 B	-	-
testBuildPreviewSize	0 B	0 B	0 B	-	-

name	before	after	diff	z	%
createTime	6.9s	7.2s	336ms	-0.85	4.6%
generateTime	21.5s	19.4s	-2s -93ms	-0.69	-10.8%
initTime	14.6s	14.5s	-147ms	0.09	-1%
buildTime	8.8s	8s	-750ms	-0.91	-9.3%
testBuildTime	0ms	0ms	0ms	-	-
devPreviewResponsive	4.2s	5.1s	891ms	0.01	17.2%
devManagerResponsive	3.3s	4s	685ms	0.32	17%
devManagerHeaderVisible	500ms	618ms	118ms	0.3	19.1%
devManagerIndexVisible	529ms	657ms	128ms	0.15	19.5%
devStoryVisibleUncached	1.7s	1.9s	259ms	0.79	13.1%
devStoryVisible	528ms	656ms	128ms	0.13	19.5%
devAutodocsVisible	497ms	578ms	81ms	0.72	14%
devMDXVisible	456ms	574ms	118ms	0.33	20.6%
buildManagerHeaderVisible	520ms	625ms	105ms	0.21	16.8%
buildManagerIndexVisible	593ms	719ms	126ms	0.16	17.5%
buildStoryVisible	468ms	585ms	117ms	0.28	20%
buildAutodocsVisible	404ms	573ms	169ms	1.17	29.5%
buildMDXVisible	391ms	509ms	118ms	0.53	23.2%

Greptile Summary

Updates the AppRouterProvider component in Next.js and experimental-nextjs-vite frameworks to support Next.js v15.2 while maintaining backward compatibility.

• Added newLazyCacheNode object for caching in both frameworks
• Added parentTree and parentCacheNode properties to LayoutRouterContext.Provider for v15.2 support
• Maintained backward compatibility with childNodes and tree properties for Next.js < v15.2
• Added TODO comments to mark code for removal when dropping support for older Next.js versions

[greptile-apps]

LGTM

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