CSF: Add base factories

[kasperpeulen]

Closes #

What I did

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	77.9 MB	77.9 MB	6.06 kB	2.06	0%
initSize	132 MB	132 MB	79.8 kB	-0.44	0.1%
diffSize	53.8 MB	53.9 MB	73.8 kB	-0.5	0.1%
buildSize	7.19 MB	7.22 MB	27.8 kB	28.57	0.4%
buildSbAddonsSize	1.85 MB	1.85 MB	-422 B	-3.47	0%
buildSbCommonSize	195 kB	195 kB	0 B	-	0%
buildSbManagerSize	1.87 MB	1.87 MB	0 B	1.11	0%
buildSbPreviewSize	0 B	0 B	0 B	-	-
buildStaticSize	0 B	0 B	0 B	-	-
buildPrebuildSize	3.91 MB	3.91 MB	-422 B	0.7	0%
buildPreviewSize	3.28 MB	3.31 MB	28.2 kB	100.57	0.9%
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	18.1s	7.9s	-10s -168ms	-1.28	🔰-127.4%
generateTime	26s	20.2s	-5s -813ms	-0.42	-28.7%
initTime	14.3s	13.7s	-555ms	-0.27	-4%
buildTime	9.8s	10.6s	832ms	0.93	7.8%
testBuildTime	0ms	0ms	0ms	-	-
devPreviewResponsive	4.8s	4.8s	8ms	-0.49	0.2%
devManagerResponsive	3.5s	3.5s	89ms	-0.25	2.5%
devManagerHeaderVisible	568ms	578ms	10ms	-0.81	1.7%
devManagerIndexVisible	605ms	589ms	-16ms	-1.02	-2.7%
devStoryVisibleUncached	1.9s	2s	55ms	0.39	2.7%
devStoryVisible	606ms	609ms	3ms	-0.82	0.5%
devAutodocsVisible	514ms	474ms	-40ms	-0.93	-8.4%
devMDXVisible	533ms	471ms	-62ms	-1.01	-13.2%
buildManagerHeaderVisible	536ms	525ms	-11ms	-0.73	-2.1%
buildManagerIndexVisible	542ms	529ms	-13ms	-0.72	-2.5%
buildStoryVisible	528ms	513ms	-15ms	-0.78	-2.9%
buildAutodocsVisible	433ms	433ms	0ms	-0.67	0%
buildMDXVisible	397ms	401ms	4ms	-1.24	1%

[github-actions]

	Fails
🚫	PR is not labeled with one of: ["cleanup","BREAKING CHANGE","feature request","bug","documentation","maintenance","build","dependencies"]
🚫	PR is not labeled with one of: ["ci:normal","ci:merged","ci:daily","ci:docs"]
🚫	PR title must be in the format of "Area: Summary", With both Area and Summary starting with a capital letter Good examples: - "Docs: Describe Canvas Doc Block" - "Svelte: Support Svelte v4" Bad examples: - "add new api docs" - "fix: Svelte 4 support" - "Vue: improve docs"

Generated by 🚫 dangerJS against 8ceedc1

[nx-cloud]

View your CI Pipeline Execution ↗ for commit 1d637ec.

Command	Status	Duration	Result
nx run-many -t build --parallel=3	✅ Succeeded	1m 49s	View ↗

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☁️ Nx Cloud last updated this comment at 2025-01-31 16:26:52 UTC

[storybook-pr-benchmarking]

Package Benchmarks

^{Commit: 1d637ec, ran on 31 January 2025 at 16:35:59 UTC}

No significant changes detected, all good. 👏