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>

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createSize	0 B	0 B	0 B	-	-
generateSize	77.9 MB	77.9 MB	5.66 kB	2.05	0%
initSize	132 MB	132 MB	78.2 kB	-0.44	0.1%
diffSize	53.8 MB	53.9 MB	72.5 kB	-0.5	0.1%
buildSize	7.19 MB	7.22 MB	24 kB	24.86	0.3%
buildSbAddonsSize	1.85 MB	1.85 MB	-2.3 kB	-19.42	-0.1%
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	-2.3 kB	-1.83	-0.1%
buildPreviewSize	3.28 MB	3.3 MB	26.3 kB	93.9	0.8%
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	26.4s	8.3s	1.22	31.4%
generateTime	26s	20.3s	-5s -732ms	-0.38	-28.2%
initTime	14.3s	13s	-1s -310ms	-0.84	-10%
buildTime	9.8s	8.9s	-834ms	-0.83	-9.3%
testBuildTime	0ms	0ms	0ms	-	-
devPreviewResponsive	4.8s	5s	131ms	-0.18	2.6%
devManagerResponsive	3.5s	3.8s	299ms	0.42	7.9%
devManagerHeaderVisible	568ms	553ms	-15ms	-1.23	-2.7%
devManagerIndexVisible	605ms	579ms	-26ms	-1.17	-4.5%
devStoryVisibleUncached	1.9s	2s	55ms	0.39	2.7%
devStoryVisible	606ms	587ms	-19ms	-1.17	-3.2%
devAutodocsVisible	514ms	571ms	57ms	0.72	10%
devMDXVisible	533ms	603ms	70ms	1.04	11.6%
buildManagerHeaderVisible	536ms	534ms	-2ms	-0.6	-0.4%
buildManagerIndexVisible	542ms	537ms	-5ms	-0.6	-0.9%
buildStoryVisible	528ms	525ms	-3ms	-0.6	-0.6%
buildAutodocsVisible	433ms	439ms	6ms	-0.55	1.4%
buildMDXVisible	397ms	412ms	15ms	-1.07	3.6%

[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 d5b592a.

Command	Status	Duration	Result
nx run-many -t build -c production --parallel=3	❌ Failed	16s	View ↗

---

☁️ Nx Cloud last updated this comment at 2025-01-30 15:01:32 UTC

[storybook-pr-benchmarking]

Package Benchmarks

^{Commit: b93d96a, ran on 30 January 2025 at 12:05:43 UTC}

The following packages have significant changes to their size or dependencies:

@storybook/addon-storysource

	Before	After	Difference
Dependency count	7	7	0
Self size	1.89 MB	1.89 MB	0 B
Dependency size	10.73 MB	10.79 MB	🚨 +63 KB 🚨
Bundle Size Analyzer	Link	Link

@storybook/core

	Before	After	Difference
Dependency count	54	54	0
Self size	19.06 MB	19.11 MB	🚨 +48 KB 🚨
Dependency size	14.43 MB	14.43 MB	🚨 +734 B 🚨
Bundle Size Analyzer	Link	Link

storybook

	Before	After	Difference
Dependency count	55	55	0
Self size	22 KB	23 KB	🚨 +380 B 🚨
Dependency size	33.50 MB	33.54 MB	🚨 +49 KB 🚨
Bundle Size Analyzer	Link	Link

sb

	Before	After	Difference
Dependency count	56	56	0
Self size	1 KB	1 KB	0 B
Dependency size	33.52 MB	33.57 MB	🚨 +49 KB 🚨
Bundle Size Analyzer	Link	Link

@storybook/cli

	Before	After	Difference
Dependency count	390	390	0
Self size	530 KB	530 KB	0 B
Dependency size	75.30 MB	75.41 MB	🚨 +112 KB 🚨
Bundle Size Analyzer	Link	Link

@storybook/codemod

	Before	After	Difference
Dependency count	277	277	0
Self size	612 KB	612 KB	0 B
Dependency size	65.37 MB	65.48 MB	🚨 +111 KB 🚨
Bundle Size Analyzer	Link	Link

create-storybook

	Before	After	Difference
Dependency count	113	113	0
Self size	1.11 MB	1.11 MB	0 B
Dependency size	42.63 MB	42.68 MB	🚨 +49 KB 🚨
Bundle Size Analyzer	Link	Link

@storybook/source-loader

	Before	After	Difference
Dependency count	5	5	0
Self size	41 KB	41 KB	0 B
Dependency size	10.67 MB	10.73 MB	🚨 +63 KB 🚨
Bundle Size Analyzer	Link	Link