chore: Update cva to 1.0-beta

[sebald]

Description

Migrate from class-variance-authority to cva (v1 beta) and simplify extendTheme via function composition.

Key changes:

• Replace class-variance-authority dependency with cva v1 beta, which has built-in Tailwind merge support via
  defineConfig
• Refactor the custom cva wrapper in className.utils.ts to use cva's defineConfig with a twMerge hook,
  removing ~40 lines of manual type definitions and wrapper code
• Simplify extendTheme to compose style functions directly (cn(existingFn(props), newFn(props))) instead of
  extracting and merging variant configs — this fixes a bug where defaultVariants and compoundVariants were lost
  during merging
• Update all theme style files in theme-docs and theme-rui to the new cva API (object config with
  base/variants/compoundVariants keys)
• Remove exported internal types (ConfigSchema, ConfigVariants, ConfigVariantsMulti, Config, Props) that are
  no longer needed — only ClassValue and VariantProps remain
• Update docs and fumadocs build scripts and demos to align with the new API

Test Instructions:

1. Run pnpm build to verify all packages build successfully
2. Run pnpm test:unit to verify unit tests pass
3. Run pnpm sb and verify components render correctly with their variants in Storybook
4. Verify extendTheme works correctly — defaultVariants and compoundVariants should now be preserved when
   extending a theme

Reviewers:

@marigold-ui/developer

Pull Request Checklist:

• Marigold docs and Storybook Preview is available
• Added/updated unit tests and storybook for this change (for new code or code which already has tests).
• Added/Updated documentation (if it already exists for this component).
• Updated visual regression tests (only necessary when ui changes in the PR)

[changeset-bot]

🦋 Changeset detected

Latest commit: 42036da

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 7 packages

Name	Type
@marigold/system	Minor
@marigold/theme-docs	Minor
@marigold/theme-rui	Minor
@marigold/docs	Minor
fumadocs	Patch
@marigold/components	Minor
@marigold/icons	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
marigold-docs	Ready	Preview, Comment	Feb 13, 2026 8:29am
marigold-fumadocs	Ready	Preview, Comment	Feb 13, 2026 8:29am
marigold-storybook	Ready	Preview, Comment	Feb 13, 2026 8:29am

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
marigold-production	Ignored		Feb 13, 2026 8:29am

[github-actions]

Coverage Report for Marigold Code Coverage

Status	Category	Percentage	Covered / Total
🔵	Lines	96.78%	1414 / 1461
🔵	Statements	96.31%	1465 / 1521
🔵	Functions	94.78%	400 / 422
🔵	Branches	89.76%	903 / 1006

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
packages/system/src/hooks/extendTheme.tsx	100%	100%	100%	100%
packages/system/src/utils/className.utils.ts	100%	100%	100%	100%

Generated in workflow #19520 for commit 42036da by the Vitest Coverage Report Action

[github-actions]

Accessibility tests executed. Download the report here.

[github-actions]

Accessibility tests executed. Download the report here.

[github-actions]

Accessibility tests executed. Download the report here.

[github-actions]

Accessibility tests executed. Download the report here.

[github-actions]

Accessibility tests executed. Download the report here.

[github-actions]

Accessibility tests executed. Download the report here.

[github-actions]

Accessibility tests executed. Download the report here.

[github-actions]

Accessibility tests executed. Download the report here.

[github-actions]

Accessibility tests executed. Download the report here.

[github-actions]

Accessibility tests executed. Download the report here.

[github-actions]

Accessibility tests executed. Download the report here.