chore: refactor tokenSets constants

[mimarz]

Waiting for #4763 to have tests for this refactor.

This is a small refactor to reduce duplicate constants, faster execution and cleaner separation of concern.

This was originally done in #4639, but since we putting that on hold I have extracted those improvements into here.

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Latest commit: db97bea

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Preview deployments for this pull request:

storybook - 27. Apr 2026 - 09:17

[Copilot]

Pull request overview

Refactors token creation/formatting to centralize token set “dimensions” (color schemes + size modes) and reduce duplicated constants across CLI token generation flows.

Changes:

• Introduces tokenSetDimensions and threads it through $themes / $metadata generators and call sites.
• Adds colorNamesByCategory() helper and updates generators to consume precomputed color-name arrays.
• Splits token file generation into createSystemTokenFiles() (system files) + tokenSetsToFiles() (per token set) and updates CLI/script usage.

Reviewed changes

Copilot reviewed 9 out of 10 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
packages/cli/src/tokens/utils.ts	Adds colorNamesByCategory() helper for deriving color name lists.
packages/cli/src/tokens/types.ts	Adds ColorNamesByCategory + TokenSetDimensions types.
packages/cli/src/tokens/format.ts	Uses tokenSetDimensions and derived color-name lists when generating $themes.
packages/cli/src/tokens/create/generators/$themes.ts	Updates $themes generation API to take token dimensions + color-name arrays.
packages/cli/src/tokens/create/generators/$metadata.ts	Updates $metadata generation API similarly and adds doc comment.
packages/cli/src/tokens/create/files.ts	Splits system token files from token set files and returns file lists.
packages/cli/src/tokens/create.ts	Centralizes color schemes/size modes into tokenSetDimensions.
packages/cli/src/scripts/update-preview-tokens.ts	Aligns preview token generation with new $themes API.
packages/cli/bin/designsystemet.ts	Updates CLI create command to use new file generation functions and shared dimensions.
.changeset/warm-streets-clap.md	Adds a new changeset file (currently empty content).

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[oddvernes]

LGTM!