refactor(link): collapse variants into a single underlined style

[FBalint]

Link: drop the blue variants, keep the underlined one

Link used to ship three variants (inline, current, plain). WCAG requires an underline, we cannot depend on color. Underline only complies. Consolidating on a single underlined style that inherits color from the surrounding text kills the "which variant do I use" question and removes a text-kumo-link foot-gun for consumers with clashing app themes.

What changed

• Link now has a single default variant: text-current + underline, inheriting color from its parent
• KUMO_LINK_VARIANTS / KUMO_LINK_DEFAULT_VARIANTS retained (variant-standard lint rule); default is the only entry
• Docs, demos, HomeGrid, and the Figma generator updated to match
• Figma generator now no-ops combineAsVariants when a single variant exists (API requires 2+)
• Changeset: major — this removes public variant names

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• Reviews
  • bonk has reviewed the change
  • automated review not possible because: visual changes
• Tests
  • Tests included/updated
  • Automated tests not possible - manual testing has been completed as follows:
  • Additional testing not necessary because:

[pkg-pr-new]

npm i https://pkg.pr.new/@cloudflare/kumo@702

commit: 8495cc7

[github-actions]

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Commit: 8495cc7

[github-actions]

Visual Regression Report — 30 changed, 13 unchanged

30 screenshot(s) with visual changes:

Button / Variant: Ghost

194 px (0.22%) changed

Before	After	Diff

Button / Variant: Secondary Destructive

490 px (0.55%) changed

Before	After	Diff

Button / Sizes

1,335 px (1.51%) changed

Before	After	Diff

Button / With Icon

819 px (0.92%) changed

Before	After	Diff

Button / Loading State

27 px (0.03%) changed

Before	After	Diff

Button / Disabled State

117 px (0.13%) changed

Before	After	Diff

Button / Link with Tooltip

887 px (1%) changed

Before	After	Diff

Dialog / Dialog With Actions

160 px (0.18%) changed

Before	After	Diff

Dialog / Dialog Basic

316 px (0.36%) changed

Before	After	Diff

Dialog / Dialog Sizes

2,298 px (2.59%) changed

Before	After	Diff

Dialog / Dialog Alert

1,625 px (1.83%) changed

Before	After	Diff

Dialog / Dialog Confirmation

415 px (0.47%) changed

Before	After	Diff

Dialog / Custom Max Width

742 px (0.84%) changed

Before	After	Diff

Dialog / Dialog With Select

500 px (0.56%) changed

Before	After	Diff

Dialog / Dialog With Dropdown

480 px (0.54%) changed

Before	After	Diff

Dialog (Open)

0 px (0%) changed

Before	After	Diff

Select / Select Basic

1,291 px (1.46%) changed

Before	After	Diff

Select / Select Sizes

3,216 px (1.98%) changed

Before	After	Diff

Select / Select Without Label

664 px (0.75%) changed

Before	After	Diff

Select / Select With Error

1,730 px (1.66%) changed

Before	After	Diff

Select / Select With Tooltip

1,031 px (1.16%) changed

Before	After	Diff

Select / Select Custom Rendering

1,076 px (1.21%) changed

Before	After	Diff

Select / Select Loading

3,209 px (1.82%) changed

Before	After	Diff

Select / Select Multiple

1,265 px (1.43%) changed

Before	After	Diff

Select / Select Disabled Options

1,700 px (1.92%) changed

Before	After	Diff

Select / Select Disabled Items

732 px (0.83%) changed

Before	After	Diff

Select / Select Grouped

813 px (0.92%) changed

Before	After	Diff

Select / Select Grouped With Disabled

1,313 px (1.48%) changed

Before	After	Diff

Select / Select Long List

1,918 px (1.84%) changed

Before	After	Diff

Select (Open)

0 px (0%) changed

Before	After	Diff

13 screenshot(s) unchanged

• Button / Basic
• Button / Variant: Primary
• Button / Variant: Secondary
• Button / Variant: Destructive
• Button / Variant: Outline
• Button / Icon Only
• Button / Title
• Button / Link as Button
• Button / Disabled Link
• Dialog / Dialog With Combobox
• Select / Select With Description
• Select / Select Placeholder
• Select / Select Complex

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Generated by Kumo Visual Regression