no-unused-class-names ignores `cmkOptions.animation: false` when counting `animation-name` references

[mizdra]

Summary

The no-unused-class-names rule (both @css-modules-kit/stylelint-plugin and @css-modules-kit/eslint-plugin) always treats tokens referenced by animation-name (and the animation shorthand) as "used", regardless of the cmkOptions.animation setting.

The rest of css-modules-kit (ts-plugin, codegen) extracts animation-name references only when animation is enabled. The rule should follow the same setting.

Reproduction

// tsconfig.json
{ "cmkOptions": { "animation": false } }

/* a.module.css */
.fade { color: red; }
.button { animation-name: fade; }

// a.tsx (uses styles.button only)

Expected: .fade is reported as unused. With animation: false, animation-name is not treated as a token reference.

Actual: .fade is not reported. findUsedTokenNames in @css-modules-kit/core walks animation-name / animation declarations unconditionally, so fade is counted as used.

Only false negatives (missed reports) occur, and only for users who explicitly set animation: false (the default is true).

Notes on fixing

The linter plugins currently do not read cmkOptions at all, so the fix needs a design decision about how they receive the option:

• Accept it as a rule option (stylelint secondary options / ESLint rule options): idiomatic for linters, but duplicates the tsconfig setting
• Read tsconfig from the plugins: keeps a single source of truth, but brings config discovery and caching concerns into the plugins

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