feat(stylelint-config): introduce stylelint config

[dangreen]

No description provided.

[Copilot]

Pull Request Overview

This PR introduces a new Stylelint configuration package with multiple subconfigs for common, SCSS, strict, and logical rules, along with matchers and concentric CSS ordering.

• Added a strict subconfig enforcing stricter naming and declaration rules.
• Added an SCSS-specific config with custom syntax and overrides based on common rules.
• Defined regex matchers and the concentric-css property ordering; updated package exports, metadata, and documentation.

Reviewed Changes

Copilot reviewed 14 out of 15 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
packages/stylelint-config/src/subconfigs/strict.js	New strict rules and custom matchers
packages/stylelint-config/src/subconfigs/scss.js	SCSS-specific config with syntax and rule overrides
packages/stylelint-config/src/subconfigs/matchers.js	Regex matchers for naming conventions
packages/stylelint-config/src/subconfigs/common.js	Core shared config, plugins, and property ordering
packages/stylelint-config/src/subconfigs/logical.js	Logical CSS properties plugin config
packages/stylelint-config/src/subconfigs/concentric-css.js	Concentric CSS property-order groups
packages/stylelint-config/src/*.js	Entry-point exports for each subconfig
packages/stylelint-config/package.json	Package metadata, dependencies, and publish settings
packages/stylelint-config/eslint.config.js	ESLint overrides for the config package
packages/stylelint-config/README.md	Documentation and usage examples
package.json (root)	Updated clear script to match new package layout

Files not reviewed (1)

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Comments suppressed due to low confidence (1)

packages/stylelint-config/src/subconfigs/matchers.js:1

• Consider adding unit tests for these regex matchers to ensure they correctly accept and reject expected naming patterns, improving confidence when upgrading or refactoring.

/**

[Copilot]

The regex is provided as a string literal. You should use a RegExp literal (without quotes), e.g. [/color([^A-Z]|$)/], so the rule correctly interprets it as a regex.

Suggested change

	['font-family', '/color([^A-Z]|$)/'],
	['font-family', /color([^A-Z]|$)/],