Support css, scss, and less

[ony3000]

No description provided.

[Copilot]

Pull request overview

Adds first-class support for formatting CSS-family syntaxes through this merge plugin by wiring Prettier’s PostCSS-based parsers and introducing snapshot coverage for css/scss/less scenarios.

Changes:

• Add css, scss, and less parser support in the plugin by delegating to prettier/plugins/postcss.
• Add Vitest snapshot tests (and snapshots) for css/scss/less across zero/single/multiple plugin scenarios.
• Bump prettier-plugin-brace-style to 0.10.0 (package.json + lockfile), and extend the global supported parser-name union.

Reviewed changes

Copilot reviewed 20 out of 22 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/parsers.ts	Imports PostCSS parsers and registers css/scss/less with transformParser.
global.d.ts	Adds css/scss/less to SupportedParserNames.
tests/css/*.test.ts	Adds snapshot-based tests for CSS parser behavior with 0/1/2 plugins.
tests/css/__snapshots__/*	New snapshots for the CSS tests.
tests/scss/*.test.ts	Adds snapshot-based tests for SCSS parser behavior with 0/1/2 plugins.
tests/scss/__snapshots__/*	New snapshots for the SCSS tests.
tests/less/*.test.ts	Adds snapshot-based tests for LESS parser behavior with 0/1/2 plugins.
tests/less/__snapshots__/*	New snapshots for the LESS tests.
package.json	Updates prettier-plugin-brace-style devDependency to 0.10.0.
pnpm-lock.yaml	Lockfile updates reflecting the brace-style bump.

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

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