feat: added PostCSS plugin #19

	name: Performance

	on:
	push:
	branches: [main]
	paths: ["src/**"]
	pull_request:
	branches: [main]
	paths: ["src/**"]
	workflow_dispatch:

	jobs:
	performance:
	name: Performance Benchmarks
	runs-on: ubuntu-24.04
	timeout-minutes: 15

	permissions:
	contents: read
	pull-requests: write

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Setup Node.js
	uses: actions/setup-node@v4
	with:
	node-version-file: ".nvmrc"
	cache: "npm"

	- name: Install dependencies
	run: npm ci

	- name: Run performance benchmarks
	run: \|
	# Add your performance testing commands here
	# This is a placeholder - adapt to your actual performance tests
	echo "Running performance benchmarks..."
	npm run build

	# Example: measure bundle size changes
	echo "### Performance Report" >> $GITHUB_STEP_SUMMARY
	echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
	echo "Bundle sizes:" >> $GITHUB_STEP_SUMMARY
	ls -lh packages/css-if-polyfill/dist/ >> $GITHUB_STEP_SUMMARY
	echo "\`\`\`" >> $GITHUB_STEP_SUMMARY

	- name: Comment performance results
	if: github.event_name == 'pull_request'
	uses: actions/github-script@v7
	with:
	script: \|
	github.rest.issues.createComment({
	issue_number: context.issue.number,
	owner: context.repo.owner,
	repo: context.repo.repo,
	body: '🚀 Performance check completed! Check the summary for details.'
	})

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