add seo #1

	name: CI

	# Trigger workflow on pull requests to main branch
	on:
	pull_request:
	branches:
	- main

	# Set permissions for CI and PR comments
	permissions:
	contents: read
	pull-requests: write

	jobs:
	# CI job to verify build and run tests
	ci:
	name: Build and Test
	runs-on: ubuntu-latest

	steps:
	# Step 1: Checkout repository code
	- name: Checkout
	uses: actions/checkout@v4

	# Step 2: Setup Node.js 20 with npm caching
	- name: Setup Node.js
	uses: actions/setup-node@v4
	with:
	node-version: "20"
	cache: "npm"

	# Step 3: Install dependencies using npm ci for clean, reproducible installs
	- name: Install dependencies
	run: npm ci

	# Step 4: Build project and verify TypeScript compilation
	- name: Build
	run: npm run build

	# Step 5: Run test suite using vitest
	- name: Test
	run: npm test

	# Step 6: Report test results with PR comment
	- name: Comment PR with test results
	if: always()
	uses: actions/github-script@v7
	with:
	script: \|
	const outcome = '${{ job.status }}';
	const emoji = outcome === 'success' ? '✅' : '❌';
	const message = `${emoji} CI check result: ${outcome === 'success' ? 'Passed' : 'Failed'}

	Workflow: CI
	Status: ${outcome}
	Branch: ${{ github.head_ref }}
	Commit: ${{ github.sha }}

	${outcome === 'success' ?
	'All tests passed and build completed successfully.' :
	'Please check the logs for details and fix any issues before merging.'}`;

	github.rest.issues.createComment({
	issue_number: context.issue.number,
	owner: context.repo.owner,
	repo: context.repo.repo,
	body: message
	});

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