added pipeline definitions #2

	# Pipeline to run code quality checks (eslint, prettier, typecheck)
	name: Code Validation

	env:
	node_version: 20.x
	package_manager: yarn # or npm
	install_command: yarn install # or npm ci
	script_command: yarn # or npm run

	on:
	workflow_dispatch: # manual trigger
	pull_request:
	branches: [main]

	concurrency:
	group: project-validation
	cancel-in-progress: false

	jobs:
	validate:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Enable Corepack
	run: corepack enable

	- name: Setup Node.js
	uses: actions/setup-node@v4
	with:
	node-version: ${{ env.node_version }}
	cache: ${{ env.package_manager }}

	- name: Install dependencies
	run: ${{ env.install_command }}

	- name: Run ESLint
	run: \|
	${{ env.script_command }} lint

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