CI: Change CI workflow trigger to pull_request #4

	name: CI

	on:
	pull_request:

	permissions:
	contents: read # for checkout

	jobs:
	commitlint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0 # Fetch full history to check commit differences
	- name: Set up Node.js
	uses: actions/setup-node@v4
	with:
	node-version: '22.x'
	- name: Install dependencies
	run: npm ci
	- name: Validate all commits from push
	run: npx commitlint --from ${{ github.event.pull_request.base.sha }} --to ${{ github.event.pull_request.head.sha }} --verbose

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