TW: add Scratch.gui types #5

	name: Validate TypeScript

	on:
	push:
	pull_request:

	jobs:
	test:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	- name: Setup Node.js
	uses: actions/setup-node@v4
	with:
	node-version: 20
	cache: npm
	- name: Install dependencies
	run: npm ci
	- name: Validate TypeScript
	run: npm test
	- name: Validate individual .d.ts files
	run: \|
	set -e
	for i in index.d.ts types/*.d.ts; do
	echo "Validating $i"
	npx tsc "$i" --target es6 --noEmit
	done

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