chore: replace nvmrc with tool-versions and update workflow #592

	name: main

	on:
	push:
	pull_request:

	jobs:
	build:
	runs-on: ubuntu-24.04
	steps:
	- uses: actions/checkout@v4

	- uses: actions/setup-node@v4
	with:
	node-version-file: ".tool-versions"
	cache: "npm"

	- name: Install
	run: npm ci
	- name: Build
	run: npm run build
	- name: Test
	run: npm run test
	- name: Format
	run: npm run fmtcheck
	# - name: "check for uncommitted changes"
	# # Ensure no changes, but ignore node_modules dir since dev/fresh ci deps installed.
	# run: \|
	# git diff --exit-code --stat -- . ':!node_modules' \
	# \|\| (echo "##[error] found changed files after build. please 'npm run build && npm run fmt'" \
	# "and check in all changes" \
	# && exit 1)

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