luci: minor edits to CONTRIBUTING.md and PR template #2523

	---
	name: "LuCI repo ESLint JS/ON and MD Analysis"

	on:
	push:
	branches: [ "master" ]
	path:
	- '*/.json'
	- '*/.js'
	- '*/.md'

	pull_request:
	branches: [ "master" ]
	path:
	- '*/.json'
	- '*/.js'
	- '*/.md'

	permissions: {}

	jobs:
	eslint:
	runs-on: ubuntu-latest
	steps:
	- name: Check out repository
	uses: actions/checkout@v6
	with:
	fetch-depth: 2

	- name: Set up Node.js
	uses: actions/setup-node@v6
	with:
	node-version: latest

	# eslint/json requires eslint@9 - 10 is coming.
	- name: Install ESLint
	run: \|
	npm install --no-audit --no-fund --save-dev \
	eslint@9 \
	@eslint/json@latest \
	@eslint/js \
	@eslint/markdown \
	eslint-formatter-gha

	# - name: Run ESLint (on whole repo)
	# run: npx eslint .

	- name: Run ESLint on changed files
	run: \|
	if [ "${{ github.event_name }}" = "pull_request" ]; then
	BASE="${{ github.event.pull_request.base.sha }}"
	HEAD="${{ github.event.pull_request.head.sha }}"
	else
	# push event: always diff last commit
	BASE="$(git rev-parse HEAD~1 2>/dev/null \|\| true)"
	HEAD="$(git rev-parse HEAD)"
	fi

	if [ -z "$BASE" ]; then
	FILES=$(git ls-files '.js' '.json' '*.md')
	else
	FILES=$(git diff --diff-filter=ACM --name-only "$BASE" "$HEAD" \
	\| grep -E '\.(js\|json\|md)$' \|\| true)
	fi

	if [ -z "$FILES" ]; then
	echo "No JS/JSON or MD files changed"
	exit 0
	fi

	echo "Linting files:"
	echo "$FILES"

	# One day we might need xargs with huge lists
	# echo "$FILES" \| xargs npx eslint -f gha

	# Until then, do it simply so we can see which error relates to which file
	npx eslint $FILES

Provide feedback