docs: update README with comprehensive build and setup instructions #429

	# SPDX-FileCopyrightText: 2025 robot-visual-perception
	#
	# SPDX-License-Identifier: MIT

	name: DCO Check

	on:
	pull_request:
	branches: [main]

	permissions:
	contents: read
	pull-requests: read

	jobs:
	check-signoff:
	name: Check commit sign-off and allowed emails
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Get PR commits
	id: get_commits
	uses: tim-actions/get-pr-commits@v1.1.0
	with:
	token: ${{ secrets.GITHUB_TOKEN }}

	- name: DCO check
	uses: tim-actions/dco@v1.1.0
	with:
	commits: ${{ steps.get_commits.outputs.commits }}

	- name: Check allowed emails in commit messages
	shell: bash
	run: \|
	set -euo pipefail
	BASE_SHA='${{ github.event.pull_request.base.sha }}'
	HEAD_SHA='${{ github.event.pull_request.head.sha }}'

	IFS=',' read -ra ALLOWED <<< "${{ vars.ALLOWED_SIGNOFF_EMAILS }}"
	for sha in $(git rev-list "$BASE_SHA..$HEAD_SHA"); do
	msg="$(git show -s --format=%B "$sha")"
	ok=0
	for email in "${ALLOWED[@]}"; do
	if echo "$msg" \| grep -Fqi "$(echo "$email" \| xargs)"; then
	ok=1; break
	fi
	done
	if (( ! ok )); then
	echo "❌ $sha has no allowed email in commit message"
	echo "---- commit message ----"
	echo "$msg"
	echo "------------------------"
	exit 1
	fi
	echo "✅ $sha has one or more of allowed emails in commit message"
	done

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