ci(deps): bump actions/checkout from 4 to 6 #32

	name: Conventional Commits

	on:
	pull_request:
	types:
	- opened
	- edited
	- reopened
	- synchronize
	push:
	branches:
	- main

	jobs:
	conventional-commits:
	runs-on: ubuntu-latest

	steps:
	- name: Validate pull request title
	if: github.event_name == 'pull_request'
	env:
	PR_TITLE: ${{ github.event.pull_request.title }}
	run: \|
	if [[ ! "$PR_TITLE" =~ ^(feat\|fix\|docs\|style\|refactor\|perf\|test\|build\|ci\|chore\|revert)($[a-z0-9._/-]+$)?(!)?:\ .+ ]]; then
	echo "Pull request title must follow Conventional Commits format."
	echo "Example: feat(worktree): add integration branch cleanup"
	echo "Current title: $PR_TITLE"
	exit 1
	fi

	- name: Checkout
	if: github.event_name == 'push'
	uses: actions/checkout@v6
	with:
	fetch-depth: 0

	- name: Validate commit subjects on main
	if: github.event_name == 'push'
	env:
	BEFORE_SHA: ${{ github.event.before }}
	AFTER_SHA: ${{ github.sha }}
	run: \|
	set -euo pipefail

	if [ "$BEFORE_SHA" = "0000000000000000000000000000000000000000" ]; then
	RANGE="$AFTER_SHA"
	else
	RANGE="$BEFORE_SHA..$AFTER_SHA"
	fi

	invalid=0
	while IFS= read -r subject; do
	[ -z "$subject" ] && continue

	if [[ "$subject" =~ ^Merge\ ]]; then
	continue
	fi

	if [[ "$subject" =~ ^(feat\|fix\|docs\|style\|refactor\|perf\|test\|build\|ci\|chore\|revert)($[a-z0-9._/-]+$)?(!)?:\ .+ ]]; then
	continue
	fi

	echo "Invalid commit subject: $subject"
	invalid=1
	done < <(git log --format=%s "$RANGE")

	if [ "$invalid" -ne 0 ]; then
	exit 1
	fi

Provide feedback