fix: JoinRoom 비밀번호 검증 조건 및 응답 형식 개선 #11

	name: CI - PR Convention

	on:
	pull_request:
	types: [opened, edited, synchronize]

	jobs:
	pr-check:
	runs-on: ubuntu-latest
	steps:
	- name: Validate PR title
	run: \|
	TITLE="${{ github.event.pull_request.title }}"

	if [[ ! "$TITLE" =~ ^(feat\|fix\|update\|docs\|refactor\|test\|chore):\ .+ ]]; then
	echo "PR title must follow convention: {type}: {description}"
	echo ""
	echo "Allowed types: feat, fix, update, docs, refactor, test, chore"
	echo ""
	echo "Examples:"
	echo " feat: 방 참여 기능 추가"
	echo " fix: 세션 만료 버그 수정"
	echo " update: Room 엔터티 수정"
	echo " docs: API 문서 업데이트"
	exit 1
	fi

	echo "PR title is valid: $TITLE"

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