[fix] #103 같은 유저의 중복 참가 방지 및 참가자 조회 로직 리팩토링 #62

	name: BUILD CHECK CI

	on:
	pull_request:
	branches: ["main", "release/**"]


	jobs:
	build:
	name: Build Test
	runs-on: ubuntu-latest
	env:
	JWT_SECRET_KEY: ${{ secrets.JWT_SECRET_KEY }}

	steps:
	- uses: actions/checkout@v4
	- name: Set up Jdk 21
	uses: actions/setup-java@v3
	with:
	distribution: 'temurin'
	java-version: '21'

	- name: Grant execute permission for gradlew
	run: chmod +x gradlew

	- name: Build with Gradle
	run: ./gradlew -x test clean build

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