chore: pull-request 리팩토링

.github/actions/setup/action.yml

@@ -0,0 +1,13 @@
+name: Setup
+description: 'Node.js와 Yarn 패키지를 설치합니다.'
+runs:
+  using: 'composite'
+  steps:
+    - name: Node.js 설정
+      uses: actions/setup-node@v3
+      with:
+        node-version: 18.x
+
+    - name: Yarn 패키지 설치
+      run: yarn
+      shell: bash

.github/workflows/pull-request.yml

@@ -0,0 +1,46 @@
+name: Build & Test
+
+on:
+  pull_request:
+    branches: ['main']
+
+jobs:
+  react:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Node.js 및 Yarn 설치
+        uses: ./.github/actions/setup
+
+      - name: React 앱 빌드
+        run: yarn web build
+  express:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Node.js 및 Yarn 설치
+        uses: ./.github/actions/setup
+
+      - name: env 파일 생성
+        run: |
+          echo "${{ secrets.EXPRESS_ENV_FILE }}" >> .env
+          mv .env packages/slack/.env
+          cat packages/slack/.env
+
+      - name: Express 앱 빌드
+        run: yarn slack build
+
+      - name: Express 앱 테스트 코드 실행
+        run: yarn slack test
+  api-docs:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Node.js 및 Yarn 설치
+        uses: ./.github/actions/setup
+
+      - name: API 문서 빌드
+        run: yarn api-docs build