feat: add Jenkinsfile

Jenkinsfile

@@ -0,0 +1,68 @@
+pipeline {
+    agent any
+    environment {
+        SRC    = '/opt/mail'
+        STATIC = '/var/www/mail'
+        NOTIFY = "http://127.0.0.1:9001/api/messenger/webhook"
+    }
+    options {
+        buildDiscarder(logRotator(numToKeepStr: '5'))
+        timeout(time: 20, unit: 'MINUTES')
+        timestamps()
+    }
+    stages {
+        stage('Checkout') { steps { checkout scm } }
+
+        stage('Frontend Build') {
+            steps {
+                dir('frontend') {
+                    sh 'npm ci --legacy-peer-deps 2>/dev/null || npm install --legacy-peer-deps'
+                    sh 'npm run build'
+                }
+            }
+        }
+
+        stage('Deploy') {
+            when {
+                expression { env.GIT_BRANCH ==~ /.*main/ || env.BRANCH_NAME == 'main' }
+            }
+            steps {
+                sh """
+                    # Frontend 정적 파일
+                    mkdir -p ${STATIC}
+                    cp -r dist/. ${STATIC}/
+
+                    # Backend 소스
+                    rsync -a --exclude=__pycache__ --exclude=.git \
+                          --exclude='*.pyc' --exclude='.env' \
+                          backend/ ${SRC}/backend/
+
+                    # 패키지 설치
+                    ${SRC}/venv/bin/pip install -r backend/requirements.txt -q
+
+                    # 서비스 재기동
+                    systemctl restart zioinfo-mail
+                    sleep 4
+                    systemctl is-active zioinfo-mail || exit 1
+
+                    # 헬스체크
+                    curl -sf http://localhost:8026/health || exit 1
+                """
+            }
+        }
+    }
+    post {
+        success {
+            sh """curl -sf -X POST ${NOTIFY} \
+              -H 'Content-Type:application/json' \
+              -d '{"event":"build_result","room":"ops","success":true,"result_summary":"✅ zioinfo-mail 배포 완료 #${BUILD_NUMBER}"}' \
+              2>/dev/null || true"""
+        }
+        failure {
+            sh """curl -sf -X POST ${NOTIFY} \
+              -H 'Content-Type:application/json' \
+              -d '{"event":"build_result","room":"ops","success":false,"result_summary":"❌ zioinfo-mail 빌드 실패 #${BUILD_NUMBER}"}' \
+              2>/dev/null || true"""
+        }
+    }
+}