ci: add Jenkinsfile for CI/CD pipeline (main)

Jenkinsfile

@@ -0,0 +1,36 @@
+pipeline {
+    agent any
+
+    environment {
+        DEPLOY_USER = 'hskwon'
+    }
+
+    stages {
+        stage('Checkout') {
+            steps { checkout scm }
+        }
+
+        // ── main → 운영서버 Production 배포 ──
+        stage('Deploy Production') {
+            when { branch 'main' }
+            steps {
+                sshagent(credentials: ['deploy-ssh-key']) {
+                    sh """
+                        rsync -az --delete \
+                            --exclude='.git' \
+                            --exclude='.env' \
+                            --exclude='storage' \
+                            . ${DEPLOY_USER}@211.117.60.189:/home/webservice/sales/
+
+                        ssh ${DEPLOY_USER}@211.117.60.189 'cd /home/webservice/sales && echo "sales deployed"'
+                    """
+                }
+            }
+        }
+    }
+
+    post {
+        success { echo '✅ sales 배포 완료 (' + env.BRANCH_NAME + ')' }
+        failure { echo '❌ sales 배포 실패 (' + env.BRANCH_NAME + ')' }
+    }
+}