Jenkinsfile에 Setup Kubernetes2 스테이지 추가

- namespace 생성 스테이지 복원

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

deployment/cicd/Jenkinsfile

@@ -76,6 +76,14 @@ podTemplate(
                 props = readProperties file: "deployment/cicd/config/deploy_env_vars_${environment}"
             }
 
+            stage("Setup Kubernetes2") {
+                container('kubectl') {
+                    sh """
+                          kubectl create namespace ${props.namespace} --dry-run=client -o yaml | kubectl apply -f -
+                        """
+                }
+            }
+
             stage('Build') {
                 container('gradle') {
                     sh """