ci: Jenkinsfile tokenCredentialId 추가 및 배포 디렉토리 생성

- slackSend 3곳에 tokenCredentialId: 'slack-token' 추가
- Deploy: mkdir -p bootstrap/cache storage/framework 추가
- tokenCredentialId 누락 시 Slack Bot Token 인증 실패 방지

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Jenkinsfile

@@ -9,7 +9,7 @@ pipeline {
     stages {
         stage('Checkout') {
             steps {
-                slackSend channel: '#product_infra', color: '#439FE0',
+                slackSend channel: '#product_infra', color: '#439FE0', tokenCredentialId: 'slack-token',
                     message: "🚀 *mng* 빌드 시작 (`${env.BRANCH_NAME}`)\n<${env.BUILD_URL}|빌드 #${env.BUILD_NUMBER}>"
                 checkout scm
             }
@@ -33,6 +33,7 @@ pipeline {
 
                         ssh ${DEPLOY_USER}@211.117.60.189 '
                             cd /home/webservice/mng/releases/${RELEASE_ID} &&
+                            mkdir -p bootstrap/cache storage/framework/{views,cache/data,sessions} storage/logs &&
                             ln -sfn /home/webservice/mng/shared/.env .env &&
                             ln -sfn /home/webservice/mng/shared/storage/app storage/app &&
                             composer install --no-dev --optimize-autoloader --no-interaction &&
@@ -56,11 +57,11 @@ pipeline {
 
     post {
         success {
-            slackSend channel: '#product_infra', color: 'good',
+            slackSend channel: '#product_infra', color: 'good', tokenCredentialId: 'slack-token',
                 message: "✅ *mng* 배포 성공 (`${env.BRANCH_NAME}`)\n<${env.BUILD_URL}|빌드 #${env.BUILD_NUMBER}>"
         }
         failure {
-            slackSend channel: '#product_infra', color: 'danger',
+            slackSend channel: '#product_infra', color: 'danger', tokenCredentialId: 'slack-token',
                 message: "❌ *mng* 배포 실패 (`${env.BRANCH_NAME}`)\n<${env.BUILD_URL}|빌드 #${env.BUILD_NUMBER}>"
             script {
                 if (env.BRANCH_NAME == 'main') {