fix(jenkins): new docker host rootless

Jenkinsfile

@@ -1,8 +1,9 @@
 pipeline {
     agent any
     environment {
-        DOCKER_HOST = "unix:///var/run/docker.sock"
+        DOCKER_HOST = "unix:///run/user/1001/docker.sock"
         APP_VERSION = "${env.BRANCH_NAME}-${env.BUILD_NUMBER}"
+        DOCKER_CONFIG = "${env.WORKSPACE}/.docker"
     }
     stages {
         stage('Build') {
@@ -58,7 +59,7 @@ pipeline {
                 sh "docker exec caddy-reverse-proxy caddy reload --config /etc/caddy/Caddyfile"
 
                 // Keep updated docker-compose.yml and Caddyfile for safety
-                sh "cp docker-compose.yml /backup-portfolio/docker-compose.yml"
+                sh "docker cp docker-compose.yml jenkins:/backup-portfolio/docker-compose.yml"
                 sh "docker cp portfolio:/etc/caddy/Caddyfile /backup-portfolio/Caddyfile"
             }
         }