Add Jenkinsfile and deploy script (build on NAS checkout, compose up -d).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Jenkinsfile

@@ -0,0 +1,77 @@
+pipeline {
+  agent any
+
+  environment {
+    SSH_CONFIG_NAME = 'SEJONG-NAS'
+    DEPLOY_DIR = '/volume1/docker/docker-registry-aio'
+  }
+
+  options {
+    timestamps()
+    disableConcurrentBuilds()
+    buildDiscarder(logRotator(numToKeepStr: '20'))
+  }
+
+  stages {
+    stage('Validate') {
+      steps {
+        sh '''
+          set -eu
+          # No .env in the workspace: compose falls back to defaults, enough to check syntax.
+          docker compose config -q
+          sh -n scripts/deploy.sh
+        '''
+      }
+    }
+
+    stage('Build') {
+      steps {
+        // Same Dockerfile the NAS builds; the agent shares the host daemon,
+        // so this also warms the build cache for the Deploy stage.
+        sh '''
+          set -eu
+          tag="registry-aio-app-ci:$(printf '%s' "$BUILD_TAG" | tr -c 'A-Za-z0-9_.-' '-' | cut -c1-128)"
+          trap 'docker image rm "$tag" >/dev/null 2>&1 || true' EXIT
+          docker build -t "$tag" app
+        '''
+      }
+    }
+
+    stage('Deploy') {
+      when {
+        allOf {
+          not { changeRequest() }
+          anyOf {
+            branch 'main'
+            expression {
+              def branch = env.GIT_BRANCH ?: env.BRANCH_NAME ?: ''
+              branch == 'main' || branch == 'origin/main' || branch == 'refs/heads/main'
+            }
+          }
+        }
+      }
+      steps {
+        // Keep the existing flow: the NAS checkout is the deployment.
+        // Fast-forward it to the built commit, then rebuild app and `compose up -d` there.
+        sshPublisher(
+          failOnError: true,
+          publishers: [
+            sshPublisherDesc(
+              configName: env.SSH_CONFIG_NAME,
+              verbose: true,
+              transfers: [
+                sshTransfer(
+                  execTimeout: 1800000,
+                  usePty: true,
+                  execCommand: """
+                    sudo -n su -c 'set -eu; export PATH=/usr/local/bin:/usr/bin:/bin; cd "${env.DEPLOY_DIR}"; git fetch -q origin main; git checkout -q main; git merge --ff-only "${env.GIT_COMMIT}"; sh scripts/deploy.sh'
+                  """.stripIndent().trim()
+                )
+              ]
+            )
+          ]
+        )
+      }
+    }
+  }
+}