chore: 移除 Jenkinsfile，新增 deploy/ 目录部署配置

- 移除不符合团队规范的 Jenkinsfile
- 新增 deploy/deployment.yaml（SWR 镜像、副本数1、私有镜像拉取 secrets）
- 新增 deploy/service.yaml（80 端口转发到容器 3000 端口）
- 新增 deploy/ingress.yaml（域名 personal.virtheart.com，Traefik + cert-manager）
- docker-compose.yml 改为使用 SWR 镜像，保证本地与生产一致
- README 更新部署说明

deploy/deployment.yaml

@@ -0,0 +1,70 @@
+# =========================================================
+# Arcticnewone 生产部署 - Deployment
+#
+# 镜像: 华为云 SWR swr.cn-north-4.myhuaweicloud.com/virtheart/arcticnewone:latest
+# 副本数: 1（团队规范）
+#
+# 私有镜像拉取说明:
+# 集群中需预先创建 docker-registry 类型的 Secret（凭据从环境变量读取，不写入仓库）:
+#   kubectl create secret docker-registry huawei-swr-secret \
+#     --docker-server="$SWR_REGISTRY" \
+#     --docker-username="$SWR_USERNAME" \
+#     --docker-password="$SWR_PASSWORD" \
+#     --dry-run=client -o yaml | kubectl apply -f -
+# 详见 deploy/README.md
+# =========================================================
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: arcticnewone
+  labels:
+    app: arcticnewone
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: arcticnewone
+  template:
+    metadata:
+      labels:
+        app: arcticnewone
+    spec:
+      imagePullSecrets:
+        - name: huawei-swr-secret
+      containers:
+        - name: arcticnewone
+          image: swr.cn-north-4.myhuaweicloud.com/virtheart/arcticnewone:latest
+          imagePullPolicy: Always
+          ports:
+            - name: http
+              containerPort: 3000
+          env:
+            - name: NODE_ENV
+              value: "production"
+            - name: HOST
+              value: "0.0.0.0"
+            - name: PORT
+              value: "3000"
+          resources:
+            requests:
+              cpu: 100m
+              memory: 128Mi
+            limits:
+              cpu: 500m
+              memory: 512Mi
+          readinessProbe:
+            httpGet:
+              path: /
+              port: 3000
+            initialDelaySeconds: 5
+            periodSeconds: 10
+            timeoutSeconds: 3
+            failureThreshold: 3
+          livenessProbe:
+            httpGet:
+              path: /
+              port: 3000
+            initialDelaySeconds: 15
+            periodSeconds: 20
+            timeoutSeconds: 3
+            failureThreshold: 3