fix: recursive data nesting guard + VM destroy in uninstall wizard

- Cleaned 242MB of recursive data/data/data/ nesting
- Added nesting-guard.js: auto-detects and removes recursive duplicates at startup
- Wired VM sandbox cleanup into uninstall wizard (calls vmDestroy before regular uninstall)
- Container stats, health data, and VM disk all cleaned on uninstall

dashcaddy-api/src/utilities/i18n.js

@@ -135,6 +135,44 @@ const TRANSLATIONS = {
     'error.disk_full': 'Espace disque critique',
   },
 
+  zh: {
+    'dashboard.title': '仪表盘',
+    'dashboard.services': '服务',
+    'dashboard.containers': '容器',
+    'dashboard.health': '健康',
+    'dashboard.settings': '设置',
+    'dashboard.backups': '备份',
+    'dashboard.monitoring': '监控',
+    'dashboard.security': '安全',
+
+    'service.status.healthy': '健康',
+    'service.status.degraded': '降级',
+    'service.status.down': '宕机',
+    'service.status.unknown': '未知',
+    'service.status.pending': '待处理',
+
+    'action.start': '启动',
+    'action.stop': '停止',
+    'action.restart': '重启',
+    'action.delete': '删除',
+    'action.update': '更新',
+    'action.deploy': '部署',
+    'action.save': '保存',
+    'action.cancel': '取消',
+    'action.confirm': '确认',
+
+    'error.not_found': '未找到资源',
+    'error.unauthorized': '未授权',
+    'error.forbidden': '禁止访问',
+    'error.rate_limited': '请求过多',
+    'error.internal': '内部服务器错误',
+    'error.container_not_found': '未找到容器',
+    'error.service_not_found': '未找到服务',
+    'error.invalid_input': '输入无效',
+    'error.docker_unreachable': '无法连接 Docker 守护进程',
+    'error.disk_full': '磁盘空间严重不足',
+  },
+
   de: {
     'dashboard.title': 'Dashboard',
     'dashboard.services': 'Dienste',