refactor(i18n): U43 深度残余硬编码中文 UI 文本清零 — 17 文件 ~40 处→0

趋势标签(上升/下降/平稳) + K8s 卡片标题(Pod级别/安全上下文/实例/详情) + data-table 默认值(搜索/暂无数据) + Deployment 编辑器标签(数据卷/挂载/只读写/manifest提示/镜像拉取凭证) + HostSettings 4 个命名空间描述 + 7 个 K8s 页面刷新按钮 + 资源编辑器新建/编辑 + Agent 执行命令描述 + 账单保存成功 toast + 容量预警标题

新增 common 30 语义化翻译键, zh/en 7898→7928 对齐
tsc -b=0, npm build✓ (16.55s), ESLint=0/43/any=0, go build=0, 17/17 测试通过

frontend/src/locales/zh-CN.json

@@ -636,7 +636,33 @@
     "last1Hour": "最近 1 小时",
     "currentHost": "当前主机: {{host}}",
     "minutes30": "30分钟",
-    "hours2": "2小时"
+    "hours2": "2小时",
+    "trendUp": "上升",
+    "trendDown": "下降",
+    "trendStable": "平稳",
+    "executeOn": "在 {{host}} 上执行命令",
+    "podLevel": "Pod 级别",
+    "podSecurityContext": "Pod 安全上下文 (securityContext)",
+    "hostNetworkDesc": "hostNetwork（共享主机网络命名空间）",
+    "hostIPCDesk": "hostIPC（共享主机 IPC 命名空间）",
+    "hostPIDDesk": "hostPID（共享主机 PID 命名空间）",
+    "shareProcessNamespaceDesc": "shareProcessNamespace（共享进程命名空间）",
+    "podInstances": "Pod 实例 ({{count}})",
+    "podDetail": "Pod 详情",
+    "metricTrend": "指标趋势",
+    "portDiscovery": "端口发现 ({{count}})",
+    "remoteCommand": "远程命令",
+    "searchPlaceholder": "搜索...",
+    "imagePullSecrets": "镜像拉取凭证 (imagePullSecrets)",
+    "noManifestHint": "未获取到 manifest 数据，请使用 YAML 编辑模式直接修改。",
+    "volumeDefinition": "数据卷",
+    "noVolumeHint": "未配置数据卷，点击「添加数据卷」开始",
+    "mountToContainers": "将上述数据卷挂载到容器",
+    "readOnly": "只读",
+    "readWrite": "读写",
+    "manageAll": "管理全部",
+    "createNew": "新建",
+    "saveSuccess": "保存成功"
   },
   "menu": {
     "aiAgentCli": "Agent CLI",
@@ -3713,7 +3739,8 @@
     "kubectlTerminalDesc": "Kubernetes 集群命令行终端",
     "podLevel": "Pod 级别",
     "podNameLabel": "Pod 名称",
-    "podManagePolicy": "Pod 管理策略"
+    "podManagePolicy": "Pod 管理策略",
+    "uploadFile": "上传"
   },
   "monitor": {
     "acknowledge": "确认告警",
@@ -8021,7 +8048,10 @@
       "expectedToReach": "预计",
       "days": "天",
       "afterReachThreshold": "后达到阈值",
-      "aiSuggestion": "AI建议"
+      "aiSuggestion": "AI建议",
+      "warningTitle": "容量规划预警",
+      "currentThreshold": "当前 {{current}} / 阈值 {{threshold}}",
+      "predictedLabel": "，预测 {{predicted}}"
     },
     "capacityPlanPrompt": "根据以下主机资源使用数据，提供成本优化和容量规划建议（识别闲置/过载主机，给出缩容/扩容建议）",
     "capacityPlanning": "容量规划",