refactor(i18n): U19 i18n hash 键治理 — 删除 866 死键 + 重命名 21 高频键

死键清理: 从 zh-CN.json 和 en-US.json 移除 866 个重构遗弃的 unreferenced
hash keys (filename.hash 格式)。这些键在组件迁移到语义化键后成为孤儿。

Live 键重命名 (21 个):
  ui.datatable.s1a2b3c4d → selectedCount
  ui.datatable.s2b3c4d5e → columns
  ui.datatable.s3c4d5e6f → totalCount
  aiops.predictive.s{1-3} → metricsTab/capacityTab/costTab
  aiops.predictivecost.s{1-3} → aiFailed/overview/aiInsight
  task.systemtaskspanel.s{1-3} → monitor/cleanup/finops
  aiops.agentcli.s{1-3} → archLayer/archDesc/securityLayer
  system.useldapmanageme.s{1-2} → ouExists/createOuFailed
  common.requestts.sd3ab821c → common.request.tokenExpired
  k8s.editAdvanced.s0c1fec65 → secondsPlaceholder
  k8s.{kubectl,podExec}.sc8107726 → connectErrorAnsi

影响: zh/en 7597→6731 keys 对齐, 文件 328KB→276KB (-16%)
      仍有 172 个 live hash keys 待后续重命名

tsc -b=0, npm build✓ (17.45s), ESLint=0/66/0, go build=0, 17/17 测试通过

frontend/src/components/aiops/AIPredictiveAnalytics.tsx

@@ -120,9 +120,9 @@ export function AIPredictiveAnalytics() {
   };
 
   const pageTabs = [
-    { id: 'metrics', label: t('aiops.predictive.s1a2b3c4d') },
-    { id: 'capacity', label: t('aiops.predictive.s2b3c4d5e') },
-    { id: 'cost', label: t('aiops.predictive.s3c4d5e6f') },
+    { id: 'metrics', label: t('aiops.predictive.metricsTab') },
+    { id: 'capacity', label: t('aiops.predictive.capacityTab') },
+    { id: 'cost', label: t('aiops.predictive.costTab') },
   ];
 
   return (

frontend/src/components/aiops/PredictiveCostTab.tsx

@@ -60,7 +60,7 @@ export function PredictiveCostTab({
       const res = await aiApi.chat([{ role: 'user', content: prompt }]);
       setInsight(res?.content || '');
     } catch {
-      toast.error(t('aiops.predictivecost.s1a2b3c4d'));
+      toast.error(t('aiops.predictivecost.aiFailed'));
     } finally {
       setAnalyzing(false);
     }
@@ -73,7 +73,7 @@ export function PredictiveCostTab({
           <div className="flex items-center justify-between">
             <CardTitle className="text-[var(--dg-text-primary)] flex items-center gap-2">
               <Wallet className="h-5 w-5 dg-text-emerald" />
-              {t('aiops.predictivecost.s2b3c4d5e')}
+              {t('aiops.predictivecost.overview')}
             </CardTitle>
             {!loading && hasData && (
               <Button
@@ -88,7 +88,7 @@ export function PredictiveCostTab({
                 ) : (
                   <Sparkles className="h-3.5 w-3.5 mr-1" />
                 )}
-                {t('aiops.predictivecost.s3c4d5e6f')}
+                {t('aiops.predictivecost.aiInsight')}
               </Button>
             )}
           </div>

frontend/src/components/kubernetes/KubectlTerminal.tsx

@@ -109,7 +109,7 @@ export function KubectlTerminal({ open, onOpenChange, clusterId, clusterName }:
     ws.onerror = () => {
       setError(i18n.t('k8s.kubectl.failed'));
       setHasOutput(true);
-      term.write(i18n.t('k8s.kubectl.sc8107726'));
+      term.write(i18n.t('k8s.kubectl.connectError'));
     };
 
     return () => {

frontend/src/components/kubernetes/deployment-edit-advanced/TolerationsCard.tsx

@@ -47,7 +47,7 @@ export function TolerationsCard({ tolerations, onAdd, onRemove, onUpdate }: Tole
               <option value="PreferNoSchedule">PreferNoSchedule</option>
               <option value="NoExecute">NoExecute</option>
             </select>
-            <Input value={t.tolerationSeconds} placeholder={i18n.t('k8s.editAdvanced.s0c1fec65')} disabled={t.effect !== 'NoExecute'}
+            <Input value={t.tolerationSeconds} placeholder={i18n.t('k8s.editAdvanced.seconds')} disabled={t.effect !== 'NoExecute'}
               onChange={e => onUpdate(i, { tolerationSeconds: e.target.value })}
               className="h-7 dg-input text-xs font-mono" />
             <Button variant="ghost" size="icon" className="h-7 w-7 dg-text-red" onClick={() => onRemove(i)}>

frontend/src/components/system/useLdapManagement.ts

@@ -146,7 +146,7 @@ export function useLdapManagement(onUsersChanged: () => Promise<void> | void) {
     } catch (e) {
       const msg = e?.message || '';
       if (msg.includes('Already Exists') || msg.includes('68')) {
-        toast.error(i18n.t('system.useldapmanageme.s1a2b3c4d', { name: ouForm.ou_name }));
+        toast.error(i18n.t('system.useldapmanageme.ouExists', { name: ouForm.ou_name }));
       } else {
         toast.error(i18n.t('创建失败: ') + msg);
       }

frontend/src/components/task/SystemTasksPanel.tsx

@@ -16,9 +16,9 @@ import {
 } from 'lucide-react';
 
 const categoryLabel: Record<string, string> = {
-  get monitor() { return i18n.t('task.systemtaskspanel.s1a2b3c4d'); },
-  get cleanup() { return i18n.t('task.systemtaskspanel.s2b3c4d5e'); },
-  get finops() { return i18n.t('task.systemtaskspanel.s3c4d5e6f'); },
+  get monitor() { return i18n.t('task.systemtaskspanel.monitor'); },
+  get cleanup() { return i18n.t('task.systemtaskspanel.cleanup'); },
+  get finops() { return i18n.t('task.systemtaskspanel.finops'); },
 };
 
 function statusBadge(status?: string) {

frontend/src/components/ui/data-table.tsx

@@ -412,7 +412,7 @@ export function DataTable<T = Record<string, unknown>>(
             )}
             {selectable && (selectedIds?.length ?? 0) > 0 && (
               <Badge variant="secondary" className="bg-[var(--dg-bg-active)] text-[var(--dg-text-secondary)] border-[var(--dg-border)]">
-                {i18n.t("ui.datatable.s1a2b3c4d", { count: selectedIds!.length })}
+                {i18n.t("ui.datatable.selectedCount", { count: selectedIds!.length })}
               </Badge>
             )}
           </div>
@@ -423,7 +423,7 @@ export function DataTable<T = Record<string, unknown>>(
                 <DropdownMenuTrigger asChild>
                   <Button variant="outline" size="sm" className="h-8 gap-1.5 border-[var(--dg-border)] text-[var(--dg-text-secondary)] hover:bg-[var(--dg-bg-hover)] hover:text-[var(--dg-text-primary)]">
                     <Eye className="h-3.5 w-3.5" />
-                    <span className="hidden sm:inline">{i18n.t("ui.datatable.s2b3c4d5e")}</span>
+                    <span className="hidden sm:inline">{i18n.t("ui.datatable.columns")}</span>
                   </Button>
                 </DropdownMenuTrigger>
                 <DropdownMenuContent align="end" className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
@@ -579,7 +579,7 @@ export function DataTable<T = Record<string, unknown>>(
         <div className="flex items-center justify-between gap-2 px-1 py-2 flex-wrap">
           <div className="flex items-center gap-3">
             <span className="text-sm text-[var(--dg-text-muted)]">
-              {i18n.t("ui.datatable.s3c4d5e6f", { count: sortedData.length })}
+              {i18n.t("ui.datatable.totalCount", { count: sortedData.length })}
             </span>
             {selectable && (selectedIds?.length ?? 0) > 0 && (
               <span className="text-sm text-[var(--dg-text-muted)]">