fix(i18n): hardkodierte Strings in DNS/RoutingRules/Settings/Backends bereinigen

- DNS Settings: Loopback/allIPv4/allIPv6 Interface-Labels in t() überführt
- RoutingRules: UP/DOWN-Tags + fehlende onError-Handler in create/update
- Settings: t-Variable-Shadowing in top_tables-Map behoben (t → tbl)
- Backends: 'Live'-Spaltenheader → t('backends.server.live')
- common.up/down + dns.settings.allIPv4/allIPv6/loopback in en+de ergänzt

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

management-ui/src/i18n/locales/de/common.json

@@ -367,7 +367,8 @@
       "backup": "Backup",
       "backupHint": "Backup-Server werden nur angesprochen, wenn alle primären Server (non-backup) down sind.",
       "empty": "Noch keine Server im Pool. „Server hinzufügen\" startet damit.",
-      "deleteConfirm": "Server {{name}} wirklich löschen?"
+      "deleteConfirm": "Server {{name}} wirklich löschen?",
+      "live": "Live"
     }
   },
   "routing": {
@@ -868,7 +869,10 @@
       "dnssec": "DNSSEC validieren",
       "qnameMin": "QName-Minimisation (privacy)",
       "cacheMin": "Cache min-TTL",
-      "cacheMax": "Cache max-TTL"
+      "cacheMax": "Cache max-TTL",
+      "allIPv4": "alle IPv4-Interfaces",
+      "allIPv6": "alle IPv6-Interfaces",
+      "loopback": "Loopback"
     }
   },
   "fwd": {
@@ -934,6 +938,8 @@
     "copied": "Kopiert",
     "close": "Schließen",
     "refresh": "Aktualisieren",
+    "up": "UP",
+    "down": "DOWN",
     "relTime": {
       "Xs": "vor {{n}}s",
       "Xm": "vor {{n}}m",

management-ui/src/i18n/locales/en/common.json

@@ -367,7 +367,8 @@
       "backup": "Backup",
       "backupHint": "Backup servers receive traffic only when every primary (non-backup) server is down.",
       "empty": "No servers in the pool yet. Click “Add server” to get started.",
-      "deleteConfirm": "Really delete server {{name}}?"
+      "deleteConfirm": "Really delete server {{name}}?",
+      "live": "Live"
     }
   },
   "routing": {
@@ -868,7 +869,10 @@
       "dnssec": "DNSSEC validation",
       "qnameMin": "QName minimisation (privacy)",
       "cacheMin": "Cache min-TTL",
-      "cacheMax": "Cache max-TTL"
+      "cacheMax": "Cache max-TTL",
+      "allIPv4": "all IPv4 interfaces",
+      "allIPv6": "all IPv6 interfaces",
+      "loopback": "Loopback"
     }
   },
   "fwd": {
@@ -934,6 +938,8 @@
     "copied": "Copied",
     "close": "Close",
     "refresh": "Refresh",
+    "up": "UP",
+    "down": "DOWN",
     "relTime": {
       "Xs": "{{n}}s ago",
       "Xm": "{{n}}m ago",

management-ui/src/pages/Backends/Detail.tsx

@@ -309,7 +309,7 @@ function ServerPanel({ backendID, haproxyStats }: { backendID: number; haproxySt
       ),
     },
     {
-      title: 'Live', key: 'live', width: 160,
+      title: t('backends.server.live'), key: 'live', width: 160,
       render: (_, r) => {
         const stat = haproxyStats.find(
           s => s.backend === `eg_backend_${backendID}` && s.server === r.name

management-ui/src/pages/DNS/index.tsx

@@ -442,10 +442,10 @@ function SettingsTab() {
   // Mode "tags" damit der Operator notfalls auch eine IP eintippen kann
   // die der Kernel noch nicht meldet (z.B. eine geplante VIP).
   const ipOptions: { value: string; label: string }[] = []
-  ipOptions.push({ value: '0.0.0.0', label: '0.0.0.0 — alle IPv4-Interfaces' })
-  ipOptions.push({ value: '::',      label: ':: — alle IPv6-Interfaces' })
-  ipOptions.push({ value: '127.0.0.1', label: '127.0.0.1 — Loopback IPv4' })
-  ipOptions.push({ value: '::1',       label: '::1 — Loopback IPv6' })
+  ipOptions.push({ value: '0.0.0.0', label: `0.0.0.0 — ${t('dns.settings.allIPv4')}` })
+  ipOptions.push({ value: '::',      label: `:: — ${t('dns.settings.allIPv6')}` })
+  ipOptions.push({ value: '127.0.0.1', label: `127.0.0.1 — ${t('dns.settings.loopback')} IPv4` })
+  ipOptions.push({ value: '::1',       label: `::1 — ${t('dns.settings.loopback')} IPv6` })
   for (const i of sys ?? []) {
     if (i.ifname === 'lo') continue
     for (const a of i.addr_info ?? []) {

management-ui/src/pages/RoutingRules/index.tsx

@@ -106,6 +106,7 @@ export default function RoutingRulesPage() {
       form.resetFields()
       void qc.invalidateQueries({ queryKey: ['routing-rules'] })
     },
+    onError: (e: Error) => message.error(e.message),
   })
   const update = useMutation({
     mutationFn: async ({ id, v }: { id: number; v: RuleFormValues }) => {
@@ -117,6 +118,7 @@ export default function RoutingRulesPage() {
       form.resetFields()
       void qc.invalidateQueries({ queryKey: ['routing-rules'] })
     },
+    onError: (e: Error) => message.error(e.message),
   })
   const del = useMutation({
     mutationFn: async (id: number) => { await apiClient.delete(`/routing-rules/${id}`) },
@@ -144,7 +146,7 @@ export default function RoutingRulesPage() {
             <span>{backendLabel(id)}</span>
             {h && (
               <Tooltip title={tip}>
-                <Tag color={h.up ? 'green' : 'red'} style={{ margin: 0 }}>{h.up ? 'UP' : 'DOWN'}</Tag>
+                <Tag color={h.up ? 'green' : 'red'} style={{ margin: 0 }}>{h.up ? t('common.up') : t('common.down')}</Tag>
               </Tooltip>
             )}
           </Space>

management-ui/src/pages/Settings/index.tsx

@@ -326,8 +326,8 @@ export default function SettingsPage() {
                 {dbSize.top_tables.length > 0 && (
                   <Typography.Text type="secondary" style={{ fontSize: 11 }}>
                     {t('settings.dbSizeTop')}:{' '}
-                    {dbSize.top_tables.slice(0, 3).map(t =>
-                      `${t.name} (${t.human_size})`
+                    {dbSize.top_tables.slice(0, 3).map(tbl =>
+                      `${tbl.name} (${tbl.human_size})`
                     ).join(', ')}
                   </Typography.Text>
                 )}