fix(i18n): MonitoringTools 硬編碼中文 → i18n keys + MTTR 趨勢改為真實計算

- MonitoringTools: 載入中/無法連線/觸發/正常/離線/版本/統計/更新 → useTranslations
- MTTR 趨勢: '↓2m' hardcode → 前半/後半 resolved incidents 真實比較
- zh-TW.json + en.json: 新增 connectionError/monitoringStatus.firing/metaVersion/metaStats/metaUpdatedAt

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

apps/web/messages/en.json

@@ -148,8 +148,14 @@
     "monitoringStatus": {
       "up": "OK",
       "down": "Down",
-      "unknown": "Unknown"
-    }
+      "unknown": "Unknown",
+      "firing": "firing",
+      "alert": "alerts"
+    },
+    "connectionError": "Connection failed",
+    "metaVersion": "Version",
+    "metaStats": "Stats",
+    "metaUpdatedAt": "Updated"
   },
   "openclaw": {
     "name": "OpenClaw",
@@ -911,4 +917,4 @@
     "noData": "--",
     "comingSoon": "Integration pending"
   }
-}
+}

apps/web/messages/zh-TW.json

@@ -149,8 +149,14 @@
     "monitoringStatus": {
       "up": "正常",
       "down": "離線",
-      "unknown": "未知"
-    }
+      "unknown": "未知",
+      "firing": "觸發",
+      "alert": "告警"
+    },
+    "connectionError": "無法連線",
+    "metaVersion": "版本",
+    "metaStats": "統計",
+    "metaUpdatedAt": "更新"
   },
   "openclaw": {
     "name": "OpenClaw",
@@ -912,4 +918,4 @@
     "noData": "--",
     "comingSoon": "資料尚未整合"
   }
-}
+}

apps/web/src/app/[locale]/page.tsx

@@ -109,6 +109,8 @@ const TOOL_EMOJI: Record<string, string> = {
 }
 
 function MonitoringTools() {
+  const tDash = useTranslations('dashboard')
+  const tCommon = useTranslations('common')
   const [tools, setTools] = useState<MonitoringTool[]>([])
   const [loading, setLoading] = useState(true)
 
@@ -125,10 +127,10 @@ function MonitoringTools() {
   }, [])
 
   if (loading) return (
-    <div style={{ padding: '12px 14px', fontSize: 12, color: '#87867f' }}>載入中...</div>
+    <div style={{ padding: '12px 14px', fontSize: 12, color: '#87867f' }}>{tCommon('loading')}</div>
   )
   if (tools.length === 0) return (
-    <div style={{ padding: '12px 14px', fontSize: 12, color: '#cc2200' }}>無法連線</div>
+    <div style={{ padding: '12px 14px', fontSize: 12, color: '#cc2200' }}>{tDash('connectionError')}</div>
   )
 
   return (
@@ -137,7 +139,7 @@ function MonitoringTools() {
         const isUp = tool.status === 'up'
         const hasFiring = (tool.firing_count ?? 0) > 0
         const statusColor = isUp ? (hasFiring ? '#F59E0B' : '#22C55E') : '#cc2200'
-        const statusText  = isUp ? (hasFiring ? `${tool.firing_count} 觸發` : '正常') : '離線'
+        const statusText  = isUp ? (hasFiring ? `${tool.firing_count} ${tDash('monitoringStatus.firing')}` : tDash('monitoringStatus.up')) : tDash('monitoringStatus.down')
         const accentColor = TOOL_ACCENT_COLOR[tool.name] ?? '#b0ad9f'
         const emoji = TOOL_EMOJI[tool.name] ?? '🔧'
         const link = TOOL_LINKS[tool.name] ?? '#'
@@ -218,18 +220,18 @@ function MonitoringTools() {
             }}>
               {tool.version && (
                 <div style={{ display: 'flex', alignItems: 'center', gap: 4, paddingRight: 14, fontSize: 10 }}>
-                  <span style={{ color: '#b0ad9f', whiteSpace: 'nowrap' }}>版本</span>
+                  <span style={{ color: '#b0ad9f', whiteSpace: 'nowrap' }}>{tDash('metaVersion')}</span>
                   <span style={{ color: '#141413', fontWeight: 600, whiteSpace: 'nowrap' }}>v{tool.version}</span>
                 </div>
               )}
               {tool.stats && (
                 <div style={{ display: 'flex', alignItems: 'center', gap: 4, paddingRight: 14, fontSize: 10 }}>
-                  <span style={{ color: '#b0ad9f', whiteSpace: 'nowrap' }}>統計</span>
+                  <span style={{ color: '#b0ad9f', whiteSpace: 'nowrap' }}>{tDash('metaStats')}</span>
                   <span style={{ color: '#141413', fontWeight: 600, whiteSpace: 'nowrap' }}>{tool.stats}</span>
                 </div>
               )}
               <div style={{ marginLeft: 'auto', display: 'flex', alignItems: 'center', gap: 4, fontSize: 10 }}>
-                <span style={{ color: '#b0ad9f', whiteSpace: 'nowrap' }}>更新</span>
+                <span style={{ color: '#b0ad9f', whiteSpace: 'nowrap' }}>{tDash('metaUpdatedAt')}</span>
                 <span style={{ color: '#141413', fontWeight: 600, whiteSpace: 'nowrap' }}>{timeStr}</span>
               </div>
             </div>
@@ -386,16 +388,29 @@ export default function Home({ params }: { params: { locale: string } }) {
     return Math.round((resolved / incidents.length) * 100)
   })()
 
-  // MTTR 均值
-  const mttrAvg = (() => {
-    if (!incidents?.length) return '--'
+  // MTTR 均值 + 趨勢（前半 vs 後半比較）
+  const { mttrAvg, mttrTrend } = (() => {
+    if (!incidents?.length) return { mttrAvg: '--', mttrTrend: undefined }
     const resolved = incidents.filter(i => i.updated_at && (i.status === 'resolved' || i.status === 'closed'))
-    if (!resolved.length) return '--'
-    const avgMs = resolved.reduce((sum, i) =>
-      sum + (new Date(i.updated_at).getTime() - new Date(i.created_at).getTime()), 0
-    ) / resolved.length
+    if (!resolved.length) return { mttrAvg: '--', mttrTrend: undefined }
+    const durs = resolved.map(i => new Date(i.updated_at).getTime() - new Date(i.created_at).getTime())
+    const avgMs = durs.reduce((a, b) => a + b, 0) / durs.length
     const mins = Math.round(avgMs / 60000)
-    return mins < 60 ? `${mins}m` : `${(mins / 60).toFixed(1)}h`
+    const avgStr = mins < 60 ? `${mins}m` : `${(mins / 60).toFixed(1)}h`
+    // 趨勢：比較前半與後半（需至少4筆）
+    let trend: { text: string; color: string } | undefined
+    if (durs.length >= 4) {
+      const half = Math.floor(durs.length / 2)
+      const older = durs.slice(0, half).reduce((a, b) => a + b, 0) / half
+      const newer = durs.slice(half).reduce((a, b) => a + b, 0) / (durs.length - half)
+      const diffMins = Math.round((newer - older) / 60000)
+      if (Math.abs(diffMins) >= 1) {
+        trend = diffMins < 0
+          ? { text: `↓${Math.abs(diffMins)}m`, color: '#22C55E' }
+          : { text: `↑${diffMins}m`, color: '#d97757' }
+      }
+    }
+    return { mttrAvg: avgStr, mttrTrend: trend }
   })()
 
   // (pulseMetrics reserved for future sparklines)
@@ -483,7 +498,7 @@ export default function Home({ params }: { params: { locale: string } }) {
     {
       label: tDashboard('mttrAvg'),
       value: mttrAvg,
-      trend: mttrAvg !== '--' ? { text: '↓2m', color: '#22C55E' } : undefined,
+      trend: mttrTrend,
       extra: (
         <svg width="60" height="12" viewBox="0 0 60 12" fill="none">
           <polyline points="0,2 10,3 20,2 30,5 40,4 50,7 60,9" stroke="#22C55E" strokeWidth="1.5" fill="none" strokeLinecap="round" strokeLinejoin="round"/>