diff --git a/.gitea/workflows/cd.yaml b/.gitea/workflows/cd.yaml
index 53d05707..28ba5f11 100644
--- a/.gitea/workflows/cd.yaml
+++ b/.gitea/workflows/cd.yaml
@@ -30,7 +30,8 @@ env:
 
 jobs:
   build-and-deploy:
-    runs-on: ubuntu-latest
+    # 2026-04-02 Claude Code: 修正為 self-hosted (ADR-039 鐵律 + feedback_github_billing.md)
+    runs-on: self-hosted
     steps:
       - uses: actions/checkout@v4
 
@@ -151,16 +152,16 @@ jobs:
 
           # 注入 Telegram Secrets (ADR-035 鐵律)
           sudo kubectl patch secret awoooi-secrets -n awoooi-prod --type='json' -p='[
-            {"op":"replace","path":"/data/OPENCLAW_TG_BOT_TOKEN","value":"'$(echo -n "${TG_BOT_TOKEN}" | base64 -w 0)'"},
-            {"op":"replace","path":"/data/OPENCLAW_TG_CHAT_ID","value":"'$(echo -n "${TG_CHAT_ID}" | base64 -w 0)'"}
-          ]' || echo "⚠️ Telegram Secrets patch 跳過"
+            {"op":"add","path":"/data/OPENCLAW_TG_BOT_TOKEN","value":"'$(echo -n "${TG_BOT_TOKEN}" | base64 -w 0)'"},
+            {"op":"add","path":"/data/OPENCLAW_TG_CHAT_ID","value":"'$(echo -n "${TG_CHAT_ID}" | base64 -w 0)'"}
+          ]' || { echo "❌ Telegram Secrets patch 失敗 — ADR-035 鐵律"; exit 1; }
 
           # 2026-03-31 ogt: 注入 AI API Keys (修復 NVIDIA/Gemini mock_fallback)
           # 2026-04-01 Claude Code: base64 -w 0 防止長 key 換行破壞 JSON
           # NVIDIA NIM (免費 tier)
           if [ -n "${NVIDIA_API_KEY}" ] && [ "${NVIDIA_API_KEY}" != "" ]; then
             sudo kubectl patch secret awoooi-secrets -n awoooi-prod --type='json' -p='[
-              {"op":"replace","path":"/data/NVIDIA_API_KEY","value":"'$(echo -n "${NVIDIA_API_KEY}" | base64 -w 0)'"}
+              {"op":"add","path":"/data/NVIDIA_API_KEY","value":"'$(echo -n "${NVIDIA_API_KEY}" | base64 -w 0)'"}
             ]' && echo "✅ NVIDIA_API_KEY 已注入" || echo "⚠️ NVIDIA_API_KEY patch 失敗"
           else
             echo "⚠️ NVIDIA_API_KEY 未設定，跳過"
@@ -169,7 +170,7 @@ jobs:
           # Gemini (備援)
           if [ -n "${GEMINI_API_KEY}" ] && [ "${GEMINI_API_KEY}" != "" ]; then
             sudo kubectl patch secret awoooi-secrets -n awoooi-prod --type='json' -p='[
-              {"op":"replace","path":"/data/GEMINI_API_KEY","value":"'$(echo -n "${GEMINI_API_KEY}" | base64 -w 0)'"}
+              {"op":"add","path":"/data/GEMINI_API_KEY","value":"'$(echo -n "${GEMINI_API_KEY}" | base64 -w 0)'"}
             ]' && echo "✅ GEMINI_API_KEY 已注入" || echo "⚠️ GEMINI_API_KEY patch 失敗"
           else
             echo "⚠️ GEMINI_API_KEY 未設定，跳過"
@@ -178,8 +179,8 @@ jobs:
           # 2026-04-01 Claude Code: Langfuse LLMOps keys (補齊 CD 注入，之前只有手動設定)
           if [ -n "${LANGFUSE_PUBLIC_KEY}" ] && [ -n "${LANGFUSE_SECRET_KEY}" ]; then
             sudo kubectl patch secret awoooi-secrets -n awoooi-prod --type='json' -p='[
-              {"op":"replace","path":"/data/LANGFUSE_PUBLIC_KEY","value":"'$(echo -n "${LANGFUSE_PUBLIC_KEY}" | base64 -w 0)'"},
-              {"op":"replace","path":"/data/LANGFUSE_SECRET_KEY","value":"'$(echo -n "${LANGFUSE_SECRET_KEY}" | base64 -w 0)'"}
+              {"op":"add","path":"/data/LANGFUSE_PUBLIC_KEY","value":"'$(echo -n "${LANGFUSE_PUBLIC_KEY}" | base64 -w 0)'"},
+              {"op":"add","path":"/data/LANGFUSE_SECRET_KEY","value":"'$(echo -n "${LANGFUSE_SECRET_KEY}" | base64 -w 0)'"}
             ]' && echo "✅ LANGFUSE keys 已注入" || echo "⚠️ LANGFUSE keys patch 失敗"
           else
             echo "⚠️ LANGFUSE_PUBLIC_KEY/SECRET_KEY 未設定，跳過 (現有 K8s secret 值維持不變)"
diff --git a/apps/api/src/api/v1/ai.py b/apps/api/src/api/v1/ai.py
index 9e49f551..f353f0eb 100644
--- a/apps/api/src/api/v1/ai.py
+++ b/apps/api/src/api/v1/ai.py
@@ -40,6 +40,8 @@ logger = get_logger("awoooi.ai")
 
 # =============================================================================
 # Helper Functions
+# TODO(R4): 移入 approval_service — Router 層不應包含業務邏輯 (feedback_lewooogo_modular_enforcement)
+# 2026-04-02 Claude Code: 架構審查標記，待 Phase R4 Router 瘦身時處理
 # =============================================================================
 
 def _map_risk_level(ai_risk: AIRiskLevel) -> RiskLevel:
diff --git a/apps/api/src/services/langfuse_client.py b/apps/api/src/services/langfuse_client.py
index 63946aca..2499ede5 100644
--- a/apps/api/src/services/langfuse_client.py
+++ b/apps/api/src/services/langfuse_client.py
@@ -123,27 +123,14 @@ class LangfuseTraceContext:
                         self._otel_trace_id
                     )
 
-                # Langfuse v4.x API: 使用 create_trace_id() 取代舊的 trace()
-                # 舊 API (v2.x): self._client.trace(name=..., metadata=...)
-                # 新 API (v4.x): 透過 OTEL 整合或裝飾器
-                if hasattr(self._client, "trace"):
-                    # Legacy API (v2.x)
-                    self.trace = self._client.trace(
-                        name=self.name,
-                        metadata=enriched_metadata,
-                    )
-                    if self.trace:
-                        self._langfuse_trace_id = self.trace.id
-                else:
-                    # Langfuse v4.x - 使用 create_trace_id() 並記錄
-                    # 完整追蹤依賴 OTEL 整合
-                    self._langfuse_trace_id = self._client.create_trace_id()
-                    logger.debug(
-                        "langfuse_v4_trace_created",
-                        trace_id=self._langfuse_trace_id,
-                        name=self.name,
-                        note="Full tracing via OTEL integration",
-                    )
+                # 2026-04-02 Claude Code: 移除 v4.x 死碼分支 — SDK 已鎖定 <3.0.0
+                # v2.x API: client.trace() 建立追蹤
+                self.trace = self._client.trace(
+                    name=self.name,
+                    metadata=enriched_metadata,
+                )
+                if self.trace:
+                    self._langfuse_trace_id = self.trace.id
 
                 logger.debug(
                     "langfuse_trace_started",
diff --git a/apps/web/src/app/[locale]/alerts/page.tsx b/apps/web/src/app/[locale]/alerts/page.tsx
index 2f0073fe..7909dcb0 100644
--- a/apps/web/src/app/[locale]/alerts/page.tsx
+++ b/apps/web/src/app/[locale]/alerts/page.tsx
@@ -75,6 +75,7 @@ function StatPill({ label, value, highlight }: { label: string; value: number; h
 
 export default function AlertsPage({ params }: { params: { locale: string } }) {
   const t = useTranslations()
+  const tAlerts = useTranslations('alerts')
 
   const { incidents, isLoading, error, refresh } = useIncidents({
     pollInterval: 15000,
@@ -120,10 +121,10 @@ export default function AlertsPage({ params }: { params: { locale: string } }) {
 
       {/* Severity Stats */}
       <div className="grid grid-cols-4 gap-3 mb-6">
-        <StatPill label="P0 CRITICAL" value={p0Count} highlight />
-        <StatPill label="P1 HIGH"     value={p1Count} />
-        <StatPill label="P2 MEDIUM"   value={p2Count} />
-        <StatPill label="P3 LOW"      value={p3Count} />
+        <StatPill label={t('incident.severity.P0')} value={p0Count} highlight />
+        <StatPill label={t('incident.severity.P1')} value={p1Count} />
+        <StatPill label={t('incident.severity.P2')} value={p2Count} />
+        <StatPill label={t('incident.severity.P3')} value={p3Count} />
       </div>
 
       {/* Error */}
@@ -163,7 +164,7 @@ export default function AlertsPage({ params }: { params: { locale: string } }) {
                 <div className="flex items-center gap-3 mb-3">
                   <SeverityBadge severity={sev} />
                   <span className="text-[11px] font-mono text-nothing-gray-400">
-                    {group.length} {group.length === 1 ? 'incident' : 'incidents'}
+                    {tAlerts('incidentCount', { count: group.length })}
                   </span>
                   <div className="flex-1 h-px bg-nothing-gray-200" />
                 </div>
diff --git a/apps/web/src/app/[locale]/auto-repair/page.tsx b/apps/web/src/app/[locale]/auto-repair/page.tsx
index 32a6982c..80c21141 100644
--- a/apps/web/src/app/[locale]/auto-repair/page.tsx
+++ b/apps/web/src/app/[locale]/auto-repair/page.tsx
@@ -10,6 +10,7 @@
  *   GET /api/v1/incidents (活躍 incident 清單)
  *
  * @updated 2026-04-01 ogt - 從佔位符升級為完整頁面
+ * @updated 2026-04-02 Claude Code - i18n 合規修復 (零硬編碼)
  */
 
 import { useState, useEffect, useCallback, useRef } from 'react'
@@ -101,6 +102,7 @@ function StatCard({
 function IncidentEvalRow({
   incidentId, severity,
 }: { incidentId: string; severity: string }) {
+  const t = useTranslations('autoRepair')
   const [eval_, setEval] = useState<EvaluateResponse | null>(null)
   const [loading, setLoading] = useState(false)
   const [executing, setExecuting] = useState(false)
@@ -155,8 +157,8 @@ function IncidentEvalRow({
         {loading && <RefreshCw className="w-4 h-4 animate-spin text-nothing-gray-400" />}
         {!loading && eval_ && (
           eval_.can_auto_repair
-            ? <span className="flex items-center gap-1 text-[11px] font-mono text-status-healthy"><CheckCircle2 className="w-3.5 h-3.5" />可自動修復</span>
-            : <span className="flex items-center gap-1 text-[11px] font-mono text-nothing-gray-400"><XCircle className="w-3.5 h-3.5" />不符合條件</span>
+            ? <span className="flex items-center gap-1 text-[11px] font-mono text-status-healthy"><CheckCircle2 className="w-3.5 h-3.5" />{t('canAutoRepair')}</span>
+            : <span className="flex items-center gap-1 text-[11px] font-mono text-nothing-gray-400"><XCircle className="w-3.5 h-3.5" />{t('notEligibleShort')}</span>
         )}
         {expanded ? <ChevronUp className="w-4 h-4 text-nothing-gray-400" /> : <ChevronDown className="w-4 h-4 text-nothing-gray-400" />}
       </div>
@@ -170,7 +172,7 @@ function IncidentEvalRow({
               <p className="font-mono text-nothing-black mt-0.5">{eval_.playbook_name ?? '—'}</p>
             </div>
             <div>
-              <span className="text-[10px] font-mono text-nothing-gray-500 uppercase">風險等級</span>
+              <span className="text-[10px] font-mono text-nothing-gray-500 uppercase">{t('riskLevel')}</span>
               <p className="mt-0.5">
                 <span className={cn('px-2 py-0.5 rounded border text-[11px] font-mono font-bold', RISK_STYLE[eval_.risk_level] ?? RISK_STYLE.MEDIUM)}>
                   {eval_.risk_level}
@@ -179,20 +181,20 @@ function IncidentEvalRow({
             </div>
             {eval_.success_rate != null && (
               <div>
-                <span className="text-[10px] font-mono text-nothing-gray-500 uppercase">成功率</span>
+                <span className="text-[10px] font-mono text-nothing-gray-500 uppercase">{t('successRate')}</span>
                 <p className="font-mono text-status-healthy font-bold mt-0.5">{(eval_.success_rate * 100).toFixed(1)}%</p>
               </div>
             )}
             {eval_.total_executions != null && (
               <div>
-                <span className="text-[10px] font-mono text-nothing-gray-500 uppercase">執行次數</span>
+                <span className="text-[10px] font-mono text-nothing-gray-500 uppercase">{t('execCount')}</span>
                 <p className="font-mono text-nothing-black mt-0.5">{eval_.total_executions}</p>
               </div>
             )}
           </div>
 
           <div className="p-3 bg-nothing-gray-50 rounded-lg">
-            <span className="text-[10px] font-mono text-nothing-gray-500 uppercase">決策原因</span>
+            <span className="text-[10px] font-mono text-nothing-gray-500 uppercase">{t('decisionReason')}</span>
             <p className="text-sm font-mono text-nothing-gray-700 mt-1">{eval_.reason}</p>
           </div>
 
@@ -207,7 +209,7 @@ function IncidentEvalRow({
                   ? <CheckCircle2 className="w-4 h-4 text-status-healthy" />
                   : <XCircle className="w-4 h-4 text-status-critical" />}
                 <span className={cn('text-sm font-mono font-bold', result.success ? 'text-status-healthy' : 'text-status-critical')}>
-                  {result.success ? `執行成功 (${result.execution_time_ms}ms)` : `執行失敗: ${result.error}`}
+                  {result.success ? t('execSuccess', { ms: result.execution_time_ms }) : t('execFailed', { error: result.error })}
                 </span>
               </div>
               {result.executed_steps.length > 0 && (
@@ -236,8 +238,8 @@ function IncidentEvalRow({
               )}
             >
               {executing
-                ? <><RefreshCw className="w-4 h-4 animate-spin" />執行中...</>
-                : <><Play className="w-4 h-4" />執行修復</>}
+                ? <><RefreshCw className="w-4 h-4 animate-spin" />{t('executing')}</>
+                : <><Play className="w-4 h-4" />{t('execute')}</>}
             </button>
           )}
         </div>
@@ -251,7 +253,9 @@ function IncidentEvalRow({
 // =============================================================================
 
 export default function AutoRepairPage({ params }: { params: { locale: string } }) {
-  const t = useTranslations()
+  const t = useTranslations('autoRepair')
+  const tNav = useTranslations('nav')
+  const tCommon = useTranslations('common')
 
   const [stats, setStats] = useState<AutoRepairStats | null>(null)
   const [statsLoading, setStatsLoading] = useState(true)
@@ -263,7 +267,6 @@ export default function AutoRepairPage({ params }: { params: { locale: string }
     enablePolling: true,
   })
 
-  // P0/P1/P2 只有這些才評估自動修復（嚴重度限制）
   const eligibleIncidents = (incidents ?? []).filter(i =>
     i.severity === 'P1' || i.severity === 'P2'
   )
@@ -300,10 +303,10 @@ export default function AutoRepairPage({ params }: { params: { locale: string }
         <div>
           <h2 className="font-heading text-2xl font-bold text-nothing-black flex items-center gap-2">
             <Wrench className="w-6 h-6" />
-            {t('nav.autoRepair')}
+            {tNav('autoRepair')}
           </h2>
           <p className="mt-1 text-sm text-nothing-gray-500 font-mono">
-            高品質 Playbook 自動執行 · 風險 ≤ MEDIUM · 成功率 ≥ 95%
+            {t('subtitle')}
           </p>
         </div>
         <button
@@ -317,7 +320,7 @@ export default function AutoRepairPage({ params }: { params: { locale: string }
           )}
         >
           <RefreshCw className={cn('w-3.5 h-3.5', statsLoading && 'animate-spin')} />
-          {t('common.refresh')}
+          {tCommon('refresh')}
         </button>
       </div>
 
@@ -333,23 +336,23 @@ export default function AutoRepairPage({ params }: { params: { locale: string }
       {stats && (
         <div className="grid grid-cols-2 md:grid-cols-4 gap-3 mb-6">
           <StatCard
-            label="已批准 Playbooks"
+            label={t('approvedPlaybooks')}
             value={stats.approved_playbooks}
           />
           <StatCard
-            label="高品質 Playbooks"
+            label={t('highQualityPlaybooks')}
             value={stats.high_quality_playbooks}
-            sub="成功率 ≥ 95% · 執行 ≥ 10 次"
+            sub={t('highQualitySub')}
             highlight
           />
           <StatCard
-            label="總執行次數"
+            label={t('totalExecutions')}
             value={stats.total_executions}
           />
           <StatCard
-            label="整體成功率"
+            label={t('overallSuccessRate')}
             value={`${(stats.overall_success_rate * 100).toFixed(1)}%`}
-            sub={stats.auto_repair_eligible ? '✓ 可啟用自動修復' : '尚無高品質 Playbook'}
+            sub={stats.auto_repair_eligible ? t('eligible') : t('notEligible')}
           />
         </div>
       )}
@@ -367,12 +370,12 @@ export default function AutoRepairPage({ params }: { params: { locale: string }
             : <ShieldAlert className="w-5 h-5 text-nothing-gray-400" />}
           <div>
             <p className={cn('text-sm font-mono font-semibold', stats.auto_repair_eligible ? 'text-status-healthy' : 'text-nothing-gray-600')}>
-              {stats.auto_repair_eligible ? '自動修復已就緒' : '自動修復未就緒'}
+              {stats.auto_repair_eligible ? t('ready') : t('notReady')}
             </p>
             <p className="text-xs font-mono text-nothing-gray-400">
               {stats.auto_repair_eligible
-                ? `${stats.high_quality_playbooks} 個高品質 Playbook 可用`
-                : '需要至少 1 個高品質 Playbook（成功率 ≥ 95%、執行 ≥ 10 次）'}
+                ? t('readyDesc', { count: stats.high_quality_playbooks })
+                : t('notReadyDesc')}
             </p>
           </div>
         </div>
@@ -381,7 +384,7 @@ export default function AutoRepairPage({ params }: { params: { locale: string }
       {/* Incident evaluation list */}
       <div>
         <h3 className="text-[11px] font-mono text-nothing-gray-500 uppercase tracking-widest mb-3">
-          活躍 Incident 評估（P1/P2）
+          {t('incidentEval')}
         </h3>
 
         {incidentsLoading && (
@@ -393,7 +396,7 @@ export default function AutoRepairPage({ params }: { params: { locale: string }
         {!incidentsLoading && eligibleIncidents.length === 0 && (
           <div className="text-center py-10 border border-dashed border-nothing-gray-200 rounded-lg">
             <CheckCircle2 className="w-8 h-8 text-status-healthy mx-auto mb-2" />
-            <p className="font-mono text-sm text-nothing-gray-500">目前無符合自動修復條件的 Incident</p>
+            <p className="font-mono text-sm text-nothing-gray-500">{t('noEligible')}</p>
           </div>
         )}
 
diff --git a/apps/web/src/app/[locale]/settings/page.tsx b/apps/web/src/app/[locale]/settings/page.tsx
index 75248588..2e7eab49 100644
--- a/apps/web/src/app/[locale]/settings/page.tsx
+++ b/apps/web/src/app/[locale]/settings/page.tsx
@@ -7,9 +7,11 @@
  * 設定值持久化至 localStorage
  *
  * @updated 2026-04-01 ogt - 從佔位符升級為完整頁面
+ * @updated 2026-04-02 Claude Code - i18n 合規修復 (零硬編碼)
  */
 
 import { useState, useEffect } from 'react'
+import { useTranslations } from 'next-intl'
 import { AppLayout } from '@/components/layout'
 import { usePathname } from 'next/navigation'
 import { cn } from '@/lib/utils'
@@ -25,17 +27,10 @@ import {
 interface SettingSection {
   id: string
   icon: typeof Settings
-  title: string
-  description: string
+  titleKey: string
+  descKey: string
 }
 
-const SECTIONS: SettingSection[] = [
-  { id: 'appearance', icon: Monitor, title: '外觀',     description: '主題、字體、密度' },
-  { id: 'language',   icon: Globe,   title: '語言',     description: '介面語言設定' },
-  { id: 'notify',     icon: Bell,    title: '通知',     description: 'Telegram / 瀏覽器通知偏好' },
-  { id: 'system',     icon: Settings, title: '系統資訊', description: '版本與 API 端點' },
-]
-
 // =============================================================================
 // Setting Row
 // =============================================================================
@@ -76,10 +71,19 @@ function Toggle({ value, onChange }: { value: boolean; onChange: (v: boolean) =>
 // =============================================================================
 
 export default function SettingsPage({ params }: { params: { locale: string } }) {
+  const t = useTranslations('settings')
+  const tNav = useTranslations('nav')
   const pathname = usePathname()
   const [activeSection, setActiveSection] = useState('appearance')
   const [saved, setSaved] = useState(false)
 
+  const SECTIONS: SettingSection[] = [
+    { id: 'appearance', icon: Monitor,  titleKey: 'appearance', descKey: 'appearanceDesc' },
+    { id: 'language',   icon: Globe,    titleKey: 'language',   descKey: 'languageDesc' },
+    { id: 'notify',     icon: Bell,     titleKey: 'notify',     descKey: 'notifyDesc' },
+    { id: 'system',     icon: Settings, titleKey: 'system',     descKey: 'systemDesc' },
+  ]
+
   // Settings state — loaded from / persisted to localStorage
   const [notifyBrowser, setNotifyBrowser] = useState(false)
   const [notifyP0Only, setNotifyP0Only]   = useState(false)
@@ -108,7 +112,7 @@ export default function SettingsPage({ params }: { params: { locale: string } })
     <AppLayout locale={params.locale}>
       <div className="flex items-center gap-2 mb-6">
         <Settings className="w-6 h-6 text-nothing-black" />
-        <h2 className="font-heading text-2xl font-bold text-nothing-black">系統設定</h2>
+        <h2 className="font-heading text-2xl font-bold text-nothing-black">{t('title')}</h2>
       </div>
 
       <div className="flex gap-6">
@@ -127,7 +131,7 @@ export default function SettingsPage({ params }: { params: { locale: string } })
                 )}
               >
                 <section.icon className="w-4 h-4 flex-shrink-0" />
-                <span className="text-sm font-mono">{section.title}</span>
+                <span className="text-sm font-mono">{t(section.titleKey)}</span>
                 {activeSection !== section.id && <ChevronRight className="w-3 h-3 ml-auto text-nothing-gray-400" />}
               </button>
             ))}
@@ -140,14 +144,14 @@ export default function SettingsPage({ params }: { params: { locale: string } })
           {/* Appearance */}
           {activeSection === 'appearance' && (
             <div>
-              <h3 className="font-mono text-sm font-bold text-nothing-black mb-4 uppercase tracking-wider">外觀設定</h3>
-              <SettingRow label="緊湊模式" description="減少各元件間距，顯示更多資訊">
+              <h3 className="font-mono text-sm font-bold text-nothing-black mb-4 uppercase tracking-wider">{t('appearanceSettings')}</h3>
+              <SettingRow label={t('compactMode')} description={t('compactModeDesc')}>
                 <Toggle value={compactMode} onChange={setCompactMode} />
               </SettingRow>
-              <SettingRow label="設計系統" description="Nothing.tech 純白工業風（固定）">
+              <SettingRow label={t('designSystem')} description={t('designSystemValue')}>
                 <span className="text-xs font-mono text-nothing-gray-400 bg-nothing-gray-100 px-2 py-1 rounded">v7.0</span>
               </SettingRow>
-              <SettingRow label="主題色" description="OpenClaw Blue + 橘紅 Accent（固定）">
+              <SettingRow label={t('themeColor')} description={t('themeColorValue')}>
                 <div className="flex gap-1.5">
                   <div className="w-5 h-5 rounded-full bg-[#4A90D9] border-2 border-white shadow" />
                   <div className="w-5 h-5 rounded-full bg-[#d97757] border-2 border-white shadow" />
@@ -159,10 +163,10 @@ export default function SettingsPage({ params }: { params: { locale: string } })
           {/* Language */}
           {activeSection === 'language' && (
             <div>
-              <h3 className="font-mono text-sm font-bold text-nothing-black mb-4 uppercase tracking-wider">語言設定</h3>
+              <h3 className="font-mono text-sm font-bold text-nothing-black mb-4 uppercase tracking-wider">{t('languageSettings')}</h3>
               {[
-                { code: 'zh-TW', label: '繁體中文', sub: 'Traditional Chinese' },
-                { code: 'en',    label: 'English',  sub: 'English (US)' },
+                { code: 'zh-TW', labelKey: 'zhTW', subKey: 'zhTWSub' },
+                { code: 'en',    labelKey: 'en',   subKey: 'enSub' },
               ].map(lang => (
                 <div
                   key={lang.code}
@@ -175,8 +179,8 @@ export default function SettingsPage({ params }: { params: { locale: string } })
                   )}
                 >
                   <div>
-                    <p className="text-sm font-medium text-nothing-black">{lang.label}</p>
-                    <p className="text-xs font-mono text-nothing-gray-400">{lang.sub}</p>
+                    <p className="text-sm font-medium text-nothing-black">{t(lang.labelKey)}</p>
+                    <p className="text-xs font-mono text-nothing-gray-400">{t(lang.subKey)}</p>
                   </div>
                   {params.locale === lang.code && <CheckCircle2 className="w-5 h-5 text-claw-blue" />}
                 </div>
@@ -187,15 +191,15 @@ export default function SettingsPage({ params }: { params: { locale: string } })
           {/* Notifications */}
           {activeSection === 'notify' && (
             <div>
-              <h3 className="font-mono text-sm font-bold text-nothing-black mb-4 uppercase tracking-wider">通知設定</h3>
-              <SettingRow label="瀏覽器推播通知" description="新 Incident 時顯示系統通知">
+              <h3 className="font-mono text-sm font-bold text-nothing-black mb-4 uppercase tracking-wider">{t('notifySettings')}</h3>
+              <SettingRow label={t('browserNotify')} description={t('browserNotifyDesc')}>
                 <Toggle value={notifyBrowser} onChange={setNotifyBrowser} />
               </SettingRow>
-              <SettingRow label="僅 P0 CRITICAL 通知" description="過濾低嚴重度告警，減少噪音">
+              <SettingRow label={t('p0Only')} description={t('p0OnlyDesc')}>
                 <Toggle value={notifyP0Only} onChange={setNotifyP0Only} />
               </SettingRow>
-              <SettingRow label="Telegram 通知" description="由 OpenClaw Bot 推送（需後端設定）">
-                <span className="text-xs font-mono text-nothing-gray-400 bg-nothing-gray-100 px-2 py-1 rounded">後端設定</span>
+              <SettingRow label={t('telegramNotify')} description={t('telegramNotifyDesc')}>
+                <span className="text-xs font-mono text-nothing-gray-400 bg-nothing-gray-100 px-2 py-1 rounded">{t('backendConfig')}</span>
               </SettingRow>
             </div>
           )}
@@ -203,14 +207,14 @@ export default function SettingsPage({ params }: { params: { locale: string } })
           {/* System */}
           {activeSection === 'system' && (
             <div>
-              <h3 className="font-mono text-sm font-bold text-nothing-black mb-4 uppercase tracking-wider">系統資訊</h3>
+              <h3 className="font-mono text-sm font-bold text-nothing-black mb-4 uppercase tracking-wider">{t('systemSettings')}</h3>
               {[
-                { label: '前端版本',    value: 'v1.0.0' },
-                { label: 'API 端點',   value: process.env.NEXT_PUBLIC_API_URL ?? '(未設定)' },
-                { label: '設計系統',   value: 'Nothing.tech v7.0' },
-                { label: 'Phase',      value: 'Phase 23 (2026-04-01)' },
+                { labelKey: 'frontendVersion', value: 'v1.0.0' },
+                { labelKey: 'apiEndpoint',     value: process.env.NEXT_PUBLIC_API_URL ?? t('notConfigured') },
+                { labelKey: 'designSystem',    value: 'Nothing.tech v7.0' },
+                { labelKey: 'phase',           value: 'Phase 23 (2026-04-01)' },
               ].map(item => (
-                <SettingRow key={item.label} label={item.label}>
+                <SettingRow key={item.labelKey} label={t(item.labelKey)}>
                   <span className="text-sm font-mono text-nothing-gray-600">{item.value}</span>
                 </SettingRow>
               ))}
@@ -224,12 +228,12 @@ export default function SettingsPage({ params }: { params: { locale: string } })
                 onClick={saveSettings}
                 className="px-5 py-2.5 rounded-lg bg-nothing-black text-white font-mono text-sm font-semibold hover:bg-nothing-black/90 transition-colors"
               >
-                儲存設定
+                {t('save')}
               </button>
               {saved && (
                 <span className="flex items-center gap-1.5 text-sm font-mono text-status-healthy">
                   <CheckCircle2 className="w-4 h-4" />
-                  已儲存
+                  {t('saved')}
                 </span>
               )}
             </div>
diff --git a/apps/web/src/components/ai/openclaw-panel.tsx b/apps/web/src/components/ai/openclaw-panel.tsx
index 1ab4ede0..f3490536 100644
--- a/apps/web/src/components/ai/openclaw-panel.tsx
+++ b/apps/web/src/components/ai/openclaw-panel.tsx
@@ -120,13 +120,7 @@ function NemoClaw({ isActive, isPulsing }: { isActive: boolean; isPulsing: boole
 // Status Messages (Dot Matrix Style)
 // =============================================================================
 
-const STATUS_MESSAGES: Record<OpenClawStatus, string> = {
-  patrolling: '[AGENT] patrolling...',
-  intercepting: '[SYS] Intercepting anomaly...',
-  analyzing: '[SYS] Analyzing blast radius...',
-  generating: '[SYS] Generating proposed action...',
-  complete: '[SYS] Analysis complete',
-}
+// 2026-04-02 Claude Code: STATUS_MESSAGES 已移除，改用 i18n 鍵值 openclawPanel.*
 
 
 // =============================================================================
@@ -165,13 +159,14 @@ export function OpenClawPanel({
   onAnalysisComplete,
   className,
 }: OpenClawPanelProps) {
-  const _t = useTranslations('ai')
+  const tPanel = useTranslations('openclawPanel')
+  const tBrand = useTranslations('brand')
   // Phase 8.0 #16: 移除 cursorVisible state，改用 CSS animate-pulse
 
   const isActive = status !== 'patrolling'
   const isPulsing = status === 'intercepting' || status === 'analyzing'
 
-  const statusMessage = STATUS_MESSAGES[status]
+  const statusMessage = tPanel(status)
   const displayText = useTypewriter(statusMessage, 40)
 
   // Notify when complete
@@ -212,7 +207,7 @@ export function OpenClawPanel({
             AWOOOI v1.0.0
           </span>
           <span className="font-dot-matrix text-xs text-nothing-gray-400">
-            | Production
+            | {tBrand('environment')}
           </span>
           {isActive && (
             <span className="w-2 h-2 rounded-full bg-claw-blue animate-ping" />
@@ -237,7 +232,7 @@ export function OpenClawPanel({
             NemoClaw
           </div>
           <div style={{ fontSize: 12, color: '#87867f', marginBottom: 6 }}>
-            {STATUS_MESSAGES[status]}
+            {tPanel(status)}
           </div>
           <span style={{
             fontSize: 11, padding: '2px 8px',
diff --git a/apps/web/src/components/layout/sidebar.tsx b/apps/web/src/components/layout/sidebar.tsx
index e81c4793..4a7a9bca 100644
--- a/apps/web/src/components/layout/sidebar.tsx
+++ b/apps/web/src/components/layout/sidebar.tsx
@@ -69,8 +69,8 @@ type NavSection = {
 
 const NAV_SECTIONS: NavSection[] = [
   {
-    sectionKey: 'ai-core',
-    sectionLabel: 'AI 核心',
+    sectionKey: 'aiCore',
+    sectionLabel: '',
     items: [
       { id: 'ai-center',      href: '/',               labelKey: 'dashboard',     Icon: LayoutDashboard },
       { id: 'authorizations', href: '/authorizations',  labelKey: 'approvals',     Icon: ShieldCheck, badge: true },
@@ -79,7 +79,7 @@ const NAV_SECTIONS: NavSection[] = [
   },
   {
     sectionKey: 'monitoring',
-    sectionLabel: '監控與安全',
+    sectionLabel: '',
     items: [
       { id: 'monitoring',  href: '/monitoring',  labelKey: 'monitoring',  Icon: Monitor },
       { id: 'apm',         href: '/apm',         labelKey: 'apm',         Icon: Activity },
@@ -91,7 +91,7 @@ const NAV_SECTIONS: NavSection[] = [
   },
   {
     sectionKey: 'ops',
-    sectionLabel: '運維管理',
+    sectionLabel: '',
     items: [
       { id: 'auto-repair',  href: '/auto-repair',  labelKey: 'autoRepair',  Icon: Wrench },
       { id: 'deployments',  href: '/deployments',  labelKey: 'deployments', Icon: Package },
@@ -103,7 +103,7 @@ const NAV_SECTIONS: NavSection[] = [
   },
   {
     sectionKey: 'knowledge',
-    sectionLabel: '知識與工具',
+    sectionLabel: '',
     items: [
       { id: 'knowledge-base', href: '/knowledge-base', labelKey: 'knowledge', Icon: BookOpen },
       { id: 'terminal',       href: '/terminal',       labelKey: 'terminal',  Icon: Terminal },
@@ -133,6 +133,8 @@ export function Sidebar({
 }: SidebarProps) {
   const t = useTranslations('nav')
   const tBrand = useTranslations('brand')
+  const tSection = useTranslations('navSection')
+  const tSidebar = useTranslations('sidebar')
   const pathname = usePathname()
 
   // Phase 8.0 #15: 改用 SSE 驅動的 pending count (移除 30s polling)
@@ -236,7 +238,7 @@ export function Sidebar({
                 padding: '8px 12px 3px',
                 fontFamily: 'monospace',
               }}>
-                {section.sectionLabel}
+                {tSection(section.sectionKey)}
               </div>
             )}
             {section.items.map(item => {
@@ -338,7 +340,7 @@ export function Sidebar({
           'hover:bg-neutral-50',
           'transition-all duration-150'
         )}
-        aria-label={collapsed ? 'Expand sidebar' : 'Collapse sidebar'}
+        aria-label={collapsed ? tSidebar('expand') : tSidebar('collapse')}
       >
         {collapsed ? (
           <ChevronRight className="w-3 h-3 text-neutral-400" />