refactor(frontend): enforcement/field-ops/patrol PageContainer/PageHeader 적용

- EnforcementHistory/EventList/EnforcementPlan: primary Button 액션
- EventList: Select 공통 컴포넌트로 등급 필터 치환
- AIAlert/ShipAgent/MobileService: PageContainer + PageHeader(demo)
- PatrolRoute/FleetOptimization: primary Button 액션 2개씩

Phase B-3 완료. 총 10개 파일.

frontend/src/features/enforcement/EnforcementHistory.tsx

@@ -1,6 +1,7 @@
 import { useEffect, useMemo } from 'react';
 import { useTranslation } from 'react-i18next';
 import { Badge } from '@shared/components/ui/badge';
+import { PageContainer, PageHeader } from '@shared/components/layout';
 import { DataTable, type DataColumn } from '@shared/components/common/DataTable';
 import { FileText, CheckCircle, XCircle, Loader2 } from 'lucide-react';
 import { useEnforcementStore } from '@stores/enforcementStore';
@@ -121,14 +122,13 @@ export function EnforcementHistory() {
   const DATA: Record[] = records as Record[];
 
   return (
-    <div className="p-5 space-y-4">
-      <div>
-        <h2 className="text-lg font-bold text-heading whitespace-nowrap flex items-center gap-2">
-          <FileText className="w-5 h-5 text-blue-400" />
-          {t('history.title')}
-        </h2>
-        <p className="text-[10px] text-hint mt-0.5">{t('history.desc')}</p>
-      </div>
+    <PageContainer>
+      <PageHeader
+        icon={FileText}
+        iconColor="text-blue-400"
+        title={t('history.title')}
+        description={t('history.desc')}
+      />
 
       {/* KPI 카드 — backend enum 코드(PUNISHED/REFERRED/FALSE_POSITIVE) 기반 비교 */}
       <div className="flex gap-2">
@@ -188,6 +188,6 @@ export function EnforcementHistory() {
           exportFilename="단속이력"
         />
       )}
-    </div>
+    </PageContainer>
   );
 }

frontend/src/features/enforcement/EventList.tsx

@@ -1,6 +1,9 @@
 import { useState, useEffect, useCallback, useMemo } from 'react';
 import { useTranslation } from 'react-i18next';
 import { Badge } from '@shared/components/ui/badge';
+import { Button } from '@shared/components/ui/button';
+import { Select } from '@shared/components/ui/select';
+import { PageContainer, PageHeader } from '@shared/components/layout';
 import { DataTable, type DataColumn } from '@shared/components/common/DataTable';
 import { FileUpload } from '@shared/components/common/FileUpload';
 import {
@@ -135,45 +138,41 @@ export function EventList() {
   const kpiTotal = (stats['TOTAL'] as number | undefined) ?? EVENTS.length;
 
   return (
-    <div className="p-5 space-y-4">
-      {/* 헤더 */}
-      <div className="flex items-center justify-between">
-        <div>
-          <h2 className="text-lg font-bold text-heading whitespace-nowrap flex items-center gap-2">
-            <Radar className="w-5 h-5 text-blue-400" />
-            {t('eventList.title')}
-          </h2>
-          <p className="text-[10px] text-hint mt-0.5">
-            {t('eventList.desc')}
-          </p>
-        </div>
-        <div className="flex items-center gap-2">
-          {/* 등급 필터 */}
+    <PageContainer>
+      <PageHeader
+        icon={Radar}
+        iconColor="text-blue-400"
+        title={t('eventList.title')}
+        description={t('eventList.desc')}
+        actions={
+          <>
             <div className="flex items-center gap-1">
               <Filter className="w-3.5 h-3.5 text-hint" />
-            <select
+              <Select
+                size="sm"
                 value={levelFilter}
                 onChange={(e) => setLevelFilter(e.target.value)}
                 title="등급 필터"
-              className="bg-surface-overlay border border-slate-700/50 rounded-lg px-3 py-1.5 text-[11px] text-label focus:outline-none focus:border-blue-500/50"
+                className="w-32"
               >
                 <option value="">전체 등급</option>
                 <option value="CRITICAL">CRITICAL</option>
                 <option value="HIGH">HIGH</option>
                 <option value="MEDIUM">MEDIUM</option>
                 <option value="LOW">LOW</option>
-            </select>
+              </Select>
             </div>
-          <button
-            type="button"
+            <Button
+              variant="secondary"
+              size="sm"
               onClick={() => setShowUpload(!showUpload)}
-            className="flex items-center gap-1 px-3 py-1.5 bg-surface-overlay border border-border rounded-lg text-[10px] text-muted-foreground hover:text-heading transition-colors"
+              icon={<Upload className="w-3 h-3" />}
             >
-            <Upload className="w-3 h-3" />
               파일 업로드
-          </button>
-        </div>
-      </div>
+            </Button>
+          </>
+        }
+      />
 
       {/* KPI 요약 */}
       <div className="grid grid-cols-5 gap-3">
@@ -248,6 +247,6 @@ export function EventList() {
           exportFilename="이벤트목록"
         />
       )}
-    </div>
+    </PageContainer>
   );
 }

frontend/src/features/field-ops/AIAlert.tsx

@@ -1,6 +1,7 @@
 import { useCallback, useEffect, useMemo, useState } from 'react';
 import { useTranslation } from 'react-i18next';
 import { Badge } from '@shared/components/ui/badge';
+import { PageContainer, PageHeader } from '@shared/components/layout';
 import { DataTable, type DataColumn } from '@shared/components/common/DataTable';
 import { Send, Loader2, AlertTriangle } from 'lucide-react';
 import { getAlerts, type PredictionAlert } from '@/services/event';
@@ -140,34 +141,37 @@ export function AIAlert() {
 
   if (loading) {
     return (
-      <div className="p-5 flex items-center justify-center gap-2 text-muted-foreground">
+      <PageContainer>
+        <div className="flex items-center justify-center gap-2 text-muted-foreground py-8">
           <Loader2 className="w-5 h-5 animate-spin" />
           <span>알림 데이터 로딩 중...</span>
         </div>
+      </PageContainer>
     );
   }
 
   if (error) {
     return (
-      <div className="p-5 flex items-center justify-center gap-2 text-red-400">
+      <PageContainer>
+        <div className="flex items-center justify-center gap-2 text-red-400 py-8">
           <AlertTriangle className="w-5 h-5" />
           <span>알림 조회 실패: {error}</span>
           <button type="button" onClick={fetchAlerts} className="ml-2 text-xs underline text-cyan-400">
             재시도
           </button>
         </div>
+      </PageContainer>
     );
   }
 
   return (
-    <div className="p-5 space-y-4">
-      <div>
-        <h2 className="text-lg font-bold text-heading whitespace-nowrap flex items-center gap-2">
-          <Send className="w-5 h-5 text-yellow-400" />
-          {t('aiAlert.title')}
-        </h2>
-        <p className="text-[10px] text-hint mt-0.5">{t('aiAlert.desc')}</p>
-      </div>
+    <PageContainer>
+      <PageHeader
+        icon={Send}
+        iconColor="text-yellow-400"
+        title={t('aiAlert.title')}
+        description={t('aiAlert.desc')}
+      />
       <div className="flex gap-2">
         {[
           { l: '총 발송', v: totalElements, c: 'text-heading' },
@@ -191,6 +195,6 @@ export function AIAlert() {
         searchKeys={['channel', 'recipient']}
         exportFilename="AI알림이력"
       />
-    </div>
+    </PageContainer>
   );
 }

frontend/src/features/field-ops/MobileService.tsx

@@ -2,6 +2,7 @@ import { useEffect, useMemo, useRef, useCallback } from 'react';
 import { useTranslation } from 'react-i18next';
 import { Card, CardContent } from '@shared/components/ui/card';
 import { Badge } from '@shared/components/ui/badge';
+import { PageContainer, PageHeader } from '@shared/components/layout';
 import { Smartphone, MapPin, Bell, Wifi, WifiOff, Shield, AlertTriangle, Navigation } from 'lucide-react';
 import { BaseMap, createMarkerLayer, createPolylineLayer, useMapLayers, type MapHandle, type MarkerData } from '@lib/map';
 import { useEventStore } from '@stores/eventStore';
@@ -52,11 +53,13 @@ export function MobileService() {
   );
 
   return (
-    <div className="p-5 space-y-4">
-      <div>
-        <h2 className="text-lg font-bold text-heading whitespace-nowrap flex items-center gap-2"><Smartphone className="w-5 h-5 text-blue-400" />{t('mobileService.title')}</h2>
-        <p className="text-[10px] text-hint mt-0.5">{t('mobileService.desc')}</p>
-      </div>
+    <PageContainer>
+      <PageHeader
+        icon={Smartphone}
+        iconColor="text-blue-400"
+        title={t('mobileService.title')}
+        description={t('mobileService.desc')}
+      />
       <div className="grid grid-cols-3 gap-3">
         {/* 모바일 프리뷰 */}
         <Card>
@@ -143,6 +146,6 @@ export function MobileService() {
           </CardContent></Card>
         </div>
       </div>
-    </div>
+    </PageContainer>
   );
 }

frontend/src/features/field-ops/ShipAgent.tsx

@@ -1,9 +1,9 @@
 import { useMemo } from 'react';
 import { useTranslation } from 'react-i18next';
-import { Card, CardContent } from '@shared/components/ui/card';
 import { Badge } from '@shared/components/ui/badge';
+import { PageContainer, PageHeader } from '@shared/components/layout';
 import { DataTable, type DataColumn } from '@shared/components/common/DataTable';
-import { Monitor, Ship, Wifi, WifiOff, RefreshCw, MapPin, Clock, CheckCircle } from 'lucide-react';
+import { Monitor } from 'lucide-react';
 import { getDeviceStatusIntent, getDeviceStatusLabel } from '@shared/constants/deviceStatuses';
 import { useSettingsStore } from '@stores/settingsStore';
 
@@ -44,16 +44,14 @@ export function ShipAgent() {
   ], [tc, lang]);
 
   return (
-    <div className="p-5 space-y-4">
-      <div>
-        <h2 className="text-lg font-bold text-heading whitespace-nowrap flex items-center gap-2">
-          <Monitor className="w-5 h-5 text-cyan-400" />{t('shipAgent.title')}
-          <span className="inline-flex items-center gap-1 px-2 py-1 bg-yellow-500/15 border border-yellow-500/30 rounded text-[10px] text-yellow-400 font-normal">
-            <span>⚠</span><span>데모 데이터 (백엔드 API 미구현)</span>
-          </span>
-        </h2>
-        <p className="text-[10px] text-hint mt-0.5">{t('shipAgent.desc')}</p>
-      </div>
+    <PageContainer>
+      <PageHeader
+        icon={Monitor}
+        iconColor="text-cyan-400"
+        title={t('shipAgent.title')}
+        description={t('shipAgent.desc')}
+        demo
+      />
       <div className="flex gap-2">
         {[{ l: '전체 Agent', v: DATA.length, c: 'text-heading' }, { l: '온라인', v: DATA.filter(d => d.status === '온라인').length, c: 'text-green-400' }, { l: '오프라인', v: DATA.filter(d => d.status === '오프라인').length, c: 'text-red-400' }, { l: '미배포', v: DATA.filter(d => d.status === '미배포').length, c: 'text-muted-foreground' }].map(k => (
           <div key={k.l} className="flex-1 flex items-center gap-2 px-3 py-2 rounded-xl border border-border bg-card">
@@ -62,6 +60,6 @@ export function ShipAgent() {
         ))}
       </div>
       <DataTable data={DATA} columns={cols} pageSize={10} searchPlaceholder="함정명, Agent ID 검색..." searchKeys={['ship', 'id']} exportFilename="함정Agent" />
-    </div>
+    </PageContainer>
   );
 }

frontend/src/features/patrol/FleetOptimization.tsx

@@ -3,6 +3,8 @@ import { useTranslation } from 'react-i18next';
 import { BaseMap, STATIC_LAYERS, createMarkerLayer, createPolylineLayer, createZoneLayer, useMapLayers, type MapHandle } from '@lib/map';
 import { Card, CardContent } from '@shared/components/ui/card';
 import { Badge } from '@shared/components/ui/badge';
+import { Button } from '@shared/components/ui/button';
+import { PageContainer, PageHeader } from '@shared/components/layout';
 import { Users, Ship, Target, BarChart3, Play, CheckCircle, AlertTriangle, Layers, RefreshCw } from 'lucide-react';
 import { usePatrolStore } from '@stores/patrolStore';
 
@@ -96,24 +98,31 @@ export function FleetOptimization() {
   useMapLayers(mapRef, buildLayers, [ships, COVERAGE, FLEET_ROUTES]);
 
   return (
-    <div className="p-5 space-y-4">
-      <div className="flex items-center justify-between">
-        <div>
-          <h2 className="text-lg font-bold text-heading whitespace-nowrap flex items-center gap-2">
-            <Users className="w-5 h-5 text-purple-400" />{t('fleetOptimization.title')}
-            <span className="inline-flex items-center gap-1 px-2 py-1 bg-yellow-500/15 border border-yellow-500/30 rounded text-[10px] text-yellow-400 font-normal">
-              <span>⚠</span>
-              <span>데모 데이터 (백엔드 API 미구현)</span>
-            </span>
-          </h2>
-          <p className="text-[10px] text-hint mt-0.5">{t('fleetOptimization.desc')}</p>
-        </div>
-        <div className="flex gap-1.5">
-          <button onClick={() => setSimRunning(true)} className="flex items-center gap-1 px-3 py-1.5 bg-purple-600 hover:bg-purple-500 text-on-vivid text-[10px] font-bold rounded-lg"><Play className="w-3 h-3" />시뮬레이션</button>
-          <button onClick={() => setApproved(true)} disabled={!simRunning}
-            className="flex items-center gap-1 px-3 py-1.5 bg-green-600 hover:bg-green-500 disabled:opacity-30 text-on-vivid text-[10px] font-bold rounded-lg"><CheckCircle className="w-3 h-3" />최종 승인</button>
-        </div>
-      </div>
+    <PageContainer>
+      <PageHeader
+        icon={Users}
+        iconColor="text-purple-400"
+        title={t('fleetOptimization.title')}
+        description={t('fleetOptimization.desc')}
+        demo
+        actions={
+          <>
+            <Button variant="primary" size="sm" onClick={() => setSimRunning(true)} icon={<Play className="w-3 h-3" />}>
+              시뮬레이션
+            </Button>
+            <Button
+              variant="primary"
+              size="sm"
+              onClick={() => setApproved(true)}
+              disabled={!simRunning}
+              icon={<CheckCircle className="w-3 h-3" />}
+              className="bg-green-600 hover:bg-green-500 border-green-700"
+            >
+              최종 승인
+            </Button>
+          </>
+        }
+      />
 
       {/* KPI */}
       <div className="flex gap-2">
@@ -218,6 +227,6 @@ export function FleetOptimization() {
           </div>
         </CardContent>
       </Card>
-    </div>
+    </PageContainer>
   );
 }

frontend/src/features/patrol/PatrolRoute.tsx

@@ -4,6 +4,8 @@ import type maplibregl from 'maplibre-gl';
 import { BaseMap, STATIC_LAYERS, createMarkerLayer, createPolylineLayer, useMapLayers, type MapHandle } from '@lib/map';
 import { Card, CardContent } from '@shared/components/ui/card';
 import { Badge } from '@shared/components/ui/badge';
+import { Button } from '@shared/components/ui/button';
+import { PageContainer, PageHeader } from '@shared/components/layout';
 import { Navigation, Ship, MapPin, Clock, Wind, Anchor, Play, BarChart3, Target, Settings, CheckCircle, Share2 } from 'lucide-react';
 import { usePatrolStore } from '@stores/patrolStore';
 
@@ -93,23 +95,24 @@ export function PatrolRoute() {
   if (!currentShip || !route) return null;
 
   return (
-    <div className="p-5 space-y-4">
-      <div className="flex items-center justify-between">
-        <div>
-          <h2 className="text-lg font-bold text-heading whitespace-nowrap flex items-center gap-2">
-            <Navigation className="w-5 h-5 text-cyan-400" />{t('patrolRoute.title')}
-            <span className="inline-flex items-center gap-1 px-2 py-1 bg-yellow-500/15 border border-yellow-500/30 rounded text-[10px] text-yellow-400 font-normal">
-              <span>⚠</span>
-              <span>데모 데이터 (백엔드 API 미구현)</span>
-            </span>
-          </h2>
-          <p className="text-[10px] text-hint mt-0.5">{t('patrolRoute.desc')}</p>
-        </div>
-        <div className="flex gap-1.5">
-          <button className="flex items-center gap-1 px-3 py-1.5 bg-cyan-600 hover:bg-cyan-500 text-on-vivid text-[10px] font-bold rounded-lg"><Play className="w-3 h-3" />경로 생성</button>
-          <button className="flex items-center gap-1 px-3 py-1.5 bg-surface-overlay border border-border rounded-lg text-[10px] text-muted-foreground hover:text-heading"><Share2 className="w-3 h-3" />공유</button>
-        </div>
-      </div>
+    <PageContainer>
+      <PageHeader
+        icon={Navigation}
+        iconColor="text-cyan-400"
+        title={t('patrolRoute.title')}
+        description={t('patrolRoute.desc')}
+        demo
+        actions={
+          <>
+            <Button variant="primary" size="sm" icon={<Play className="w-3 h-3" />}>
+              경로 생성
+            </Button>
+            <Button variant="secondary" size="sm" icon={<Share2 className="w-3 h-3" />}>
+              공유
+            </Button>
+          </>
+        }
+      />
 
       <div className="grid grid-cols-4 gap-3">
         {/* 함정 선택 */}
@@ -215,6 +218,6 @@ export function PatrolRoute() {
           </div>
         </CardContent>
       </Card>
-    </div>
+    </PageContainer>
   );
 }

frontend/src/features/risk-assessment/EnforcementPlan.tsx

@@ -2,6 +2,8 @@ import { useState, useEffect, useRef, useCallback } from 'react';
 import { useTranslation } from 'react-i18next';
 import { Card, CardContent } from '@shared/components/ui/card';
 import { Badge } from '@shared/components/ui/badge';
+import { Button } from '@shared/components/ui/button';
+import { PageContainer, PageHeader } from '@shared/components/layout';
 import { DataTable, type DataColumn } from '@shared/components/common/DataTable';
 import { Shield, AlertTriangle, Ship, Plus, Calendar, Users } from 'lucide-react';
 import { BaseMap, STATIC_LAYERS, createMarkerLayer, createRadiusLayer, useMapLayers, type MapHandle } from '@lib/map';
@@ -118,14 +120,18 @@ export function EnforcementPlan() {
   const totalCrew = PLANS.reduce((sum, p) => sum + p.crew, 0);
 
   return (
-    <div className="p-5 space-y-4">
-      <div className="flex items-center justify-between">
-        <div>
-          <h2 className="text-lg font-bold text-heading whitespace-nowrap flex items-center gap-2"><Shield className="w-5 h-5 text-orange-400" />{t('enforcementPlan.title')}</h2>
-          <p className="text-[10px] text-hint mt-0.5">{t('enforcementPlan.desc')}</p>
-        </div>
-        <button className="flex items-center gap-1.5 px-4 py-2 bg-blue-600 hover:bg-blue-500 text-on-vivid text-[11px] font-bold rounded-lg"><Plus className="w-3.5 h-3.5" />단속 계획 수립</button>
-      </div>
+    <PageContainer>
+      <PageHeader
+        icon={Shield}
+        iconColor="text-orange-400"
+        title={t('enforcementPlan.title')}
+        description={t('enforcementPlan.desc')}
+        actions={
+          <Button variant="primary" size="md" icon={<Plus className="w-3.5 h-3.5" />}>
+            단속 계획 수립
+          </Button>
+        }
+      />
 
       {/* 로딩/에러 상태 */}
       {loading && (
@@ -185,6 +191,6 @@ export function EnforcementPlan() {
           </div>
         </CardContent>
       </Card>
-    </div>
+    </PageContainer>
   );
 }