実装完了

Backend（Django）
backend/apps/mail/serializers.py

MailEmailListSerializer を新規追加（フロントエンド向けメール一覧用）
feedback_token フィールドを含む（フィードバックリンク表示用）
backend/apps/mail/views.py

MailEmailCreateView → MailEmailView に変更（GET+POST を統合）
GET /api/mail/emails/ : JWT認証でメール履歴取得（最新100件、account/verdict フィルター対応）
POST /api/mail/emails/ : APIキー認証でWindmillからのメール記録（既存動作を維持）
get_permissions() でメソッドごとに認証方法を切替
MailStatsView を新規追加
GET /api/mail/stats/ : 今日の処理件数、LINE通知数、フィードバック待ち、ルール数を返す
backend/apps/mail/urls.py

emails/ → MailEmailView（GET+POST）
stats/ → MailStatsView を追加
Frontend（Next.js）
frontend/src/app/mail/history/page.tsx （新規作成）

メール処理履歴の一覧テーブル
アカウント・LLM判定でフィルタリング可能
LLM判定・フィードバック状態をバッジで表示
フィードバックトークンがあれば「回答」リンクを表示
frontend/src/app/dashboard/page.tsx （再設計）

2カラムのモジュールカード形式に変更
作付け計画カード: 年度セレクタ、集計数値、作物別集計、クイックアクセス
メール通知カード: 今日の処理件数、LINE通知数、フィードバック待ち、ルール数、メール履歴・ルール管理ボタン

.claude/settings.json

@@ -10,7 +10,9 @@
       "Bash(__NEW_LINE_aab4b5b969b9f00e__ curl -sk -H \"Authorization: Bearer $TOKEN\" \"http://localhost/api/w/admins/jobs_u/get/$JOB_ID\")",
       "Bash(__NEW_LINE_200db6a80207b533__ curl -sk -H \"Authorization: Bearer $TOKEN\" \"http://localhost/api/w/admins/jobs_u/completed/get_result/$JOB_ID\")",
       "Bash(STEP_JOB=\"019c8344-4fc4-f59e-1009-c3733e28b46c\")",
-      "Bash(__NEW_LINE_94a6a83a7608650e__ curl -sk -H \"Authorization: Bearer $TOKEN\" \"http://localhost/api/w/admins/jobs_u/completed/get/$STEP_JOB\")"
+      "Bash(__NEW_LINE_94a6a83a7608650e__ curl -sk -H \"Authorization: Bearer $TOKEN\" \"http://localhost/api/w/admins/jobs_u/completed/get/$STEP_JOB\")",
+      "Bash(docker start:*)",
+      "Bash(docker stop:*)"
     ]
   }
 }

backend/apps/mail/serializers.py

@@ -32,6 +32,24 @@ class MailEmailCreateSerializer(serializers.ModelSerializer):
         ]
 
 
+class MailEmailListSerializer(serializers.ModelSerializer):
+    """フロントエンド向けメール一覧用"""
+    feedback_token = serializers.SerializerMethodField()
+
+    class Meta:
+        model = MailEmail
+        fields = [
+            'id', 'account', 'sender_email', 'sender_domain',
+            'subject', 'received_at', 'llm_verdict',
+            'notified_at', 'feedback', 'feedback_at', 'feedback_token',
+        ]
+
+    def get_feedback_token(self, obj):
+        if hasattr(obj, 'notification_token'):
+            return str(obj.notification_token.token)
+        return None
+
+
 class FeedbackDetailSerializer(serializers.ModelSerializer):
     """フィードバックページ表示用"""
     class Meta:

backend/apps/mail/urls.py

@@ -9,7 +9,12 @@ urlpatterns = [
     # Windmill向けAPI（APIキー認証）
     path('sender-rule/', views.SenderRuleView.as_view(), name='mail-sender-rule'),
     path('sender-context/', views.SenderContextView.as_view(), name='mail-sender-context'),
-    path('emails/', views.MailEmailCreateView.as_view(), name='mail-email-create'),
+
+    # メール記録（POST: APIキー認証）＆履歴取得（GET: JWT認証）
+    path('emails/', views.MailEmailView.as_view(), name='mail-emails'),
+
+    # ダッシュボード用統計（JWT認証）
+    path('stats/', views.MailStatsView.as_view(), name='mail-stats'),
 
     # フィードバック（認証不要、UUIDトークン）
     path('feedback/<uuid:token>/', views.FeedbackView.as_view(), name='mail-feedback'),

backend/apps/mail/views.py

@@ -12,6 +12,7 @@ from .models import MailSender, MailEmail, MailNotificationToken
 from .serializers import (
     MailSenderSerializer,
     MailEmailCreateSerializer,
+    MailEmailListSerializer,
     FeedbackDetailSerializer,
 )
 
@@ -107,13 +108,29 @@ class SenderContextView(APIView):
         })
 
 
-class MailEmailCreateView(APIView):
+class MailEmailView(APIView):
     """
-    POST /api/mail/emails/
-    メールを記録する。llm_verdict == 'important' の場合はトークンも発行する。
+    GET  /api/mail/emails/  メール処理履歴を取得（JWT認証）
+    POST /api/mail/emails/  メールを記録する（APIキー認証、Windmill向け）
     """
-    permission_classes = [MailAPIKeyPermission]
-    authentication_classes = []
+
+    def get_permissions(self):
+        if self.request.method == 'POST':
+            return [MailAPIKeyPermission()]
+        return [IsAuthenticated()]
+
+    def get(self, request):
+        qs = MailEmail.objects.select_related('notification_token').order_by('-received_at')
+
+        account = request.query_params.get('account')
+        if account:
+            qs = qs.filter(account=account)
+        verdict = request.query_params.get('verdict')
+        if verdict:
+            qs = qs.filter(llm_verdict=verdict)
+
+        serializer = MailEmailListSerializer(qs[:100], many=True)
+        return Response(serializer.data)
 
     def post(self, request):
         serializer = MailEmailCreateSerializer(data=request.data)
@@ -134,6 +151,31 @@ class MailEmailCreateView(APIView):
         return Response(response_data, status=status.HTTP_201_CREATED)
 
 
+class MailStatsView(APIView):
+    """
+    GET /api/mail/stats/  ダッシュボード用統計
+    """
+    permission_classes = [IsAuthenticated]
+
+    def get(self, request):
+        today = timezone.now().date()
+
+        today_processed = MailEmail.objects.filter(received_at__date=today).count()
+        today_notified = MailEmail.objects.filter(notified_at__date=today).count()
+        feedback_pending = MailEmail.objects.filter(
+            llm_verdict='important',
+            feedback__isnull=True
+        ).count()
+        total_rules = MailSender.objects.count()
+
+        return Response({
+            'today_processed': today_processed,
+            'today_notified': today_notified,
+            'feedback_pending': feedback_pending,
+            'total_rules': total_rules,
+        })
+
+
 # ---------------------------------------------------------------------------
 # フィードバックビュー（認証不要）
 # ---------------------------------------------------------------------------

backend/keinasystem/settings.py

@@ -148,6 +148,8 @@ SIMPLE_JWT = {
 CORS_ALLOWED_ORIGINS = [
     "http://localhost:3000",
     "http://127.0.0.1:3000",
+    "http://localhost:3001",
+    "http://127.0.0.1:3001",
 ]
 
 # メールフィルタリング機能

frontend/src/app/dashboard/page.tsx

@@ -4,7 +4,11 @@ import { useState, useEffect } from 'react';
 import { useRouter } from 'next/navigation';
 import { api } from '@/lib/api';
 import Navbar from '@/components/Navbar';
-import { Wheat, MapPin, FileText, Upload, Loader2, AlertTriangle } from 'lucide-react';
+import {
+  Wheat, MapPin, FileText, Upload,
+  Loader2, AlertTriangle,
+  Mail, Clock, Shield, History,
+} from 'lucide-react';
 
 interface SummaryData {
   year: number;
@@ -16,28 +20,52 @@ interface SummaryData {
   by_crop: { crop: string; count: number; area: number }[];
 }
 
+interface MailStats {
+  today_processed: number;
+  today_notified: number;
+  feedback_pending: number;
+  total_rules: number;
+}
+
 export default function DashboardPage() {
   const router = useRouter();
   const currentYear = new Date().getFullYear();
   const [year, setYear] = useState(currentYear);
   const [summary, setSummary] = useState<SummaryData | null>(null);
-  const [loading, setLoading] = useState(true);
+  const [summaryLoading, setSummaryLoading] = useState(true);
+  const [mailStats, setMailStats] = useState<MailStats | null>(null);
+  const [mailLoading, setMailLoading] = useState(true);
 
   useEffect(() => {
     const fetchSummary = async () => {
-      setLoading(true);
+      setSummaryLoading(true);
       try {
         const res = await api.get(`/plans/summary/?year=${year}`);
         setSummary(res.data);
       } catch (error) {
         console.error('Failed to fetch summary:', error);
       } finally {
-        setLoading(false);
+        setSummaryLoading(false);
       }
     };
     fetchSummary();
   }, [year]);
 
+  useEffect(() => {
+    const fetchMailStats = async () => {
+      setMailLoading(true);
+      try {
+        const res = await api.get('/mail/stats/');
+        setMailStats(res.data);
+      } catch (error) {
+        console.error('Failed to fetch mail stats:', error);
+      } finally {
+        setMailLoading(false);
+      }
+    };
+    fetchMailStats();
+  }, []);
+
   const years = [];
   for (let y = currentYear + 1; y >= currentYear - 3; y--) {
     years.push(y);
@@ -46,14 +74,22 @@ export default function DashboardPage() {
   return (
     <div className="min-h-screen bg-gray-50">
       <Navbar />
-      <div className="max-w-4xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
-        {/* ヘッダー */}
-        <div className="flex items-center justify-between mb-6">
-          <h1 className="text-2xl font-bold text-gray-900">ダッシュボード</h1>
+      <div className="max-w-6xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
+        <h1 className="text-2xl font-bold text-gray-900 mb-6">ダッシュボード</h1>
+
+        <div className="grid grid-cols-1 lg:grid-cols-2 gap-6">
+
+          {/* ===== 作付け計画モジュール ===== */}
+          <div className="bg-white rounded-lg shadow flex flex-col">
+            <div className="px-5 py-4 border-b border-gray-200 flex items-center justify-between">
+              <div className="flex items-center gap-2">
+                <Wheat className="h-5 w-5 text-green-600" />
+                <h2 className="text-base font-semibold text-gray-900">作付け計画</h2>
+              </div>
               <select
                 value={year}
                 onChange={(e) => setYear(Number(e.target.value))}
-            className="px-3 py-2 border border-gray-300 rounded-md text-sm"
+                className="px-3 py-1.5 border border-gray-300 rounded-md text-sm"
               >
                 {years.map((y) => (
                   <option key={y} value={y}>{y}年度</option>
@@ -61,30 +97,35 @@ export default function DashboardPage() {
               </select>
             </div>
 
-        {loading ? (
-          <div className="flex items-center justify-center py-16">
-            <Loader2 className="h-8 w-8 animate-spin text-gray-400" />
+            <div className="p-5 space-y-4 flex-1">
+              {summaryLoading ? (
+                <div className="flex justify-center py-12">
+                  <Loader2 className="h-6 w-6 animate-spin text-gray-400" />
                 </div>
               ) : summary ? (
-          <div className="space-y-6">
-            {/* 概要サマリーカード */}
-            <div className="grid grid-cols-1 sm:grid-cols-3 gap-4">
-              <div className="bg-white rounded-lg shadow p-5">
-                <p className="text-sm text-gray-500">全圃場数</p>
-                <p className="text-3xl font-bold text-gray-900 mt-1">{summary.total_fields}<span className="text-base font-normal text-gray-500 ml-1">筆</span></p>
+                <>
+                  {/* 集計数値 */}
+                  <div className="grid grid-cols-3 gap-3">
+                    <div className="bg-gray-50 rounded-lg p-3">
+                      <p className="text-xs text-gray-500">全圃場数</p>
+                      <p className="text-2xl font-bold text-gray-900 mt-1">
+                        {summary.total_fields}<span className="text-xs font-normal text-gray-500 ml-1">筆</span>
+                      </p>
                     </div>
-              <div className="bg-white rounded-lg shadow p-5">
-                <p className="text-sm text-gray-500">作付け済み</p>
-                <p className="text-3xl font-bold text-green-600 mt-1">{summary.assigned_fields}<span className="text-base font-normal text-gray-500 ml-1">筆</span></p>
+                    <div className="bg-gray-50 rounded-lg p-3">
+                      <p className="text-xs text-gray-500">作付け済み</p>
+                      <p className="text-2xl font-bold text-green-600 mt-1">
+                        {summary.assigned_fields}<span className="text-xs font-normal text-gray-500 ml-1">筆</span>
+                      </p>
                     </div>
-              <div className="bg-white rounded-lg shadow p-5">
-                <p className="text-sm text-gray-500">未割当</p>
+                    <div className="bg-gray-50 rounded-lg p-3">
+                      <p className="text-xs text-gray-500">未割当</p>
                       <div className="flex items-center mt-1">
-                  <p className={`text-3xl font-bold ${summary.unassigned_fields > 0 ? 'text-amber-500' : 'text-gray-400'}`}>
-                    {summary.unassigned_fields}<span className="text-base font-normal text-gray-500 ml-1">筆</span>
+                        <p className={`text-2xl font-bold ${summary.unassigned_fields > 0 ? 'text-amber-500' : 'text-gray-400'}`}>
+                          {summary.unassigned_fields}<span className="text-xs font-normal text-gray-500 ml-1">筆</span>
                         </p>
                         {summary.unassigned_fields > 0 && (
-                    <AlertTriangle className="h-5 w-5 text-amber-500 ml-2" />
+                          <AlertTriangle className="h-4 w-4 text-amber-500 ml-1 flex-shrink-0" />
                         )}
                       </div>
                     </div>
@@ -92,28 +133,21 @@ export default function DashboardPage() {
 
                   {/* 作物別集計 */}
                   {summary.by_crop.length > 0 && (
-              <div className="bg-white rounded-lg shadow p-5">
-                <h2 className="text-lg font-semibold text-gray-900 mb-3">作物別集計</h2>
+                    <div>
+                      <p className="text-xs font-medium text-gray-500 mb-2">作物別集計</p>
                       <table className="w-full text-sm">
-                  <thead>
-                    <tr className="border-b border-gray-200">
-                      <th className="text-left py-2 text-gray-500 font-medium">作物</th>
-                      <th className="text-right py-2 text-gray-500 font-medium">筆数</th>
-                      <th className="text-right py-2 text-gray-500 font-medium">面積（反）</th>
-                    </tr>
-                  </thead>
                         <tbody>
                           {summary.by_crop.map((item) => (
-                      <tr key={item.crop} className="border-b border-gray-100">
-                        <td className="py-2 text-gray-900">{item.crop}</td>
-                        <td className="py-2 text-right text-gray-700">{item.count}</td>
-                        <td className="py-2 text-right text-gray-700">{item.area.toFixed(1)}</td>
+                            <tr key={item.crop} className="border-b border-gray-100 last:border-0">
+                              <td className="py-1.5 text-gray-900">{item.crop}</td>
+                              <td className="py-1.5 text-right text-gray-600">{item.count}筆</td>
+                              <td className="py-1.5 text-right text-gray-600">{item.area.toFixed(1)}反</td>
                             </tr>
                           ))}
-                    <tr className="font-semibold">
-                      <td className="py-2 text-gray-900">合計</td>
-                      <td className="py-2 text-right text-gray-900">{summary.total_plans}</td>
-                      <td className="py-2 text-right text-gray-900">{summary.total_area.toFixed(1)}</td>
+                          <tr className="font-semibold border-t border-gray-200">
+                            <td className="pt-2 text-gray-900">合計</td>
+                            <td className="pt-2 text-right text-gray-900">{summary.total_plans}筆</td>
+                            <td className="pt-2 text-right text-gray-900">{summary.total_area.toFixed(1)}反</td>
                           </tr>
                         </tbody>
                       </table>
@@ -121,46 +155,116 @@ export default function DashboardPage() {
                   )}
 
                   {/* クイックアクセス */}
-            <div className="bg-white rounded-lg shadow p-5">
-              <h2 className="text-lg font-semibold text-gray-900 mb-3">クイックアクセス</h2>
-              <div className="grid grid-cols-2 sm:grid-cols-4 gap-3">
+                  <div className="grid grid-cols-2 gap-2 pt-2">
                     <button
                       onClick={() => router.push('/allocation')}
-                  className="flex flex-col items-center p-4 rounded-lg border border-gray-200 hover:bg-green-50 hover:border-green-300 transition-colors"
+                      className="flex items-center gap-2 px-3 py-2 rounded-md border border-gray-200 hover:bg-green-50 hover:border-green-300 transition-colors text-sm text-gray-700"
                     >
-                  <Wheat className="h-6 w-6 text-green-600 mb-2" />
-                  <span className="text-sm text-gray-700">作付け計画</span>
+                      <Wheat className="h-4 w-4 text-green-600 flex-shrink-0" />
+                      作付け計画
                     </button>
                     <button
                       onClick={() => router.push('/fields')}
-                  className="flex flex-col items-center p-4 rounded-lg border border-gray-200 hover:bg-blue-50 hover:border-blue-300 transition-colors"
+                      className="flex items-center gap-2 px-3 py-2 rounded-md border border-gray-200 hover:bg-blue-50 hover:border-blue-300 transition-colors text-sm text-gray-700"
                     >
-                  <MapPin className="h-6 w-6 text-blue-600 mb-2" />
-                  <span className="text-sm text-gray-700">圃場管理</span>
+                      <MapPin className="h-4 w-4 text-blue-600 flex-shrink-0" />
+                      圃場管理
                     </button>
                     <button
                       onClick={() => router.push('/reports')}
-                  className="flex flex-col items-center p-4 rounded-lg border border-gray-200 hover:bg-purple-50 hover:border-purple-300 transition-colors"
+                      className="flex items-center gap-2 px-3 py-2 rounded-md border border-gray-200 hover:bg-purple-50 hover:border-purple-300 transition-colors text-sm text-gray-700"
                     >
-                  <FileText className="h-6 w-6 text-purple-600 mb-2" />
-                  <span className="text-sm text-gray-700">帳票出力</span>
+                      <FileText className="h-4 w-4 text-purple-600 flex-shrink-0" />
+                      帳票出力
                     </button>
                     <button
                       onClick={() => router.push('/import')}
-                  className="flex flex-col items-center p-4 rounded-lg border border-gray-200 hover:bg-orange-50 hover:border-orange-300 transition-colors"
+                      className="flex items-center gap-2 px-3 py-2 rounded-md border border-gray-200 hover:bg-orange-50 hover:border-orange-300 transition-colors text-sm text-gray-700"
                     >
-                  <Upload className="h-6 w-6 text-orange-600 mb-2" />
-                  <span className="text-sm text-gray-700">データ取込</span>
+                      <Upload className="h-4 w-4 text-orange-600 flex-shrink-0" />
+                      データ取込
                     </button>
                   </div>
-            </div>
-          </div>
+                </>
               ) : (
-          <div className="text-center py-16 text-gray-500">
-            データの取得に失敗しました
-          </div>
+                <div className="py-12 text-center text-gray-500 text-sm">データの取得に失敗しました</div>
               )}
             </div>
           </div>
+
+          {/* ===== メール通知モジュール ===== */}
+          <div className="bg-white rounded-lg shadow flex flex-col">
+            <div className="px-5 py-4 border-b border-gray-200 flex items-center gap-2">
+              <Mail className="h-5 w-5 text-blue-600" />
+              <h2 className="text-base font-semibold text-gray-900">メール通知</h2>
+            </div>
+
+            <div className="p-5 space-y-4 flex-1">
+              {mailLoading ? (
+                <div className="flex justify-center py-12">
+                  <Loader2 className="h-6 w-6 animate-spin text-gray-400" />
+                </div>
+              ) : mailStats ? (
+                <>
+                  {/* 統計 */}
+                  <div className="grid grid-cols-2 gap-3">
+                    <div className="bg-gray-50 rounded-lg p-3">
+                      <p className="text-xs text-gray-500">今日の処理</p>
+                      <p className="text-2xl font-bold text-gray-900 mt-1">
+                        {mailStats.today_processed}<span className="text-xs font-normal text-gray-500 ml-1">件</span>
+                      </p>
+                    </div>
+                    <div className="bg-gray-50 rounded-lg p-3">
+                      <p className="text-xs text-gray-500">LINE通知済み</p>
+                      <p className="text-2xl font-bold text-blue-600 mt-1">
+                        {mailStats.today_notified}<span className="text-xs font-normal text-gray-500 ml-1">件</span>
+                      </p>
+                    </div>
+                    <div className="bg-gray-50 rounded-lg p-3">
+                      <p className="text-xs text-gray-500">フィードバック待ち</p>
+                      <div className="flex items-center mt-1">
+                        <p className={`text-2xl font-bold ${mailStats.feedback_pending > 0 ? 'text-amber-500' : 'text-gray-400'}`}>
+                          {mailStats.feedback_pending}<span className="text-xs font-normal text-gray-500 ml-1">件</span>
+                        </p>
+                        {mailStats.feedback_pending > 0 && (
+                          <Clock className="h-4 w-4 text-amber-500 ml-1 flex-shrink-0" />
+                        )}
+                      </div>
+                    </div>
+                    <div className="bg-gray-50 rounded-lg p-3">
+                      <p className="text-xs text-gray-500">送信者ルール</p>
+                      <p className="text-2xl font-bold text-gray-900 mt-1">
+                        {mailStats.total_rules}<span className="text-xs font-normal text-gray-500 ml-1">件</span>
+                      </p>
+                    </div>
+                  </div>
+
+                  {/* クイックアクセス */}
+                  <div className="grid grid-cols-2 gap-2 pt-2">
+                    <button
+                      onClick={() => router.push('/mail/history')}
+                      className="flex items-center gap-2 px-3 py-2 rounded-md border border-gray-200 hover:bg-blue-50 hover:border-blue-300 transition-colors text-sm text-gray-700"
+                    >
+                      <History className="h-4 w-4 text-blue-600 flex-shrink-0" />
+                      メール履歴
+                    </button>
+                    <button
+                      onClick={() => router.push('/mail/rules')}
+                      className="flex items-center gap-2 px-3 py-2 rounded-md border border-gray-200 hover:bg-blue-50 hover:border-blue-300 transition-colors text-sm text-gray-700"
+                    >
+                      <Shield className="h-4 w-4 text-blue-600 flex-shrink-0" />
+                      ルール管理
+                    </button>
+                  </div>
+                </>
+              ) : (
+                <div className="py-12 text-center text-gray-500 text-sm">データの取得に失敗しました</div>
+              )}
+            </div>
+          </div>
+
+        </div>
+      </div>
+    </div>
   );
 }

frontend/src/app/mail/history/page.tsx

@@ -0,0 +1,199 @@
+'use client';
+
+import { useState, useEffect } from 'react';
+import { useRouter } from 'next/navigation';
+import { api } from '@/lib/api';
+import Navbar from '@/components/Navbar';
+import { Mail, Loader2, ExternalLink, CheckCircle, XCircle, Clock, Shield } from 'lucide-react';
+
+interface MailEmail {
+  id: number;
+  account: string;
+  sender_email: string;
+  sender_domain: string;
+  subject: string;
+  received_at: string;
+  llm_verdict: 'important' | 'not_important';
+  notified_at: string | null;
+  feedback: 'important' | 'not_important' | 'never_notify' | 'always_notify' | null;
+  feedback_at: string | null;
+  feedback_token: string | null;
+}
+
+const FEEDBACK_LABELS: Record<string, string> = {
+  important: '重要だった',
+  not_important: '普通のメール',
+  never_notify: '通知しない',
+  always_notify: '常に通知',
+};
+
+const ACCOUNT_LABELS: Record<string, string> = {
+  gmail: 'Gmail',
+  hotmail: 'Hotmail',
+  xserver: 'Xserver',
+};
+
+export default function MailHistoryPage() {
+  const router = useRouter();
+  const [emails, setEmails] = useState<MailEmail[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [filterAccount, setFilterAccount] = useState('');
+  const [filterVerdict, setFilterVerdict] = useState('');
+
+  useEffect(() => {
+    const fetchEmails = async () => {
+      setLoading(true);
+      try {
+        const params = new URLSearchParams();
+        if (filterAccount) params.set('account', filterAccount);
+        if (filterVerdict) params.set('verdict', filterVerdict);
+        const res = await api.get(`/mail/emails/?${params.toString()}`);
+        setEmails(res.data);
+      } catch (error) {
+        console.error('Failed to fetch emails:', error);
+      } finally {
+        setLoading(false);
+      }
+    };
+    fetchEmails();
+  }, [filterAccount, filterVerdict]);
+
+  const formatDate = (dateStr: string) => {
+    return new Date(dateStr).toLocaleString('ja-JP', {
+      month: '2-digit',
+      day: '2-digit',
+      hour: '2-digit',
+      minute: '2-digit',
+    });
+  };
+
+  return (
+    <div className="min-h-screen bg-gray-50">
+      <Navbar />
+      <div className="max-w-6xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
+        {/* ヘッダー */}
+        <div className="flex items-center justify-between mb-6">
+          <div className="flex items-center gap-3">
+            <Mail className="h-6 w-6 text-blue-600" />
+            <h1 className="text-2xl font-bold text-gray-900">メール処理履歴</h1>
+          </div>
+          <button
+            onClick={() => router.push('/mail/rules')}
+            className="flex items-center gap-2 px-4 py-2 text-sm bg-white border border-gray-300 rounded-md hover:bg-gray-50 transition-colors text-gray-700"
+          >
+            <Shield className="h-4 w-4" />
+            ルール管理
+          </button>
+        </div>
+
+        {/* フィルター */}
+        <div className="bg-white rounded-lg shadow p-4 mb-4 flex gap-3">
+          <select
+            value={filterAccount}
+            onChange={(e) => setFilterAccount(e.target.value)}
+            className="px-3 py-2 border border-gray-300 rounded-md text-sm"
+          >
+            <option value="">全アカウント</option>
+            <option value="gmail">Gmail</option>
+            <option value="hotmail">Hotmail</option>
+            <option value="xserver">Xserver</option>
+          </select>
+          <select
+            value={filterVerdict}
+            onChange={(e) => setFilterVerdict(e.target.value)}
+            className="px-3 py-2 border border-gray-300 rounded-md text-sm"
+          >
+            <option value="">全判定</option>
+            <option value="important">重要</option>
+            <option value="not_important">通常</option>
+          </select>
+        </div>
+
+        {/* テーブル */}
+        {loading ? (
+          <div className="flex justify-center py-16">
+            <Loader2 className="h-8 w-8 animate-spin text-gray-400" />
+          </div>
+        ) : emails.length === 0 ? (
+          <div className="text-center py-16 text-gray-500">処理済みメールはありません</div>
+        ) : (
+          <div className="bg-white rounded-lg shadow overflow-hidden">
+            <table className="w-full text-sm">
+              <thead className="bg-gray-50 border-b border-gray-200">
+                <tr>
+                  <th className="text-left px-4 py-3 text-gray-500 font-medium whitespace-nowrap">受信日時</th>
+                  <th className="text-left px-4 py-3 text-gray-500 font-medium">送信者</th>
+                  <th className="text-left px-4 py-3 text-gray-500 font-medium">件名</th>
+                  <th className="text-center px-4 py-3 text-gray-500 font-medium whitespace-nowrap">LLM判定</th>
+                  <th className="text-center px-4 py-3 text-gray-500 font-medium whitespace-nowrap">フィードバック</th>
+                  <th className="text-center px-4 py-3 text-gray-500 font-medium"></th>
+                </tr>
+              </thead>
+              <tbody>
+                {emails.map((email) => (
+                  <tr key={email.id} className="border-b border-gray-100 hover:bg-gray-50">
+                    <td className="px-4 py-3 text-gray-600 whitespace-nowrap">
+                      <div>{formatDate(email.received_at)}</div>
+                      <div className="text-xs text-gray-400">{ACCOUNT_LABELS[email.account] ?? email.account}</div>
+                    </td>
+                    <td className="px-4 py-3">
+                      <div className="text-gray-900 text-xs truncate max-w-[180px]">{email.sender_email}</div>
+                    </td>
+                    <td className="px-4 py-3 text-gray-900 max-w-xs">
+                      <div className="truncate">{email.subject}</div>
+                    </td>
+                    <td className="px-4 py-3 text-center">
+                      {email.llm_verdict === 'important' ? (
+                        <span className="inline-flex items-center gap-1 px-2 py-1 rounded-full bg-red-50 text-red-700 text-xs font-medium">
+                          <CheckCircle className="h-3 w-3" />重要
+                        </span>
+                      ) : (
+                        <span className="inline-flex items-center gap-1 px-2 py-1 rounded-full bg-gray-100 text-gray-500 text-xs">
+                          <XCircle className="h-3 w-3" />通常
+                        </span>
+                      )}
+                    </td>
+                    <td className="px-4 py-3 text-center">
+                      {email.feedback ? (
+                        <span className={`inline-flex items-center px-2 py-1 rounded-full text-xs font-medium ${
+                          email.feedback === 'important' ? 'bg-green-50 text-green-700' :
+                          email.feedback === 'not_important' ? 'bg-gray-100 text-gray-600' :
+                          email.feedback === 'never_notify' ? 'bg-orange-50 text-orange-700' :
+                          'bg-blue-50 text-blue-700'
+                        }`}>
+                          {FEEDBACK_LABELS[email.feedback] ?? email.feedback}
+                        </span>
+                      ) : email.llm_verdict === 'important' ? (
+                        <span className="inline-flex items-center gap-1 text-amber-500 text-xs">
+                          <Clock className="h-3 w-3" />未回答
+                        </span>
+                      ) : (
+                        <span className="text-gray-400 text-xs">—</span>
+                      )}
+                    </td>
+                    <td className="px-4 py-3 text-center">
+                      {email.feedback_token && (
+                        <a
+                          href={`/mail/feedback/${email.feedback_token}`}
+                          target="_blank"
+                          rel="noopener noreferrer"
+                          className="inline-flex items-center gap-1 text-blue-600 hover:text-blue-800 text-xs"
+                        >
+                          <ExternalLink className="h-3 w-3" />
+                          回答
+                        </a>
+                      )}
+                    </td>
+                  </tr>
+                ))}
+              </tbody>
+            </table>
+            <div className="px-4 py-3 text-xs text-gray-400 border-t border-gray-100">
+              最新100件を表示
+            </div>
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}

frontend/src/components/Navbar.tsx

@@ -1,7 +1,7 @@
 'use client';
 
 import { useRouter, usePathname } from 'next/navigation';
-import { LogOut, Wheat, MapPin, FileText, Upload, LayoutDashboard, Mail } from 'lucide-react';
+import { LogOut, Wheat, MapPin, FileText, Upload, LayoutDashboard, Mail, History, Shield } from 'lucide-react';
 import { logout } from '@/lib/api';
 
 export default function Navbar() {
@@ -79,14 +79,25 @@ export default function Navbar() {
                 データ取込
               </button>
               <button
-                onClick={() => router.push('/mail/rules')}
+                onClick={() => router.push('/mail/history')}
                 className={`flex items-center px-3 py-2 text-sm rounded-md transition-colors ${
-                  pathname?.startsWith('/mail/')
+                  isActive('/mail/history')
                     ? 'text-green-700 bg-green-50'
                     : 'text-gray-700 hover:text-gray-900 hover:bg-gray-100'
                 }`}
               >
-                <Mail className="h-4 w-4 mr-2" />
+                <History className="h-4 w-4 mr-2" />
+                メール履歴
+              </button>
+              <button
+                onClick={() => router.push('/mail/rules')}
+                className={`flex items-center px-3 py-2 text-sm rounded-md transition-colors ${
+                  isActive('/mail/rules')
+                    ? 'text-green-700 bg-green-50'
+                    : 'text-gray-700 hover:text-gray-900 hover:bg-gray-100'
+                }`}
+              >
+                <Shield className="h-4 w-4 mr-2" />
                 メールルール
               </button>
             </div>