Merge pull request #8 from pdf114514/copilot/update-schedule-display-to-am-pm

スケジュール画面の横軸を午前・午後の2スロットに分割

backend/server.js

@@ -64,18 +64,32 @@ if (!carCols.includes('has_etc')) {
 if (!carCols.includes('tire_type')) {
   db.exec("ALTER TABLE cars ADD COLUMN tire_type TEXT DEFAULT 'ノーマル'");
 }
+if (!carCols.includes('sort_order')) {
+  db.exec('ALTER TABLE cars ADD COLUMN sort_order INTEGER DEFAULT 0');
+  db.exec('UPDATE cars SET sort_order = id');
+}
+db.prepare("UPDATE cars SET tire_type = 'スタッドレス' WHERE tire_type = 'スタットレス'").run();
+
+// Migrate: add period fields to reservations if they don't exist yet
+const resCols = db.prepare("PRAGMA table_info(reservations)").all().map((c) => c.name);
+if (!resCols.includes('start_period')) {
+  db.exec("ALTER TABLE reservations ADD COLUMN start_period TEXT DEFAULT ''");
+}
+if (!resCols.includes('end_period')) {
+  db.exec("ALTER TABLE reservations ADD COLUMN end_period TEXT DEFAULT ''");
+}
 
 // Seed some initial cars if none exist
 const carCount = db.prepare('SELECT COUNT(*) as cnt FROM cars').get();
 if (carCount.cnt === 0) {
-  const insertCar = db.prepare('INSERT INTO cars (name, description) VALUES (?, ?)');
-  insertCar.run('代車 A', '');
-  insertCar.run('代車 B', '');
-  insertCar.run('代車 C', '');
+  const insertCar = db.prepare('INSERT INTO cars (name, description, sort_order) VALUES (?, ?, ?)');
+  insertCar.run('代車 A', '', 1);
+  insertCar.run('代車 B', '', 2);
+  insertCar.run('代車 C', '', 3);
 }
 
 // --- WebSocket Server ---
-const wss = new WebSocketServer({ server, path: '/ws' });
+const wss = new WebSocketServer({ server, path: '/api/ws' });
 
 function broadcast(message) {
   const data = JSON.stringify(message);
@@ -86,13 +100,27 @@ function broadcast(message) {
   });
 }
 
+function normalizeTireType(value) {
+  return value === 'スタットレス' ? 'スタッドレス' : value;
+}
+
+function normalizeCar(car) {
+  if (!car) {
+    return car;
+  }
+  return {
+    ...car,
+    tire_type: normalizeTireType(car.tire_type),
+  };
+}
+
 wss.on('connection', (ws) => {
   ws.on('error', () => {}); // suppress unhandled error events
 });
 
 // --- Cars API ---
 app.get('/api/cars', (req, res) => {
-  const cars = db.prepare('SELECT * FROM cars ORDER BY id').all();
+  const cars = db.prepare('SELECT * FROM cars ORDER BY sort_order, id').all().map(normalizeCar);
   res.json(cars);
 });
 
@@ -101,14 +129,31 @@ app.post('/api/cars', (req, res) => {
   if (!name || !name.trim()) {
     return res.status(400).json({ error: '車名は必須です' });
   }
+  const maxOrder = db.prepare('SELECT MAX(sort_order) as m FROM cars').get().m ?? 0;
   const result = db.prepare(
-    'INSERT INTO cars (name, description, inspection_expiry, has_etc, tire_type) VALUES (?, ?, ?, ?, ?)'
-  ).run(name.trim(), description, inspection_expiry, has_etc ? 1 : 0, tire_type);
-  const car = db.prepare('SELECT * FROM cars WHERE id = ?').get(result.lastInsertRowid);
+    'INSERT INTO cars (name, description, inspection_expiry, has_etc, tire_type, sort_order) VALUES (?, ?, ?, ?, ?, ?)'
+  ).run(name.trim(), description, inspection_expiry, has_etc ? 1 : 0, tire_type, maxOrder + 1);
+  const car = normalizeCar(db.prepare('SELECT * FROM cars WHERE id = ?').get(result.lastInsertRowid));
   broadcast({ type: 'data_changed', entity: 'cars' });
   res.status(201).json(car);
 });
 
+app.put('/api/cars/reorder', (req, res) => {
+  const { ids } = req.body;
+  if (!Array.isArray(ids) || ids.length === 0) {
+    return res.status(400).json({ error: 'ids は配列で指定してください' });
+  }
+  const updateOrder = db.prepare('UPDATE cars SET sort_order = ? WHERE id = ?');
+  const transaction = db.transaction((orderedIds) => {
+    orderedIds.forEach((id, index) => {
+      updateOrder.run(index + 1, id);
+    });
+  });
+  transaction(ids);
+  broadcast({ type: 'data_changed', entity: 'cars' });
+  res.json({ success: true });
+});
+
 app.put('/api/cars/:id', (req, res) => {
   const { name, description, inspection_expiry, has_etc, tire_type } = req.body;
   if (!name || !name.trim()) {
@@ -120,7 +165,7 @@ app.put('/api/cars/:id', (req, res) => {
   if (result.changes === 0) {
     return res.status(404).json({ error: '車が見つかりません' });
   }
-  const car = db.prepare('SELECT * FROM cars WHERE id = ?').get(req.params.id);
+  const car = normalizeCar(db.prepare('SELECT * FROM cars WHERE id = ?').get(req.params.id));
   broadcast({ type: 'data_changed', entity: 'cars' });
   res.json(car);
 });
@@ -141,7 +186,7 @@ app.get('/api/reservations', (req, res) => {
 });
 
 app.post('/api/reservations', (req, res) => {
-  const { car_id, start_date, end_date, customer_name = '', notes = '' } = req.body;
+  const { car_id, start_date, end_date, customer_name = '', notes = '', start_period = '', end_period = '' } = req.body;
   if (!car_id || !start_date || !end_date) {
     return res.status(400).json({ error: 'car_id, start_date, end_date は必須です' });
   }
@@ -149,15 +194,15 @@ app.post('/api/reservations', (req, res) => {
     return res.status(400).json({ error: '開始日は終了日以前である必要があります' });
   }
   const result = db.prepare(
-    'INSERT INTO reservations (car_id, start_date, end_date, customer_name, notes) VALUES (?, ?, ?, ?, ?)'
-  ).run(car_id, start_date, end_date, customer_name, notes);
+    'INSERT INTO reservations (car_id, start_date, end_date, customer_name, notes, start_period, end_period) VALUES (?, ?, ?, ?, ?, ?, ?)'
+  ).run(car_id, start_date, end_date, customer_name, notes, start_period, end_period);
   const reservation = db.prepare('SELECT * FROM reservations WHERE id = ?').get(result.lastInsertRowid);
   broadcast({ type: 'data_changed', entity: 'reservations' });
   res.status(201).json(reservation);
 });
 
 app.put('/api/reservations/:id', (req, res) => {
-  const { car_id, start_date, end_date, customer_name, notes } = req.body;
+  const { car_id, start_date, end_date, customer_name, notes, start_period, end_period } = req.body;
   if (!car_id || !start_date || !end_date) {
     return res.status(400).json({ error: 'car_id, start_date, end_date は必須です' });
   }
@@ -165,8 +210,8 @@ app.put('/api/reservations/:id', (req, res) => {
     return res.status(400).json({ error: '開始日は終了日以前である必要があります' });
   }
   const result = db.prepare(
-    'UPDATE reservations SET car_id = ?, start_date = ?, end_date = ?, customer_name = ?, notes = ? WHERE id = ?'
-  ).run(car_id, start_date, end_date, customer_name ?? '', notes ?? '', req.params.id);
+    'UPDATE reservations SET car_id = ?, start_date = ?, end_date = ?, customer_name = ?, notes = ?, start_period = ?, end_period = ? WHERE id = ?'
+  ).run(car_id, start_date, end_date, customer_name ?? '', notes ?? '', start_period ?? '', end_period ?? '', req.params.id);
   if (result.changes === 0) {
     return res.status(404).json({ error: '予約が見つかりません' });
   }

car-login.html

@@ -0,0 +1,112 @@
+<!DOCTYPE html> <!-- Gemini ありがとう -->
+<html lang="ja">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>ログイン</title>
+    <style>
+        /* CSS（見た目）の設定 */
+        body {
+            font-family: 'Helvetica Neue', Arial, 'Hiragino Sans', sans-serif;
+            background-color: #f3f4f6;
+            display: flex;
+            justify-content: center;
+            align-items: center;
+            height: 100vh;
+            margin: 0;
+        }
+        .login-box {
+            background-color: #ffffff;
+            padding: 40px;
+            border-radius: 8px;
+            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
+            width: 100%;
+            max-width: 320px;
+            text-align: center;
+        }
+        .login-box h2 {
+            margin: 0 0 20px;
+            color: #333;
+        }
+        .input-group {
+            margin-bottom: 20px;
+            text-align: left;
+        }
+        .input-group label {
+            display: block;
+            font-size: 14px;
+            color: #666;
+            margin-bottom: 8px;
+        }
+        .input-group input {
+            width: 100%;
+            padding: 10px;
+            border: 1px solid #ccc;
+            border-radius: 4px;
+            box-sizing: border-box;
+            font-size: 16px;
+        }
+        .login-btn {
+            width: 100%;
+            padding: 12px;
+            background-color: #2563eb;
+            color: white;
+            border: none;
+            border-radius: 4px;
+            font-size: 16px;
+            cursor: pointer;
+            transition: background-color 0.2s;
+        }
+        .login-btn:hover {
+            background-color: #1d4ed8;
+        }
+        .error-msg {
+            color: #ef4444;
+            font-size: 14px;
+            margin-top: 15px;
+            display: none; /* 初期状態は隠しておく */
+        }
+    </style>
+</head>
+<body>
+
+<div class="login-box">
+    <h2>システムログイン</h2>
+    <form id="loginForm">
+        <div class="input-group">
+            <label for="password">パスワード</label>
+            <input type="password" id="password" required placeholder="パスワードを入力">
+        </div>
+        <button type="submit" class="login-btn">ログイン</button>
+        <div id="errorMsg" class="error-msg">パスワードが違います</div>
+    </form>
+</div>
+
+<script>
+    // 【おまけのUX向上】
+    // もしログイン画面を開いた時点で「site_auth」クッキーが残っている場合、
+    // それは「Nginxにパスワードが違うと弾かれて戻ってきた」証拠です。
+    // エラーメッセージを出して、間違ったクッキーはお掃除しておきます。
+    if (document.cookie.includes('site_auth=')) {
+        document.getElementById('errorMsg').style.display = 'block';
+        document.cookie = "site_auth=; path=/; max-age=0"; // クッキーを削除
+    }
+
+    // フォーム送信時の処理
+    document.getElementById('loginForm').addEventListener('submit', function(e) {
+        e.preventDefault(); 
+
+        // 入力されたパスワードを取得
+        const passwordInput = document.getElementById('password').value;
+
+        // 入力値をそのままCookie（site_auth）としてセットする
+        // encodeURIComponent を挟むことで、記号などが入力されても安全にCookie化します
+        document.cookie = "site_auth=" + encodeURIComponent(passwordInput) + "; path=/; max-age=86400";
+        
+        // Nginx（トップページ）へリクエストを送る
+        window.location.href = "/";
+    });
+</script>
+
+</body>
+</html>

frontend/src/api.js

@@ -1,8 +1,13 @@
 const API_BASE = (import.meta.env.VITE_API_BASE_URL ?? '') + '/api';
 
 async function request(path, options = {}) {
+  const hasBody = options.body !== undefined;
   const res = await fetch(`${API_BASE}${path}`, {
-    headers: { 'Content-Type': 'application/json' },
+    credentials: 'include',
+    headers: {
+      ...(hasBody ? { 'Content-Type': 'application/json' } : {}),
+      ...(options.headers ?? {}),
+    },
     ...options,
   });
   if (!res.ok) {
@@ -18,6 +23,7 @@ export const api = {
   createCar: (data) => request('/cars', { method: 'POST', body: JSON.stringify(data) }),
   updateCar: (id, data) => request(`/cars/${id}`, { method: 'PUT', body: JSON.stringify(data) }),
   deleteCar: (id) => request(`/cars/${id}`, { method: 'DELETE' }),
+  reorderCars: (ids) => request('/cars/reorder', { method: 'PUT', body: JSON.stringify({ ids }) }),
 
   // Reservations
   getReservations: () => request('/reservations'),

frontend/src/components/CarManagement.jsx

@@ -1,4 +1,4 @@
-import { useState, useEffect, useCallback } from 'react';
+import { useState, useEffect, useCallback, useRef } from 'react';
 import { api } from '../api.js';
 import { isInspectionExpirySoon } from '../utils/carUtils.js';
 import styles from './CarManagement.module.css';
@@ -20,6 +20,8 @@ export default function CarManagement({ reloadKey = 0 }) {
   const [editEtc, setEditEtc] = useState(false);
   const [editTire, setEditTire] = useState('ノーマル');
   const [submitting, setSubmitting] = useState(false);
+  const [dragOverIdx, setDragOverIdx] = useState(null);
+  const dragSrcIdx = useRef(null);
 
   const loadCars = useCallback(async () => {
     try {
@@ -116,6 +118,50 @@ export default function CarManagement({ reloadKey = 0 }) {
     }
   };
 
+  const applyReorder = async (newCars) => {
+    setCars(newCars);
+    try {
+      await api.reorderCars(newCars.map((c) => c.id));
+    } catch (e) {
+      setError(e.message);
+      await loadCars();
+    }
+  };
+
+  const handleReorder = async (index, direction) => {
+    const swapIndex = index + direction;
+    if (swapIndex < 0 || swapIndex >= cars.length) return;
+    const newCars = [...cars];
+    [newCars[index], newCars[swapIndex]] = [newCars[swapIndex], newCars[index]];
+    await applyReorder(newCars);
+  };
+
+  const handleDragStart = (index) => {
+    dragSrcIdx.current = index;
+  };
+
+  const handleDragOver = (e, index) => {
+    e.preventDefault();
+    setDragOverIdx(index);
+  };
+
+  const handleDragEnd = () => {
+    setDragOverIdx(null);
+    dragSrcIdx.current = null;
+  };
+
+  const handleDrop = async (e, dropIndex) => {
+    e.preventDefault();
+    const srcIndex = dragSrcIdx.current;
+    setDragOverIdx(null);
+    dragSrcIdx.current = null;
+    if (srcIndex === null || srcIndex === dropIndex) return;
+    const newCars = [...cars];
+    const [moved] = newCars.splice(srcIndex, 1);
+    newCars.splice(dropIndex, 0, moved);
+    await applyReorder(newCars);
+  };
+
   return (
     <div className={styles.container}>
       <h2 className={styles.heading}>代車管理</h2>
@@ -169,7 +215,7 @@ export default function CarManagement({ reloadKey = 0 }) {
                 onChange={(e) => setNewCarTire(e.target.value)}
               >
                 <option value="ノーマル">ノーマル</option>
-                <option value="スタットレス">スタットレス</option>
+                <option value="スタッドレス">スタッドレス</option>
               </select>
             </label>
             <button type="submit" className={styles.btnPrimary} disabled={submitting || !newCarName.trim()}>
@@ -187,7 +233,7 @@ export default function CarManagement({ reloadKey = 0 }) {
           <table className={styles.table}>
             <thead>
               <tr>
-                <th>ID</th>
+                <th>順番</th>
                 <th>車名</th>
                 <th>備考</th>
                 <th>車検満了日</th>
@@ -202,9 +248,34 @@ export default function CarManagement({ reloadKey = 0 }) {
                   <td colSpan={7} className={styles.empty}>代車がありません</td>
                 </tr>
               )}
-              {cars.map((car) => (
-                <tr key={car.id}>
-                  <td className={styles.idCell}>{car.id}</td>
+              {cars.map((car, carIdx) => (
+                <tr
+                  key={car.id}
+                  draggable
+                  onDragStart={() => handleDragStart(carIdx)}
+                  onDragOver={(e) => handleDragOver(e, carIdx)}
+                  onDragEnd={handleDragEnd}
+                  onDrop={(e) => handleDrop(e, carIdx)}
+                  className={dragOverIdx === carIdx ? styles.dragOver : ''}
+                >
+                  <td className={styles.idCell}>
+                    <div className={styles.orderBtns}>
+                      <button
+                        className={styles.btnOrder}
+                        onClick={() => handleReorder(carIdx, -1)}
+                        disabled={carIdx === 0}
+                        title="上に移動"
+                        aria-label="上に移動"
+                      >▲</button>
+                      <button
+                        className={styles.btnOrder}
+                        onClick={() => handleReorder(carIdx, 1)}
+                        disabled={carIdx === cars.length - 1}
+                        title="下に移動"
+                        aria-label="下に移動"
+                      >▼</button>
+                    </div>
+                  </td>
                   {editingId === car.id ? (
                     <>
                       <td>
@@ -248,7 +319,7 @@ export default function CarManagement({ reloadKey = 0 }) {
                           onChange={(e) => setEditTire(e.target.value)}
                         >
                           <option value="ノーマル">ノーマル</option>
-                          <option value="スタットレス">スタットレス</option>
+                          <option value="スタッドレス">スタッドレス</option>
                         </select>
                       </td>
                       <td className={styles.actions}>
@@ -275,8 +346,8 @@ export default function CarManagement({ reloadKey = 0 }) {
                             : car.inspection_expiry
                           : '-'}
                       </td>
-                      <td>{car.has_etc ? '🛣️ あり' : 'なし'}</td>
-                      <td>{car.tire_type === 'スタットレス' ? '❄️ スタットレス' : 'ノーマル'}</td>
+                      <td>{car.has_etc ? <span className={styles.badgeEtc}>ETC</span> : 'なし'}</td>
+                      <td>{car.tire_type === 'スタッドレス' ? <span className={styles.badgeStudless}>スタッドレス</span> : 'ノーマル'}</td>
                       <td className={styles.actions}>
                         <button className={styles.btnEdit} onClick={() => startEdit(car)}>
                           編集

frontend/src/components/CarManagement.module.css

@@ -79,7 +79,7 @@
   background: white;
   border-radius: 10px;
   box-shadow: 0 1px 4px rgba(0,0,0,0.08);
-  overflow: hidden;
+  overflow-x: auto;
 }
 
 .table {
@@ -111,9 +111,46 @@
   background: #fafafa;
 }
 
+.table tbody tr[draggable] {
+  cursor: grab;
+}
+
+.dragOver {
+  background: #eff6ff !important;
+  outline: 2px dashed #1a56db;
+  outline-offset: -2px;
+}
+
 .idCell {
   color: #9ca3af;
-  width: 50px;
+  width: 80px;
+}
+
+.orderBtns {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+  align-items: center;
+}
+
+.btnOrder {
+  background: #f3f4f6;
+  border: 1px solid #d1d5db;
+  color: #374151;
+  padding: 1px 8px;
+  border-radius: 4px;
+  font-size: 10px;
+  line-height: 1.4;
+  transition: background 0.15s;
+}
+
+.btnOrder:hover:not(:disabled) {
+  background: #e5e7eb;
+}
+
+.btnOrder:disabled {
+  opacity: 0.3;
+  cursor: not-allowed;
 }
 
 .descCell {
@@ -218,3 +255,25 @@
   font-weight: 600;
 }
 
+.badgeEtc {
+  display: inline-block;
+  background: #7c3aed;
+  color: #fff;
+  font-size: 11px;
+  font-weight: 700;
+  padding: 2px 7px;
+  border-radius: 4px;
+  letter-spacing: 0.04em;
+}
+
+.badgeStudless {
+  display: inline-block;
+  background: #0ea5e9;
+  color: #fff;
+  font-size: 11px;
+  font-weight: 700;
+  padding: 2px 7px;
+  border-radius: 4px;
+  letter-spacing: 0.03em;
+}
+

frontend/src/components/ReservationModal.jsx

@@ -2,12 +2,20 @@ import { useState, useEffect } from 'react';
 import { format } from 'date-fns';
 import styles from './ReservationModal.module.css';
 
+const PERIOD_OPTIONS = [
+  { value: '', label: '指定なし' },
+  { value: '午前', label: '午前' },
+  { value: '午後', label: '午後' },
+];
+
 export default function ReservationModal({ cars, reservation, onSave, onDelete, onClose }) {
   const isEdit = !!reservation?.id;
 
   const [carId, setCarId] = useState('');
   const [startDate, setStartDate] = useState('');
+  const [startPeriod, setStartPeriod] = useState('');
   const [endDate, setEndDate] = useState('');
+  const [endPeriod, setEndPeriod] = useState('');
   const [customerName, setCustomerName] = useState('');
   const [notes, setNotes] = useState('');
   const [submitting, setSubmitting] = useState(false);
@@ -16,7 +24,9 @@ export default function ReservationModal({ cars, reservation, onSave, onDelete,
     if (reservation) {
       setCarId(String(reservation.car_id || (cars[0]?.id ?? '')));
       setStartDate(reservation.start_date || format(new Date(), 'yyyy-MM-dd'));
+      setStartPeriod(reservation.start_period || '');
       setEndDate(reservation.end_date || format(new Date(), 'yyyy-MM-dd'));
+      setEndPeriod(reservation.end_period || '');
       setCustomerName(reservation.customer_name || '');
       setNotes(reservation.notes || '');
     }
@@ -34,7 +44,9 @@ export default function ReservationModal({ cars, reservation, onSave, onDelete,
       await onSave({
         car_id: Number(carId),
         start_date: startDate,
+        start_period: startPeriod,
         end_date: endDate,
+        end_period: endPeriod,
         customer_name: customerName,
         notes,
       });
@@ -90,6 +102,21 @@ export default function ReservationModal({ cars, reservation, onSave, onDelete,
                 required
               />
             </div>
+            <div className={styles.field}>
+              <label className={styles.label}>開始時間帯</label>
+              <select
+                className={styles.select}
+                value={startPeriod}
+                onChange={(e) => setStartPeriod(e.target.value)}
+              >
+                {PERIOD_OPTIONS.map((o) => (
+                  <option key={o.value} value={o.value}>{o.label}</option>
+                ))}
+              </select>
+            </div>
+          </div>
+
+          <div className={styles.fieldRow}>
             <div className={styles.field}>
               <label className={styles.label}>終了日 <span className={styles.required}>*</span></label>
               <input
@@ -101,6 +128,18 @@ export default function ReservationModal({ cars, reservation, onSave, onDelete,
                 required
               />
             </div>
+            <div className={styles.field}>
+              <label className={styles.label}>終了時間帯</label>
+              <select
+                className={styles.select}
+                value={endPeriod}
+                onChange={(e) => setEndPeriod(e.target.value)}
+              >
+                {PERIOD_OPTIONS.map((o) => (
+                  <option key={o.value} value={o.value}>{o.label}</option>
+                ))}
+              </select>
+            </div>
           </div>
 
           <div className={styles.field}>

frontend/src/components/ScheduleView.jsx

@@ -1,16 +1,17 @@
 import { useState, useEffect, useRef, useCallback } from 'react';
-import { format, addDays, startOfWeek, parseISO, differenceInDays, isSameDay } from 'date-fns';
+import { format, addDays, startOfWeek, parseISO, differenceInDays } from 'date-fns';
 import { ja } from 'date-fns/locale';
 import { api } from '../api.js';
-import { isInspectionExpirySoon } from '../utils/carUtils.js';
+import { isInspectionExpirySoon, formatDateRange, formatReservationTooltip } from '../utils/carUtils.js';
 import ReservationModal from './ReservationModal.jsx';
 import styles from './ScheduleView.module.css';
 
-const CELL_WIDTH = 52; // px per day column
-const ROW_HEIGHT = 52; // px per car row
+const CELL_WIDTH = 52; // px per half-day slot (午前 or 午後)
+const ROW_HEIGHT = 64; // px per car row
 const LABEL_WIDTH = 140; // px for car name column
-const HEADER_HEIGHT = 72; // px for the date header row
+const HEADER_HEIGHT = 80; // px for the date header row (top: date+dow, bottom: 午前/午後)
 const DAYS_SHOWN = 21; // number of days to show
+const HALF_SLOTS = DAYS_SHOWN * 2; // total half-day slot columns (AM + PM per day)
 
 // Detect touch-primary device to disable mouse-only drag & drop
 const isTouchDevice = typeof window !== 'undefined' &&
@@ -94,14 +95,15 @@ export default function ScheduleView({ reloadKey = 0 }) {
   const goToday = () => setViewStart(startOfWeek(new Date(), { weekStartsOn: 1 }));
 
   // --- Grid position helpers ---
-  // Given a mouse clientX within the grid scroll area, get the day index (0-based)
-  const getColFromX = useCallback((clientX) => {
+  // Given a mouse clientX within the grid scroll area, get the half-day slot index (0-based)
+  // Each slot is CELL_WIDTH wide; even slots = 午前, odd slots = 午後
+  const getSlotFromX = useCallback((clientX) => {
     if (!gridRef.current) return -1;
     const rect = gridRef.current.getBoundingClientRect();
     const scrollLeft = gridRef.current.scrollLeft;
     const x = clientX - rect.left + scrollLeft - LABEL_WIDTH;
     if (x < 0) return -1;
-    return Math.floor(x / CELL_WIDTH);
+    return Math.min(Math.floor(x / CELL_WIDTH), HALF_SLOTS - 1);
   }, []);
 
   const getRowFromY = useCallback((clientY) => {
@@ -114,59 +116,62 @@ export default function ScheduleView({ reloadKey = 0 }) {
   }, []);
 
   // --- Cell drag to create ---
-  const handleCellMouseDown = (e, carId, dateStr) => {
+  const handleCellMouseDown = (e, carId, slot) => {
     if (isTouchDevice) return; // drag-to-create is mouse-only
     if (e.button !== 0) return;
     e.preventDefault();
-    setCreating({ carId, startDateStr: dateStr, endDateStr: dateStr });
+    setCreating({ carId, startSlot: slot, endSlot: slot });
   };
 
   // --- Cell tap to create (touch devices) ---
   const handleCellClick = useCallback((e, carId) => {
     if (!isTouchDevice) return;
-    const col = getColFromX(e.clientX);
-    if (col >= 0 && col < DAYS_SHOWN) {
-      const dateStr = dateToStr(dates[col]);
+    const slot = getSlotFromX(e.clientX);
+    if (slot >= 0 && slot < HALF_SLOTS) {
+      const dayIdx = Math.floor(slot / 2);
+      const dateStr = dateToStr(dates[dayIdx]);
+      const period = slot % 2 === 0 ? '午前' : '午後';
       setModal({
         mode: 'create',
-        prefill: { car_id: carId, start_date: dateStr, end_date: dateStr },
+        prefill: { car_id: carId, start_date: dateStr, start_period: period, end_date: dateStr, end_period: period },
       });
     }
-  }, [dates, getColFromX]);
+  }, [dates, getSlotFromX]);
 
   const handleGridMouseMove = useCallback((e) => {
     if (creating) {
-      const col = getColFromX(e.clientX);
-      if (col >= 0 && col < DAYS_SHOWN) {
-        const hoveredDate = dateToStr(dates[col]);
+      const slot = getSlotFromX(e.clientX);
+      if (slot >= 0 && slot < HALF_SLOTS) {
         setCreating((prev) => {
           if (!prev) return null;
-          // Ensure start <= end
-          const s = prev.startDateStr;
-          const h = hoveredDate;
+          const s = prev.startSlot;
+          const h = slot;
           return {
             ...prev,
-            endDateStr: h >= s ? h : s,
-            startDateStr: h < s ? h : prev.startDateStr,
+            endSlot: h >= s ? h : s,
+            startSlot: h < s ? h : prev.startSlot,
           };
         });
       }
     }
 
     if (moving) {
-      const col = getColFromX(e.clientX);
+      const slot = getSlotFromX(e.clientX);
       const row = getRowFromY(e.clientY);
       movingRef.current = { ...movingRef.current };
 
-      if (col >= 0 && col < DAYS_SHOWN) {
-        const newStartCol = Math.max(0, col - moving.grabDayOffset);
-        const duration = differenceInDays(
-          parseISO(moving.reservation.end_date),
-          parseISO(moving.reservation.start_date)
-        );
-        const clampedStartCol = Math.min(newStartCol, DAYS_SHOWN - 1 - duration);
-        const newStartDate = dateToStr(dates[Math.max(0, clampedStartCol)]);
-        const newEndDate = dateToStr(addDays(dates[Math.max(0, clampedStartCol)], duration));
+      if (slot >= 0 && slot < HALF_SLOTS) {
+        const durationSlots = moving.durationSlots;
+        const newStartSlot = Math.max(0, slot - moving.grabSlotOffset);
+        const clampedStartSlot = Math.min(newStartSlot, HALF_SLOTS - 1 - durationSlots);
+        const clampedEndSlot = clampedStartSlot + durationSlots;
+
+        const newStartDayIdx = Math.max(0, Math.min(Math.floor(clampedStartSlot / 2), DAYS_SHOWN - 1));
+        const newEndDayIdx = Math.max(0, Math.min(Math.floor(clampedEndSlot / 2), DAYS_SHOWN - 1));
+        const newStartDate = dateToStr(dates[newStartDayIdx]);
+        const newStartPeriod = clampedStartSlot % 2 === 0 ? '午前' : '午後';
+        const newEndDate = dateToStr(dates[newEndDayIdx]);
+        const newEndPeriod = clampedEndSlot % 2 === 0 ? '午前' : '午後';
 
         let newCarId = moving.currentCarId;
         if (row >= 0 && row < cars.length) {
@@ -176,54 +181,56 @@ export default function ScheduleView({ reloadKey = 0 }) {
         setMoving((prev) => prev ? {
           ...prev,
           currentCarId: newCarId,
+          currentStartSlot: clampedStartSlot,
           currentStartDate: newStartDate,
+          currentStartPeriod: newStartPeriod,
           currentEndDate: newEndDate,
-          col: clampedStartCol,
+          currentEndPeriod: newEndPeriod,
+          col: clampedStartSlot,
           row: row >= 0 && row < cars.length ? row : prev.row,
         } : null);
       }
     }
-  }, [creating, moving, dates, cars, getColFromX, getRowFromY]);
+  }, [creating, moving, dates, cars, getSlotFromX, getRowFromY]);
 
   const handleGridMouseUp = useCallback(async (e) => {
     if (creating) {
-      const { carId, startDateStr, endDateStr } = creating;
+      const { carId, startSlot, endSlot } = creating;
       setCreating(null);
+      const startDayIdx = Math.max(0, Math.min(Math.floor(startSlot / 2), DAYS_SHOWN - 1));
+      const endDayIdx = Math.max(0, Math.min(Math.floor(endSlot / 2), DAYS_SHOWN - 1));
       // Open modal to confirm/fill details
       setModal({
         mode: 'create',
         prefill: {
           car_id: carId,
-          start_date: startDateStr,
-          end_date: endDateStr,
+          start_date: dateToStr(dates[startDayIdx]),
+          start_period: startSlot % 2 === 0 ? '午前' : '午後',
+          end_date: dateToStr(dates[endDayIdx]),
+          end_period: endSlot % 2 === 0 ? '午前' : '午後',
         },
       });
     }
 
     if (moving) {
-      const { reservation, currentCarId, currentStartDate, currentEndDate } = moving;
+      const { reservation, currentCarId, origStartSlot, currentStartSlot, currentStartDate, currentStartPeriod, currentEndDate, currentEndPeriod } = moving;
       setMoving(null);
       movingRef.current = null;
 
-      const duration = differenceInDays(
-        parseISO(reservation.end_date),
-        parseISO(reservation.start_date)
-      );
-      const newEndDate = currentEndDate ||
-        dateToStr(addDays(parseISO(currentStartDate), duration));
-
       // Only update if something changed
       if (
         currentCarId !== reservation.car_id ||
-        currentStartDate !== reservation.start_date
+        currentStartSlot !== origStartSlot
       ) {
         try {
           await api.updateReservation(reservation.id, {
             car_id: currentCarId,
             start_date: currentStartDate,
-            end_date: newEndDate,
+            end_date: currentEndDate,
             customer_name: reservation.customer_name,
             notes: reservation.notes,
+            start_period: currentStartPeriod,
+            end_period: currentEndPeriod,
           });
           await loadData();
         } catch (err) {
@@ -232,7 +239,7 @@ export default function ScheduleView({ reloadKey = 0 }) {
         }
       }
     }
-  }, [creating, moving, loadData]);
+  }, [creating, moving, dates, loadData]);
 
   useEffect(() => {
     window.addEventListener('mousemove', handleGridMouseMove);
@@ -263,18 +270,28 @@ export default function ScheduleView({ reloadKey = 0 }) {
     if (e.button !== 0) return;
     e.preventDefault();
 
-    const col = getColFromX(e.clientX);
-    const startCol = Math.max(0, dates.findIndex((d) => dateToStr(d) === reservation.start_date));
-    const grabOffset = col >= 0 ? col - startCol : 0;
+    const slot = getSlotFromX(e.clientX);
+    // Compute the reservation's start/end slot within the current view
+    const startDayCol = Math.max(0, differenceInDays(parseISO(reservation.start_date), viewStart));
+    const endDayCol = Math.max(0, differenceInDays(parseISO(reservation.end_date), viewStart));
+    const startSlot = startDayCol * 2 + (reservation.start_period === '午後' ? 1 : 0);
+    const endSlot = endDayCol * 2 + (reservation.end_period === '午前' ? 0 : 1);
+    const durationSlots = Math.max(0, endSlot - startSlot);
+    const grabOffset = slot >= 0 ? slot - startSlot : 0;
     const carRow = cars.findIndex((c) => c.id === reservation.car_id);
 
     setMoving({
       reservation,
-      grabDayOffset: Math.max(0, grabOffset),
+      grabSlotOffset: Math.max(0, grabOffset),
+      durationSlots,
+      origStartSlot: startSlot,
       currentCarId: reservation.car_id,
+      currentStartSlot: startSlot,
       currentStartDate: reservation.start_date,
+      currentStartPeriod: reservation.start_period || '午前',
       currentEndDate: reservation.end_date,
-      col: startCol,
+      currentEndPeriod: reservation.end_period || '午後',
+      col: startSlot,
       row: carRow,
     });
   };
@@ -313,26 +330,26 @@ export default function ScheduleView({ reloadKey = 0 }) {
     (r) => r.end_date >= viewStartStr && r.start_date <= viewEndStr
   );
 
-  // For each reservation, calculate its left/width in the grid
+  // For each reservation, calculate its left/width in the grid (accounting for 午前/午後 periods)
   function getReservationLayout(r) {
     const rStart = r.start_date < viewStartStr ? viewStartStr : r.start_date;
     const rEnd = r.end_date > viewEndStr ? viewEndStr : r.end_date;
-    const startCol = differenceInDays(parseISO(rStart), viewStart);
-    const endCol = differenceInDays(parseISO(rEnd), viewStart);
-    const left = startCol * CELL_WIDTH;
-    const width = (endCol - startCol + 1) * CELL_WIDTH;
-    return { left, width, startCol, endCol };
+    const startDayCol = differenceInDays(parseISO(rStart), viewStart);
+    const endDayCol = differenceInDays(parseISO(rEnd), viewStart);
+    // Even slot = 午前, odd slot = 午後; empty period treated as 午前 for start, 午後 for end
+    const startSlot = startDayCol * 2 + (r.start_period === '午後' ? 1 : 0);
+    const endSlot = endDayCol * 2 + (r.end_period === '午前' ? 0 : 1);
+    const left = startSlot * CELL_WIDTH;
+    const width = (endSlot - startSlot + 1) * CELL_WIDTH;
+    return { left, width, startSlot, endSlot };
   }
 
   // Create ghost for currently moving reservation
   const movingGhost = moving ? (() => {
-    const duration = differenceInDays(
-      parseISO(moving.reservation.end_date),
-      parseISO(moving.reservation.start_date)
-    );
     const col = moving.col ?? 0;
+    const durationSlots = moving.durationSlots;
     const left = col * CELL_WIDTH;
-    const width = (duration + 1) * CELL_WIDTH;
+    const width = (durationSlots + 1) * CELL_WIDTH;
     return { col, left, width, row: moving.row };
   })() : null;
 
@@ -373,7 +390,6 @@ export default function ScheduleView({ reloadKey = 0 }) {
       </div>
 
       {error && <div className={styles.error}>エラー: {error}</div>}
-      {loading && <div className={styles.loading}>読み込み中...</div>}
 
       {/* Grid */}
       <div
@@ -383,9 +399,17 @@ export default function ScheduleView({ reloadKey = 0 }) {
           // don't cancel on leave — handled by global events
         }}
       >
+        {loading && (
+          <div
+            className={styles.loadingOverlay}
+            style={{ height: HEADER_HEIGHT }}
+          >
+            読み込み中...
+          </div>
+        )}
         <div
           className={styles.grid}
-          style={{ width: LABEL_WIDTH + DAYS_SHOWN * CELL_WIDTH }}
+          style={{ width: LABEL_WIDTH + DAYS_SHOWN * 2 * CELL_WIDTH }}
         >
           {/* Header row */}
           <div className={styles.headerRow} style={{ height: HEADER_HEIGHT }}>
@@ -394,7 +418,7 @@ export default function ScheduleView({ reloadKey = 0 }) {
               className={styles.cornerCell}
               style={{ width: LABEL_WIDTH, height: HEADER_HEIGHT }}
             />
-            {/* Date headers */}
+            {/* Date headers — each day spans two half-day slots (午前 + 午後) */}
             {dates.map((date) => {
               const ds = dateToStr(date);
               const isToday = ds === todayStr;
@@ -403,11 +427,17 @@ export default function ScheduleView({ reloadKey = 0 }) {
               return (
                 <div
                   key={ds}
-                  className={`${styles.dateHeader} ${isToday ? styles.todayHeader : ''} ${isWeekend ? styles.weekendHeader : ''}`}
-                  style={{ width: CELL_WIDTH, height: HEADER_HEIGHT }}
+                  className={`${styles.dateHeaderGroup} ${isToday ? styles.todayHeader : ''} ${isWeekend ? styles.weekendHeader : ''}`}
+                  style={{ width: CELL_WIDTH * 2, height: HEADER_HEIGHT }}
                 >
-                  <span className={styles.dateDay}>{format(date, 'd')}</span>
-                  <span className={`${styles.dateDow} ${isWeekend ? styles.weekendDow : ''}`}>{dow}</span>
+                  <div className={styles.dateHeaderTop}>
+                    <span className={styles.dateDay}>{format(date, 'd')}</span>
+                    <span className={`${styles.dateDow} ${isWeekend ? styles.weekendDow : ''}`}>{dow}</span>
+                  </div>
+                  <div className={styles.dateHeaderAmPm}>
+                    <div className={styles.periodLabel}>午前</div>
+                    <div className={styles.periodLabel}>午後</div>
+                  </div>
                 </div>
               );
             })}
@@ -425,10 +455,8 @@ export default function ScheduleView({ reloadKey = 0 }) {
             const isCreatingRow = creating && creating.carId === car.id;
             let creatingLeft = 0, creatingWidth = 0;
             if (isCreatingRow) {
-              const startCol = differenceInDays(parseISO(creating.startDateStr), viewStart);
-              const endCol = differenceInDays(parseISO(creating.endDateStr), viewStart);
-              creatingLeft = Math.max(0, startCol) * CELL_WIDTH;
-              creatingWidth = (Math.min(endCol, DAYS_SHOWN - 1) - Math.max(0, startCol) + 1) * CELL_WIDTH;
+              creatingLeft = Math.max(0, creating.startSlot) * CELL_WIDTH;
+              creatingWidth = (Math.min(creating.endSlot, HALF_SLOTS - 1) - Math.max(0, creating.startSlot) + 1) * CELL_WIDTH;
             }
 
             // Ghost reservation for this row
@@ -443,35 +471,42 @@ export default function ScheduleView({ reloadKey = 0 }) {
                   title={car.description || car.name}
                 >
                   <span className={styles.carDot} style={{ background: color.border }} />
-                  <span className={styles.carName}>{car.name}</span>
-                  <span className={styles.carIcons}>
-                    {car.has_etc ? <span title="ETC あり">🛣️</span> : null}
-                    {car.tire_type === 'スタットレス' ? <span title="スタットレスタイヤ">❄️</span> : null}
+                  <span className={styles.carLabelContent}>
+                    <span className={styles.carName}>{car.name}</span>
+                    <span className={styles.carBadges}>
+                      {car.has_etc ? <span className={styles.badgeEtc}>ETC</span> : null}
+                      {car.tire_type === 'スタッドレス' ? <span className={styles.badgeStudless}>スタッドレス</span> : null}
+                    </span>
                     {isInspectionExpirySoon(car.inspection_expiry) ? (
-                      <span title={`車検満了日: ${car.inspection_expiry}（まもなく期限切れ）`}>⚠️</span>
+                      <span
+                        className={`${styles.badgeWarn} ${styles.badgeWarnWide}`}
+                        title={`車検満了日: ${car.inspection_expiry}（まもなく期限切れ）`}
+                      >
+                        ⚠️ 車検
+                      </span>
                     ) : null}
                   </span>
                 </div>
 
-                {/* Day cells */}
+                {/* Day cells — two per day (午前 then 午後) */}
                 <div
                   className={styles.cellArea}
-                  style={{ width: DAYS_SHOWN * CELL_WIDTH, height: ROW_HEIGHT }}
+                  style={{ width: DAYS_SHOWN * 2 * CELL_WIDTH, height: ROW_HEIGHT }}
                   onClick={(e) => handleCellClick(e, car.id)}
                 >
-                  {dates.map((date) => {
+                  {dates.flatMap((date, dayIdx) => {
                     const ds = dateToStr(date);
                     const isToday = ds === todayStr;
                     const dow = format(date, 'E', { locale: ja });
                     const isWeekend = dow === '土' || dow === '日';
-                    return (
+                    return ['午前', '午後'].map((period, pIdx) => (
                       <div
-                        key={ds}
-                        className={`${styles.cell} ${isToday ? styles.todayCell : ''} ${isWeekend ? styles.weekendCell : ''} ${isTouchDevice ? styles.cellTouch : ''}`}
+                        key={`${ds}-${period}`}
+                        className={`${styles.cell} ${isToday ? styles.todayCell : ''} ${isWeekend ? styles.weekendCell : ''} ${isTouchDevice ? styles.cellTouch : ''} ${pIdx === 1 ? styles.cellDayEnd : ''}`}
                         style={{ width: CELL_WIDTH, height: ROW_HEIGHT }}
-                        onMouseDown={(e) => handleCellMouseDown(e, car.id, ds)}
+                        onMouseDown={(e) => handleCellMouseDown(e, car.id, dayIdx * 2 + pIdx)}
                       />
-                    );
+                    ));
                   })}
 
                   {/* Creating highlight */}
@@ -538,14 +573,14 @@ export default function ScheduleView({ reloadKey = 0 }) {
                           e.stopPropagation();
                           setContextMenu({ x: e.clientX, y: e.clientY, reservation: r });
                         }}
-                        title={`${r.customer_name || '予約'}\n${r.start_date} 〜 ${r.end_date}${r.notes ? '\n' + r.notes : ''}`}
+                        title={formatReservationTooltip(r)}
                       >
                         <span className={styles.blockText}>
                           {r.customer_name || '予約'}
                         </span>
                         {width > 80 && (
                           <span className={styles.blockDates}>
-                            {r.start_date.slice(5)} 〜 {r.end_date.slice(5)}
+                            {formatDateRange(r.start_date, r.start_period, r.end_date, r.end_period)}
                           </span>
                         )}
                       </div>

frontend/src/components/ScheduleView.module.css

@@ -74,6 +74,23 @@
   font-size: 14px;
 }
 
+.loadingOverlay {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  z-index: 40;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  color: #4b5563;
+  font-size: 14px;
+  font-weight: 600;
+  background: rgba(255, 255, 255, 0.92);
+  border-bottom: 2px solid #d1d5db;
+  pointer-events: none;
+}
+
 /* Grid wrapper - scrollable */
 .gridWrapper {
   flex: 1;
@@ -107,6 +124,47 @@
   z-index: 30;
 }
 
+.dateHeaderGroup {
+  flex-shrink: 0;
+  display: flex;
+  flex-direction: column;
+  align-items: stretch;
+  border-right: 2px solid #d1d5db;
+  background: white;
+  overflow: hidden;
+}
+
+.dateHeaderTop {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 2px;
+  flex: 1;
+  border-bottom: 1px solid #e5e7eb;
+}
+
+.dateHeaderAmPm {
+  display: flex;
+  height: 22px;
+  flex-shrink: 0;
+}
+
+.periodLabel {
+  flex: 1;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 9px;
+  font-weight: 500;
+  color: #9ca3af;
+  letter-spacing: 0.03em;
+}
+
+.periodLabel:first-child {
+  border-right: 1px solid #f0f0f0;
+}
+
 .dateHeader {
   flex-shrink: 0;
   display: flex;
@@ -157,9 +215,9 @@
 .carLabel {
   flex-shrink: 0;
   display: flex;
-  align-items: center;
+  align-items: flex-start;
   gap: 8px;
-  padding: 0 12px;
+  padding: 6px 12px;
   border-right: 2px solid #d1d5db;
   background: white;
   position: sticky;
@@ -173,24 +231,73 @@
   height: 10px;
   border-radius: 50%;
   flex-shrink: 0;
+  align-self: center;
+}
+
+.carLabelContent {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+  min-width: 0;
+  flex: 1;
 }
 
 .carName {
   font-size: 13px;
   font-weight: 600;
   color: #374151;
-  white-space: nowrap;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  flex: 1;
-  min-width: 0;
+  width: 100%;
+  white-space: normal;
+  overflow-wrap: anywhere;
+  word-break: break-word;
+  line-height: 1.2;
 }
 
-.carIcons {
+.carBadges {
   display: flex;
-  gap: 2px;
-  font-size: 14px;
-  flex-shrink: 0;
+  gap: 4px;
+  flex-wrap: nowrap;
+}
+
+.badgeEtc {
+  background: #7c3aed;
+  color: #fff;
+  font-size: 10px;
+  font-weight: 700;
+  padding: 1px 5px;
+  border-radius: 4px;
+  white-space: nowrap;
+  letter-spacing: 0.03em;
+}
+
+.badgeStudless {
+  background: #0ea5e9;
+  color: #fff;
+  font-size: 10px;
+  font-weight: 700;
+  padding: 1px 5px;
+  border-radius: 4px;
+  white-space: nowrap;
+  letter-spacing: 0.03em;
+}
+
+.badgeWarn {
+  background: #d97706;
+  color: #fff;
+  font-size: 10px;
+  font-weight: 700;
+  padding: 1px 5px;
+  border-radius: 4px;
+  white-space: nowrap;
+  letter-spacing: 0.03em;
+  cursor: default;
+}
+
+.badgeWarnWide {
+  display: flex;
+  width: 108%;
+  justify-content: center;
+  box-sizing: border-box;
 }
 
 /* Cell area */
@@ -215,6 +322,10 @@
   background: rgba(26, 86, 219, 0.04);
 }
 
+.cellDayEnd {
+  border-right: 1px solid #d1d5db;
+}
+
 .todayCell {
   background: rgba(59, 130, 246, 0.06);
 }

frontend/src/components/TimelineView.jsx

@@ -2,6 +2,7 @@ import { useState, useEffect, useRef, useCallback } from 'react';
 import { format, addDays, addMonths, startOfMonth, endOfMonth, parseISO, differenceInDays } from 'date-fns';
 import { ja } from 'date-fns/locale';
 import { api } from '../api.js';
+import { formatDateRange, formatReservationTooltip } from '../utils/carUtils.js';
 import ReservationModal from './ReservationModal.jsx';
 import styles from './TimelineView.module.css';
 
@@ -190,10 +191,17 @@ export default function TimelineView({ reloadKey = 0 }) {
       </div>
 
       {error && <div className={styles.error}>エラー: {error}</div>}
-      {loading && <div className={styles.loading}>読み込み中...</div>}
 
       {/* Timeline grid */}
       <div className={styles.gridWrapper} ref={gridRef}>
+        {loading && (
+          <div
+            className={styles.loadingOverlay}
+            style={{ height: HEADER_HEIGHT }}
+          >
+            読み込み中...
+          </div>
+        )}
         <div className={styles.grid} style={{ width: totalWidth }}>
           {/* Sticky header: month/day labels */}
           <div className={styles.headerRow} style={{ height: HEADER_HEIGHT }}>
@@ -280,14 +288,14 @@ export default function TimelineView({ reloadKey = 0 }) {
                       e.stopPropagation();
                       setContextMenu({ x: e.clientX, y: e.clientY, reservation: r });
                     }}
-                    title={`${r.customer_name || '予約'}\n${r.start_date} 〜 ${r.end_date}${r.notes ? '\n' + r.notes : ''}`}
+                    title={formatReservationTooltip(r)}
                   >
                     <span className={styles.barText}>
                       {r.customer_name || '予約'}
                     </span>
                     {width > 80 && (
                       <span className={styles.barDates}>
-                        {r.start_date.slice(5)} 〜 {r.end_date.slice(5)}
+                        {formatDateRange(r.start_date, r.start_period, r.end_date, r.end_period)}
                       </span>
                     )}
                   </div>

frontend/src/components/TimelineView.module.css

@@ -81,6 +81,23 @@
   font-size: 14px;
 }
 
+.loadingOverlay {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  z-index: 40;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  color: #4b5563;
+  font-size: 14px;
+  font-weight: 600;
+  background: rgba(255, 255, 255, 0.92);
+  border-bottom: 2px solid #d1d5db;
+  pointer-events: none;
+}
+
 /* Grid */
 .gridWrapper {
   flex: 1;

frontend/src/hooks/useWebSocket.js

@@ -5,8 +5,9 @@ const WS_BASE = (() => {
   const loc = window.location;
   const proto = loc.protocol === 'https:' ? 'wss:' : 'ws:';
   // Use the same origin as the page; in development the Vite dev server
-  // proxies /ws to the backend, and in production nginx does the same.
-  return `${proto}//${loc.host}/ws`;
+  // proxies /api/ws to the backend, and in production nginx does the same
+  // via the existing location /api/ block (no extra nginx config needed).
+  return `${proto}//${loc.host}/api/ws`;
 })();
 
 const RECONNECT_DELAYS = [1000, 2000, 4000, 8000, 15000, 30000]; // ms
@@ -71,11 +72,30 @@ export default function useWebSocket(onMessage) {
   }, []);
 
   useEffect(() => {
+    // Reset on each mount so that React StrictMode's simulated unmount/remount
+    // does not leave unmountedRef permanently true and block reconnection.
+    unmountedRef.current = false;
     connect();
     return () => {
       unmountedRef.current = true;
       clearTimeout(retryTimerRef.current);
-      wsRef.current?.close();
+      const ws = wsRef.current;
+      if (ws) {
+        // Null out all handlers first to prevent any reconnect attempts.
+        ws.onopen = null;
+        ws.onclose = null;
+        ws.onerror = null;
+        ws.onmessage = null;
+        if (ws.readyState === WebSocket.CONNECTING) {
+          // Closing a CONNECTING socket triggers the browser warning
+          // "WebSocket is closed before the connection is established".
+          // Instead, schedule a close as soon as it opens so the server
+          // isn't left with a permanently idle connection.
+          ws.onopen = () => ws.close();
+        } else if (ws.readyState === WebSocket.OPEN) {
+          ws.close();
+        }
+      }
     };
   }, [connect]);
 

frontend/src/utils/carUtils.js

@@ -11,3 +11,28 @@ export function isInspectionExpirySoon(inspectionExpiry) {
   oneMonthLater.setMonth(oneMonthLater.getMonth() + 1);
   return expiry <= oneMonthLater;
 }
+
+/**
+ * Formats a date range with optional AM/PM periods into a display string.
+ * @param {string} startDate - ISO date string (YYYY-MM-DD)
+ * @param {string} startPeriod - '午前', '午後', or ''
+ * @param {string} endDate - ISO date string (YYYY-MM-DD)
+ * @param {string} endPeriod - '午前', '午後', or ''
+ * @returns {string}
+ */
+export function formatDateRange(startDate, startPeriod, endDate, endPeriod) {
+  const start = startDate.slice(5) + (startPeriod ? ' ' + startPeriod : '');
+  const end = endDate.slice(5) + (endPeriod ? ' ' + endPeriod : '');
+  return `${start} 〜 ${end}`;
+}
+
+/**
+ * Formats a reservation tooltip string with full dates and optional periods.
+ * @param {object} r - reservation object
+ * @returns {string}
+ */
+export function formatReservationTooltip(r) {
+  const start = r.start_date + (r.start_period ? ' ' + r.start_period : '');
+  const end = r.end_date + (r.end_period ? ' ' + r.end_period : '');
+  return `${r.customer_name || '予約'}\n${start} 〜 ${end}${r.notes ? '\n' + r.notes : ''}`;
+}

frontend/vite.config.js

@@ -5,10 +5,10 @@ import net from 'net';
 const backendOrigin = process.env.BACKEND_URL || 'http://localhost:3001';
 
 /**
- * Custom Vite plugin that tunnels WebSocket upgrade requests at /ws to the
+ * Custom Vite plugin that tunnels WebSocket upgrade requests at /api/ws to the
  * backend via raw TCP.  Vite's built-in proxy `ws: true` can silently drop
  * upgrade events that Vite's own HMR handler intercepts first.  This plugin
- * hooks directly onto `httpServer.upgrade` and handles the /ws path before
+ * hooks directly onto `httpServer.upgrade` and handles the /api/ws path before
  * Vite gets a chance to claim it.
  */
 function wsProxyPlugin() {
@@ -16,7 +16,7 @@ function wsProxyPlugin() {
     name: 'ws-proxy',
     configureServer(server) {
       server.httpServer?.on('upgrade', (req, socket, head) => {
-        if (req.url !== '/ws') return;
+        if (req.url !== '/api/ws') return;
 
         const { hostname, port: rawPort } = new URL(backendOrigin);
         const port = parseInt(rawPort) || 3001;
@@ -49,6 +49,7 @@ export default defineConfig({
   plugins: [react(), wsProxyPlugin()],
   server: {
     port: 5173,
+    allowedHosts: ["car.33-4.party"],
     proxy: {
       '/api': {
         target: backendOrigin,

package.json

@@ -4,8 +4,8 @@
   "description": "代車スケジュール管理システム",
   "private": true,
   "scripts": {
-    "dev:backend": "cd backend && node server.js",
-    "dev:frontend": "cd frontend && npx vite",
+    "dev:backend": "cd backend && node server.js --port 3007",
+    "dev:frontend": "cd frontend && npx vite --port 3006",
     "dev": "concurrently \"npm run dev:backend\" \"npm run dev:frontend\"",
     "build": "cd frontend && npx vite build"
   },