feat: 扩展领域模型与配置

src/Domain/TakeoutSaaS.Domain/Reservations/Entities/Reservation.cs

@@ -0,0 +1,70 @@
+using TakeoutSaaS.Domain.Reservations.Enums;
+using TakeoutSaaS.Shared.Abstractions.Entities;
+
+namespace TakeoutSaaS.Domain.Reservations.Entities;
+
+/// <summary>
+/// 预约/预订记录。
+/// </summary>
+public sealed class Reservation : MultiTenantEntityBase
+{
+    /// <summary>
+    /// 门店。
+    /// </summary>
+    public Guid StoreId { get; set; }
+
+    /// <summary>
+    /// 预约号。
+    /// </summary>
+    public string ReservationNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 客户姓名。
+    /// </summary>
+    public string CustomerName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 联系电话。
+    /// </summary>
+    public string CustomerPhone { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 用餐人数。
+    /// </summary>
+    public int PeopleCount { get; set; }
+
+    /// <summary>
+    /// 预约时间（UTC）。
+    /// </summary>
+    public DateTime ReservationTime { get; set; }
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public ReservationStatus Status { get; set; } = ReservationStatus.Pending;
+
+    /// <summary>
+    /// 桌型/标签。
+    /// </summary>
+    public string? TablePreference { get; set; }
+
+    /// <summary>
+    /// 备注。
+    /// </summary>
+    public string? Remark { get; set; }
+
+    /// <summary>
+    /// 核销码/到店码。
+    /// </summary>
+    public string? CheckInCode { get; set; }
+
+    /// <summary>
+    /// 实际签到时间。
+    /// </summary>
+    public DateTime? CheckedInAt { get; set; }
+
+    /// <summary>
+    /// 取消时间。
+    /// </summary>
+    public DateTime? CancelledAt { get; set; }
+}

src/Domain/TakeoutSaaS.Domain/Reservations/Enums/ReservationStatus.cs

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+namespace TakeoutSaaS.Domain.Reservations.Enums;
+
+/// <summary>
+/// 预约状态。
+/// </summary>
+public enum ReservationStatus
+{
+    Pending = 0,
+    Confirmed = 1,
+    CheckedIn = 2,
+    Cancelled = 3,
+    NoShow = 4
+}