feat: 扩展领域模型与配置

src/Domain/TakeoutSaaS.Domain/Membership/Entities/MemberGrowthLog.cs

@@ -0,0 +1,34 @@
+using TakeoutSaaS.Shared.Abstractions.Entities;
+
+namespace TakeoutSaaS.Domain.Membership.Entities;
+
+/// <summary>
+/// 成长值变动日志。
+/// </summary>
+public sealed class MemberGrowthLog : MultiTenantEntityBase
+{
+    /// <summary>
+    /// 会员标识。
+    /// </summary>
+    public Guid MemberId { get; set; }
+
+    /// <summary>
+    /// 变动数量。
+    /// </summary>
+    public int ChangeValue { get; set; }
+
+    /// <summary>
+    /// 当前成长值。
+    /// </summary>
+    public int CurrentValue { get; set; }
+
+    /// <summary>
+    /// 备注。
+    /// </summary>
+    public string? Notes { get; set; }
+
+    /// <summary>
+    /// 发生时间。
+    /// </summary>
+    public DateTime OccurredAt { get; set; } = DateTime.UtcNow;
+}

src/Domain/TakeoutSaaS.Domain/Membership/Entities/MemberPointLedger.cs

@@ -0,0 +1,45 @@
+using TakeoutSaaS.Domain.Membership.Enums;
+using TakeoutSaaS.Shared.Abstractions.Entities;
+
+namespace TakeoutSaaS.Domain.Membership.Entities;
+
+/// <summary>
+/// 积分变动流水。
+/// </summary>
+public sealed class MemberPointLedger : MultiTenantEntityBase
+{
+    /// <summary>
+    /// 会员标识。
+    /// </summary>
+    public Guid MemberId { get; set; }
+
+    /// <summary>
+    /// 变动数量，可为负值。
+    /// </summary>
+    public int ChangeAmount { get; set; }
+
+    /// <summary>
+    /// 变动后余额。
+    /// </summary>
+    public int BalanceAfterChange { get; set; }
+
+    /// <summary>
+    /// 变动原因。
+    /// </summary>
+    public PointChangeReason Reason { get; set; } = PointChangeReason.Purchase;
+
+    /// <summary>
+    /// 来源 ID（订单、活动等）。
+    /// </summary>
+    public Guid? SourceId { get; set; }
+
+    /// <summary>
+    /// 发生时间。
+    /// </summary>
+    public DateTime OccurredAt { get; set; } = DateTime.UtcNow;
+
+    /// <summary>
+    /// 过期时间（如适用）。
+    /// </summary>
+    public DateTime? ExpireAt { get; set; }
+}

src/Domain/TakeoutSaaS.Domain/Membership/Entities/MemberProfile.cs

@@ -0,0 +1,60 @@
+using TakeoutSaaS.Domain.Membership.Enums;
+using TakeoutSaaS.Shared.Abstractions.Entities;
+
+namespace TakeoutSaaS.Domain.Membership.Entities;
+
+/// <summary>
+/// 会员档案。
+/// </summary>
+public sealed class MemberProfile : MultiTenantEntityBase
+{
+    /// <summary>
+    /// 用户标识。
+    /// </summary>
+    public Guid UserId { get; set; }
+
+    /// <summary>
+    /// 手机号。
+    /// </summary>
+    public string Mobile { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 昵称。
+    /// </summary>
+    public string? Nickname { get; set; }
+
+    /// <summary>
+    /// 头像。
+    /// </summary>
+    public string? AvatarUrl { get; set; }
+
+    /// <summary>
+    /// 当前会员等级 ID。
+    /// </summary>
+    public Guid? MemberTierId { get; set; }
+
+    /// <summary>
+    /// 会员状态。
+    /// </summary>
+    public MemberStatus Status { get; set; } = MemberStatus.Active;
+
+    /// <summary>
+    /// 会员积分余额。
+    /// </summary>
+    public int PointsBalance { get; set; }
+
+    /// <summary>
+    /// 成长值/经验值。
+    /// </summary>
+    public int GrowthValue { get; set; }
+
+    /// <summary>
+    /// 生日。
+    /// </summary>
+    public DateTime? BirthDate { get; set; }
+
+    /// <summary>
+    /// 注册时间。
+    /// </summary>
+    public DateTime JoinedAt { get; set; } = DateTime.UtcNow;
+}

src/Domain/TakeoutSaaS.Domain/Membership/Entities/MemberTier.cs

@@ -0,0 +1,29 @@
+using TakeoutSaaS.Shared.Abstractions.Entities;
+
+namespace TakeoutSaaS.Domain.Membership.Entities;
+
+/// <summary>
+/// 会员等级定义。
+/// </summary>
+public sealed class MemberTier : MultiTenantEntityBase
+{
+    /// <summary>
+    /// 等级名称。
+    /// </summary>
+    public string Name { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 所需成长值。
+    /// </summary>
+    public int RequiredGrowth { get; set; }
+
+    /// <summary>
+    /// 等级权益（JSON）。
+    /// </summary>
+    public string BenefitsJson { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 排序值。
+    /// </summary>
+    public int SortOrder { get; set; } = 100;
+}

src/Domain/TakeoutSaaS.Domain/Membership/Enums/MemberStatus.cs

@@ -0,0 +1,22 @@
+namespace TakeoutSaaS.Domain.Membership.Enums;
+
+/// <summary>
+/// 会员状态。
+/// </summary>
+public enum MemberStatus
+{
+    /// <summary>
+    /// 正常。
+    /// </summary>
+    Active = 0,
+
+    /// <summary>
+    /// 已冻结。
+    /// </summary>
+    Frozen = 1,
+
+    /// <summary>
+    /// 已注销。
+    /// </summary>
+    Cancelled = 2
+}

src/Domain/TakeoutSaaS.Domain/Membership/Enums/PointChangeReason.cs

@@ -0,0 +1,32 @@
+namespace TakeoutSaaS.Domain.Membership.Enums;
+
+/// <summary>
+/// 积分变动原因。
+/// </summary>
+public enum PointChangeReason
+{
+    /// <summary>
+    /// 正常消费获得。
+    /// </summary>
+    Purchase = 0,
+
+    /// <summary>
+    /// 活动奖励。
+    /// </summary>
+    Promotion = 1,
+
+    /// <summary>
+    /// 签到或任务。
+    /// </summary>
+    Task = 2,
+
+    /// <summary>
+    /// 管理员调整。
+    /// </summary>
+    Manual = 3,
+
+    /// <summary>
+    /// 抵扣消费。
+    /// </summary>
+    Redeem = 4
+}