feat: 扩展领域模型与配置

src/Domain/TakeoutSaaS.Domain/Queues/Enums/QueueStatus.cs

@@ -0,0 +1,13 @@
+namespace TakeoutSaaS.Domain.Queues.Enums;
+
+/// <summary>
+/// 排队状态。
+/// </summary>
+public enum QueueStatus
+{
+    Waiting = 0,
+    Calling = 1,
+    Completed = 2,
+    Cancelled = 3,
+    Expired = 4
+}