feat: 扩展领域模型与配置

src/Domain/TakeoutSaaS.Domain/Payments/Enums/PaymentMethod.cs

@@ -0,0 +1,14 @@
+namespace TakeoutSaaS.Domain.Payments.Enums;
+
+/// <summary>
+/// 支付方式。
+/// </summary>
+public enum PaymentMethod
+{
+    Unknown = 0,
+    WeChatPay = 1,
+    Alipay = 2,
+    Cash = 3,
+    Card = 4,
+    Balance = 5
+}