add discord bot

change net6.0 net7.0

Enums/TransactionType.cs

@@ -0,0 +1,14 @@
+namespace DiscordApp.Enums
+{
+    public enum TransactionType
+    {
+        Refill = 0,
+        UserDelivery = 1,
+        CourierDelivery = 2,
+        Withdraw = 3,
+        Order = 4,
+        Buy = 5,
+        Sell = 6,
+        Refund = 7
+    }
+}