Add webhook support for card transactions and notifications.

Some optimizations and fixes

Signed-off-by: Dmitrii <computer@yawaflua.tech>

Took 2 hours 4 minutes

backend/SpMega.Backend/Persistent/Models/Transactions/Notification.cs

@@ -0,0 +1,21 @@
+using SpMega.Backend.Persistent.Models.Users;
+
+namespace SpMega.Backend.Persistent.Models.Transactions;
+
+public class Notification
+{
+    public Guid Id { get; set; }
+    public Guid ReceiverId { get; set; }
+    public string ReceiverName { get; set; }
+    public string ReceiverNumber { get; set; }
+    public string SenderName { get; set; }
+    public string SenderNumber { get; set; }
+    
+    public string Comment { get; set; }
+    public int Amount { get; set; }
+    public string Type { get; set; }
+    
+    public bool IsRead { get; set; } = false;
+    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
+    public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;
+}

backend/SpMega.Backend/Persistent/Models/Transactions/Transaction.cs

@@ -1,3 +1,4 @@
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 using SpMega.Backend.Persistent.Models.Users;
 
@@ -7,13 +8,15 @@ public class Transaction
 {
     public Guid Id { get; set; }
     public string ShortId { get; set; } = Program.GenerateRandomString(8);
-    public string ReceiverName { get; set; }
-    public string ReceiverCardNumber { get; set; }
+    [MaxLength(2048)] public string ReceiverName { get; set; }
+    [MaxLength(2048)] public string ReceiverCardNumber { get; set; }
     [JsonIgnore] public User Sender { get; set; }
-    public string SenderCardNumber { get; set; }
+    
+    [MaxLength(2048)] public string SenderMinecraftName { get; set; }
+    [MaxLength(2048)] public string SenderCardNumber { get; set; }
     
     public int Amount { get; set; } = 0;
-    public string Comment { get; set; } = "";
+    [MaxLength(2048)] public string Comment { get; set; } = "";
     
     public DateTime TransactionDate { get; set; } = DateTime.UtcNow;
 }