Refactor .gitignore and enhance transaction handling with encryption support

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

Took 48 minutes

backend/SpMega.Backend/Persistent/Database/AppDbContext.cs

@@ -2,6 +2,7 @@ using Microsoft.EntityFrameworkCore;
 using MongoDB.EntityFrameworkCore.Extensions;
 using SpMega.Backend.Persistent.Models.Transactions;
 using SpMega.Backend.Persistent.Models.Users;
+using SpMega.Backend.Services;
 
 namespace SpMega.Backend.Persistent.Database;
 
@@ -20,6 +21,14 @@ public class AppDbContext(DbContextOptions<AppDbContext> options) : DbContext(op
     {
         base.OnModelCreating(modelBuilder);
         
-
+        modelBuilder.Entity<User>()
+            .OwnsMany(u => u.Cards, card =>
+            {
+                card.Property(c => c.Token)
+                    .HasConversion(
+                        v => EncryptionHelper.Encrypt(v),
+                        v => EncryptionHelper.Decrypt(v)
+                    );
+            });
     }
 }

backend/SpMega.Backend/Persistent/Models/DTO/UserAccountDTO.cs

@@ -2,14 +2,32 @@ using SPWorldsApi.Types.Interfaces;
 
 namespace SpMega.Backend.Persistent.Models.DTO;
 
-public class UserAccountDTO : IUserAccount
+public class UserAccountDTO
 {
     public string id { get; set; }
     public string username { get; set; }
     public string minecraftUUID { get; set; }
     public string status { get; set; }
     public List<string> roles { get; set; }
-    public ICity city { get; set; }
-    public List<IUserCard> cards { get; set; }
+    public CityDTO city { get; set; }
+    public List<UserCardDTO> cards { get; set; }
     public DateTime createdAt { get; set; }
 }
+
+public class UserCardDTO
+{
+    public string id { get; set; }
+    public string name { get; set; }
+    public string number { get; set; }
+    public int color { get; set; }
+}
+
+public class CityDTO
+{
+    public string id { get; set; }
+    public string name { get; set; }
+    public string description { get; set; }
+    public int x { get; set; }
+    public int z { get; set; }
+    public bool isMayor { get; set; }
+}