Stable server

was added removing messages
many fixes bugs and moving to result pattern from throwing exceptions

Govor.Domain/Common/Error.cs

@@ -11,6 +11,6 @@ public record Error(string Code, string Message, ErrorType Type, Dictionary<stri
     public static Error Unauthorized(string code, string message) => new(code, message, ErrorType.Unauthorized);
     public static Error Forbidden(string code, string message) => new(code, message, ErrorType.Forbidden);
     public static Error Failure(string code, string message) => new(code, message, ErrorType.Failure);
-    
+    public static Error ServerError(string code, string message) => new(code, message, ErrorType.ServerError);
     public override string ToString() => $"{Code}: {Message}";
 }

Govor.Domain/Common/ErrorType.cs

@@ -7,5 +7,6 @@ public enum ErrorType
     NotFound = 2,     // (404 Not Found)
     Conflict = 3,     // (409 Conflict)
     Unauthorized = 4, // (401 Unauthorized)
-    Forbidden = 5     // (403 Forbidden)
+    Forbidden = 5,    // (403 Forbidden)
+    ServerError = 6   // (500 Server Error)
 }

Govor.Domain/Migrations/20260727130055_InitialCreate.Designer.cs

@@ -12,7 +12,7 @@ using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
 namespace Govor.Domain.Migrations
 {
     [DbContext(typeof(GovorDbContext))]
-    [Migration("20260716110338_InitialCreate")]
+    [Migration("20260727130055_InitialCreate")]
     partial class InitialCreate
     {
         /// <inheritdoc />
@@ -20,7 +20,7 @@ namespace Govor.Domain.Migrations
         {
 #pragma warning disable 612, 618
             modelBuilder
-                .HasAnnotation("ProductVersion", "8.0.6")
+                .HasAnnotation("ProductVersion", "10.0.10")
                 .HasAnnotation("Relational:MaxIdentifierLength", 63);
 
             NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
@@ -202,6 +202,9 @@ namespace Govor.Domain.Migrations
                     b.Property<int>("MaxParticipants")
                         .HasColumnType("integer");
 
+                    b.Property<int>("Participants")
+                        .HasColumnType("integer");
+
                     b.HasKey("Id");
 
                     b.ToTable("Invitations");

Govor.Domain/Migrations/20260727130055_InitialCreate.cs

@@ -38,7 +38,8 @@ namespace Govor.Domain.Migrations
                     Description = table.Column<string>(type: "text", nullable: false),
                     DateCreated = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
                     EndDate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
-                    MaxParticipants = table.Column<int>(type: "integer", nullable: false)
+                    MaxParticipants = table.Column<int>(type: "integer", nullable: false),
+                    Participants = table.Column<int>(type: "integer", nullable: false)
                 },
                 constraints: table =>
                 {

Govor.Domain/Migrations/GovorDbContextModelSnapshot.cs

@@ -17,7 +17,7 @@ namespace Govor.Domain.Migrations
         {
 #pragma warning disable 612, 618
             modelBuilder
-                .HasAnnotation("ProductVersion", "8.0.6")
+                .HasAnnotation("ProductVersion", "10.0.10")
                 .HasAnnotation("Relational:MaxIdentifierLength", 63);
 
             NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
@@ -199,6 +199,9 @@ namespace Govor.Domain.Migrations
                     b.Property<int>("MaxParticipants")
                         .HasColumnType("integer");
 
+                    b.Property<int>("Participants")
+                        .HasColumnType("integer");
+
                     b.HasKey("Id");
 
                     b.ToTable("Invitations");

Govor.Domain/Models/Invitation.cs

@@ -12,6 +12,7 @@ public class Invitation
     public DateTime DateCreated { get; set; }
     public DateTime EndDate { get; set; }
     public int MaxParticipants { get; set; }
+    public int Participants { get; set; } = 0;
     public List<User> Users { get; set; } = new List<User>();
 
     public override bool Equals(object? obj)