Switch to SmartRes Result/Error, upgrade to .NET 10

Migrate codebase to use SmartRes Result<T, Error> (and Unit) across services and interfaces, replacing previous Result usage and updating many method signatures and implementations. Add ResultExtensions to convert SmartRes results to ASP.NET ActionResult and refactor AuthController to use functional Bind/Tap chains for registration/login flows. Upgrade projects to .NET 10 and bump related NuGet packages; add libs/SmartRes.dll and project references. Simplify DbContext registration to use Npgsql only with retry policies and enable detailed logging. Update Swagger/launch settings and other minor fixes (AutoMapper registration change, whitespace/exception handling, and removal of the Govor.ConsoleClient files).

Govor.Application/Users/UserSessions/UserSessionRevoker.cs

@@ -3,6 +3,7 @@ using Govor.Domain;
 using Govor.Domain.Common;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Logging;
+using SmartRes;
 
 namespace Govor.Application.Users.UserSessions;
 
@@ -22,7 +23,7 @@ public class UserSessionRevoker : IUserSessionRevoker
         _logger = logger;
     }
 
-    public async Task<Result> CloseSessionByIdAsync(Guid sessionId, Guid userId)
+    public async Task<Result<Unit, Error>>  CloseSessionByIdAsync(Guid sessionId, Guid userId)
     {
         _logger.LogInformation("Attempting to close session {SessionId} for user {UserId}", sessionId, userId);
 
@@ -34,9 +35,13 @@ public class UserSessionRevoker : IUserSessionRevoker
             if (session is null)
             {
                 _logger.LogWarning("Active session {SessionId} not found or doesn't belong to user {UserId}", sessionId, userId);
-                return Result.Failure(new Error(
-                    "UserSession.NotFoundOrUnauthorized", 
-                    $"Active session {sessionId} for user {userId} was not found."));
+               
+                return Result.Failure(
+                    Error.NotFound(
+                        "UserSession.NotFoundOrUnauthorized",
+                        $"Active session {sessionId} for user {userId} was not found."
+                    )
+                );
             }
 
             session.IsRevoked = true;
@@ -55,7 +60,7 @@ public class UserSessionRevoker : IUserSessionRevoker
         }
     }
 
-    public async Task<Result> CloseAllSessionsAsync(Guid userId)
+    public async Task<Result<Unit, Error>>  CloseAllSessionsAsync(Guid userId)
     {
         _logger.LogInformation("Attempting to close all active sessions for user {UserId}", userId);