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/PushNotifications/PushTokenService.cs

@@ -3,6 +3,7 @@ using Govor.Domain.Common;
 using Govor.Domain.Models.Users;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Logging;
+using SmartRes;
 
 namespace Govor.Application.PushNotifications;
 
@@ -17,7 +18,7 @@ public class PushTokenService : IPushTokenService
         _logger = logger;
     }
 
-    public async Task<Result> DeactivateTokenBySessionAsync(Guid sessionId)
+    public async Task<Result<Unit, Error>> DeactivateTokenBySessionAsync(Guid sessionId)
     {
         try
         {
@@ -34,7 +35,7 @@ public class PushTokenService : IPushTokenService
         }
     }
 
-    public async Task<Result> DeactivateAllTokensByUserIdAsync(Guid userId)
+    public async Task<Result<Unit, Error>> DeactivateAllTokensByUserIdAsync(Guid userId)
     {
         try
         {
@@ -51,7 +52,7 @@ public class PushTokenService : IPushTokenService
         }
     }
 
-    public async Task<Result<List<string>>> GetStringsActiveTokensAsync(Guid userId)
+    public async Task<Result<List<string>, Error>> GetStringsActiveTokensAsync(Guid userId)
     {
         try
         {
@@ -66,11 +67,11 @@ public class PushTokenService : IPushTokenService
         catch (Exception ex)
         {
             _logger.LogError(ex, "Failed to fetch active push tokens for user {UserId}", userId);
-            return Result<List<string>>.Failure(ex);
+            return Result.Failure<List<string>>(ex);
         }
     }
 
-    public async Task<Result<List<string>>> GetUsersStringsActiveTokensAsync(IEnumerable<Guid> userIds)
+    public async Task<Result<List<string>, Error>> GetUsersStringsActiveTokensAsync(IEnumerable<Guid> userIds)
     {
         try
         {
@@ -85,11 +86,11 @@ public class PushTokenService : IPushTokenService
         catch (Exception ex)
         {
             _logger.LogError(ex, "Failed to fetch active push tokens for bulk users");
-            return Result<List<string>>.Failure(ex);
+            return Result.Failure<List<string>>(ex);
         }
     }
 
-    public async Task<Result<string?>> GetActiveTokenBySessionAsync(Guid sessionId)
+    public async Task<Result<string?, Error>> GetActiveTokenBySessionAsync(Guid sessionId)
     {
         try
         {
@@ -104,11 +105,11 @@ public class PushTokenService : IPushTokenService
         catch (Exception ex)
         {
             _logger.LogError(ex, "Failed to fetch active push token for session {SessionId}", sessionId);
-            return Result<string?>.Failure(ex);
+            return Result.Failure<string?>(ex);
         }
     }
 
-    public async Task<Result> RemoveTokensAsync(IEnumerable<string> tokens)
+    public async Task<Result<Unit, Error>> RemoveTokensAsync(IEnumerable<string> tokens)
     {
         if (tokens is null || !tokens.Any()) 
             return Result.Success();
@@ -128,11 +129,11 @@ public class PushTokenService : IPushTokenService
         }
     }
 
-    public async Task<Result> AddOrUpdateTokenAsync(Guid userId, Guid sessionId, string token, string platform)
+    public async Task<Result<Unit, Error>> AddOrUpdateTokenAsync(Guid userId, Guid sessionId, string token, string platform)
     {
         if (string.IsNullOrWhiteSpace(token))
         {
-            return new Error("PushToken.Empty", "Push token cannot be empty.");
+            return Result<Unit, Error>.Failure(Error.Failure("PushToken.Empty", "Push token cannot be empty."));
         }
         
         var existingToken = await _context.UserPushTokens