Improved results handling in service layer

PostFundManagement.Application/Services/Users/UserService.cs

@@ -32,7 +32,7 @@ public sealed class UserService(IDbContextFactory<ApplicationDbContext> contextF
                 context.Users.Update(user);
             }
 
-            return Result.FailIf(await context.SaveChangesAsync(cancellationToken) <= 0, CreateError.New);
+            return Result.OkIf(await context.SaveChangesAsync(cancellationToken) > 0, CreateError.New);
         }));
 
     public async ValueTask<Result<User[]>> GetUsersAsync(Pagination pagination, UserFilterRequest request, CancellationToken cancellationToken = default) =>
@@ -74,7 +74,7 @@ public sealed class UserService(IDbContextFactory<ApplicationDbContext> contextF
                 .Where(f => f.Id == userId)
                 .ExecuteUpdateAsync(f => f.SetProperty(u => u.Status, status), cancellationToken);
 
-            return Result.FailIf(changedTotal <= 0, UpdateError.New);
+            return Result.OkIf(changedTotal > 0, UpdateError.New);
         }));
 
     public async ValueTask<Result<User>> GetUserAsync(Guid userId, CancellationToken cancellationToken) =>
@@ -85,8 +85,7 @@ public sealed class UserService(IDbContextFactory<ApplicationDbContext> contextF
             var user = await context.Users.AsNoTracking()
                 .FirstOrDefaultAsync(f => f.Id == userId, cancellationToken);
 
-            return user is not null
-                ? Result.Ok(user.Map())
-                : Result.Fail(NotFoundError.New);
+            return Result.FailIf(user is null, NotFoundError.New)
+                .ToResult(user!.Map());
         }));
 }