Refactor project files for improved readability and structure

- Cleaned up whitespace in Directory.Build.props and Directory.Packages.props for consistency.
- Reformatted project file references in PnvPanel.Api.csproj for better clarity.
- Enhanced code readability in various endpoint files by adjusting line breaks and indentation.
- Standardized method signatures and improved formatting in ResultExtensions and multiple endpoint classes for better maintainability.

backend/tests/PnvPanel.Application.Tests/Telegram/Bot/ApproveTelegramLoginCommandHandlerTests.cs

@@ -23,11 +23,16 @@ public class ApproveTelegramLoginCommandHandlerTests
         dbContext.TelegramLoginRequests.Add(request);
         await dbContext.SaveChangesAsync(CancellationToken.None);
 
-        _identityService.FindUserIdByTelegramUserIdAsync(telegramUserId, Arg.Any<CancellationToken>()).Returns(userId);
+        _identityService
+            .FindUserIdByTelegramUserIdAsync(telegramUserId, Arg.Any<CancellationToken>())
+            .Returns(userId);
 
         var handler = new ApproveTelegramLoginCommandHandler(dbContext, _identityService);
 
-        var result = await handler.Handle(new ApproveTelegramLoginCommand(request.Id, telegramUserId), CancellationToken.None);
+        var result = await handler.Handle(
+            new ApproveTelegramLoginCommand(request.Id, telegramUserId),
+            CancellationToken.None
+        );
 
         Assert.True(result.IsSuccess);
         Assert.Equal(TelegramLoginStatus.Approved, request.Status);
@@ -40,12 +45,16 @@ public class ApproveTelegramLoginCommandHandlerTests
         using var dbContext = InMemoryDbContextFactory.Create();
         const long telegramUserId = 123456L;
 
-        _identityService.FindUserIdByTelegramUserIdAsync(telegramUserId, Arg.Any<CancellationToken>())
+        _identityService
+            .FindUserIdByTelegramUserIdAsync(telegramUserId, Arg.Any<CancellationToken>())
             .Returns((Guid?)null);
 
         var handler = new ApproveTelegramLoginCommandHandler(dbContext, _identityService);
 
-        var result = await handler.Handle(new ApproveTelegramLoginCommand(Guid.NewGuid(), telegramUserId), CancellationToken.None);
+        var result = await handler.Handle(
+            new ApproveTelegramLoginCommand(Guid.NewGuid(), telegramUserId),
+            CancellationToken.None
+        );
 
         Assert.False(result.IsSuccess);
         Assert.Equal(TelegramErrors.NotLinked, result.Error);
@@ -58,11 +67,16 @@ public class ApproveTelegramLoginCommandHandlerTests
         var userId = Guid.NewGuid();
         const long telegramUserId = 123456L;
 
-        _identityService.FindUserIdByTelegramUserIdAsync(telegramUserId, Arg.Any<CancellationToken>()).Returns(userId);
+        _identityService
+            .FindUserIdByTelegramUserIdAsync(telegramUserId, Arg.Any<CancellationToken>())
+            .Returns(userId);
 
         var handler = new ApproveTelegramLoginCommandHandler(dbContext, _identityService);
 
-        var result = await handler.Handle(new ApproveTelegramLoginCommand(Guid.NewGuid(), telegramUserId), CancellationToken.None);
+        var result = await handler.Handle(
+            new ApproveTelegramLoginCommand(Guid.NewGuid(), telegramUserId),
+            CancellationToken.None
+        );
 
         Assert.False(result.IsSuccess);
         Assert.Equal(TelegramErrors.LoginRequestNotFound, result.Error);
@@ -80,11 +94,16 @@ public class ApproveTelegramLoginCommandHandlerTests
         dbContext.TelegramLoginRequests.Add(request);
         await dbContext.SaveChangesAsync(CancellationToken.None);
 
-        _identityService.FindUserIdByTelegramUserIdAsync(telegramUserId, Arg.Any<CancellationToken>()).Returns(userId);
+        _identityService
+            .FindUserIdByTelegramUserIdAsync(telegramUserId, Arg.Any<CancellationToken>())
+            .Returns(userId);
 
         var handler = new ApproveTelegramLoginCommandHandler(dbContext, _identityService);
 
-        var result = await handler.Handle(new ApproveTelegramLoginCommand(request.Id, telegramUserId), CancellationToken.None);
+        var result = await handler.Handle(
+            new ApproveTelegramLoginCommand(request.Id, telegramUserId),
+            CancellationToken.None
+        );
 
         Assert.False(result.IsSuccess);
         Assert.Equal("Telegram.LoginRequestInvalid", result.Error.Code);
@@ -101,11 +120,16 @@ public class ApproveTelegramLoginCommandHandlerTests
         dbContext.TelegramLoginRequests.Add(request);
         await dbContext.SaveChangesAsync(CancellationToken.None);
 
-        _identityService.FindUserIdByTelegramUserIdAsync(telegramUserId, Arg.Any<CancellationToken>()).Returns(userId);
+        _identityService
+            .FindUserIdByTelegramUserIdAsync(telegramUserId, Arg.Any<CancellationToken>())
+            .Returns(userId);
 
         var handler = new ApproveTelegramLoginCommandHandler(dbContext, _identityService);
 
-        var result = await handler.Handle(new ApproveTelegramLoginCommand(request.Id, telegramUserId), CancellationToken.None);
+        var result = await handler.Handle(
+            new ApproveTelegramLoginCommand(request.Id, telegramUserId),
+            CancellationToken.None
+        );
 
         Assert.False(result.IsSuccess);
         Assert.Equal("Telegram.LoginRequestInvalid", result.Error.Code);