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/src/PnvPanel.Application/Admin/Users/BlockUserCommandHandler.cs

@@ -10,10 +10,14 @@ namespace PnvPanel.Application.Admin.Users;
 
 /// <summary>Блокировка гасит все активные конфиги в 3x-ui (см. architecture.md).</summary>
 public sealed class BlockUserCommandHandler(
-    IAppDbContext dbContext, IIdentityService identityService, IXuiPanelGateway gateway,
-    IRealtimeNotifier notifier, ITelegramNotifier telegramNotifier, ICurrentUser currentUser,
-    ILogger<BlockUserCommandHandler> logger)
-    : ICommandHandler<BlockUserCommand, Result>
+    IAppDbContext dbContext,
+    IIdentityService identityService,
+    IXuiPanelGateway gateway,
+    IRealtimeNotifier notifier,
+    ITelegramNotifier telegramNotifier,
+    ICurrentUser currentUser,
+    ILogger<BlockUserCommandHandler> logger
+) : ICommandHandler<BlockUserCommand, Result>
 {
     public async Task<Result> Handle(BlockUserCommand command, CancellationToken cancellationToken)
     {
@@ -21,22 +25,32 @@ public sealed class BlockUserCommandHandler(
         if (!blockResult.IsSuccess)
             return blockResult;
 
-        var configs = await dbContext.VpnConfigs
-            .Where(c => c.UserId == command.UserId && c.Status == ConfigStatus.Active)
+        var configs = await dbContext
+            .VpnConfigs.Where(c => c.UserId == command.UserId && c.Status == ConfigStatus.Active)
             .ToListAsync(cancellationToken);
 
         foreach (var config in configs)
         {
-            var inbound = await dbContext.Inbounds.AsNoTracking().FirstOrDefaultAsync(i => i.Id == config.InboundId, cancellationToken);
+            var inbound = await dbContext
+                .Inbounds.AsNoTracking()
+                .FirstOrDefaultAsync(i => i.Id == config.InboundId, cancellationToken);
             var node = inbound is null
                 ? null
-                : await dbContext.Nodes.AsNoTracking().FirstOrDefaultAsync(n => n.Id == inbound.NodeId, cancellationToken);
+                : await dbContext
+                    .Nodes.AsNoTracking()
+                    .FirstOrDefaultAsync(n => n.Id == inbound.NodeId, cancellationToken);
 
             if (inbound is not null && node is not null)
             {
                 var updateResult = await gateway.UpdateClientAsync(
-                    node, inbound.RemoteInboundId, config.ClientExternalId, config.Protocol,
-                    config.Label ?? config.ClientEmail, enable: false, cancellationToken);
+                    node,
+                    inbound.RemoteInboundId,
+                    config.ClientExternalId,
+                    config.Protocol,
+                    config.Label ?? config.ClientEmail,
+                    enable: false,
+                    cancellationToken
+                );
 
                 if (!updateResult.IsSuccess)
                 {
@@ -45,19 +59,40 @@ public sealed class BlockUserCommandHandler(
                     // Конфиг останется Active и будет подхвачен повторным BlockUserCommand (идемпотентен).
                     logger.LogWarning(
                         "Failed to disable client for config {ConfigId} on node {NodeId} while blocking user {UserId}: {Error}",
-                        config.Id, node.Id, command.UserId, updateResult.Error);
+                        config.Id,
+                        node.Id,
+                        command.UserId,
+                        updateResult.Error
+                    );
                     continue;
                 }
             }
 
             config.Disable();
-            await notifier.NotifyConfigStatusChangedAsync(config.UserId, config.Id, config.Status, cancellationToken);
+            await notifier.NotifyConfigStatusChangedAsync(
+                config.UserId,
+                config.Id,
+                config.Status,
+                cancellationToken
+            );
         }
 
-        dbContext.AuditLogs.Add(AuditLog.Create(
-            currentUser.UserId, "UserBlocked", "User", command.UserId.ToString(), metadata: null, AuditSource.Web));
+        dbContext.AuditLogs.Add(
+            AuditLog.Create(
+                currentUser.UserId,
+                "UserBlocked",
+                "User",
+                command.UserId.ToString(),
+                metadata: null,
+                AuditSource.Web
+            )
+        );
 
-        await telegramNotifier.NotifyUserAsync(command.UserId, "⛔ Ваш аккаунт заблокирован администратором.", cancellationToken);
+        await telegramNotifier.NotifyUserAsync(
+            command.UserId,
+            "⛔ Ваш аккаунт заблокирован администратором.",
+            cancellationToken
+        );
 
         return Result.Success();
     }