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/Nodes/UpdateNodeCommandHandler.cs

@@ -8,12 +8,21 @@ using PnvPanel.Domain.Nodes;
 namespace PnvPanel.Application.Admin.Nodes;
 
 public sealed class UpdateNodeCommandHandler(
-    IAppDbContext dbContext, IXuiPanelGateway gateway, ISecretProtector secretProtector, ICurrentUser currentUser)
-    : ICommandHandler<UpdateNodeCommand, Result<NodeDto>>
+    IAppDbContext dbContext,
+    IXuiPanelGateway gateway,
+    ISecretProtector secretProtector,
+    ICurrentUser currentUser
+) : ICommandHandler<UpdateNodeCommand, Result<NodeDto>>
 {
-    public async Task<Result<NodeDto>> Handle(UpdateNodeCommand command, CancellationToken cancellationToken)
+    public async Task<Result<NodeDto>> Handle(
+        UpdateNodeCommand command,
+        CancellationToken cancellationToken
+    )
     {
-        var node = await dbContext.Nodes.FirstOrDefaultAsync(n => n.Id == command.NodeId, cancellationToken);
+        var node = await dbContext.Nodes.FirstOrDefaultAsync(
+            n => n.Id == command.NodeId,
+            cancellationToken
+        );
         if (node is null)
             return Result.Failure<NodeDto>(NodeErrors.NotFound);
 
@@ -24,14 +33,27 @@ public sealed class UpdateNodeCommandHandler(
         else
             node.Disable();
 
-        if (!string.IsNullOrWhiteSpace(command.Username) && !string.IsNullOrWhiteSpace(command.Password))
+        if (
+            !string.IsNullOrWhiteSpace(command.Username)
+            && !string.IsNullOrWhiteSpace(command.Password)
+        )
         {
-            node.UpdateCredentials(new NodeCredentials(command.Username, secretProtector.Protect(command.Password)));
+            node.UpdateCredentials(
+                new NodeCredentials(command.Username, secretProtector.Protect(command.Password))
+            );
             gateway.InvalidateClient(node.Id);
         }
 
-        dbContext.AuditLogs.Add(AuditLog.Create(
-            currentUser.UserId, "NodeUpdated", "Node", node.Id.ToString(), metadata: null, AuditSource.Web));
+        dbContext.AuditLogs.Add(
+            AuditLog.Create(
+                currentUser.UserId,
+                "NodeUpdated",
+                "Node",
+                node.Id.ToString(),
+                metadata: null,
+                AuditSource.Web
+            )
+        );
 
         return Result.Success(NodeDto.FromDomain(node));
     }