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/Apps/ClientAppDto.cs

@@ -2,7 +2,13 @@ using PnvPanel.Domain.Apps;
 
 namespace PnvPanel.Application.Apps;
 
-public sealed record ClientAppDto(Guid Id, string Name, string DownloadUrl, string? Description, string? IconUrl)
+public sealed record ClientAppDto(
+    Guid Id,
+    string Name,
+    string DownloadUrl,
+    string? Description,
+    string? IconUrl
+)
 {
     public static ClientAppDto FromDomain(ClientApp app) =>
         new(app.Id, app.Name, app.DownloadUrl.ToString(), app.Description, app.IconUrl);

backend/src/PnvPanel.Application/Apps/ListAppsQuery.cs

@@ -4,4 +4,6 @@ using PnvPanel.Domain.Apps;
 
 namespace PnvPanel.Application.Apps;
 
-public sealed record ListAppsQuery : IQuery<Result<IReadOnlyDictionary<OsPlatform, IReadOnlyList<ClientAppDto>>>>, IRequiresActivation;
+public sealed record ListAppsQuery
+    : IQuery<Result<IReadOnlyDictionary<OsPlatform, IReadOnlyList<ClientAppDto>>>>,
+        IRequiresActivation;

backend/src/PnvPanel.Application/Apps/ListAppsQueryHandler.cs

@@ -7,22 +7,30 @@ using PnvPanel.Domain.Apps;
 namespace PnvPanel.Application.Apps;
 
 public sealed class ListAppsQueryHandler(IAppDbContext dbContext)
-    : IQueryHandler<ListAppsQuery, Result<IReadOnlyDictionary<OsPlatform, IReadOnlyList<ClientAppDto>>>>
+    : IQueryHandler<
+        ListAppsQuery,
+        Result<IReadOnlyDictionary<OsPlatform, IReadOnlyList<ClientAppDto>>>
+    >
 {
     public async Task<Result<IReadOnlyDictionary<OsPlatform, IReadOnlyList<ClientAppDto>>>> Handle(
-        ListAppsQuery query, CancellationToken cancellationToken)
+        ListAppsQuery query,
+        CancellationToken cancellationToken
+    )
     {
-        var apps = await dbContext.ClientApps.AsNoTracking()
+        var apps = await dbContext
+            .ClientApps.AsNoTracking()
             .Where(a => a.IsEnabled)
             .OrderBy(a => a.SortOrder)
             .ToListAsync(cancellationToken);
 
-        var grouped = apps
-            .GroupBy(a => a.OperatingSystem)
+        var grouped = apps.GroupBy(a => a.OperatingSystem)
             .ToDictionary(
                 g => g.Key,
-                g => (IReadOnlyList<ClientAppDto>)g.Select(ClientAppDto.FromDomain).ToList());
+                g => (IReadOnlyList<ClientAppDto>)g.Select(ClientAppDto.FromDomain).ToList()
+            );
 
-        return Result.Success<IReadOnlyDictionary<OsPlatform, IReadOnlyList<ClientAppDto>>>(grouped);
+        return Result.Success<IReadOnlyDictionary<OsPlatform, IReadOnlyList<ClientAppDto>>>(
+            grouped
+        );
     }
 }