Enhance documentation with new features: added dark/light/system theme support, instructions page, and application catalog. Updated API and domain model for app management and automatic migrations on startup. Improved frontend structure with new routes and features for user instructions and app management.

backend/src/PnvPanel.Application/Auth/Me/GetCurrentUserQueryHandler.cs

@@ -0,0 +1,21 @@
+using PnvPanel.Application.Common.Interfaces;
+using PnvPanel.Application.Common.Messaging;
+using PnvPanel.Application.Common.Models;
+
+namespace PnvPanel.Application.Auth.Me;
+
+public sealed class GetCurrentUserQueryHandler(IIdentityService identityService, ICurrentUser currentUser)
+    : IQueryHandler<GetCurrentUserQuery, Result<CurrentUserDto>>
+{
+    public async Task<Result<CurrentUserDto>> Handle(GetCurrentUserQuery query, CancellationToken cancellationToken)
+    {
+        if (currentUser.UserId is not { } userId)
+            return Result.Failure<CurrentUserDto>(AuthErrors.Unauthorized);
+
+        var profile = await identityService.GetProfileAsync(userId, cancellationToken);
+        if (profile is null)
+            return Result.Failure<CurrentUserDto>(AuthErrors.Unauthorized);
+
+        return Result.Success(new CurrentUserDto(profile.Id, profile.UserName, profile.Role, profile.IsActivated));
+    }
+}