Add Telegram bot integration and enhance user management features

- Introduced Telegram.Bot package for bot functionality.
- Updated user management to include Telegram linking and blocking features.
- Enhanced activation request handling with notifications via Telegram.
- Added new database entities for Telegram link tokens and login requests.
- Implemented traffic synchronization for client stats in the XuiPanelGateway.
- Updated application structure to support new test projects and improved dependency injection for Telegram services.

backend/src/PnvPanel.Application/Admin/Users/ResetUserPasswordCommandHandler.cs

@@ -0,0 +1,23 @@
+using PnvPanel.Application.Common.Interfaces;
+using PnvPanel.Application.Common.Messaging;
+using PnvPanel.Application.Common.Models;
+using PnvPanel.Domain.Audit;
+
+namespace PnvPanel.Application.Admin.Users;
+
+public sealed class ResetUserPasswordCommandHandler(IAppDbContext dbContext, IIdentityService identityService, ICurrentUser currentUser)
+    : ICommandHandler<ResetUserPasswordCommand, Result>
+{
+    public async Task<Result> Handle(ResetUserPasswordCommand command, CancellationToken cancellationToken)
+    {
+        var result = await identityService.ResetPasswordAsync(command.UserId, command.NewPassword, cancellationToken);
+        if (!result.IsSuccess)
+            return result;
+
+        dbContext.AuditLogs.Add(AuditLog.Create(
+            currentUser.UserId, "UserPasswordReset", "User", command.UserId.ToString(), metadata: null, AuditSource.Web));
+        await dbContext.SaveChangesAsync(cancellationToken);
+
+        return Result.Success();
+    }
+}