Refactor logging messages for consistency and clarity

- Updated various logging messages across the application to replace Russian text with English equivalents, ensuring consistency in error and information logs.
- Enhanced clarity in log messages related to Telegram bot operations, user management commands, and health check services, improving overall traceability and understanding of application behavior.

backend/src/PnvPanel.Application/Common/Behaviors/LoggingBehavior.cs

@@ -10,11 +10,11 @@ public sealed class LoggingBehavior<TRequest, TResponse>(ILogger<LoggingBehavior
     public async Task<TResponse> Handle(TRequest request, RequestHandlerDelegate<TResponse> next, CancellationToken cancellationToken)
     {
         var requestName = typeof(TRequest).Name;
-        logger.LogInformation("Обработка {RequestName}", requestName);
+        logger.LogInformation("Handling {RequestName}", requestName);
 
         var response = await next();
 
-        logger.LogInformation("Обработан {RequestName}", requestName);
+        logger.LogInformation("Handled {RequestName}", requestName);
         return response;
     }
 }