Implement support ticket system with role request and bug report functionalities

- Introduced a new support ticket system allowing users to submit bug reports and role requests.
- Implemented endpoints for creating, updating, and managing support tickets, including file attachments.
- Enhanced Telegram bot integration to handle role requests directly within the bot, enabling admins to approve or reject requests without accessing the website.
- Updated database schema to include support ticket entities and their relationships.
- Improved API documentation to reflect new support ticket endpoints and their usage.
- Added necessary localization for support ticket features in both Russian and English.

backend/src/PnvPanel.Infrastructure/DependencyInjection.cs

@@ -11,6 +11,7 @@ using PnvPanel.Infrastructure.BackgroundJobs;
 using PnvPanel.Infrastructure.Identity;
 using PnvPanel.Infrastructure.Persistence;
 using PnvPanel.Infrastructure.Security;
+using PnvPanel.Infrastructure.Storage;
 using PnvPanel.Infrastructure.Telegram;
 using PnvPanel.Infrastructure.Xui;
 using ThreeXui.ConnectionStrings;
@@ -129,6 +130,9 @@ public static class DependencyInjection
 
         services.Configure<TelegramOptions>(configuration.GetSection(TelegramOptions.SectionName));
 
+        services.Configure<FileStorageOptions>(configuration.GetSection(FileStorageOptions.SectionName));
+        services.AddSingleton<IFileStorage, DiskFileStorage>();
+
         return services;
     }
 }