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.Infrastructure/DependencyInjection.cs

@@ -7,9 +7,11 @@ using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.IdentityModel.Tokens;
 using PnvPanel.Application.Common.Interfaces;
+using PnvPanel.Infrastructure.BackgroundJobs;
 using PnvPanel.Infrastructure.Identity;
 using PnvPanel.Infrastructure.Persistence;
 using PnvPanel.Infrastructure.Security;
+using PnvPanel.Infrastructure.Telegram;
 using PnvPanel.Infrastructure.Xui;
 using ThreeXui.ConnectionStrings;
 using ThreeXui.Http;
@@ -66,6 +68,20 @@ public static class DependencyInjection
                     ValidateLifetime = true,
                     ClockSkew = TimeSpan.FromSeconds(30),
                 };
+
+                // SignalR JS-клиент не может выставить заголовок Authorization на WebSocket-хендшейке —
+                // передаёт токен через query-string (?access_token=...), только для /hubs.
+                options.Events = new JwtBearerEvents
+                {
+                    OnMessageReceived = context =>
+                    {
+                        var accessToken = context.Request.Query["access_token"];
+                        if (!string.IsNullOrEmpty(accessToken) && context.HttpContext.Request.Path.StartsWithSegments("/hubs"))
+                            context.Token = accessToken;
+
+                        return Task.CompletedTask;
+                    },
+                };
             });
 
         services.AddAuthorization();
@@ -94,9 +110,20 @@ public static class DependencyInjection
         services.AddScoped<IJwtTokenService, JwtTokenService>();
         services.AddScoped<IRefreshTokenService, RefreshTokenService>();
         services.AddScoped<IRoleService, RoleService>();
-        services.AddScoped<ICurrentUser, CurrentUser>();
+        // Один и тот же экземпляр CurrentUser на scope — и как ICurrentUser (чтение), и как
+        // ICurrentUserSetter (запись, только для Telegram-бота, см. TelegramBotHostedService).
+        services.AddScoped<CurrentUser>();
+        services.AddScoped<ICurrentUser>(sp => sp.GetRequiredService<CurrentUser>());
+        services.AddScoped<ICurrentUserSetter>(sp => sp.GetRequiredService<CurrentUser>());
         services.AddScoped<DbInitializer>();
 
+        services.Configure<TrafficRetentionOptions>(configuration.GetSection(TrafficRetentionOptions.SectionName));
+        services.AddHostedService<TrafficSyncService>();
+        services.AddHostedService<NodeHealthCheckService>();
+        services.AddHostedService<TrafficRetentionService>();
+
+        services.Configure<TelegramOptions>(configuration.GetSection(TelegramOptions.SectionName));
+
         return services;
     }
 }