Enhance Docker setup and user notification features

- Updated docker-compose.yml to include environment variables and health checks for the app service.
- Modified Dockerfile to install curl for health checks and adjusted the build process for backend services.
- Improved user notification handling in activation, blocking, and config revocation commands by integrating Telegram notifications.
- Added new test cases to validate the updated command handlers and Telegram notifier functionality.
- Enhanced documentation to reflect the new Telegram bot features and user management improvements.

backend/src/PnvPanel.Api/Telegram/PnvBotUpdateHandler.cs

@@ -262,7 +262,7 @@ public sealed class PnvBotUpdateHandler(
     {
         const string text = "Привет! Это бот PnvPanel.\n\n"
             + "/configs — мои конфиги\n"
-            + "/login — войти на сайт без пароля\n"
+            + "Вход без пароля запускается кнопкой «Войти через Telegram» на сайте — бот пришлёт запрос на подтверждение.\n"
             + "/unlink — отвязать Telegram\n"
             + "/help — эта справка";
         await botClient.SendMessage(chatId, text, cancellationToken: cancellationToken);

backend/src/PnvPanel.Application/Admin/Activation/ApproveActivationCommandHandler.cs

@@ -9,7 +9,8 @@ using PnvPanel.Domain.Activation;
 namespace PnvPanel.Application.Admin.Activation;
 
 public sealed class ApproveActivationCommandHandler(
-    IAppDbContext dbContext, IIdentityService identityService, IRealtimeNotifier notifier, ICurrentUser currentUser)
+    IAppDbContext dbContext, IIdentityService identityService, IRealtimeNotifier notifier,
+    ITelegramNotifier telegramNotifier, ICurrentUser currentUser)
     : ICommandHandler<ApproveActivationCommand, Result>
 {
     public async Task<Result> Handle(ApproveActivationCommand command, CancellationToken cancellationToken)
@@ -33,6 +34,7 @@ public sealed class ApproveActivationCommandHandler(
             return activateResult;
 
         await notifier.NotifyUserActivatedAsync(request.UserId, cancellationToken);
+        await telegramNotifier.NotifyUserAsync(request.UserId, "✅ Ваш аккаунт активирован администратором.", cancellationToken);
         return Result.Success();
     }
 }

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

@@ -10,7 +10,7 @@ namespace PnvPanel.Application.Admin.Users;
 /// <summary>Блокировка гасит все активные конфиги в 3x-ui (см. architecture.md).</summary>
 public sealed class BlockUserCommandHandler(
     IAppDbContext dbContext, IIdentityService identityService, IXuiPanelGateway gateway,
-    IRealtimeNotifier notifier, ICurrentUser currentUser)
+    IRealtimeNotifier notifier, ITelegramNotifier telegramNotifier, ICurrentUser currentUser)
     : ICommandHandler<BlockUserCommand, Result>
 {
     public async Task<Result> Handle(BlockUserCommand command, CancellationToken cancellationToken)
@@ -44,6 +44,8 @@ public sealed class BlockUserCommandHandler(
         dbContext.AuditLogs.Add(AuditLog.Create(
             currentUser.UserId, "UserBlocked", "User", command.UserId.ToString(), metadata: null, AuditSource.Web));
 
+        await telegramNotifier.NotifyUserAsync(command.UserId, "⛔ Ваш аккаунт заблокирован администратором.", cancellationToken);
+
         return Result.Success();
     }
 }

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

@@ -9,7 +9,8 @@ using PnvPanel.Domain.Configs;
 namespace PnvPanel.Application.Admin.Users;
 
 public sealed class ForceRevokeConfigCommandHandler(
-    IAppDbContext dbContext, IXuiPanelGateway gateway, IRealtimeNotifier notifier, ICurrentUser currentUser)
+    IAppDbContext dbContext, IXuiPanelGateway gateway, IRealtimeNotifier notifier,
+    ITelegramNotifier telegramNotifier, ICurrentUser currentUser)
     : ICommandHandler<ForceRevokeConfigCommand, Result>
 {
     public async Task<Result> Handle(ForceRevokeConfigCommand command, CancellationToken cancellationToken)
@@ -35,6 +36,9 @@ public sealed class ForceRevokeConfigCommandHandler(
         dbContext.AuditLogs.Add(AuditLog.Create(
             currentUser.UserId, "ConfigForceRevoked", "VpnConfig", config.Id.ToString(), metadata: null, AuditSource.Web));
 
+        await telegramNotifier.NotifyUserAsync(
+            config.UserId, $"⚠️ Администратор отозвал ваш конфиг «{config.Label ?? config.ClientEmail}».", cancellationToken);
+
         return Result.Success();
     }
 }