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.Api/Telegram/PnvBotUpdateHandler.cs

@@ -1,5 +1,6 @@
 using Microsoft.Extensions.Options;
 using PnvPanel.Application.Admin.Activation;
+using PnvPanel.Application.Admin.Support;
 using PnvPanel.Application.Common.Interfaces;
 using PnvPanel.Application.Common.Messaging;
 using PnvPanel.Application.Configs.GetConfigLink;
@@ -222,6 +223,29 @@ public sealed class PnvBotUpdateHandler(
 
                 break;
             }
+            case "rrq":
+            {
+                if (!await TrySetAdminCurrentUserAsync(services, fromId, cancellationToken))
+                {
+                    await botClient.AnswerCallbackQuery(callback.Id, "Недостаточно прав.", cancellationToken: cancellationToken);
+                    return;
+                }
+
+                var result = parts[1] == "approve"
+                    ? await sender.Send(new ApproveRoleRequestCommand(requestId), cancellationToken)
+                    : await sender.Send(new RejectRoleRequestCommand(requestId, Reason: null), cancellationToken);
+
+                await botClient.AnswerCallbackQuery(callback.Id, result.IsSuccess ? "Готово" : result.Error.Message, cancellationToken: cancellationToken);
+                if (result.IsSuccess && callback.Message is not null)
+                {
+                    var statusText = parts[1] == "approve" ? "✅ Заявка одобрена, роль выдана." : "❌ Заявка отклонена.";
+                    var text = $"{Escape(callback.Message.Text ?? "")}\n\n{statusText}";
+                    await botClient.EditMessageText(
+                        chatId.Value, callback.Message.Id, text, parseMode: ParseMode.Html, cancellationToken: cancellationToken);
+                }
+
+                break;
+            }
             case "cfg":
             {
                 if (!await TrySetCurrentUserAsync(services, fromId, cancellationToken))

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

@@ -39,6 +39,64 @@ internal sealed class TelegramNotifier(ITelegramBotClient botClient, IIdentitySe
         }
     }
 
+    public async Task NotifyAdminsBugReportCreatedAsync(Guid ticketId, string userName, string message, CancellationToken cancellationToken)
+    {
+        if (string.IsNullOrWhiteSpace(options.Value.BotToken))
+            return;
+
+        var preview = message.Length > 300 ? message[..300] + "…" : message;
+        var text = $"🐞 Новый тикет (баг/предложение) от <b>{Escape(userName)}</b>\n{Escape(preview)}";
+
+        // Только ссылка на сайт — переписка и картинки удобнее там, инлайн-действий для баг-тикетов нет.
+        InlineKeyboardMarkup? keyboard = null;
+        if (!string.IsNullOrWhiteSpace(options.Value.PublicSiteUrl))
+        {
+            var url = $"{options.Value.PublicSiteUrl.TrimEnd('/')}/admin/support/{ticketId}";
+            keyboard = new InlineKeyboardMarkup(new[] { InlineKeyboardButton.WithUrl("🌐 Открыть на сайте", url) });
+        }
+
+        foreach (var adminId in options.Value.ParseAdminTelegramUserIds())
+        {
+            try
+            {
+                await botClient.SendMessage(
+                    adminId, text, parseMode: ParseMode.Html, replyMarkup: keyboard, cancellationToken: cancellationToken);
+            }
+            catch
+            {
+                // Админ мог не запускать бота (нет чата с ботом) — пропускаем, не валим команду.
+            }
+        }
+    }
+
+    public async Task NotifyAdminsRoleRequestCreatedAsync(
+        Guid ticketId, string userName, string roleDescription, string justification, CancellationToken cancellationToken)
+    {
+        if (string.IsNullOrWhiteSpace(options.Value.BotToken))
+            return;
+
+        var text = $"🆕 Заявка на роль от <b>{Escape(userName)}</b>\n{Escape(roleDescription)}\nОбоснование: {Escape(justification)}";
+
+        var keyboard = new InlineKeyboardMarkup(new[]
+        {
+            InlineKeyboardButton.WithCallbackData("✅ Одобрить", $"rrq:approve:{ticketId}"),
+            InlineKeyboardButton.WithCallbackData("❌ Отклонить", $"rrq:reject:{ticketId}"),
+        });
+
+        foreach (var adminId in options.Value.ParseAdminTelegramUserIds())
+        {
+            try
+            {
+                await botClient.SendMessage(
+                    adminId, text, parseMode: ParseMode.Html, replyMarkup: keyboard, cancellationToken: cancellationToken);
+            }
+            catch
+            {
+                // Админ мог не запускать бота (нет чата с ботом) — пропускаем, не валим команду.
+            }
+        }
+    }
+
     public async Task NotifyUserAsync(Guid userId, string message, CancellationToken cancellationToken)
     {
         if (string.IsNullOrWhiteSpace(options.Value.BotToken))