commit 38c6a1a682da0da22257984547255b0d0ff3d2a3
Author: wenil <x570@local>
Date:   Fri Oct 30 14:44:04 2026 +0300

    Add standalone GusVoice AWG bot and Linux installer

diff --git a/.gitattributes b/.gitattributes
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--- /dev/null
+++ b/.gitattributes
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+* text=auto eol=lf
+*.png binary
diff --git a/.gitignore b/.gitignore
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+++ b/.gitignore
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+__pycache__/
+*.py[cod]
+.venv/
+*.sqlite3*
+*.log
+config.json
+.env
diff --git a/LICENSE b/LICENSE
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+++ b/LICENSE
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+MIT License
+
+Copyright (c) 2026 AWG Gus Bot contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
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+++ b/README.md
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+# AWG для Гуся
+
+Отдельный бот GusVoice для управления **уже установленным AWG Toolza (`awg2`)**.
+Работает рядом с Telegram-ботом: своя служба, настройки и состояние; оба интерфейса управляют одними VPN-клиентами.
+Telegram Mini App не используется.
+
+Версия **0.1.0 — первая версия для проверки на реальном сервере**.
+
+## Установка
+
+На том Linux-сервере, где уже работает `awg2`:
+
+```bash
+sudo bash -c 'set -e; f=$(mktemp); trap '\''rm -f -- "$f"'\'' EXIT; curl -fsSL https://gitea.bvrdo.online/wenil/awg-gus-bot/raw/branch/main/install.sh -o "$f"; bash "$f"'
+```
+
+Можно скачать и прочитать скрипт отдельно:
+
+```bash
+curl -fsSL https://gitea.bvrdo.online/wenil/awg-gus-bot/raw/branch/main/install.sh -o awg-gus-install.sh
+less awg-gus-install.sh
+sudo bash awg-gus-install.sh
+```
+
+Понадобятся:
+
+1. Linux с systemd, Python **3.10+**, работающая команда `awg2 api version`.
+   Типичные системы: Debian 12/13, Ubuntu 22.04/24.04. Сам AWG установщик этого проекта не устанавливает и не обновляет.
+2. GusVoice с Bot API **3+**, включёнными ботами, кнопками, командами и HTML-разметкой.
+3. **Отдельный новый бот** в «Настройки → Мои боты». Приватного режима достаточно для владельца.
+4. HTTPS-адрес сайта Гуся и токен бота. Сертификат должен быть доверенным на AWG-сервере.
+
+Установщик запросит адрес и токен (токен вводится скрыто), проверит API и покажет одноразовую команду `/start <код>`.
+Отправьте её **в личную беседу с созданным ботом**. Код действует 10 минут; случайное первое сообщение доступ не выдаёт.
+После подтверждения владелец будет записан по UUID. Затем отправьте `/menu`.
+
+Адрес AWG-сервера вводить не нужно: бот выполняет локальный `awg2 api`.
+Если адрес сайта и API Гуся отличаются, официальный SDK определит API через `config.json` сайта.
+Нужен исходящий HTTPS-доступ от AWG-сервера к Гусю; открывать входящие порты не требуется — используется polling.
+
+При отсутствии зависимостей установщик использует apt для `python3`, `curl`, `tar`, `qrencode`, `ca-certificates`.
+На других дистрибутивах установите эти программы самостоятельно. Python SDK включён в репозиторий; pip/PyPI для установки не нужны.
+
+## Что умеет 0.1.0
+
+- Главное меню со статусом сервера и клиента: работает/офлайн, IP, трафик.
+- Список клиентов с перелистыванием, создание, переименование и удаление.
+- Выдача `.conf` и PNG QR-кода одним сообщением; конфиг передаётся в `qrencode` через stdin.
+- Перевыпуск ключа, сроки доступа, месячный/общий лимит трафика, скорость, сброс счётчика лимита.
+- Диагностика AWG, перезапуск интерфейса после подтверждения.
+- Создание и отправка резервной копии, экспорт клиентских конфигов.
+- Уведомления об изменении состояния AWG и выбранных клиентов. По умолчанию выключены.
+
+Все операции изменения AWG требуют кнопки подтверждения, действующей 2 минуты.
+Список разрешённых `awg2 api` операций зафиксирован в коде. Произвольных команд оболочки из чата нет.
+Проверка владельца и личной беседы выполняется для сообщений и кнопок.
+
+Команды: `/menu`, `/status`, `/clients`, `/new`, `/cancel`, `/whoami`, `/help`.
+
+Мониторинг проверяет состояние раз в минуту; клиент считается офлайн спустя 5 минут без рукопожатия.
+Включите «Следить» в карточке нужного клиента. Отдельный переключатель состояния сервера — в «Уведомлениях».
+После запуска бот запоминает текущее состояние без рассылки и пишет только при изменении.
+
+В первой версии через меню `awg2` остаются: установка/обновление AWG и модулей ядра, создание сервера,
+настройка туннелей/DNS/обфускаторов, массовое создание, восстановление бэкапа и удаление всей установки.
+Это отдельный нативный клиент основных функций, а не полная копия всех экранов Telegram-бота.
+
+## Сосуществование с Telegram
+
+| Компонент | Этот бот |
+|---|---|
+| Служба | `awg-gus-bot.service` |
+| Программа | `/opt/awg-gus-bot/current` → отдельная версия в `releases/` |
+| Настройки | `/etc/awg-gus-bot.json`, права `600` |
+| Состояние | `/var/lib/awg-gus-bot`, отдельная SQLite-база |
+| Управление | `/usr/local/bin/awg-gus-bot` |
+
+Установщик не меняет файлы и службу `awg-bot`, не обновляет `awg2` и не перезапускает VPN.
+**Данные VPN общие:** если удалить клиента через Гуся, он исчезнет и в Telegram.
+В проверенном upstream `awg2 api` изменяющие команды сериализованы общим `flock`.
+Если другой интерфейс занят длительной операцией, AWG может попросить повторить действие позже.
+
+Бот работает от root, поскольку это требуется локальному `awg2 api`.
+Настройки, токены и база состояния не входят в git. В журнал пишутся типы ошибок, без токенов и конфигов VPN.
+Архивы и конфиги отправляются только владельцу в личку; в них содержатся ключи VPN.
+
+## Обновление и управление
+
+```bash
+sudo awg-gus-bot update    # загрузить новую версию из Gitea
+sudo awg-gus-bot check     # проверить токен, возможности Гуся и awg2 api
+sudo awg-gus-bot status
+sudo awg-gus-bot logs
+sudo awg-gus-bot restart
+sudo awg-gus-bot stop
+sudo awg-gus-bot start
+sudo awg-gus-bot setup     # повторная настройка/привязка того же бота
+```
+
+Повторная установка тоже обновляет программу. Настройки сохраняются без повторного запроса токена.
+Новая версия сначала скачивается и проверяется, затем переключается `current`.
+Если служба не запустилась, установщик возвращает прежние программу/службу/настройки и запускает прежнюю службу,
+если она работала до обновления. Старые версии автоматически не удаляются.
+
+При смене на другой аккаунт бота база специально не переиспользуется: старые chat UUID и курсор событий принадлежат прежнему боту.
+Для такого переноса сначала сохраните текущую установку и подготовьте новое состояние; `setup` рассчитан на перепривязку того же аккаунта
+или обновление его токена.
+
+## Ограничения и проверка на сервере
+
+- Файл до 25 МиБ. Большой архив остаётся на сервере — заберите его по SSH.
+- Слишком длинный конфиг выдаётся файлом без QR. Если в журнале ошибка QR, проверьте `qrencode --version`.
+- Отправка/редактирование ограничены примерно одним сообщением в секунду; ответы на кнопки выполняются отдельно.
+- Пока длится действие в личке, новые нажатия получают ответ «операция выполняется».
+- Курсор событий сохраняется **до запуска действия**, поэтому при сбое действие не повторится автоматически.
+  После перезапуска бот сообщит о прерванной обработке. Проверьте фактическое состояние перед повтором.
+  Это не обещание транзакции между чатом и AWG: действие могло выполниться до сбоя доставки ответа.
+- Кнопки подтверждения и незавершённый ввод сбрасываются при перезапуске.
+- Вторая копия с тем же токеном или ранее настроенный webhook мешают polling; используйте выделенного бота.
+
+Первый ручной прогон:
+
+1. `/menu` → проверить версию AWG, число клиентов, список и карточку существующего клиента.
+2. Создать временного клиента, например `gus-test-01`, на 1 день.
+3. Проверить скачивание `.conf` и отображение QR; импортировать конфиг и проверить соединение.
+4. Убедиться, что этот же клиент появился в Telegram-боте.
+5. Изменить срок/лимит, перезапустить только `awg-gus-bot`, повторно открыть `/menu`.
+6. Удалить временного клиента с подтверждением; проверить, что Telegram-бот продолжает работать.
+
+## Разработка и происхождение
+
+```bash
+python3 -m unittest discover -s tests -v
+bash -n install.sh
+bash -n awg-gus-bot
+```
+
+Тесты проверяют права владельца, личку, подтверждения/отмену, повторные события после перезапуска,
+создание клиента, файлы и QR, лимиты, мониторинг. Транспортные тесты используют настоящий включённый SDK
+и локальный HTTP-стенд. Вызовы AWG имитируются: эти тесты не меняют VPN и не подтверждают установку на реальном systemd-сервере.
+
+- GusVoice Python SDK **0.1.0** включён без изменений в `vendor/gusvoice_bot/` (MIT).
+  Источник: `Gleb1290/gusvoice`, commit `3113f3106b8d0d0924449ae17489c81d076a4cb5`.
+- Контракт `awg2 api` сверялся с `pumbaX/awg-multi-script`, commit `aedff0bc4b0099a3584bc3c519fa42758b5e672e`
+  (AWG Toolza bot 3.4.40). Идея экранов и ограничения имён/QR основаны на этом проекте (MIT).
+- Лицензии и уведомления находятся в `licenses/`; лицензия этого проекта — MIT.
+
+Официальный API: https://github.com/Gleb1290/gusvoice/blob/main/docs/bots.ru.md
+
+AWG Toolza: https://github.com/pumbaX/awg-multi-script
diff --git a/awg-gus-bot b/awg-gus-bot
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--- /dev/null
+++ b/awg-gus-bot
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+#!/usr/bin/env bash
+set -Eeuo pipefail
+BASE=/opt/awg-gus-bot
+case "${1:-status}" in
+  status) systemctl status awg-gus-bot --no-pager ;;
+  logs) journalctl -u awg-gus-bot -n 80 --no-pager ;;
+  restart|stop|start) [[ $EUID -eq 0 ]] || { echo 'Запустите через sudo'; exit 1; }; systemctl "$1" awg-gus-bot ;;
+  check) exec python3 "$BASE/current/run.py" check ;;
+  setup) exec bash "$BASE/current/install.sh" --src "$BASE/current" --configure ;;
+  update)
+    [[ $EUID -eq 0 ]] || { echo 'Запустите через sudo'; exit 1; }
+    export AWG_GUS_REPO_URL AWG_GUS_REF
+    AWG_GUS_REPO_URL=$(cat "$BASE/current/source-url")
+    AWG_GUS_REF=$(cat "$BASE/current/source-ref")
+    exec bash "$BASE/current/install.sh"
+    ;;
+  *) echo 'Использование: awg-gus-bot status|logs|check|restart|stop|start|setup|update'; exit 2 ;;
+esac
diff --git a/awg_gus/__init__.py b/awg_gus/__init__.py
new file mode 100644
index 0000000..3dc1f76
--- /dev/null
+++ b/awg_gus/__init__.py
@@ -0,0 +1 @@
+__version__ = "0.1.0"
diff --git a/awg_gus/bot.py b/awg_gus/bot.py
new file mode 100644
index 0000000..382ffe8
--- /dev/null
+++ b/awg_gus/bot.py
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+"""A native GusVoice UI for an already installed AWG Toolza server."""
+from __future__ import annotations
+
+import asyncio
+import contextlib
+from dataclasses import dataclass
+import logging
+from pathlib import Path
+import re
+import secrets
+import shutil
+import time
+
+from gusvoice_bot import GusVoiceApiError, InputFile
+
+from . import __version__
+from .core import AwgError, EXPIRE, LIMIT, NAME, SPEED, esc, redacted, size
+
+log = logging.getLogger("awg-gus")
+PAGE = 10
+FILE_MAX = 25 * 1024 * 1024
+
+
+def button(text, data):
+    if len(data.encode()) > 64:
+        raise ValueError("callback_data too long")
+    return {"text": text, "callback_data": data}
+
+
+HOME = [button("🏠 Меню", "home")]
+
+
+def client_status(c):
+    if c.get("blocked"):
+        return "🚫 заблокирован"
+    if c.get("online"):
+        return "🟢 онлайн"
+    return "⚪ офлайн" if c.get("handshake") else "⚪ ещё не подключался"
+
+
+@dataclass
+class Event:
+    uid: str
+    chat: str
+    update_id: int
+    message: str | None = None
+    text: str = ""
+    data: str = ""
+
+
+class Bot:
+    def __init__(self, config, api, delivery, state):
+        self.config, self.api, self.io, self.state = config, api, delivery, state
+        self.owners = set(config["owners"])
+        self.steps = {}
+        self.confirmations = {}
+        self.tasks = {}
+        self.interrupted = {row[0] for row in state.db.execute("SELECT uid FROM pending")}
+        with state.db:
+            state.db.execute("DELETE FROM pending")
+        self.observed = {}
+
+    async def screen(self, e, text, rows=None):
+        out = await self.io.show(e.chat, text, rows if rows is not None else [HOME], e.message)
+        if isinstance(out, dict):
+            e.message = out.get("message_id")
+        return out
+
+    async def clients(self):
+        data = (await self.api.call("clients", "list")).get("data")
+        if not isinstance(data, list):
+            raise AwgError("Неверный ответ clients list")
+        return [c for c in data if isinstance(c, dict) and isinstance(c.get("name"), str) and NAME.fullmatch(c["name"])]
+
+    async def client(self, name):
+        if not NAME.fullmatch(name):
+            raise ValueError("Неверное имя клиента")
+        c = next((c for c in await self.clients() if c["name"] == name), None)
+        if c is None:
+            raise ValueError("Клиент уже удалён. Обновите список.")
+        return c
+
+    async def process(self, update):
+        n = update.get("update_id")
+        if not isinstance(n, int) or isinstance(n, bool) or n < self.state.get("offset", 0):
+            return
+        cb = update.get("callback_query")
+        msg = cb.get("message") if isinstance(cb, dict) else update.get("message")
+        author = cb.get("from") if isinstance(cb, dict) else (msg or {}).get("from")
+        msg, author = msg or {}, author or {}
+        chat = msg.get("chat") or {}
+        uid, cid = author.get("id"), chat.get("id")
+        allowed = (chat.get("type") == "dm" and uid in self.owners and isinstance(cid, str))
+        if not allowed:
+            self.state.claim(n)
+            if isinstance(cb, dict):
+                await self.io.ack(cb["id"], "Доступ только владельцу в личных сообщениях")
+            elif chat.get("type") == "dm" and (msg.get("text") or "").strip() == "/whoami":
+                await self.io.show(cid, f"Ваш ID: <code>{esc(uid)}</code>\nДоступ к управлению не выдан.")
+            return
+        key = (uid, cid)
+        busy = key in self.tasks and not self.tasks[key].done()
+        # Persist deduplication before ack or starting a privileged operation.
+        self.state.claim(n, uid, cid)
+        if isinstance(cb, dict):
+            try:
+                await self.io.ack(cb["id"], "Предыдущая операция ещё выполняется" if busy else None)
+            except Exception:
+                self.state.finish(n)
+                raise
+        if busy:
+            self.state.finish(n)
+            if not cb:
+                await self.io.show(cid, "⏳ Предыдущая операция ещё выполняется. Дождитесь результата.")
+            return
+        e = Event(uid, cid, n, msg.get("message_id") if cb else None,
+                  msg.get("text") or "", cb.get("data") or "" if cb else "")
+        self.tasks[key] = asyncio.create_task(self._handle(e), name="awg-gus-action")
+
+    async def _handle(self, e):
+        completed = True
+        try:
+            if e.uid in self.interrupted:
+                self.interrupted.remove(e.uid)
+                await self.io.show(e.chat, "⚠️ Предыдущий запуск прервался во время обработки. "
+                                   "Проверьте состояние: незавершённые действия автоматически не повторяются.")
+            if e.data:
+                await self.action(e)
+            else:
+                await self.message(e)
+        except asyncio.CancelledError:
+            completed = False
+            raise
+        except (AwgError, ValueError) as exc:
+            await self._error(e, str(exc))
+        except Exception as exc:
+            # API/transport exceptions may contain a sensitive URL. Log class only.
+            log.error("Handler failed: %s (update %s)", type(exc).__name__, e.update_id)
+            await self._error(e, "Ошибка связи или обработки. Если действие изменяло сервер, проверьте результат перед повтором.")
+        finally:
+            if completed:
+                self.state.finish(e.update_id)
+
+    def cancel_confirmations(self, e):
+        self.confirmations = {k: v for k, v in self.confirmations.items() if v[:2] != (e.uid, e.chat)}
+
+    async def _error(self, e, text):
+        with contextlib.suppress(Exception):
+            await self.screen(e, "❌ " + esc(redacted(text)[:650]))
+
+    async def message(self, e):
+        text = e.text.strip()
+        command = text.split(maxsplit=1)[0].split("@", 1)[0] if text else ""
+        if command.startswith("/"):
+            self.cancel_confirmations(e)
+        if command in {"/start", "/menu", "/status", "/cancel"}:
+            self.steps.pop((e.uid, e.chat), None)
+            await self.home(e)
+        elif command == "/clients":
+            await self.list_clients(e)
+        elif command == "/whoami":
+            await self.screen(e, f"Ваш ID: <code>{esc(e.uid)}</code>\nДоступ: владелец.")
+        elif command == "/help":
+            await self.screen(e, "<b>AWG для Гуся</b>\n/menu — главное меню\n/clients — клиенты\n"
+                              "/cancel — отменить ввод\n/whoami — ваш ID\n\n"
+                              "Изменения клиентов общие с Telegram-ботом: оба управляют одним awg2.")
+        elif command == "/new":
+            await self.prompt(e, "add", "", "Имя нового клиента: латиница, цифры, _ и -, до 32 символов.")
+        elif (e.uid, e.chat) in self.steps:
+            await self.input(e, text)
+        else:
+            await self.home(e)
+
+    async def home(self, e):
+        d = (await self.api.call("status")).get("data") or {}
+        s = d.get("server") or {}
+        state = "🟢 работает" if s.get("up") else "🔴 не поднят"
+        text = (f"<b>🪿 AWG для Гуся · {__version__}</b>\n"
+                f"Toolza: {esc(d.get('version', '?'))}\n"
+                f"Сервер: {esc(d.get('host', '?'))}\nAWG: {state}\n"
+                f"Клиенты: {s.get('clients', 0)} · онлайн {s.get('online', 0)}\n"
+                f"Протокол: {esc(s.get('proto', '?'))} · порт {esc(s.get('port', '?'))}")
+        await self.screen(e, text, [
+            [button("👥 Клиенты", "list:0"), button("➕ Создать", "new")],
+            [button("🖥 Сервер", "server"), button("🩺 Диагностика", "diag")],
+            [button("💾 Резервная копия", "backup"), button("📦 Экспорт клиентов", "export")],
+            [button("🔔 Уведомления", "notices"), button("ℹ️ О боте", "about")],
+            [button("🔄 Обновить", "home")]])
+
+    async def list_clients(self, e, page=0):
+        rows = sorted(await self.clients(), key=lambda c: (not c.get("online"), c["name"].lower()))
+        page = min(max(0, page), max(0, (len(rows) - 1) // PAGE))
+        buttons = [[button(f"{'🚫' if c.get('blocked') else '🟢' if c.get('online') else '⚪'} {c['name']}",
+                           "client:" + c["name"])] for c in rows[page * PAGE:(page + 1) * PAGE]]
+        nav = []
+        if page:
+            nav.append(button("←", f"list:{page-1}"))
+        if (page + 1) * PAGE < len(rows):
+            nav.append(button("→", f"list:{page+1}"))
+        if nav:
+            buttons.append(nav)
+        buttons += [[button("➕ Создать", "new"), button("🔄 Обновить", f"list:{page}")], HOME]
+        await self.screen(e, f"<b>👥 Клиенты: {len(rows)}</b>\nСтраница {page+1}. Выберите клиента.", buttons)
+
+    async def card(self, e, name):
+        c = await self.client(name)
+        exp = c.get("expires")
+        expiry = time.strftime("%Y-%m-%d %H:%M", time.localtime(exp)) if exp else "без ограничения"
+        text = (f"<b>👤 {esc(name)}</b>\n{client_status(c)}\nIP: <code>{esc(c.get('ip', ''))}</code>\n"
+                f"Трафик: ↓ {size(c.get('rx'))} · ↑ {size(c.get('tx'))}\nСрок: {expiry} (время сервера)\n")
+        text += (f"Лимит: {size(c.get('used'))} / {size(c['limit'])} ({esc(c.get('period', 'month'))})\n"
+                 if c.get("limit") else "Лимит: нет\n")
+        text += f"Скорость: {esc(c.get('speed') or 'не ограничена')}" + (" Мбит/с" if c.get("speed") else "")
+        watching = self.state.watched(e.uid, name)
+        await self.screen(e, text, [
+            [button("📄 Конфиг + QR", f"conf:{name}"), button("🔄 Обновить", f"client:{name}")],
+            [button("📅 Срок", f"expiry:{name}"), button("📊 Лимит", f"limit:{name}")],
+            [button("🚀 Скорость", f"speed:{name}"), button("✏️ Имя", f"rename:{name}")],
+            [button("🔑 Новый ключ", f"reissue:{name}"), button("🗑 Удалить", f"delete:{name}")],
+            [button("🔕 Не следить" if watching else "🔔 Следить", f"watch:{name}"),
+             button("♻️ Сбросить трафик", f"reset:{name}")],
+            [button("← Клиенты", "list:0")], HOME])
+
+    async def action(self, e):
+        op, _, arg = e.data.partition(":")
+        if op != "yes":
+            self.steps.pop((e.uid, e.chat), None)
+            self.cancel_confirmations(e)
+        if op == "home":
+            await self.home(e)
+        elif op == "list":
+            await self.list_clients(e, int(arg) if arg.isdigit() else 0)
+        elif op == "new":
+            await self.prompt(e, "add", "", "Имя нового клиента: латиница, цифры, _ и -, до 32 символов.")
+        elif op == "client":
+            await self.card(e, arg)
+        elif op == "conf":
+            await self.client(arg)
+            await self.send_config(e, arg)
+        elif op == "expiry":
+            await self.client(arg)
+            await self.screen(e, f"<b>Срок: {esc(arg)}</b>\nОтсчитывается от момента применения.", [
+                [button("1 день", f"exp:{arg}:+1d"), button("7 дней", f"exp:{arg}:+7d")],
+                [button("30 дней", f"exp:{arg}:+30d"), button("Без срока", f"exp:{arg}:off")],
+                [button("← Клиент", f"client:{arg}")]])
+        elif op == "exp":
+            name, _, value = arg.partition(":")
+            await self.client(name)
+            args = ["client", "unexpire", name] if value == "off" else ["client", "expire", name, value]
+            await self.confirm(e, f"Изменить срок {esc(name)}: {esc(value)}?", args, name)
+        elif op in {"rename", "limit", "speed"}:
+            await self.client(arg)
+            prompt = {"rename": "Новое имя: латиница, цифры, _ и -, до 32 символов.",
+                      "limit": "Лимит: например 50G или 500M. Добавьте total для общего лимита: 50G total.\n"
+                               "По умолчанию — за месяц. off — снять ограничение.",
+                      "speed": "Скорость в Мбит/с: целое число, например 20. off — снять ограничение."}[op]
+            await self.prompt(e, op, arg, prompt)
+        elif op in {"delete", "reissue", "reset"}:
+            await self.client(arg)
+            verb, label = {"delete": ("del", "Удалить клиента и его доступ"),
+                           "reissue": ("reissue", "Перевыпустить ключ: старый конфиг перестанет работать"),
+                           "reset": ("limit-reset", "Сбросить счётчик лимита трафика")}[op]
+            await self.confirm(e, f"{label}: <b>{esc(arg)}</b>?", ["client", verb, arg], arg)
+        elif op == "watch":
+            await self.client(arg)
+            self.state.watch(e.uid, arg)
+            await self.card(e, arg)
+        elif op == "newexp":
+            draft = self.state.get(f"draft:{e.uid}:{e.chat}")
+            if not draft or time.time() - draft["time"] > 600:
+                raise ValueError("Ввод устарел. Создайте клиента заново.")
+            value = arg
+            args = ["client", "add", draft["name"], "mimicry=server"]
+            if value != "off":
+                args.append("expire=" + value)
+            await self.confirm(e, f"Создать <b>{esc(draft['name'])}</b>?\nСрок: {esc(value)}; мимикрия сервера.", args, draft["name"])
+        elif op == "yes":
+            await self.execute(e, arg)
+        elif op == "server":
+            d = (await self.api.call("server", "info")).get("data") or {}
+            text = "<b>🖥 Сервер AWG</b>\n" + "\n".join(
+                f"{label}: {esc(d.get(key, '—'))}" for key, label in
+                [("up", "Работает"), ("proto", "Протокол"), ("profile", "Профиль"),
+                 ("endpoint", "Endpoint"), ("net", "Подсеть"), ("mtu", "MTU"), ("clients", "Клиенты")])
+            await self.screen(e, text, [[button("🔄 Перезапустить AWG", "restart")], HOME])
+        elif op == "restart":
+            await self.confirm(e, "Перезапустить интерфейс AWG? Соединения VPN кратковременно прервутся.", ["server", "restart"])
+        elif op == "diag":
+            r = await self.api.call("diag", "status")
+            text = redacted(r.get("log") or "Диагностика завершена")
+            text = re.sub(r"\x1b\[[0-9;]*[A-Za-z]", "", text)
+            await self.screen(e, "<b>🩺 Диагностика</b>\n<pre>" + esc(text[-1800:]) + "</pre>")
+        elif op in {"backup", "export"}:
+            args = ["backup", "create"] if op == "backup" else ["clients", "export"]
+            await self.confirm(e, "Создать и прислать архив в эту личную беседу? Архив содержит ключи VPN.", args)
+        elif op == "notices":
+            on = self.state.get(f"notify:{e.uid}", False)
+            watches = [r[0] for r in self.state.db.execute("SELECT name FROM watches WHERE uid=?", (e.uid,))]
+            await self.screen(e, "<b>🔔 Уведомления</b>\nСостояние сервера: " + ("включены" if on else "выключены") +
+                              "\nНаблюдение за клиентами: " + esc(", ".join(watches) or "нет") +
+                              "\nПроверка раз в минуту. Клиент офлайн после 5 минут без рукопожатия.\n"
+                              "При старте бот запоминает состояние без рассылки.",
+                              [[button("Выключить серверные" if on else "Включить серверные", "notify")], HOME])
+        elif op == "notify":
+            key = f"notify:{e.uid}"
+            self.state.set(key, not self.state.get(key, False))
+            e.data = "notices"
+            await self.action(e)
+        elif op == "about":
+            await self.screen(e, f"<b>AWG для Гуся {__version__}</b>\n"
+                              "Отдельная служба: awg-gus-bot. Управление тем же awg2, что и в Telegram.\n"
+                              "Обновление на сервере: <code>sudo awg-gus-bot update</code>\n"
+                              "Проверка: <code>sudo awg-gus-bot check</code>\n"
+                              "В этой версии: клиенты, ключи/QR, сроки, трафик, скорость, диагностика, "
+                              "бэкап и экспорт, перезапуск AWG, уведомления.\n"
+                              "Установка AWG, туннели, обновление ядра и восстановление бэкапа — через меню awg2.")
+        else:
+            raise ValueError("Кнопка устарела. Откройте /menu.")
+
+    async def prompt(self, e, kind, name, text):
+        self.steps[(e.uid, e.chat)] = (kind, name, time.monotonic() + 600)
+        await self.screen(e, text + "\n\nОтмена: /cancel", [HOME])
+
+    async def input(self, e, text):
+        key = (e.uid, e.chat)
+        kind, name, expires = self.steps[key]
+        if time.monotonic() > expires:
+            self.steps.pop(key, None)
+            raise ValueError("Ввод устарел. Откройте меню заново.")
+        if kind in {"add", "rename"}:
+            if not NAME.fullmatch(text):
+                raise ValueError("Имя: латиница, цифры, _ и -, от 1 до 32 символов. Повторите ввод.")
+            if any(c["name"] == text for c in await self.clients()):
+                raise ValueError("Такое имя уже существует. Введите другое.")
+            if kind == "add":
+                self.state.set(f"draft:{e.uid}:{e.chat}", {"name": text, "time": time.time()})
+                await self.screen(e, f"Срок нового клиента <b>{esc(text)}</b>:", [
+                    [button("1 день", "newexp:+1d"), button("7 дней", "newexp:+7d")],
+                    [button("30 дней", "newexp:+30d"), button("Без срока", "newexp:off")], HOME])
+            else:
+                await self.confirm(e, f"Переименовать {esc(name)} → {esc(text)}?", ["client", "rename", name, text], text)
+        elif kind == "limit":
+            parts = text.split()
+            value = parts[0] if parts else ""
+            value = value if value == "off" else value.upper()
+            period = parts[1] if len(parts) == 2 else "month"
+            if len(parts) > 2 or not LIMIT.fullmatch(value) or period not in {"month", "total"}:
+                raise ValueError("Введите 50G, 500M, 50G total или off.")
+            await self.confirm(e, f"Лимит {esc(name)}: {esc(value)} ({period})?", ["client", "limit", name, value, period], name)
+        elif kind == "speed":
+            if not SPEED.fullmatch(text):
+                raise ValueError("Введите целое число Мбит/с или off.")
+            await self.confirm(e, f"Скорость {esc(name)}: {esc(text)} Мбит/с?", ["client", "speed", name, text], name)
+        self.steps.pop(key, None)
+
+    async def confirm(self, e, text, args, name=""):
+        from .core import validate_command
+        validate_command(args)
+        now = time.monotonic()
+        self.confirmations = {k: v for k, v in self.confirmations.items()
+                              if v[0:2] != (e.uid, e.chat) and v[2] > now}
+        token = secrets.token_hex(8)
+        self.confirmations[token] = (e.uid, e.chat, now + 120, args, name)
+        await self.screen(e, text + "\n\nПодтверждение действует 2 минуты.",
+                          [[button("✅ Подтвердить", "yes:" + token), button("Отмена", "home")]])
+
+    async def execute(self, e, token):
+        pending = self.confirmations.get(token)
+        if not pending or pending[:2] != (e.uid, e.chat) or pending[2] < time.monotonic():
+            raise ValueError("Подтверждение устарело или уже использовано. Повторите действие из меню.")
+        self.confirmations.pop(token)
+        args, name = pending[3:]
+        await self.screen(e, "⏳ Выполняю…")
+        r = await self.api.call(*args)
+        await self.screen(e, "✅ Выполнено", [[button("👥 Клиенты", "list:0")], HOME])
+        if args[:2] in (["client", "add"], ["client", "reissue"]):
+            await self.send_config(e, name)
+        elif args[:2] in (["backup", "create"], ["clients", "export"]):
+            data = r.get("data") or {}
+            path = Path(data.get("path") or data.get("file") or "")
+            if not path.is_absolute() or not path.is_file():
+                raise AwgError("Архив создан, но awg2 не вернул путь к файлу.")
+            if path.stat().st_size > FILE_MAX:
+                await self.io.show(e.chat, "Архив больше 25 МиБ и сохранён на сервере. Заберите его через SSH.")
+            else:
+                await self.io.call("send_message", chat_id=e.chat, text="Архив AWG: содержит ключи VPN.", files=[InputFile(path)])
+
+    async def send_config(self, e, name):
+        data = (await self.api.call("client", "conf", name)).get("data") or {}
+        text = data.get("text")
+        if not isinstance(text, str) or not text or len(text.encode()) > FILE_MAX:
+            raise AwgError("Конфиг отсутствует или превышает допустимый размер.")
+        files = [InputFile(text.encode(), filename=name + ".conf", content_type="text/plain")]
+        note = ""
+        if len(text.encode()) <= 2800 and shutil.which("qrencode"):
+            proc = await asyncio.create_subprocess_exec("qrencode", "-t", "PNG", "-o", "-", "-s", "8", "-m", "2",
+                         stdin=asyncio.subprocess.PIPE, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.DEVNULL)
+            try:
+                png, _ = await asyncio.wait_for(proc.communicate(text.encode()), 10)
+                if proc.returncode == 0 and png.startswith(b"\x89PNG\r\n\x1a\n"):
+                    files.append(InputFile(png, filename=name + ".png", content_type="image/png"))
+                else:
+                    note = " QR не сформирован; импортируйте файл."
+            except (asyncio.TimeoutError, asyncio.CancelledError) as exc:
+                with contextlib.suppress(ProcessLookupError):
+                    proc.kill()
+                await proc.wait()
+                if isinstance(exc, asyncio.CancelledError):
+                    raise
+                note = " QR не сформирован; импортируйте файл."
+        else:
+            note = " QR недоступен или конфиг слишком длинный; импортируйте файл."
+        await self.io.call("send_message", chat_id=e.chat, text=f"{name} — импорт в AmneziaVPN / AmneziaWG.{note}", files=files)
+
+    async def monitor_tick(self):
+        watches = list(self.state.db.execute("SELECT uid,name FROM watches"))
+        notify = [uid for uid in self.owners if self.state.get(f"notify:{uid}", False)]
+        if not watches and not notify:
+            return
+        clients = {c["name"]: c for c in await self.clients()} if watches else {}
+        current = {}
+        for uid, name in watches:
+            if uid not in self.owners:
+                continue
+            c = clients.get(name)
+            status = "удалён" if c is None else "заблокирован" if c.get("blocked") else (
+                "онлайн" if c.get("handshake") and float(c.get("ago") or 0) < 300 else "офлайн")
+            current[(uid, name)] = status
+        if notify:
+            d = (await self.api.call("server", "info")).get("data") or {}
+            for uid in notify:
+                current[(uid, "Сервер AWG")] = "работает" if d.get("up") else "не поднят"
+        for key, status in current.items():
+            previous = self.observed.get(key)
+            if previous is not None and previous != status:
+                row = self.state.db.execute("SELECT chat FROM chats WHERE uid=?", (key[0],)).fetchone()
+                if row:
+                    await self.io.show(row[0], f"🔔 <b>{esc(key[1])}</b>: {esc(previous)} → {esc(status)}")
+        self.observed = current
+
+    async def monitor(self):
+        while True:
+            try:
+                await self.monitor_tick()
+            except Exception as exc:
+                log.warning("Monitor failed: %s", type(exc).__name__)
+            await asyncio.sleep(60)
+
+    async def run(self):
+        webhook = await self.io.call("get_webhook_info")
+        if webhook.get("url"):
+            raise ValueError("У этого бота уже настроен webhook. Используйте отдельного бота Гуся.")
+        await self.io.call("set_my_commands", commands=[
+            {"command": "menu", "description": "Управление AWG"},
+            {"command": "clients", "description": "Клиенты VPN"},
+            {"command": "new", "description": "Создать клиента"},
+            {"command": "cancel", "description": "Отменить ввод"},
+            {"command": "help", "description": "Помощь"}])
+        monitor = asyncio.create_task(self.monitor())
+        delay = 1
+        try:
+            while True:
+                try:
+                    updates = await self.io.call("get_updates", offset=self.state.get("offset", 0), timeout=30,
+                                                 allowed_updates=["message", "callback_query"])
+                    for update in updates:
+                        await self.process(update)
+                    delay = 1
+                except GusVoiceApiError as exc:
+                    if exc.code in {401, 403, 404, 409}:
+                        log.error("Polling stopped: HTTP %s. Check token, enabled bots, webhook and duplicate processes.", exc.code)
+                        raise
+                    log.warning("Polling retry: HTTP %s", exc.code)
+                    await asyncio.sleep(delay)
+                    delay = min(30, delay * 2)
+                except (OSError, TimeoutError) as exc:
+                    log.warning("Network retry: %s", type(exc).__name__)
+                    await asyncio.sleep(delay)
+                    delay = min(30, delay * 2)
+        finally:
+            monitor.cancel()
+            for task in self.tasks.values():
+                task.cancel()
+            await asyncio.gather(monitor, *self.tasks.values(), return_exceptions=True)
diff --git a/awg_gus/core.py b/awg_gus/core.py
new file mode 100644
index 0000000..39cfa0e
--- /dev/null
+++ b/awg_gus/core.py
@@ -0,0 +1,215 @@
+"""Local AWG API, private state, and GusVoice delivery. No shell commands from chat."""
+from __future__ import annotations
+
+import asyncio
+import contextlib
+import html
+import json
+import logging
+import os
+from pathlib import Path
+import re
+import signal
+import sqlite3
+import time
+
+from gusvoice_bot import AsyncClient, GusVoiceApiError
+
+log = logging.getLogger("awg-gus")
+NAME = re.compile(r"[A-Za-z0-9_-]{1,32}\Z")
+LIMIT = re.compile(r"(?:[1-9][0-9]{0,5}[MG]|off)\Z")
+SPEED = re.compile(r"(?:[1-9][0-9]{0,5}|off)\Z")
+EXPIRE = re.compile(r"\+[1-9][0-9]{0,3}[dh]\Z")
+
+
+def esc(value):
+    return html.escape(str(value if value is not None else ""))
+
+
+def redacted(value):
+    text = str(value)
+    text = re.sub(r"(?im)(PrivateKey|PresharedKey|BOT_TOKEN|password)\s*[:=]\s*\S+", r"\1=[скрыто]", text)
+    return re.sub(r"gvb_[A-Za-z0-9_-]+", "[токен скрыт]", text)
+
+
+def size(value):
+    n = float(value or 0)
+    for unit in ("Б", "КиБ", "МиБ", "ГиБ", "ТиБ"):
+        if abs(n) < 1024 or unit == "ТиБ":
+            return f"{n:.1f} {unit}"
+        n /= 1024
+
+
+class AwgError(RuntimeError):
+    pass
+
+
+def validate_command(args):
+    """Second allow-list immediately before a privileged subprocess starts."""
+    a = tuple(args)
+    if a in {("version",), ("status",), ("server", "info"), ("server", "restart"),
+             ("clients", "list"), ("clients", "export"), ("diag", "status"),
+             ("backup", "create"), ("backup", "list"), ("tunnels", "status")}:
+        return
+    if len(a) >= 3 and a[0] == "client" and NAME.fullmatch(a[2]):
+        op = a[1]
+        if len(a) == 3 and op in {"conf", "del", "reissue", "unexpire", "limit-reset"}:
+            return
+        if len(a) == 4:
+            if op == "rename" and NAME.fullmatch(a[3]):
+                return
+            if op == "expire" and EXPIRE.fullmatch(a[3]):
+                return
+            if op == "speed" and SPEED.fullmatch(a[3]):
+                return
+        if len(a) == 5 and op == "limit" and LIMIT.fullmatch(a[3]) and a[4] in {"month", "total"}:
+            return
+        if op == "add" and len(a) in {4, 5} and a[3] == "mimicry=server":
+            if len(a) == 4 or (a[4].startswith("expire=") and EXPIRE.fullmatch(a[4][7:])):
+                return
+    if len(a) == 4 and a[:2] == ("traffic", "daily") and (a[2] == "all" or NAME.fullmatch(a[2])) and a[3] == "7":
+        return
+    raise ValueError("Недопустимая операция awg2")
+
+
+class Awg:
+    def __init__(self, binary="/usr/local/bin/awg2"):
+        self.binary = binary
+        self.lock = asyncio.Lock()
+
+    async def call(self, *args, timeout=120):
+        validate_command(args)
+        # Upstream awg2 also uses a flock shared with the Telegram bot.
+        async with self.lock:
+            try:
+                proc = await asyncio.create_subprocess_exec(
+                    self.binary, "api", *args, stdin=asyncio.subprocess.DEVNULL,
+                    stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE,
+                    start_new_session=(os.name == "posix"))
+            except OSError as e:
+                raise AwgError("Не удалось запустить awg2. Проверьте установку и путь к программе.") from e
+            try:
+                out, _ = await asyncio.wait_for(proc.communicate(), timeout)
+            except (asyncio.TimeoutError, asyncio.CancelledError) as e:
+                with contextlib.suppress(ProcessLookupError):
+                    if os.name == "posix":
+                        os.killpg(proc.pid, signal.SIGTERM)
+                    else:
+                        proc.kill()
+                try:
+                    await asyncio.wait_for(proc.communicate(), 5)
+                except asyncio.TimeoutError:
+                    with contextlib.suppress(ProcessLookupError):
+                        if os.name == "posix":
+                            os.killpg(proc.pid, signal.SIGKILL)
+                        else:
+                            proc.kill()
+                    await proc.communicate()
+                if isinstance(e, asyncio.CancelledError):
+                    raise
+                raise AwgError("awg2 не ответил вовремя. Проверьте результат в меню: операция могла выполниться.") from e
+            try:
+                result = json.loads(out.decode("utf-8", errors="replace").strip().splitlines()[-1])
+                if not isinstance(result, dict) or not isinstance(result.get("ok"), bool):
+                    raise ValueError
+            except (ValueError, IndexError) as e:
+                raise AwgError("awg2 вернул ответ без JSON API. Нужна версия AWG Toolza с командой awg2 api.") from e
+            if not result["ok"] or proc.returncode:
+                raise AwgError(redacted(result.get("error") or "awg2 завершился с ошибкой")[:500])
+            return result
+
+
+class State:
+    def __init__(self, path, identity):
+        path = Path(path)
+        path.parent.mkdir(parents=True, exist_ok=True, mode=0o700)
+        self.db = sqlite3.connect(path)
+        if os.name == "posix":
+            path.chmod(0o600)
+        self.db.executescript("""
+            CREATE TABLE IF NOT EXISTS kv(key TEXT PRIMARY KEY, value TEXT NOT NULL);
+            CREATE TABLE IF NOT EXISTS chats(uid TEXT PRIMARY KEY, chat TEXT NOT NULL);
+            CREATE TABLE IF NOT EXISTS watches(uid TEXT, name TEXT, PRIMARY KEY(uid,name));
+            CREATE TABLE IF NOT EXISTS pending(id INTEGER PRIMARY KEY, uid TEXT, chat TEXT);
+        """)
+        old = self.get("identity")
+        if old is not None and old != identity:
+            self.db.close()
+            raise ValueError("Состояние принадлежит другому боту/инстансу. Укажите отдельный state_dir.")
+        self.set("identity", identity)
+
+    def get(self, key, default=None):
+        row = self.db.execute("SELECT value FROM kv WHERE key=?", (key,)).fetchone()
+        return json.loads(row[0]) if row else default
+
+    def set(self, key, value):
+        with self.db:
+            self.db.execute("INSERT OR REPLACE INTO kv VALUES (?,?)", (key, json.dumps(value)))
+
+    def claim(self, update_id, uid=None, chat=None):
+        if update_id < self.get("offset", 0):
+            return False
+        # Persist BEFORE any mutation. Interrupted operations are reported, never replayed.
+        with self.db:
+            self.db.execute("INSERT OR REPLACE INTO kv VALUES ('offset',?)", (json.dumps(update_id + 1),))
+            if uid and chat:
+                self.db.execute("INSERT INTO pending VALUES (?,?,?)", (update_id, uid, chat))
+                self.db.execute("INSERT OR REPLACE INTO chats VALUES (?,?)", (uid, chat))
+        return True
+
+    def finish(self, update_id):
+        with self.db:
+            self.db.execute("DELETE FROM pending WHERE id=?", (update_id,))
+
+    def watch(self, uid, name):
+        with self.db:
+            if self.watched(uid, name):
+                self.db.execute("DELETE FROM watches WHERE uid=? AND name=?", (uid, name))
+                return False
+            self.db.execute("INSERT INTO watches VALUES (?,?)", (uid, name))
+            return True
+
+    def watched(self, uid, name):
+        return bool(self.db.execute("SELECT 1 FROM watches WHERE uid=? AND name=?", (uid, name)).fetchone())
+
+
+class Delivery:
+    """Throttle sends/edits together; acknowledge callbacks independently."""
+    def __init__(self, client):
+        self.client = client
+        self.locks = {}
+        self.next_send = {}
+
+    async def call(self, method, **params):
+        chat = params.get("chat_id")
+        if chat and method in {"send_message", "edit_message_text", "edit_message_reply_markup"}:
+            lock = self.locks.setdefault(chat, asyncio.Lock())
+            async with lock:
+                await asyncio.sleep(max(0, self.next_send.get(chat, 0) - time.monotonic()))
+                try:
+                    return await getattr(self.client, method)(**params)
+                finally:
+                    self.next_send[chat] = time.monotonic() + 1.1
+        return await getattr(self.client, method)(**params)
+
+    async def ack(self, callback_id, text=None):
+        try:
+            await self.call("answer_callback_query", callback_query_id=callback_id, text=text)
+        except GusVoiceApiError as e:
+            if e.code != 400:
+                raise
+
+    async def show(self, chat, text, buttons=None, message=None):
+        params = dict(chat_id=chat, text=text, parse_mode="HTML",
+                      reply_markup={"inline_keyboard": buttons} if buttons else None)
+        if message:
+            try:
+                return await self.call("edit_message_text", message_id=message, **params)
+            except GusVoiceApiError as e:
+                if e.code != 400:
+                    raise
+        return await self.call("send_message", **params)
+
+
+def client_for(config):
+    return AsyncClient(config["token"], config["url"], discover=False, max_retries=3)
diff --git a/awg_gus/main.py b/awg_gus/main.py
new file mode 100644
index 0000000..c6e7ce7
--- /dev/null
+++ b/awg_gus/main.py
@@ -0,0 +1,213 @@
+from __future__ import annotations
+
+import argparse
+import asyncio
+import contextlib
+import getpass
+import hmac
+import json
+import logging
+import os
+from pathlib import Path
+import secrets
+import signal
+import sys
+import time
+from urllib.parse import urlsplit
+import uuid
+
+from gusvoice_bot import Client, GusVoiceApiError
+
+from . import __version__
+from .bot import Bot
+from .core import Awg, Delivery, State, client_for
+
+DEFAULT_CONFIG = "/etc/awg-gus-bot.json"
+DEFAULT_STATE = "/var/lib/awg-gus-bot"
+
+
+def validate_url(url):
+    u = urlsplit(url.strip())
+    if u.scheme != "https" or not u.hostname or u.username or u.password or u.query or u.fragment:
+        raise ValueError("Укажите HTTPS-адрес Гуся без логина, пароля и параметров.")
+    if u.path.rstrip("/") not in {"", "/api"}:
+        raise ValueError("Нужен адрес сайта/сервера API, без /api/bot/v1.")
+    return url.strip().rstrip("/").removesuffix("/api")
+
+
+def validate_config(d):
+    validate_url(d["url"])
+    if not isinstance(d.get("token"), str) or not d["token"].startswith("gvb_"):
+        raise ValueError("Требуется токен бота Гуся gvb_…")
+    if not isinstance(d.get("owners"), list) or not d["owners"]:
+        raise ValueError("Не задан владелец")
+    for owner in d["owners"]:
+        uuid.UUID(owner)
+    uuid.UUID(d["bot_id"])
+    for key in ("awg2", "state_dir"):
+        if not Path(d[key]).is_absolute():
+            raise ValueError(f"{key}: нужен абсолютный путь")
+    return d
+
+
+def load_config(path):
+    with open(path, encoding="utf-8") as f:
+        return validate_config(json.load(f))
+
+
+def save_config(path, data):
+    path = Path(path)
+    path.parent.mkdir(parents=True, exist_ok=True)
+    tmp = path.with_name(path.name + ".new")
+    fd = os.open(tmp, os.O_WRONLY | os.O_CREAT | os.O_TRUNC, 0o600)
+    try:
+        with os.fdopen(fd, "w", encoding="utf-8") as f:
+            json.dump(data, f, ensure_ascii=False, indent=2)
+            f.write("\n")
+            f.flush()
+            os.fsync(f.fileno())
+        if os.name == "posix":
+            tmp.chmod(0o600)
+        os.replace(tmp, path)
+    finally:
+        with contextlib.suppress(FileNotFoundError):
+            tmp.unlink()
+
+
+def check_features(me):
+    uuid.UUID(me["id"])
+    # HTML rendering was introduced with API 3; do not silently send HTML to an older server.
+    if int(me.get("api_version") or 0) < 3:
+        raise ValueError("Нужен GusVoice Bot API 3 или новее (кнопки, команды и HTML). Обновите Гуся.")
+    features = set(me.get("features") or [])
+    if not {"keyboards", "commands", "parse_mode"}.issubset(features):
+        raise ValueError("Инстанс не объявляет необходимые возможности: keyboards, commands, parse_mode.")
+
+
+def pair(client, code, *, duration=600, now=time.monotonic):
+    deadline = now() + duration
+    offset = 0
+    while now() < deadline:
+        updates = client.get_updates(offset=offset, timeout=10, allowed_updates=["message"])
+        for u in updates:
+            offset = max(offset, int(u["update_id"]) + 1)
+            msg = u.get("message") or {}
+            chat, author = msg.get("chat") or {}, msg.get("from") or {}
+            text = (msg.get("text") or "").strip()
+            if chat.get("type") != "dm" or author.get("bot"):
+                continue
+            if not hmac.compare_digest(text.encode("utf-8"), ("/start " + code).encode("utf-8")):
+                continue
+            try:
+                uuid.UUID(author["id"])
+                uuid.UUID(chat["id"])
+            except (KeyError, ValueError, TypeError, AttributeError):
+                continue
+            client.get_updates(offset=offset, timeout=0, allowed_updates=[])
+            return author["id"], chat["id"], offset
+    raise ValueError("Время привязки истекло. Запустите настройку ещё раз.")
+
+
+def configure(args):
+    if not sys.stdin.isatty():
+        raise ValueError("Настройка требует терминала. Скачайте install.sh в файл и запустите sudo bash install.sh.")
+    print("AWG для Гуся: настройка отдельного бота. Mini App не используется.")
+    url = validate_url(input("HTTPS-адрес Гуся: "))
+    token = getpass.getpass("Токен нового бота gvb_… (ввод скрыт): ").strip()
+    if not token.startswith("gvb_"):
+        raise ValueError("Токен должен начинаться с gvb_")
+    client = Client(token, url)
+    me = client.get_me()
+    check_features(me)
+    if client.get_webhook_info().get("url"):
+        raise ValueError("У этого бота настроен webhook. Создайте отдельного бота для AWG.")
+    resolved = validate_url(client.api_url())
+    code = secrets.token_urlsafe(18)
+    print(f"\nОткройте личную беседу с @{me.get('username', '')} в Гусе.")
+    print("Отправьте следующее сообщение (код действует 10 минут):\n")
+    print("/start " + code)
+    print("\nЖду сообщение…", flush=True)
+    owner, chat, offset = pair(client, code)
+    d = {"url": resolved, "token": token, "owners": [owner], "bot_id": me["id"],
+         "awg2": args.awg2, "state_dir": args.state_dir}
+    validate_config(d)
+    state = State(Path(args.state_dir) / "state.sqlite3", resolved + "|" + me["id"])
+    state.set("offset", offset)
+    with state.db:
+        state.db.execute("INSERT OR REPLACE INTO chats VALUES (?,?)", (owner, chat))
+    state.db.close()
+    save_config(args.config, d)
+    # Pairing is complete at this point; a delivery failure must not discard the valid config.
+    with contextlib.suppress(Exception):
+        client.send_message(chat, "✅ Аккаунт привязан. После завершения установки отправьте /menu.")
+    print("Владелец привязан. Конфигурация сохранена.")
+
+
+async def check(args):
+    d = load_config(args.config)
+    me = await client_for(d).get_me()
+    check_features(me)
+    if me["id"] != d["bot_id"]:
+        raise ValueError("Токен принадлежит другому боту. Повторите настройку с отдельным state_dir.")
+    if (await client_for(d).get_webhook_info()).get("url"):
+        raise ValueError("Задан webhook: нужен отдельный бот для polling.")
+    await Awg(d["awg2"]).call("version", timeout=30)
+    print(f"OK: AWG для Гуся {__version__}; GusVoice API {me['api_version']}; awg2 api отвечает.")
+
+
+async def run(args):
+    d = load_config(args.config)
+    client = client_for(d)
+    me = await client.get_me()
+    check_features(me)
+    if me["id"] != d["bot_id"]:
+        raise ValueError("Неверная привязка бота. Выполните setup.")
+    state = State(Path(d["state_dir"]) / "state.sqlite3", d["url"] + "|" + d["bot_id"])
+    # flock prevents accidental second local process; the API prevents remote duplicate consumers.
+    import fcntl
+    lock = open(Path(d["state_dir"]) / "process.lock", "a")
+    try:
+        fcntl.flock(lock, fcntl.LOCK_EX | fcntl.LOCK_NB)
+    except BlockingIOError as e:
+        raise ValueError("Этот бот уже запущен") from e
+    bot = Bot(d, Awg(d["awg2"]), Delivery(client), state)
+    task = asyncio.create_task(bot.run())
+    loop = asyncio.get_running_loop()
+    for sig in (signal.SIGTERM, signal.SIGINT):
+        loop.add_signal_handler(sig, task.cancel)
+    logging.info("AWG Gus bot %s started", __version__)
+    try:
+        await task
+    except asyncio.CancelledError:
+        pass
+    finally:
+        state.db.close()
+        lock.close()
+
+
+def main():
+    parser = argparse.ArgumentParser(description="AWG Toolza bot for GusVoice")
+    parser.add_argument("command", choices=["run", "setup", "check"])
+    parser.add_argument("--config", default=DEFAULT_CONFIG)
+    parser.add_argument("--awg2", default="/usr/local/bin/awg2")
+    parser.add_argument("--state-dir", default=DEFAULT_STATE)
+    args = parser.parse_args()
+    os.umask(0o077)
+    logging.basicConfig(level=logging.INFO, format="%(asctime)s %(levelname)s %(message)s")
+    try:
+        if args.command == "setup":
+            configure(args)
+        else:
+            asyncio.run(check(args) if args.command == "check" else run(args))
+    except GusVoiceApiError as e:
+        print(f"Ошибка GusVoice API: HTTP {e.code}. Проверьте адрес, токен и включение ботов.", file=sys.stderr)
+        sys.exit(1)
+    except (ValueError, FileNotFoundError, KeyError) as e:
+        # No raw request URLs or token-bearing exception repr in logs.
+        print(str(e) if isinstance(e, ValueError) else "Не найден или неверно заполнен конфигурационный файл.", file=sys.stderr)
+        sys.exit(1)
+    except KeyboardInterrupt:
+        sys.exit(130)
+    except Exception as e:
+        print(f"Ошибка: {type(e).__name__}. Проверьте сеть, сертификаты и доступность awg2.", file=sys.stderr)
+        sys.exit(1)
diff --git a/install.sh b/install.sh
new file mode 100755
index 0000000..24c94ee
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,191 @@
+#!/usr/bin/env bash
+# AWG Gus bot: install/update only this service; existing awg2 and Telegram bot stay in place.
+set -Eeuo pipefail
+umask 077
+
+REPO_URL="${AWG_GUS_REPO_URL:-https://gitea.bvrdo.online/wenil/awg-gus-bot}"
+REF="${AWG_GUS_REF:-main}"
+BASE=/opt/awg-gus-bot
+CONF=/etc/awg-gus-bot.json
+STATE=/var/lib/awg-gus-bot
+SERVICE=awg-gus-bot.service
+SRC=""
+RECONFIGURE=0
+
+die() { printf 'Ошибка: %s\n' "$*" >&2; exit 1; }
+usage() {
+  cat <<'EOF'
+Установка/обновление отдельного AWG-бота для GusVoice:
+  sudo bash install.sh
+  sudo bash install.sh --src /path/to/awg-gus-bot
+  sudo bash install.sh --configure
+
+Нужны: Linux с systemd, Python 3.10+, установленный awg2 с JSON API.
+При первой установке запросит HTTPS-адрес Гуся и токен, затем покажет код привязки.
+Существующая служба awg-bot не меняется. VPN-клиенты у обоих ботов общие.
+EOF
+}
+
+while (($#)); do
+  case "$1" in
+    --src) [[ $# -ge 2 ]] || die 'После --src нужен каталог'; SRC="$2"; shift 2 ;;
+    --configure) RECONFIGURE=1; shift ;;
+    -h|--help) usage; exit 0 ;;
+    *) die "Неизвестный параметр: $1" ;;
+  esac
+done
+
+[[ $EUID -eq 0 ]] || die 'Запустите через sudo bash install.sh'
+[[ $(uname -s) == Linux ]] || die 'Устанавливается на Linux-сервер с awg2'
+command -v systemctl >/dev/null || die 'Нужен systemd'
+[[ -d /run/systemd/system ]] || die 'systemd не запущен'
+command -v flock >/dev/null || die 'Нужен flock (пакет util-linux)'
+mkdir -p /run/lock
+exec 9>/run/lock/awg-gus-install.lock
+flock -n 9 || die 'Другой установщик уже работает'
+AWG2="$(command -v awg2 || true)"
+[[ -n "$AWG2" ]] || die 'Сначала установите AWG Toolza: команда awg2 не найдена'
+
+missing=()
+for pair in 'python3:python3' 'curl:curl' 'tar:tar' 'qrencode:qrencode'; do
+  command -v "${pair%%:*}" >/dev/null || missing+=("${pair#*:}")
+done
+if ((${#missing[@]})); then
+  command -v apt-get >/dev/null || die "Установите вручную: ${missing[*]} и ca-certificates"
+  apt-get update -qq
+  DEBIAN_FRONTEND=noninteractive apt-get install -y -qq "${missing[@]}" ca-certificates
+fi
+PYTHON=$(command -v python3)
+python3 -c 'import sys; assert sys.version_info >= (3,10), "Нужен Python 3.10+"'
+"$AWG2" api version | python3 -c 'import sys,json; d=json.loads(sys.stdin.read().strip().splitlines()[-1]); sys.exit(0 if d.get("ok") is True else 1)' \
+  || die 'awg2 api version не отвечает. Обновите AWG Toolza штатным способом'
+
+TMP=$(mktemp -d /tmp/awg-gus-install.XXXXXXXX)
+old=""
+activated=0
+service_stopped=0
+configuring=0
+was_active=0
+systemctl is-active --quiet "$SERVICE" && was_active=1
+cleanup() {
+  local rc=$?
+  trap - EXIT
+  if ((rc != 0 && (activated || service_stopped || configuring))); then
+    printf 'Запуск новой версии не удался. Откатываю только службу Гуся.\n' >&2
+    systemctl stop "$SERVICE" || true
+    if ((activated)) && [[ -n "$old" ]]; then
+      ln -sfn "$old" "$BASE/.current-rollback"
+      mv -Tf "$BASE/.current-rollback" "$BASE/current"
+    elif ((activated)); then
+      rm -f "$BASE/current"
+    fi
+    if [[ -f "$TMP/config.before" ]]; then
+      install -m 600 "$TMP/config.before" "$CONF"
+    fi
+    if [[ -f "$TMP/unit.before" ]]; then
+      install -m 644 "$TMP/unit.before" "/etc/systemd/system/$SERVICE"
+    elif ((activated)) && [[ -z "$old" ]]; then
+      systemctl disable "$SERVICE" >/dev/null 2>&1 || true
+      rm -f "/etc/systemd/system/$SERVICE"
+    fi
+    if [[ -f "$TMP/command.before" ]]; then
+      install -m 755 "$TMP/command.before" /usr/local/bin/awg-gus-bot
+    elif ((activated)) && [[ -z "$old" ]]; then
+      rm -f /usr/local/bin/awg-gus-bot
+    fi
+    systemctl daemon-reload
+    if ((was_active)) && [[ -n "$old" ]]; then systemctl start "$SERVICE" || true; fi
+  fi
+  [[ "$TMP" == /tmp/awg-gus-install.* && -d "$TMP" ]] && rm -rf -- "$TMP"
+  exit "$rc"
+}
+trap cleanup EXIT
+
+if [[ -z "$SRC" ]]; then
+  [[ "$REPO_URL" == https://* && "$REPO_URL" != *'@'* ]] || die 'Источник должен быть HTTPS без учётных данных в URL'
+  [[ "$REF" =~ ^[A-Za-z0-9._-]+$ ]] || die 'Некорректная ветка/версия'
+  printf 'Скачиваю AWG Gus bot из %s (%s)…\n' "$REPO_URL" "$REF"
+  curl --proto '=https' --proto-redir '=https' --tlsv1.2 -fSL --retry 3 --connect-timeout 15 --max-time 180 \
+    "${REPO_URL%.git}/archive/$REF.tar.gz" -o "$TMP/source.tar.gz"
+  mkdir "$TMP/source"
+  # Reject paths escaping extraction root and any links/devices in the source archive.
+  python3 - "$TMP/source.tar.gz" "$TMP/source" <<'PY'
+import pathlib, sys, tarfile
+root = pathlib.Path(sys.argv[2]).resolve()
+with tarfile.open(sys.argv[1]) as archive:
+    for m in archive.getmembers():
+        p = (root / m.name).resolve()
+        if not p.is_relative_to(root) or not (m.isfile() or m.isdir()):
+            raise SystemExit('Небезопасный путь/тип в архиве')
+    archive.extractall(root)
+PY
+  dirs=("$TMP/source"/*)
+  ((${#dirs[@]} == 1)) && [[ -d "${dirs[0]}" ]] || die 'Неожиданная структура архива'
+  SRC="${dirs[0]}"
+fi
+SRC=$(cd "$SRC" && pwd -P)
+[[ -f "$SRC/run.py" && -f "$SRC/awg_gus/bot.py" && -f "$SRC/vendor/gusvoice_bot/client.py" && -f "$SRC/install.sh" ]] \
+  || die 'В источнике нет файлов AWG Gus bot'
+python3 -m compileall -q "$SRC/awg_gus" "$SRC/vendor/gusvoice_bot" "$SRC/run.py"
+mkdir -p "$BASE/releases" "$STATE"
+chmod 700 "$BASE" "$BASE/releases" "$STATE"
+release="$BASE/releases/$(date -u +%Y%m%dT%H%M%SZ)-$$"
+mkdir "$release"
+cp -a "$SRC/awg_gus" "$SRC/vendor" "$SRC/run.py" "$SRC/install.sh" "$SRC/awg-gus-bot" "$SRC/README.md" "$SRC/LICENSE" "$SRC/licenses" "$release/"
+chmod -R go-rwx "$release"
+printf '%s\n' "$REPO_URL" > "$release/source-url"
+printf '%s\n' "$REF" > "$release/source-ref"
+[[ ! -f "$CONF" ]] || cp -p "$CONF" "$TMP/config.before"
+[[ ! -f "/etc/systemd/system/$SERVICE" ]] || cp -p "/etc/systemd/system/$SERVICE" "$TMP/unit.before"
+[[ ! -f /usr/local/bin/awg-gus-bot ]] || cp -p /usr/local/bin/awg-gus-bot "$TMP/command.before"
+old=$(readlink "$BASE/current" || true)
+if [[ -n "$old" && "$old" != "$BASE/releases/"* ]]; then die 'current указывает вне каталога версий'; fi
+
+if [[ ! -s "$CONF" ]] || ((RECONFIGURE)); then
+  [[ -t 0 ]] || die 'Для первого запуска нужен терминал: скачайте скрипт в файл, затем sudo bash install.sh'
+  # Stop only our bot to release its polling connection while pairing.
+  if ((was_active)); then systemctl stop "$SERVICE"; service_stopped=1; fi
+  configuring=1
+  if ! python3 "$release/run.py" setup --config "$CONF" --awg2 "$AWG2" --state-dir "$STATE"; then
+    die 'Настройка не завершена'
+  fi
+fi
+chmod 600 "$CONF"
+python3 "$release/run.py" check --config "$CONF"
+
+activated=1
+cat > "/etc/systemd/system/$SERVICE" <<EOF
+[Unit]
+Description=AWG Toolza bot for GusVoice
+After=network-online.target
+Wants=network-online.target
+StartLimitIntervalSec=300
+StartLimitBurst=5
+
+[Service]
+Type=simple
+User=root
+WorkingDirectory=$BASE/current
+ExecStart=$PYTHON $BASE/current/run.py run --config $CONF
+Environment=PYTHONUNBUFFERED=1
+UMask=0077
+Restart=on-failure
+RestartSec=10
+TimeoutStopSec=20
+KillMode=control-group
+
+[Install]
+WantedBy=multi-user.target
+EOF
+ln -sfn "$release" "$BASE/.current-next"
+mv -Tf "$BASE/.current-next" "$BASE/current"
+install -m 755 "$release/awg-gus-bot" /usr/local/bin/awg-gus-bot
+systemctl daemon-reload
+systemctl enable "$SERVICE" >/dev/null
+systemctl restart "$SERVICE"
+sleep 3
+systemctl is-active --quiet "$SERVICE" || die 'Служба не запустилась. journalctl -u awg-gus-bot -n 30'
+activated=0
+printf '\nГотово. В личной беседе с ботом Гуся отправьте /menu.\n'
+printf 'Служба: awg-gus-bot. Обновление: sudo awg-gus-bot update\n'
+printf 'Telegram-бот и awg2 не заменялись. Оба бота управляют общими VPN-клиентами.\n'
diff --git a/licenses/awg-toolza-MIT.txt b/licenses/awg-toolza-MIT.txt
new file mode 100644
index 0000000..12867cf
--- /dev/null
+++ b/licenses/awg-toolza-MIT.txt
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 KavinZZ
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/licenses/gusvoice-bot-MIT.txt b/licenses/gusvoice-bot-MIT.txt
new file mode 100644
index 0000000..ac19eb0
--- /dev/null
+++ b/licenses/gusvoice-bot-MIT.txt
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 The GusVoice authors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/run.py b/run.py
new file mode 100755
index 0000000..e27ff2b
--- /dev/null
+++ b/run.py
@@ -0,0 +1,9 @@
+#!/usr/bin/env python3
+from pathlib import Path
+import sys
+
+sys.path.insert(0, str(Path(__file__).resolve().parent / "vendor"))
+from awg_gus.main import main
+
+if __name__ == "__main__":
+    main()
diff --git a/tests/test_bot.py b/tests/test_bot.py
new file mode 100644
index 0000000..272b9dc
--- /dev/null
+++ b/tests/test_bot.py
@@ -0,0 +1,290 @@
+import asyncio
+from pathlib import Path
+import sys
+import tempfile
+import unittest
+from unittest.mock import AsyncMock, patch
+
+ROOT = Path(__file__).resolve().parents[1]
+sys.path[:0] = [str(ROOT), str(ROOT / "vendor")]
+from awg_gus.bot import Bot, Event
+from awg_gus.core import Awg, AwgError, State, validate_command
+from awg_gus.main import pair, validate_url
+
+OWNER = "11111111-1111-4111-8111-111111111111"
+OTHER = "22222222-2222-4222-8222-222222222222"
+CHAT = "33333333-3333-4333-8333-333333333333"
+MSG = "44444444-4444-4444-8444-444444444444"
+
+
+class FakeAwg:
+    def __init__(self):
+        self.calls = []
+        self.rows = [{"name": "alice", "ip": "10.8.1.2", "online": True,
+                      "handshake": 1, "ago": 10, "rx": 1024, "tx": 512}]
+
+    async def call(self, *args, **kw):
+        validate_command(args)
+        self.calls.append(args)
+        data = {}
+        if args[:2] == ("clients", "list"):
+            data = self.rows
+        elif args[:2] == ("client", "conf"):
+            data = {"text": "[Interface]\nPrivateKey = test-key\n", "file": "/tmp/alice.conf"}
+        elif args[:2] == ("client", "add"):
+            self.rows.append({"name": args[2], "ip": "10.8.1.3"})
+        elif args[:2] == ("client", "del"):
+            self.rows[:] = [r for r in self.rows if r["name"] != args[2]]
+        elif args == ("status",):
+            data = {"version": "test", "host": "test-host", "server": {"up": True, "clients": len(self.rows)}}
+        elif args == ("server", "info"):
+            data = {"up": True}
+        return {"ok": True, "data": data, "log": "done"}
+
+
+class FakeDelivery:
+    def __init__(self):
+        self.sent = []
+        self.acks = []
+
+    async def show(self, chat, text, buttons=None, message=None):
+        self.sent.append(dict(chat=chat, text=text, buttons=buttons, message=message))
+        return {"message_id": MSG}
+
+    async def ack(self, cid, text=None):
+        self.acks.append((cid, text))
+
+    async def call(self, method, **params):
+        self.sent.append({"method": method, **params})
+        return {"message_id": MSG}
+
+
+def message(n, text, uid=OWNER, kind="dm"):
+    return {"update_id": n, "message": {"message_id": MSG, "text": text,
+            "from": {"id": uid}, "chat": {"id": CHAT, "type": kind}}}
+
+
+def callback(n, data, uid=OWNER, kind="dm"):
+    m = message(n, "", uid, kind)["message"]
+    return {"update_id": n, "callback_query": {"id": f"cb-{n}", "from": {"id": uid}, "data": data, "message": m}}
+
+
+class BotTests(unittest.IsolatedAsyncioTestCase):
+    def setUp(self):
+        self.tmp = tempfile.TemporaryDirectory()
+        self.path = Path(self.tmp.name) / "state.sqlite3"
+        self.state = State(self.path, "test")
+        self.api, self.io = FakeAwg(), FakeDelivery()
+        self.bot = Bot({"owners": [OWNER]}, self.api, self.io, self.state)
+
+    async def asyncTearDown(self):
+        for t in self.bot.tasks.values():
+            t.cancel()
+        await asyncio.gather(*self.bot.tasks.values(), return_exceptions=True)
+        self.state.db.close()
+        self.tmp.cleanup()
+
+    async def feed(self, u):
+        await self.bot.process(u)
+        await asyncio.gather(*self.bot.tasks.values())
+
+    async def test_no_access_for_other_users_or_channels(self):
+        await self.feed(message(1, "/menu", OTHER))
+        await self.feed(message(2, "/menu", OWNER, "channel"))
+        await self.feed(callback(3, "delete:alice", OTHER))
+        await self.feed(callback(4, "conf:alice", OWNER, "channel"))
+        self.assertEqual(self.api.calls, [])
+        self.assertEqual(self.io.sent, [])
+        self.assertEqual(len(self.io.acks), 2)
+
+    async def test_owner_menu_and_callback_ack(self):
+        await self.feed(message(1, "/start"))
+        await self.feed(callback(2, "list:0"))
+        self.assertIn(("status",), self.api.calls)
+        self.assertIn(("clients", "list"), self.api.calls)
+        self.assertEqual(self.io.acks[0], ("cb-2", None))
+        self.assertIn("alice", str(self.io.sent))
+
+    async def test_delete_requires_confirmation_and_is_single_use(self):
+        await self.feed(callback(1, "delete:alice"))
+        self.assertNotIn(("client", "del", "alice"), self.api.calls)
+        token = next(iter(self.bot.confirmations))
+        await self.feed(callback(2, "yes:" + token, OTHER))
+        self.assertIn(token, self.bot.confirmations)
+        await self.feed(callback(3, "yes:" + token))
+        await self.feed(callback(4, "yes:" + token))
+        self.assertEqual(self.api.calls.count(("client", "del", "alice")), 1)
+
+    async def test_cancel_invalidates_confirmation(self):
+        await self.feed(callback(1, "delete:alice"))
+        token = next(iter(self.bot.confirmations))
+        await self.feed(message(2, "/cancel"))
+        await self.feed(callback(3, "yes:" + token))
+        self.assertNotIn(("client", "del", "alice"), self.api.calls)
+
+    async def test_expired_confirmation_does_not_execute(self):
+        await self.feed(callback(1, "delete:alice"))
+        token = next(iter(self.bot.confirmations))
+        v = self.bot.confirmations[token]
+        self.bot.confirmations[token] = (*v[:2], 0, *v[3:])
+        await self.feed(callback(2, "yes:" + token))
+        self.assertNotIn(("client", "del", "alice"), self.api.calls)
+
+    async def test_create_flow_delivers_config_without_leaking_in_text(self):
+        with patch("awg_gus.bot.shutil.which", return_value=None):
+            await self.feed(message(1, "/new"))
+            await self.feed(message(2, "bob"))
+            await self.feed(callback(3, "newexp:+30d"))
+            token = next(iter(self.bot.confirmations))
+            await self.feed(callback(4, "yes:" + token))
+        self.assertIn(("client", "add", "bob", "mimicry=server", "expire=+30d"), self.api.calls)
+        sent = [m for m in self.io.sent if m.get("files")]
+        self.assertEqual(len(sent), 1)
+        self.assertEqual(sent[0]["files"][0].read()[1], "bob.conf")
+        self.assertNotIn("test-key", " ".join(s.get("text", "") for s in self.io.sent))
+
+    async def test_invalid_name_never_reaches_awg(self):
+        await self.feed(message(1, "/new"))
+        await self.feed(message(2, "alice; reboot"))
+        await self.feed(callback(3, "conf:../../passwd"))
+        self.assertFalse(any(a[:2] in {("client", "add"), ("client", "conf")} for a in self.api.calls))
+
+    async def test_limit_speed_and_expiry_use_validated_commands(self):
+        n = 0
+        for action, value, expected in [
+            ("limit", "50G total", ("client", "limit", "alice", "50G", "total")),
+            ("speed", "20", ("client", "speed", "alice", "20"))]:
+            n += 1
+            await self.feed(callback(n, action + ":alice"))
+            n += 1
+            await self.feed(message(n, value))
+            n += 1
+            await self.feed(callback(n, "yes:" + next(iter(self.bot.confirmations))))
+            self.assertIn(expected, self.api.calls)
+        await self.feed(callback(n+1, "exp:alice:+7d"))
+        await self.feed(callback(n+2, "yes:" + next(iter(self.bot.confirmations))))
+        self.assertIn(("client", "expire", "alice", "+7d"), self.api.calls)
+
+    async def test_duplicate_update_stays_deduplicated_after_restart(self):
+        await self.feed(callback(1, "list:0"))
+        count = len(self.api.calls)
+        self.state.db.close()
+        self.state = State(self.path, "test")
+        self.bot = Bot({"owners": [OWNER]}, self.api, self.io, self.state)
+        await self.feed(callback(1, "list:0"))
+        self.assertEqual(len(self.api.calls), count)
+
+    async def test_busy_callback_is_acknowledged_without_second_operation(self):
+        gate = asyncio.Event()
+        task = asyncio.create_task(gate.wait())
+        self.bot.tasks[(OWNER, CHAT)] = task
+        await self.bot.process(callback(1, "delete:alice"))
+        self.assertIn("выполняется", self.io.acks[-1][1])
+        self.assertEqual(self.api.calls, [])
+        gate.set()
+        await task
+
+    async def test_interrupted_operation_is_preserved_on_cancellation(self):
+        gate = asyncio.Event()
+        async def blocked(*args, **kwargs):
+            await gate.wait()
+        self.bot.home = blocked
+        await self.bot.process(message(1, "/start"))
+        await asyncio.sleep(0)
+        task = self.bot.tasks[(OWNER, CHAT)]
+        task.cancel()
+        await asyncio.gather(task, return_exceptions=True)
+        self.assertEqual(self.state.db.execute("SELECT COUNT(*) FROM pending").fetchone()[0], 1)
+
+    async def test_monitor_silent_until_state_changes_and_uses_chat_id(self):
+        self.state.claim(1, OWNER, CHAT)
+        self.state.finish(1)
+        self.state.watch(OWNER, "alice")
+        await self.bot.monitor_tick()
+        self.assertEqual(self.io.sent, [])
+        self.api.rows[0]["ago"] = 500
+        await self.bot.monitor_tick()
+        await self.bot.monitor_tick()
+        self.assertEqual(len(self.io.sent), 1)
+        self.assertEqual(self.io.sent[0]["chat"], CHAT)
+        self.assertIn("офлайн", self.io.sent[0]["text"])
+
+    async def test_config_and_qr_sent_in_same_message(self):
+        proc = AsyncMock()
+        proc.returncode = 0
+        proc.communicate.return_value = (b"\x89PNG\r\n\x1a\nmock", None)
+        with patch("awg_gus.bot.shutil.which", return_value="qrencode"), patch(
+                "awg_gus.bot.asyncio.create_subprocess_exec", return_value=proc) as spawn:
+            await self.bot.send_config(Event(OWNER, CHAT, 1), "alice")
+        self.assertEqual(len(self.io.sent[-1]["files"]), 2)
+        self.assertNotIn("test-key", str(spawn.call_args))
+        self.assertIn(b"test-key", proc.communicate.call_args.args[0])
+
+    async def test_cancelled_qr_is_reaped_without_sending_files(self):
+        from unittest.mock import Mock
+        proc = AsyncMock()
+        proc.kill = Mock()
+        proc.communicate.side_effect = asyncio.CancelledError
+        with patch("awg_gus.bot.shutil.which", return_value="qrencode"), patch(
+                "awg_gus.bot.asyncio.create_subprocess_exec", return_value=proc):
+            with self.assertRaises(asyncio.CancelledError):
+                await self.bot.send_config(Event(OWNER, CHAT, 1), "alice")
+        proc.kill.assert_called_once()
+        proc.wait.assert_awaited_once()
+        self.assertEqual(self.io.sent, [])
+
+
+class CoreTests(unittest.TestCase):
+    def test_command_allowlist_rejects_root_escape_routes(self):
+        for command in [("server", "reset"), ("bot", "update"), ("job", "start", "server", "reboot"),
+                        ("client", "add", "ok", "mimicry=server", "expire=$(id)"),
+                        ("client", "conf", "../root"), ("client", "speed", "alice", "1;id"),
+                        ("backup", "restore", "/tmp/x")]:
+            with self.subTest(command=command), self.assertRaises(ValueError):
+                validate_command(command)
+
+    def test_url_rejects_insecure_or_embedded_credentials(self):
+        for u in ["http://example.com", "https://user:pass@example.com", "https://example.com?x=1", "https://example.com/api/bot/v1"]:
+            with self.assertRaises(ValueError):
+                validate_url(u)
+        self.assertEqual(validate_url("https://example.com/api/"), "https://example.com")
+
+    def test_pairing_does_not_trust_first_update_or_group_code(self):
+        from unittest.mock import Mock
+        client = Mock()
+        client.get_updates.side_effect = [[message(1, "Привет, бот!", OTHER),
+                                          message(2, "/start SECRET", OTHER, "channel"),
+                                          message(3, "/start wrong", OTHER),
+                                          message(4, "/start SECRET")], []]
+        self.assertEqual(pair(client, "SECRET"), (OWNER, CHAT, 5))
+
+    def test_state_cannot_be_shared_between_different_bots(self):
+        with tempfile.TemporaryDirectory() as d:
+            s = State(Path(d) / "s.db", "one")
+            s.db.close()
+            with self.assertRaises(ValueError):
+                State(Path(d) / "s.db", "two")
+
+
+class ProcessTests(unittest.IsolatedAsyncioTestCase):
+    async def test_json_api_without_shell_or_secret_arguments(self):
+        proc = AsyncMock()
+        proc.returncode = 0
+        proc.communicate.return_value = (b'progress\n{"ok":true,"data":{"version":"test"}}\n', b'')
+        with patch("awg_gus.core.asyncio.create_subprocess_exec", return_value=proc) as spawn:
+            result = await Awg("/usr/local/bin/awg2").call("version")
+        self.assertEqual(result["data"]["version"], "test")
+        self.assertEqual(spawn.call_args.args, ("/usr/local/bin/awg2", "api", "version"))
+
+    async def test_malformed_or_failed_api_not_reported_as_success(self):
+        for output in [b"not json", b'{"ok":false,"error":"failed"}']:
+            proc = AsyncMock()
+            proc.returncode = 0
+            proc.communicate.return_value = (output, b'')
+            with patch("awg_gus.core.asyncio.create_subprocess_exec", return_value=proc):
+                with self.assertRaises(AwgError):
+                    await Awg("awg2").call("version")
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/tests/test_transport.py b/tests/test_transport.py
new file mode 100644
index 0000000..c17d025
--- /dev/null
+++ b/tests/test_transport.py
@@ -0,0 +1,115 @@
+"""Exercise the actual vendored SDK and native bot against a local HTTP API double."""
+import asyncio
+from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
+import json
+from pathlib import Path
+import sys
+import tempfile
+import threading
+import unittest
+from unittest.mock import patch
+
+ROOT = Path(__file__).resolve().parents[1]
+sys.path[:0] = [str(ROOT), str(ROOT / "vendor")]
+from gusvoice_bot import AsyncClient, Client, GusVoiceApiError
+from awg_gus.bot import Bot
+from awg_gus.core import Delivery, State
+from test_bot import CHAT, MSG, OWNER, FakeAwg, callback, message
+
+
+class Handler(BaseHTTPRequestHandler):
+    def log_message(self, *args):
+        pass
+
+    def do_POST(self):
+        body = self.rfile.read(int(self.headers.get("Content-Length", "0")))
+        method = self.path.rsplit("/", 1)[-1]
+        self.server.received.append((method, self.headers, body))
+        if self.headers.get("Authorization") != "Bot gvb_test":
+            code, result = 401, {"ok": False, "error_code": 401, "description": "Unauthorized"}
+        elif self.server.fail_next:
+            self.server.fail_next = False
+            code, result = 429, {"ok": False, "error_code": 429, "description": "slow down", "retry_after": 0}
+        else:
+            code = 200
+            data = json.loads(body) if "application/json" in self.headers.get("Content-Type", "") else {}
+            if method in {"sendMessage", "editMessageText"}:
+                if data and (not isinstance(data.get("chat_id"), str) or data.get("parse_mode") not in {None, "HTML"}):
+                    raise AssertionError("Wrong native API contract")
+                payload = {"message_id": MSG, "chat": {"id": CHAT, "type": "dm"}, "text": data.get("text", "")}
+            elif method == "getUpdates":
+                payload = []
+            elif method == "getWebhookInfo":
+                payload = {"url": ""}
+            else:
+                payload = True
+            result = {"ok": True, "result": payload}
+        raw = json.dumps(result).encode()
+        self.send_response(code)
+        self.send_header("Content-Type", "application/json")
+        self.send_header("Content-Length", str(len(raw)))
+        self.end_headers()
+        self.wfile.write(raw)
+
+
+class TransportTests(unittest.IsolatedAsyncioTestCase):
+    def setUp(self):
+        self.server = ThreadingHTTPServer(("127.0.0.1", 0), Handler)
+        self.server.received = []
+        self.server.fail_next = False
+        self.thread = threading.Thread(target=self.server.serve_forever, daemon=True)
+        self.thread.start()
+        self.url = f"http://127.0.0.1:{self.server.server_port}"
+
+    def tearDown(self):
+        self.server.shutdown()
+        self.server.server_close()
+        self.thread.join()
+
+    async def test_real_sdk_native_menu_and_config_upload(self):
+        with tempfile.TemporaryDirectory() as tmp:
+            state = State(Path(tmp) / "state.db", "test")
+            client = AsyncClient("gvb_test", self.url, discover=False)
+            bot = Bot({"owners": [OWNER]}, FakeAwg(), Delivery(client), state)
+            try:
+                await bot.process(message(1, "/menu"))
+                await asyncio.gather(*bot.tasks.values())
+                with patch("awg_gus.bot.shutil.which", return_value=None):
+                    await bot.process(callback(2, "conf:alice"))
+                    await asyncio.gather(*bot.tasks.values())
+                methods = [r[0] for r in self.server.received]
+                self.assertIn("answerCallbackQuery", methods)
+                messages = [r for r in self.server.received if r[0] == "sendMessage"]
+                self.assertEqual(json.loads(messages[0][2])["chat_id"], CHAT)
+                self.assertIn(b'name="files[0]"', messages[-1][2])
+                self.assertIn(b'filename="alice.conf"', messages[-1][2])
+                self.assertIn("multipart/form-data", messages[-1][1]["Content-Type"])
+            finally:
+                state.db.close()
+
+    async def test_sdk_429_retry_preserves_uuid_and_payload(self):
+        self.server.fail_next = True
+        client = AsyncClient("gvb_test", self.url, discover=False)
+        await client.send_message(CHAT, "hello")
+        self.assertEqual(len(self.server.received), 2)
+        self.assertEqual(self.server.received[0][2], self.server.received[1][2])
+
+    async def test_sdk_unauthorized_not_retried(self):
+        client = AsyncClient("gvb_wrong", self.url, discover=False)
+        with self.assertRaises(GusVoiceApiError) as error:
+            await client.send_message(CHAT, "hello")
+        self.assertEqual(error.exception.code, 401)
+        self.assertEqual(len(self.server.received), 1)
+
+    async def test_delivery_edits_by_uuid_without_arithmetic(self):
+        delivery = Delivery(AsyncClient("gvb_test", self.url, discover=False))
+        await delivery.show(CHAT, "new screen", [[{"text": "Menu", "callback_data": "home"}]], MSG)
+        method, _, raw = self.server.received[0]
+        self.assertEqual(method, "editMessageText")
+        payload = json.loads(raw)
+        self.assertEqual(payload["message_id"], MSG)
+        self.assertTrue(payload["reply_markup"]["inline_keyboard"])
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/vendor/gusvoice_bot/__init__.py b/vendor/gusvoice_bot/__init__.py
new file mode 100644
index 0000000..c3cfaa6
--- /dev/null
+++ b/vendor/gusvoice_bot/__init__.py
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: MIT
+"""GusVoice Bot API for Python — a thin client on the standard library only.
+
+    from gusvoice_bot import Client
+    bot = Client(os.environ["BOT_TOKEN"], "https://voice.example.com")
+    bot.send_message(chat_id, "Hello")
+
+Long polling (`run_polling`), webhook deliveries with signature check (`verify_signature`, `webhook_handler`), inline
+buttons (`InlineKeyboard`), retry on 429. No WebSocket and no voice: for those use the TypeScript SDK `@gusvoice/bot`.
+"""
+from ._generated import API_VERSION, METHODS, SCHEMA_VERSION, UPDATE_TYPES
+from .client import AsyncClient, Client, InputFile, normalize_base
+from .errors import GusVoiceApiError, GusVoiceError
+from .keyboard import (
+    CALLBACK_DATA_MAX_BYTES,
+    KEYBOARD_BUTTON_TEXT_MAX,
+    KEYBOARD_BUTTONS_MAX,
+    KEYBOARD_ROW_BUTTONS_MAX,
+    InlineKeyboard,
+)
+from .polling import run_polling
+from .webhook import DEFAULT_TOLERANCE_S, SIGNATURE_HEADER, parse_signature_header, sign, verify_signature, webhook_handler
+
+__version__ = "0.1.0"
+
+__all__ = [
+    "API_VERSION",
+    "METHODS",
+    "SCHEMA_VERSION",
+    "UPDATE_TYPES",
+    "AsyncClient",
+    "Client",
+    "InputFile",
+    "normalize_base",
+    "GusVoiceApiError",
+    "GusVoiceError",
+    "CALLBACK_DATA_MAX_BYTES",
+    "KEYBOARD_BUTTON_TEXT_MAX",
+    "KEYBOARD_BUTTONS_MAX",
+    "KEYBOARD_ROW_BUTTONS_MAX",
+    "InlineKeyboard",
+    "run_polling",
+    "DEFAULT_TOLERANCE_S",
+    "SIGNATURE_HEADER",
+    "parse_signature_header",
+    "sign",
+    "verify_signature",
+    "webhook_handler",
+    "__version__",
+]
diff --git a/vendor/gusvoice_bot/_generated.py b/vendor/gusvoice_bot/_generated.py
new file mode 100644
index 0000000..7dcb585
--- /dev/null
+++ b/vendor/gusvoice_bot/_generated.py
@@ -0,0 +1,502 @@
+# Generated by `node scripts/gen-bot-api.mjs` from docs/bot-api/openapi.json — DO NOT EDIT.
+# CI (`gen-bot-api.mjs --check`) fails when this file is out of date.
+# SPDX-License-Identifier: MIT
+"""Types and method wrappers of the GusVoice Bot API, generated from the OpenAPI document."""
+from __future__ import annotations
+
+from typing import Any, Dict, List, Literal, Optional, Sequence, TypedDict, Union
+
+SCHEMA_VERSION = "1.4.0"
+"""Version of the OpenAPI document this module was generated from."""
+API_VERSION = 4
+"""Bot API level (`getMe.api_version`) the wrappers below know about."""
+
+METHODS: Dict[str, int] = {
+    "getMe": 1,
+    "getUpdates": 1,
+    "setWebhook": 1,
+    "deleteWebhook": 1,
+    "getWebhookInfo": 1,
+    "sendMessage": 1,
+    "editMessageText": 1,
+    "deleteMessage": 1,
+    "sendChatAction": 1,
+    "getChat": 1,
+    "editMessageReplyMarkup": 2,
+    "answerCallbackQuery": 2,
+    "setMyCommands": 2,
+    "getMyCommands": 2,
+    "deleteMyCommands": 2,
+    "setMessageReaction": 3,
+    "pinChatMessage": 3,
+    "unpinChatMessage": 3,
+    "getChatHistory": 3,
+    "getChatMember": 3,
+    "getChatMemberCount": 3,
+    "getChatMembers": 3,
+    "getMyServers": 3,
+    "getServer": 3,
+    "addChatMemberRole": 3,
+    "removeChatMemberRole": 3,
+    "banChatMember": 3,
+    "unbanChatMember": 3,
+    "kickChatMember": 3,
+    "leaveChat": 3,
+    "joinVoice": 4,
+    "leaveVoice": 4,
+    "getVoiceChatMembers": 4,
+}
+"""Every Bot API method → the API level it appeared in (`getMe.api_version`)."""
+
+UPDATE_TYPES = (
+    "message",
+    "edited_message",
+    "message_deleted",
+    "my_chat_member",
+    "callback_query",
+    "message_reaction",
+    "chat_member",
+    "voice_state",
+)
+"""Update kinds (one key besides `update_id` in every `Update`); unknown kinds may appear — ignore them."""
+
+
+# required: url, file_name, mime_type, file_size
+Attachment = TypedDict("Attachment", {
+    "url": "str",
+    "file_name": "str",
+    "mime_type": "str",
+    "file_size": "float",
+}, total=False)
+
+# required: command, description
+BotCommand = TypedDict("BotCommand", {
+    "command": "str",
+    "description": "str",
+}, total=False)
+
+# Supported `type`: default, all_private_chats, all_group_chats; other types are rejected with 400.
+# required: type
+BotCommandScope = TypedDict("BotCommandScope", {
+    "type": "str",
+}, total=False)
+
+# required: id, username, display_name, bot, description, about, public
+BotUser = TypedDict("BotUser", {
+    "id": "str",
+    "username": "str",
+    "display_name": "str",
+    "bot": "bool",
+    "instance_domain": "str",
+    "description": "str",
+    "about": "str",
+    "public": "bool",
+    "api_version": "float",
+    "features": "List[str]",
+    "dropped_update_count": "float",
+}, total=False)
+
+# required: id, from, message, data, date
+CallbackQuery = TypedDict("CallbackQuery", {
+    "id": "str",
+    "from": "User",
+    "message": "Message",
+    "data": "str",
+    "date": "float",
+}, total=False)
+
+# required: id, type
+Chat = TypedDict("Chat", {
+    "id": "str",
+    "type": "Literal[\"dm\", \"channel\", \"server\", \"voice\"]",
+    "server_id": "str",
+    "title": "str",
+}, total=False)
+
+# required: id, type
+ChatFullInfo = TypedDict("ChatFullInfo", {
+    "id": "str",
+    "type": "Literal[\"dm\", \"channel\", \"server\", \"voice\"]",
+    "server_id": "str",
+    "title": "str",
+    "user": "User",
+    "member_count": "float",
+}, total=False)
+
+# required: user, status, role_ids
+ChatMember = TypedDict("ChatMember", {
+    "user": "User",
+    "status": "Literal[\"creator\", \"member\", \"left\", \"kicked\"]",
+    "nickname": "str",
+    "role_ids": "List[str]",
+    "joined_date": "float",
+}, total=False)
+
+# required: chat, from, date, old_status, new_status
+ChatMemberUpdated = TypedDict("ChatMemberUpdated", {
+    "chat": "Chat",
+    "from": "User",
+    "date": "float",
+    "old_status": "Literal[\"creator\", \"member\", \"left\", \"kicked\"]",
+    "new_status": "Literal[\"creator\", \"member\", \"left\", \"kicked\"]",
+}, total=False)
+
+# required: members
+ChatMembersPage = TypedDict("ChatMembersPage", {
+    "members": "List[ChatMember]",
+    "next_offset": "str",
+}, total=False)
+
+# required: ok, error_code, description
+Error = TypedDict("Error", {
+    "ok": "bool",
+    "error_code": "float",
+    "description": "str",
+    "retry_after": "float",
+}, total=False)
+
+# Exactly one of `callback_data` (1–64 BYTES of UTF-8, not characters) and `url` (http(s) only, no credentials in the address).
+# required: text
+InlineKeyboardButton = TypedDict("InlineKeyboardButton", {
+    "text": "str",
+    "callback_data": "str",
+    "url": "str",
+}, total=False)
+
+# At least one row, 1–8 buttons in a row, at most 100 buttons in total.
+# required: inline_keyboard
+InlineKeyboardMarkup = TypedDict("InlineKeyboardMarkup", {
+    "inline_keyboard": "List[List[InlineKeyboardButton]]",
+}, total=False)
+
+# required: —
+InputEmbed = TypedDict("InputEmbed", {
+    "title": "Optional[str]",
+    "description": "Optional[str]",
+    "url": "Optional[str]",
+    "color": "Optional[int]",
+    "timestamp": "Optional[str]",
+    "fields": "Optional[List[Dict[str, Any]]]",
+    "author": "Optional[Dict[str, Any]]",
+    "footer": "Optional[Dict[str, Any]]",
+    "image": "Optional[Dict[str, Any]]",
+    "thumbnail": "Optional[Dict[str, Any]]",
+}, total=False)
+
+# required: message_id, chat, from, date, text
+Message = TypedDict("Message", {
+    "message_id": "str",
+    "chat": "Chat",
+    "from": "User",
+    "date": "float",
+    "edit_date": "float",
+    "text": "str",
+    "reply_to_message_id": "str",
+    "attachments": "List[Attachment]",
+    "embeds": "List[MessageEmbed]",
+    "reply_markup": "InlineKeyboardMarkup",
+}, total=False)
+
+# required: message_id, chat, date
+MessageDeleted = TypedDict("MessageDeleted", {
+    "message_id": "str",
+    "chat": "Chat",
+    "date": "float",
+}, total=False)
+
+# required: —
+MessageEmbed = TypedDict("MessageEmbed", {
+    "title": "str",
+    "url": "str",
+    "description": "str",
+    "color": "float",
+    "timestamp": "str",
+    "author": "Dict[str, Any]",
+    "footer": "Dict[str, Any]",
+    "fields": "List[Dict[str, Any]]",
+    "image": "Dict[str, Any]",
+    "thumbnail": "Dict[str, Any]",
+    "imageLink": "str",
+    "thumbnailLink": "str",
+}, total=False)
+
+# required: chat, message_id, user, date, old_reaction, new_reaction
+MessageReactionUpdated = TypedDict("MessageReactionUpdated", {
+    "chat": "Chat",
+    "message_id": "str",
+    "user": "User",
+    "date": "float",
+    "old_reaction": "List[ReactionType]",
+    "new_reaction": "List[ReactionType]",
+}, total=False)
+
+# required: type, emoji
+ReactionType = TypedDict("ReactionType", {
+    "type": "Literal[\"emoji\"]",
+    "emoji": "str",
+}, total=False)
+
+# required: id, title
+ServerBrief = TypedDict("ServerBrief", {
+    "id": "str",
+    "title": "str",
+}, total=False)
+
+# required: id, title, channels, roles
+ServerInfo = TypedDict("ServerInfo", {
+    "id": "str",
+    "title": "str",
+    "channels": "List[Dict[str, Any]]",
+    "roles": "List[Dict[str, Any]]",
+}, total=False)
+
+# required: chat, from, user, date, old_status, new_status
+ServerMemberUpdated = TypedDict("ServerMemberUpdated", {
+    "chat": "Chat",
+    "from": "User",
+    "user": "User",
+    "date": "float",
+    "old_status": "Literal[\"creator\", \"member\", \"left\", \"kicked\"]",
+    "new_status": "Literal[\"creator\", \"member\", \"left\", \"kicked\"]",
+}, total=False)
+
+# required: update_id
+Update = TypedDict("Update", {
+    "update_id": "float",
+    "message": "Message",
+    "edited_message": "Message",
+    "message_deleted": "MessageDeleted",
+    "my_chat_member": "ChatMemberUpdated",
+    "callback_query": "CallbackQuery",
+    "message_reaction": "MessageReactionUpdated",
+    "chat_member": "ServerMemberUpdated",
+    "voice_state": "VoiceStateUpdated",
+}, total=False)
+
+# required: id, username, display_name, bot
+User = TypedDict("User", {
+    "id": "str",
+    "username": "str",
+    "display_name": "str",
+    "bot": "bool",
+    "instance_domain": "str",
+}, total=False)
+
+# required: user, muted, deafened, server_muted, is_bot
+VoiceChatMember = TypedDict("VoiceChatMember", {
+    "user": "User",
+    "muted": "bool",
+    "deafened": "bool",
+    "server_muted": "bool",
+    "is_bot": "bool",
+}, total=False)
+
+# required: url, token, room, chat, server_muted, expires_in, audio
+VoiceJoinResult = TypedDict("VoiceJoinResult", {
+    "url": "str",
+    "token": "str",
+    "room": "str",
+    "chat": "Chat",
+    "server_muted": "bool",
+    "expires_in": "float",
+    "audio": "Dict[str, Any]",
+}, total=False)
+
+# required: chat, user, action, date
+VoiceStateUpdated = TypedDict("VoiceStateUpdated", {
+    "chat": "Chat",
+    "user": "User",
+    "action": "Literal[\"joined\", \"left\"]",
+    "date": "float",
+    "move_to": "Chat",
+}, total=False)
+
+# required: url, pending_update_count, failures
+WebhookInfo = TypedDict("WebhookInfo", {
+    "url": "str",
+    "pending_update_count": "float",
+    "failures": "float",
+    "last_error_date": "float",
+    "last_error_message": "str",
+    "disabled_date": "float",
+    "batch": "bool",
+    "dropped_update_count": "float",
+}, total=False)
+
+
+def _params(params: Dict[str, Any], extra: Dict[str, Any]) -> Dict[str, Any]:
+    out = {k: v for k, v in params.items() if v is not None}
+    out.update(extra)
+    return out
+
+
+class GeneratedMethods:
+    """One wrapper per Bot API method; `None` arguments are not sent. `**extra` passes parameters newer than this SDK."""
+
+    def call(self, method: str, params: Optional[Dict[str, Any]] = None, *, files: Optional[Sequence[Any]] = None) -> Any:
+        raise NotImplementedError
+
+    def get_me(self, **extra: Any) -> BotUser:
+        """`getMe` (API 1+)."""
+        params: Dict[str, Any] = {}
+        return self.call("getMe", _params(params, extra))
+
+    def get_updates(self, *, offset: Optional[int] = None, limit: Optional[int] = None, timeout: Optional[int] = None, allowed_updates: Optional[List[str]] = None, **extra: Any) -> List[Update]:
+        """`getUpdates` (API 1+). Long polling: the request is held up to `timeout` seconds (at most 50)."""
+        params: Dict[str, Any] = {"offset": offset, "limit": limit, "timeout": timeout, "allowed_updates": allowed_updates}
+        return self.call("getUpdates", _params(params, extra))
+
+    def set_webhook(self, url: str, secret_token: str, *, drop_pending_updates: Optional[bool] = None, batch: Optional[bool] = None, **extra: Any) -> bool:
+        """`setWebhook` (API 1+)."""
+        params: Dict[str, Any] = {"url": url, "secret_token": secret_token, "drop_pending_updates": drop_pending_updates, "batch": batch}
+        return self.call("setWebhook", _params(params, extra))
+
+    def delete_webhook(self, *, drop_pending_updates: Optional[bool] = None, **extra: Any) -> bool:
+        """`deleteWebhook` (API 1+)."""
+        params: Dict[str, Any] = {"drop_pending_updates": drop_pending_updates}
+        return self.call("deleteWebhook", _params(params, extra))
+
+    def get_webhook_info(self, **extra: Any) -> WebhookInfo:
+        """`getWebhookInfo` (API 1+)."""
+        params: Dict[str, Any] = {}
+        return self.call("getWebhookInfo", _params(params, extra))
+
+    def send_message(self, chat_id: str, text: Optional[str] = None, *, reply_to_message_id: Optional[str] = None, embeds: Optional[List[InputEmbed]] = None, disable_notification: Optional[bool] = None, disable_link_preview: Optional[bool] = None, reply_markup: Optional[InlineKeyboardMarkup] = None, client_id: Optional[str] = None, parse_mode: Optional[str] = None, files: Optional[Sequence[Any]] = None, **extra: Any) -> Message:
+        """`sendMessage` (API 1+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "text": text, "reply_to_message_id": reply_to_message_id, "embeds": embeds, "disable_notification": disable_notification, "disable_link_preview": disable_link_preview, "reply_markup": reply_markup, "client_id": client_id, "parse_mode": parse_mode}
+        return self.call("sendMessage", _params(params, extra), files=files)
+
+    def edit_message_text(self, chat_id: str, message_id: str, text: str, *, reply_markup: Optional[InlineKeyboardMarkup] = None, parse_mode: Optional[str] = None, **extra: Any) -> Message:
+        """`editMessageText` (API 1+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "message_id": message_id, "text": text, "reply_markup": reply_markup, "parse_mode": parse_mode}
+        return self.call("editMessageText", _params(params, extra))
+
+    def delete_message(self, chat_id: str, message_id: str, **extra: Any) -> bool:
+        """`deleteMessage` (API 1+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "message_id": message_id}
+        return self.call("deleteMessage", _params(params, extra))
+
+    def send_chat_action(self, chat_id: str, action: Literal["typing"], **extra: Any) -> bool:
+        """`sendChatAction` (API 1+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "action": action}
+        return self.call("sendChatAction", _params(params, extra))
+
+    def get_chat(self, chat_id: str, **extra: Any) -> ChatFullInfo:
+        """`getChat` (API 1+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id}
+        return self.call("getChat", _params(params, extra))
+
+    def edit_message_reply_markup(self, chat_id: str, message_id: str, *, reply_markup: Optional[InlineKeyboardMarkup] = None, **extra: Any) -> Message:
+        """`editMessageReplyMarkup` (API 2+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "message_id": message_id, "reply_markup": reply_markup}
+        return self.call("editMessageReplyMarkup", _params(params, extra))
+
+    def answer_callback_query(self, callback_query_id: str, text: Optional[str] = None, *, show_alert: Optional[bool] = None, **extra: Any) -> bool:
+        """`answerCallbackQuery` (API 2+)."""
+        params: Dict[str, Any] = {"callback_query_id": callback_query_id, "text": text, "show_alert": show_alert}
+        return self.call("answerCallbackQuery", _params(params, extra))
+
+    def set_my_commands(self, commands: List[BotCommand], *, scope: Optional[BotCommandScope] = None, **extra: Any) -> bool:
+        """`setMyCommands` (API 2+)."""
+        params: Dict[str, Any] = {"commands": commands, "scope": scope}
+        return self.call("setMyCommands", _params(params, extra))
+
+    def get_my_commands(self, *, scope: Optional[BotCommandScope] = None, **extra: Any) -> List[BotCommand]:
+        """`getMyCommands` (API 2+)."""
+        params: Dict[str, Any] = {"scope": scope}
+        return self.call("getMyCommands", _params(params, extra))
+
+    def delete_my_commands(self, *, scope: Optional[BotCommandScope] = None, **extra: Any) -> bool:
+        """`deleteMyCommands` (API 2+)."""
+        params: Dict[str, Any] = {"scope": scope}
+        return self.call("deleteMyCommands", _params(params, extra))
+
+    def set_message_reaction(self, chat_id: str, message_id: str, *, reaction: Optional[List[ReactionType]] = None, **extra: Any) -> bool:
+        """`setMessageReaction` (API 3+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "message_id": message_id, "reaction": reaction}
+        return self.call("setMessageReaction", _params(params, extra))
+
+    def pin_chat_message(self, chat_id: str, message_id: str, *, disable_notification: Optional[bool] = None, **extra: Any) -> bool:
+        """`pinChatMessage` (API 3+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "message_id": message_id, "disable_notification": disable_notification}
+        return self.call("pinChatMessage", _params(params, extra))
+
+    def unpin_chat_message(self, chat_id: str, message_id: str, **extra: Any) -> bool:
+        """`unpinChatMessage` (API 3+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "message_id": message_id}
+        return self.call("unpinChatMessage", _params(params, extra))
+
+    def get_chat_history(self, chat_id: str, *, before_message_id: Optional[str] = None, limit: Optional[int] = None, **extra: Any) -> List[Message]:
+        """`getChatHistory` (API 3+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "before_message_id": before_message_id, "limit": limit}
+        return self.call("getChatHistory", _params(params, extra))
+
+    def get_chat_member(self, chat_id: str, user_id: str, **extra: Any) -> ChatMember:
+        """`getChatMember` (API 3+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "user_id": user_id}
+        return self.call("getChatMember", _params(params, extra))
+
+    def get_chat_member_count(self, chat_id: str, **extra: Any) -> int:
+        """`getChatMemberCount` (API 3+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id}
+        return self.call("getChatMemberCount", _params(params, extra))
+
+    def get_chat_members(self, chat_id: str, *, offset: Optional[str] = None, limit: Optional[int] = None, **extra: Any) -> ChatMembersPage:
+        """`getChatMembers` (API 3+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "offset": offset, "limit": limit}
+        return self.call("getChatMembers", _params(params, extra))
+
+    def get_my_servers(self, **extra: Any) -> List[ServerBrief]:
+        """`getMyServers` (API 3+)."""
+        params: Dict[str, Any] = {}
+        return self.call("getMyServers", _params(params, extra))
+
+    def get_server(self, server_id: str, **extra: Any) -> ServerInfo:
+        """`getServer` (API 3+)."""
+        params: Dict[str, Any] = {"server_id": server_id}
+        return self.call("getServer", _params(params, extra))
+
+    def add_chat_member_role(self, chat_id: str, user_id: str, role_id: str, **extra: Any) -> bool:
+        """`addChatMemberRole` (API 3+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "user_id": user_id, "role_id": role_id}
+        return self.call("addChatMemberRole", _params(params, extra))
+
+    def remove_chat_member_role(self, chat_id: str, user_id: str, role_id: str, **extra: Any) -> bool:
+        """`removeChatMemberRole` (API 3+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "user_id": user_id, "role_id": role_id}
+        return self.call("removeChatMemberRole", _params(params, extra))
+
+    def ban_chat_member(self, chat_id: str, user_id: str, *, reason: Optional[str] = None, **extra: Any) -> bool:
+        """`banChatMember` (API 3+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "user_id": user_id, "reason": reason}
+        return self.call("banChatMember", _params(params, extra))
+
+    def unban_chat_member(self, chat_id: str, user_id: str, **extra: Any) -> bool:
+        """`unbanChatMember` (API 3+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "user_id": user_id}
+        return self.call("unbanChatMember", _params(params, extra))
+
+    def kick_chat_member(self, chat_id: str, user_id: str, **extra: Any) -> bool:
+        """`kickChatMember` (API 3+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "user_id": user_id}
+        return self.call("kickChatMember", _params(params, extra))
+
+    def leave_chat(self, chat_id: str, **extra: Any) -> bool:
+        """`leaveChat` (API 3+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id}
+        return self.call("leaveChat", _params(params, extra))
+
+    def join_voice(self, chat_id: str, *, bitrate: Optional[int] = None, **extra: Any) -> VoiceJoinResult:
+        """`joinVoice` (API 4+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id, "bitrate": bitrate}
+        return self.call("joinVoice", _params(params, extra))
+
+    def leave_voice(self, *, chat_id: Optional[str] = None, **extra: Any) -> bool:
+        """`leaveVoice` (API 4+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id}
+        return self.call("leaveVoice", _params(params, extra))
+
+    def get_voice_chat_members(self, chat_id: str, **extra: Any) -> List[VoiceChatMember]:
+        """`getVoiceChatMembers` (API 4+)."""
+        params: Dict[str, Any] = {"chat_id": chat_id}
+        return self.call("getVoiceChatMembers", _params(params, extra))
diff --git a/vendor/gusvoice_bot/client.py b/vendor/gusvoice_bot/client.py
new file mode 100644
index 0000000..41bbaa6
--- /dev/null
+++ b/vendor/gusvoice_bot/client.py
@@ -0,0 +1,273 @@
+# SPDX-License-Identifier: MIT
+"""HTTP client of the GusVoice Bot API on the standard library only (`urllib`).
+
+Every method is `POST <api>/api/bot/v1/<method>` with `Authorization: Bot <token>`; the answer is
+`{"ok": true, "result": ...}` or `{"ok": false, "error_code", "description", "retry_after"?}`. A 429 is retried after
+`retry_after` (up to `max_retries` times); other errors raise `GusVoiceApiError`, network errors raise as they are
+(`urllib.error.URLError`, `TimeoutError`). The same behaviour as the TypeScript SDK (`packages/bot-sdk/src/apiClient.ts`).
+"""
+from __future__ import annotations
+
+import asyncio
+import json
+import mimetypes
+import os
+import socket
+import threading
+import time
+import urllib.error
+import urllib.request
+import uuid
+from typing import Any, BinaryIO, Callable, Dict, List, Optional, Sequence, Tuple, Union
+from urllib.parse import urljoin
+
+from ._generated import GeneratedMethods
+from .errors import GusVoiceApiError
+
+__all__ = ["Client", "AsyncClient", "InputFile", "normalize_base"]
+
+DEFAULT_TIMEOUT_S = 30.0
+"""Time limit of one request, seconds (long polling adds its own `timeout` on top)."""
+DISCOVERY_TIMEOUT_S = 10.0
+
+
+def normalize_base(url: str) -> str:
+    """Without trailing `/` and without a trailing `/api`: the client adds the method path itself."""
+    u = str(url).strip().rstrip("/")
+    if u.endswith("/api"):
+        u = u[:-4]
+    if not (u.lower().startswith("http://") or u.lower().startswith("https://")):
+        raise ValueError(f'base_url must start with http:// or https:// (got "{url}")')
+    return u
+
+
+class InputFile:
+    """A file for `send_message(..., files=[...])`: a path, bytes or a binary file object."""
+
+    def __init__(self, source: Union[str, "os.PathLike[str]", bytes, bytearray, BinaryIO], filename: Optional[str] = None,
+                 content_type: Optional[str] = None) -> None:
+        self.source = source
+        self.filename = filename
+        self.content_type = content_type
+
+    def read(self) -> Tuple[bytes, str, str]:
+        """`(data, file name, content type)`."""
+        src = self.source
+        name = self.filename
+        if isinstance(src, (bytes, bytearray)):
+            data = bytes(src)
+            name = name or "file"
+        elif isinstance(src, (str, os.PathLike)):
+            path = os.fspath(src)
+            with open(path, "rb") as f:
+                data = f.read()
+            name = name or os.path.basename(path) or "file"
+        else:
+            data = src.read()
+            name = name or os.path.basename(str(getattr(src, "name", "") or "")) or "file"
+        ctype = self.content_type or mimetypes.guess_type(name)[0] or "application/octet-stream"
+        return data, name, ctype
+
+
+def _json_default(o: Any) -> Any:
+    to_dict = getattr(o, "to_dict", None)  # InlineKeyboard and similar builders
+    if callable(to_dict):
+        return to_dict()
+    raise TypeError(f"Object of type {type(o).__name__} is not JSON serializable")
+
+
+def _dumps(value: Any) -> str:
+    return json.dumps(value, default=_json_default, ensure_ascii=False, separators=(",", ":"))
+
+
+def _multipart(params: Dict[str, Any], files: Sequence[Any]) -> Tuple[bytes, str]:
+    """`multipart/form-data`: parameters as fields (objects and arrays as JSON strings), files as `files[0]`, `files[1]` ..."""
+    boundary = f"gusvoice-{uuid.uuid4().hex}"
+    out: List[bytes] = []
+
+    def quote(s: str) -> str:
+        return s.replace("\\", "\\\\").replace('"', '\\"').replace("\r", " ").replace("\n", " ")
+
+    for k, v in params.items():
+        if v is None:
+            continue
+        if isinstance(v, bool):
+            text = "true" if v else "false"
+        elif isinstance(v, (dict, list, tuple)) or callable(getattr(v, "to_dict", None)):
+            text = _dumps(v)
+        else:
+            text = str(v)
+        out.append(f'--{boundary}\r\nContent-Disposition: form-data; name="{quote(k)}"\r\n\r\n'.encode("utf-8"))
+        out.append(text.encode("utf-8") + b"\r\n")
+    for i, f in enumerate(files):
+        data, name, ctype = (f if isinstance(f, InputFile) else InputFile(f)).read()
+        out.append(
+            f'--{boundary}\r\nContent-Disposition: form-data; name="files[{i}]"; filename="{quote(name)}"\r\n'
+            f"Content-Type: {ctype}\r\n\r\n".encode("utf-8")
+        )
+        out.append(data + b"\r\n")
+    out.append(f"--{boundary}--\r\n".encode("ascii"))
+    return b"".join(out), f"multipart/form-data; boundary={boundary}"
+
+
+class _NoRedirect(urllib.request.HTTPRedirectHandler):
+    """A redirect would carry the bot token to another address: answer it as an error instead."""
+
+    def redirect_request(self, req, fp, code, msg, headers, newurl):  # type: ignore[no-untyped-def]
+        return None
+
+
+class Client(GeneratedMethods):
+    """Bot API client. `base_url` is the instance site (`https://voice.example.com`) or its API address.
+
+    The API address is found once through `<base_url>/config.json` (`apiUrl`), as the web client does; pass
+    `discover=False` to use `base_url` as is. All methods are generated from the OpenAPI document (`_generated.py`):
+    `send_message(chat_id, "text", reply_markup=...)`, `get_updates(offset=..., timeout=...)`, ...; any method by name —
+    `call("sendMessage", {...})`. Thread-safe: one client can be used from several threads.
+    """
+
+    def __init__(
+        self,
+        token: str,
+        base_url: str,
+        *,
+        discover: bool = True,
+        max_retries: int = 3,
+        max_retry_after: float = 60,
+        timeout: float = DEFAULT_TIMEOUT_S,
+        opener: Optional[urllib.request.OpenerDirector] = None,
+        sleep: Callable[[float], Any] = time.sleep,
+    ) -> None:
+        if not token or not isinstance(token, str):
+            raise ValueError("token is required (BotFather-style `gvb_...` from the GusVoice bot settings)")
+        self.token = token
+        self.base_url = normalize_base(base_url)
+        self.discover = discover
+        self.max_retries = max(0, int(max_retries))
+        self.max_retry_after = max_retry_after
+        self.timeout = timeout
+        self._opener = opener or urllib.request.build_opener(_NoRedirect)
+        self._sleep = sleep
+        self._api: Optional[str] = None
+        self._api_lock = threading.Lock()
+
+    # ── address ───────────────────────────────────────────────────────────────────────────────────────────────────
+    def api_url(self) -> str:
+        """API address (`https://api.example.com`) after reading `config.json`; a network failure is not remembered."""
+        with self._api_lock:
+            if self._api is None:
+                self._api = self._discover_api()
+            return self._api
+
+    def _discover_api(self) -> str:
+        if not self.discover:
+            return self.base_url
+        req = urllib.request.Request(f"{self.base_url}/config.json", headers={"Accept": "application/json"})
+        try:
+            with self._opener.open(req, timeout=DISCOVERY_TIMEOUT_S) as r:
+                raw = r.read()
+        except urllib.error.HTTPError:
+            return self.base_url  # no config.json here: base_url already is the API
+        except (TimeoutError, socket.timeout):
+            return self.base_url
+        except urllib.error.URLError as e:
+            if isinstance(e.reason, (TimeoutError, socket.timeout)):
+                return self.base_url
+            raise
+        try:
+            cfg = json.loads(raw.decode("utf-8"))
+        except ValueError:
+            return self.base_url
+        api = cfg.get("apiUrl") if isinstance(cfg, dict) else None
+        if not isinstance(api, str) or not api.strip():
+            return self.base_url
+        found = normalize_base(urljoin(f"{self.base_url}/", api.strip()))
+        # The site is https, but config.json points to plain http (spoofing or a misconfiguration): keep the token off it.
+        if self.base_url.lower().startswith("https:") and not found.lower().startswith("https:"):
+            raise ValueError(
+                f"config.json of {self.base_url} points apiUrl to non-HTTPS {found}; refusing to send the bot token over plain HTTP"
+            )
+        return found
+
+    def auth_header(self) -> str:
+        return f"Bot {self.token}"
+
+    # ── methods ───────────────────────────────────────────────────────────────────────────────────────────────────
+    def call(self, method: str, params: Optional[Dict[str, Any]] = None, *, files: Optional[Sequence[Any]] = None,
+             request_timeout: Optional[float] = None) -> Any:
+        """Any Bot API method by name. `params` go as JSON; with `files` — as `multipart/form-data`."""
+        params = {k: v for k, v in (params or {}).items() if v is not None}
+        url = f"{self.api_url()}/api/bot/v1/{method}"
+        limit = request_timeout
+        if limit is None:
+            limit = self.timeout
+            if method.lower() == "getupdates":  # long polling: the server holds the request up to `timeout` seconds
+                try:
+                    limit += float(params.get("timeout") or 0)
+                except (TypeError, ValueError):
+                    pass
+        attempt = 0
+        while True:
+            if files:
+                body, ctype = _multipart(params, files)
+            else:
+                body, ctype = _dumps(params).encode("utf-8"), "application/json"
+            req = urllib.request.Request(
+                url, data=body, method="POST",
+                headers={"Authorization": self.auth_header(), "Content-Type": ctype, "Accept": "application/json"},
+            )
+            retry_header: Optional[str] = None
+            try:
+                with self._opener.open(req, timeout=limit) as r:
+                    status = r.status
+                    raw = r.read()
+            except urllib.error.HTTPError as e:
+                status = e.code
+                retry_header = e.headers.get("Retry-After") if e.headers else None
+                raw = e.read() or b""
+            try:
+                res = json.loads(raw.decode("utf-8"))
+            except ValueError:
+                res = None
+            if isinstance(res, dict) and res.get("ok") is True:
+                return res.get("result")
+            err = res if isinstance(res, dict) and res.get("ok") is False else {}
+            code = err.get("error_code") if isinstance(err.get("error_code"), int) else status
+            description = err.get("description") if isinstance(err.get("description"), str) else f"HTTP {status}"
+            retry_after = err.get("retry_after")
+            if not isinstance(retry_after, int) or isinstance(retry_after, bool):
+                retry_after = int(retry_header) if retry_header and retry_header.strip().isdigit() else None
+            if code == 429 and retry_after is not None and attempt < self.max_retries and retry_after <= self.max_retry_after:
+                attempt += 1
+                self._sleep(retry_after)
+                continue
+            raise GusVoiceApiError(code, description, retry_after, method)
+
+    # ── receiving updates ─────────────────────────────────────────────────────────────────────────────────────────
+    def run_polling(self, handler: Callable[[Dict[str, Any]], Any], **options: Any) -> None:
+        """Long polling loop (`getUpdates`) — see `gusvoice_bot.polling.run_polling` for the options."""
+        from .polling import run_polling
+
+        run_polling(self, handler, **options)
+
+
+class AsyncClient:
+    """`asyncio` wrapper over `Client`: every method runs in a worker thread (`asyncio.to_thread`).
+
+    It is threads, not native async I/O — fine for a bot, no extra dependencies. `await bot.send_message(chat, "hi")`.
+    """
+
+    def __init__(self, token: str, base_url: str, **options: Any) -> None:
+        self.sync = Client(token, base_url, **options)
+
+    def __getattr__(self, name: str) -> Any:
+        attr = getattr(self.sync, name)
+        if not callable(attr):
+            return attr
+
+        async def run(*args: Any, **kwargs: Any) -> Any:
+            return await asyncio.to_thread(attr, *args, **kwargs)
+
+        run.__name__ = name
+        run.__doc__ = getattr(attr, "__doc__", None)
+        return run
diff --git a/vendor/gusvoice_bot/errors.py b/vendor/gusvoice_bot/errors.py
new file mode 100644
index 0000000..b620b07
--- /dev/null
+++ b/vendor/gusvoice_bot/errors.py
@@ -0,0 +1,24 @@
+# SPDX-License-Identifier: MIT
+"""Errors of the GusVoice Bot API client."""
+from __future__ import annotations
+
+from typing import Optional
+
+
+class GusVoiceError(Exception):
+    """Base class of every error raised by this package."""
+
+
+class GusVoiceApiError(GusVoiceError):
+    """The server answered `{"ok": false, ...}` (or a non-JSON error page).
+
+    `code` is `error_code` (or the HTTP status), `description` is the server text, `retry_after` (seconds) comes with 429.
+    """
+
+    def __init__(self, code: int, description: str, retry_after: Optional[int] = None, method: Optional[str] = None) -> None:
+        self.code = code
+        self.description = description
+        self.retry_after = retry_after
+        self.method = method
+        where = f"{method}: " if method else ""
+        super().__init__(f"{where}{code} {description}")
diff --git a/vendor/gusvoice_bot/keyboard.py b/vendor/gusvoice_bot/keyboard.py
new file mode 100644
index 0000000..cb2fd45
--- /dev/null
+++ b/vendor/gusvoice_bot/keyboard.py
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: MIT
+"""Buttons under a message: `InlineKeyboard().text("Status", "st").row().url("Site", "https://example.com")`.
+
+Pass the keyboard as `reply_markup` as is. The server limits are checked when a button is added (the same as the
+TypeScript SDK `packages/bot-sdk/src/keyboard.ts`): `callback_data` is 1-64 BYTES of UTF-8 (not characters), at most
+8 buttons in a row and 100 in total, button text 1-64 characters, `url` only http(s) without credentials.
+"""
+from __future__ import annotations
+
+from typing import Any, Dict, Iterable, List, Optional
+from urllib.parse import urlsplit
+
+CALLBACK_DATA_MAX_BYTES = 64
+KEYBOARD_ROW_BUTTONS_MAX = 8
+KEYBOARD_BUTTONS_MAX = 100
+KEYBOARD_BUTTON_TEXT_MAX = 64
+
+
+def _is_http_url(url: str) -> bool:
+    try:
+        u = urlsplit(url)
+        return u.scheme in ("http", "https") and bool(u.hostname) and u.username is None and u.password is None
+    except ValueError:
+        return False
+
+
+class InlineKeyboard:
+    """Builder of `InlineKeyboardMarkup`. Empty rows are dropped when the markup is sent."""
+
+    def __init__(self, rows: Optional[Iterable[Iterable[Dict[str, Any]]]] = None) -> None:
+        self.inline_keyboard: List[List[Dict[str, Any]]] = [[]]
+        if rows is not None:
+            self.inline_keyboard = []
+            for r in rows:
+                self.row()
+                for b in r:
+                    self._add(dict(b))
+
+    def text(self, label: str, data: str) -> "InlineKeyboard":
+        """A button that sends the bot a `callback_query` with `data` (the person who presses it sees it: no secrets)."""
+        if not isinstance(data, str) or not data or len(data.encode("utf-8")) > CALLBACK_DATA_MAX_BYTES:
+            raise ValueError(f"InlineKeyboard: callback_data {data!r} must be 1-{CALLBACK_DATA_MAX_BYTES} bytes of UTF-8")
+        return self._add({"text": label, "callback_data": data})
+
+    def url(self, label: str, url: str) -> "InlineKeyboard":
+        """A link button (http/https only, no login in the address; the client asks "Open the link?")."""
+        if not isinstance(url, str) or not _is_http_url(url):
+            raise ValueError(f"InlineKeyboard: url {url!r} must be http(s) without credentials")
+        return self._add({"text": label, "url": url})
+
+    def row(self) -> "InlineKeyboard":
+        """Next buttons go to a new row."""
+        if not self.inline_keyboard or self.inline_keyboard[-1]:
+            self.inline_keyboard.append([])
+        return self
+
+    def to_dict(self) -> Dict[str, Any]:
+        """The markup without empty rows (this is what goes to the server)."""
+        return {"inline_keyboard": [[dict(b) for b in r] for r in self.inline_keyboard if r]}
+
+    def _add(self, b: Dict[str, Any]) -> "InlineKeyboard":
+        label = b.get("text")
+        if not isinstance(label, str) or not label.strip() or len(label.strip()) > KEYBOARD_BUTTON_TEXT_MAX:
+            raise ValueError(f"InlineKeyboard: button text must be 1-{KEYBOARD_BUTTON_TEXT_MAX} characters")
+        if ("callback_data" in b) == ("url" in b):
+            raise ValueError("InlineKeyboard: a button needs exactly one of callback_data and url")
+        if "callback_data" in b:
+            d = b["callback_data"]
+            if not isinstance(d, str) or not d or len(d.encode("utf-8")) > CALLBACK_DATA_MAX_BYTES:
+                raise ValueError(f"InlineKeyboard: callback_data {d!r} must be 1-{CALLBACK_DATA_MAX_BYTES} bytes of UTF-8")
+        elif not isinstance(b["url"], str) or not _is_http_url(b["url"]):
+            raise ValueError(f"InlineKeyboard: url {b['url']!r} must be http(s) without credentials")
+        if sum(len(r) for r in self.inline_keyboard) >= KEYBOARD_BUTTONS_MAX:
+            raise ValueError(f"InlineKeyboard: at most {KEYBOARD_BUTTONS_MAX} buttons")
+        if not self.inline_keyboard:
+            self.inline_keyboard.append([])
+        last = self.inline_keyboard[-1]
+        if len(last) >= KEYBOARD_ROW_BUTTONS_MAX:
+            raise ValueError(f"InlineKeyboard: at most {KEYBOARD_ROW_BUTTONS_MAX} buttons in a row - call row()")
+        last.append(b)
+        return self
diff --git a/vendor/gusvoice_bot/polling.py b/vendor/gusvoice_bot/polling.py
new file mode 100644
index 0000000..da03e93
--- /dev/null
+++ b/vendor/gusvoice_bot/polling.py
@@ -0,0 +1,103 @@
+# SPDX-License-Identifier: MIT
+"""Long polling loop: `getUpdates` with `offset`, one update at a time, in order.
+
+The offset moves past an update only AFTER the handler has returned for it, so an update in flight when the process
+dies is delivered again. A handler exception goes to `on_error(update, exc)` (default: print the traceback) and the
+update counts as handled — otherwise one bad update would come back forever; make `on_error` re-raise to stop the loop
+without confirming that update instead. Fatal answers (401 — token revoked or bot disabled, 403 — bots are off on the
+instance, 404, 409 — a webhook is set or another copy of the bot is polling) raise `GusVoiceApiError`; everything else
+(network, 5xx, 400) is retried after a pause of 1 s growing to 30 s. Same rules as the TypeScript SDK `runPolling`.
+"""
+from __future__ import annotations
+
+import random
+import sys
+import threading
+import traceback
+from typing import TYPE_CHECKING, Any, Callable, Dict, Iterable, Optional
+
+from .errors import GusVoiceApiError
+
+if TYPE_CHECKING:
+    from .client import Client
+
+FATAL_CODES = frozenset({401, 403, 404, 409})
+RECONNECT_MIN_S = 1.0
+RECONNECT_MAX_S = 30.0
+
+
+def _default_on_error(update: Dict[str, Any], exc: BaseException) -> None:
+    print(f"gusvoice_bot: handler failed on update {update.get('update_id')}:", file=sys.stderr)
+    traceback.print_exception(type(exc), exc, exc.__traceback__, file=sys.stderr)
+
+
+def _log(message: str) -> None:
+    print(f"gusvoice_bot: {message}", file=sys.stderr)
+
+
+def run_polling(
+    client: "Client",
+    handler: Callable[[Dict[str, Any]], Any],
+    *,
+    timeout: int = 30,
+    limit: int = 100,
+    allowed_updates: Optional[Iterable[str]] = None,
+    on_error: Optional[Callable[[Dict[str, Any], BaseException], Any]] = None,
+    stop_event: Optional[threading.Event] = None,
+    log: Callable[[str], Any] = _log,
+) -> None:
+    """Receive updates until `stop_event` is set (or Ctrl+C) and call `handler(update)` for each.
+
+    `timeout` — seconds the server may hold one request (0-50). `getMe` is called first: a wrong token fails right away.
+    A long poll is not interrupted by `stop_event`: the loop stops when the current request returns (≤ `timeout` s).
+    On exit the handled updates are confirmed (`offset` without fetching anything new).
+    """
+    on_error = on_error or _default_on_error
+    wait = stop_event.wait if stop_event is not None else client._sleep
+    poll_timeout = min(max(int(timeout), 0), 50)
+    allowed = list(allowed_updates) if allowed_updates is not None else None
+    client.get_me()
+    last = 0  # update_id of the last handled update
+    backoff = RECONNECT_MIN_S
+    try:
+        while stop_event is None or not stop_event.is_set():
+            try:
+                updates = client.get_updates(
+                    offset=last + 1 if last > 0 else None, limit=limit, timeout=poll_timeout, allowed_updates=allowed
+                )
+                backoff = RECONNECT_MIN_S
+            except GusVoiceApiError as e:
+                if e.code in FATAL_CODES:
+                    if e.code == 409:
+                        log(f"stopped: {e.description}")
+                    raise
+                log(f"getUpdates failed ({e}), retry in {round(backoff)} s")
+                wait(backoff * (0.8 + random.random() * 0.4))
+                backoff = min(backoff * 2, RECONNECT_MAX_S)
+                continue
+            except Exception as e:  # network, timeout, garbage — try again later
+                log(f"getUpdates failed ({e!r}), retry in {round(backoff)} s")
+                wait(backoff * (0.8 + random.random() * 0.4))
+                backoff = min(backoff * 2, RECONNECT_MAX_S)
+                continue
+            for update in updates or []:
+                if stop_event is not None and stop_event.is_set():
+                    break
+                uid = update.get("update_id") if isinstance(update, dict) else None
+                if not isinstance(uid, (int, float)) or isinstance(uid, bool):
+                    continue
+                uid = int(uid)
+                if uid <= last:
+                    continue  # repeat of an already handled update
+                try:
+                    handler(update)
+                except Exception as exc:
+                    on_error(update, exc)  # re-raise here to stop without confirming this update
+                last = uid
+    finally:
+        if last > 0:
+            try:
+                # Confirm what was handled: an empty `allowed_updates` returns nothing but moves the offset.
+                client.get_updates(offset=last + 1, timeout=0, limit=1, allowed_updates=[])
+            except Exception:
+                pass
diff --git a/vendor/gusvoice_bot/py.typed b/vendor/gusvoice_bot/py.typed
new file mode 100644
index 0000000..e69de29
diff --git a/vendor/gusvoice_bot/webhook.py b/vendor/gusvoice_bot/webhook.py
new file mode 100644
index 0000000..90653a0
--- /dev/null
+++ b/vendor/gusvoice_bot/webhook.py
@@ -0,0 +1,133 @@
+# SPDX-License-Identifier: MIT
+"""Receiving updates on your own address (`setWebhook`).
+
+Every delivery carries `X-GusVoice-Signature: t=<unix seconds>,v1=<hex HMAC-SHA256(secret, t + "." + raw body)>`
+(the server side is `webhookSignature` in `packages/backend/src/bots/botRules.ts`). Check it on the RAW body, before
+parsing JSON: a re-serialized body does not keep the signature.
+"""
+from __future__ import annotations
+
+import hashlib
+import hmac
+import json
+import time
+from http.server import BaseHTTPRequestHandler
+from typing import Any, Callable, Dict, List, Optional, Tuple, Type, Union
+
+SIGNATURE_HEADER = "X-GusVoice-Signature"
+"""Header with the signature (header names are case-insensitive)."""
+DEFAULT_TOLERANCE_S = 300
+"""Signature time window, seconds: an older (or far future) delivery is a replay and is refused."""
+MAX_BODY_BYTES = 8 << 20
+"""Largest delivery body `webhook_handler` accepts."""
+
+
+def parse_signature_header(header: Optional[str]) -> Optional[Tuple[int, List[str]]]:
+    """`(t, [v1, ...])` from the header, or `None` if it is missing or malformed (several `v1` are allowed)."""
+    if not header or not isinstance(header, str):
+        return None
+    t: Optional[int] = None
+    v1: List[str] = []
+    for part in header.split(","):
+        k, sep, v = part.partition("=")
+        if not sep:
+            continue
+        k, v = k.strip(), v.strip()
+        if k == "t" and v.isascii() and v.isdigit() and 1 <= len(v) <= 12:
+            t = int(v)
+        elif k == "v1" and len(v) == 64 and all(c in "0123456789abcdefABCDEF" for c in v):
+            v1.append(v.lower())
+    return (t, v1) if t is not None and v1 else None
+
+
+def sign(secret: str, raw_body: Union[bytes, str], now: int) -> str:
+    """Header value the server would send for this body at `now` (for your tests)."""
+    body = raw_body.encode("utf-8") if isinstance(raw_body, str) else bytes(raw_body)
+    mac = hmac.new(secret.encode("utf-8"), str(now).encode("ascii") + b"." + body, hashlib.sha256).hexdigest()
+    return f"t={now},v1={mac}"
+
+
+def verify_signature(
+    secret: str,
+    header: Optional[str],
+    raw_body: Union[bytes, str],
+    tolerance: int = DEFAULT_TOLERANCE_S,
+    now: Optional[float] = None,
+) -> bool:
+    """`True` if the delivery is signed with `secret` and fresh (|now - t| <= `tolerance` seconds).
+
+    Comparison runs in constant time (`hmac.compare_digest`). Never raises on bad input: it just returns `False`.
+    """
+    if not secret or not isinstance(secret, str):
+        return False
+    sig = parse_signature_header(header)
+    if sig is None:
+        return False
+    t, candidates = sig
+    current = time.time() if now is None else now
+    if abs(current - t) > tolerance:
+        return False
+    body = raw_body.encode("utf-8") if isinstance(raw_body, str) else bytes(raw_body)
+    expected = hmac.new(secret.encode("utf-8"), str(t).encode("ascii") + b"." + body, hashlib.sha256).hexdigest()
+    ok = False
+    for v in candidates:
+        ok = hmac.compare_digest(expected, v) or ok
+    return ok
+
+
+def webhook_handler(
+    secret: str,
+    on_update: Callable[[Dict[str, Any]], Any],
+    path: str = "/",
+    tolerance: int = DEFAULT_TOLERANCE_S,
+) -> Type[BaseHTTPRequestHandler]:
+    """Request handler class for `http.server` (use `ThreadingHTTPServer`).
+
+    `POST <path>`: wrong signature -> 401, body larger than `MAX_BODY_BYTES` -> 413, not JSON -> 400; otherwise it
+    answers 200 right away and then calls `on_update(update)` for the update (or each one of a batch; keep the server fast: it waits for the answer).
+    Exceptions of `on_update` are printed and do not reach the server (the delivery is already acknowledged).
+    """
+
+    class _Handler(BaseHTTPRequestHandler):
+        def do_POST(self) -> None:  # noqa: N802 (http.server naming)
+            if self.path.split("?", 1)[0] != path:
+                self._reply(404, b"not found")
+                return
+            try:
+                length = int(self.headers.get("Content-Length") or "0")
+            except ValueError:
+                length = -1
+            if length < 0 or length > MAX_BODY_BYTES:
+                self._reply(413, b"too large")
+                return
+            raw = self.rfile.read(length)
+            if not verify_signature(secret, self.headers.get(SIGNATURE_HEADER), raw, tolerance):
+                self._reply(401, b"bad signature")
+                return
+            try:
+                update = json.loads(raw.decode("utf-8"))
+            except ValueError:
+                self._reply(400, b"bad json")
+                return
+            self._reply(200, b"ok")
+            # `setWebhook(batch=True)` delivers an array of updates in one request.
+            for u in update if isinstance(update, list) else [update]:
+                if not isinstance(u, dict):
+                    continue
+                try:
+                    on_update(u)
+                except Exception as e:  # the delivery is acknowledged; report and go on
+                    self.log_error("update handler failed: %r", e)
+
+        def do_GET(self) -> None:  # noqa: N802
+            self._reply(405, b"POST only")
+
+        def _reply(self, status: int, body: bytes) -> None:
+            self.send_response(status)
+            self.send_header("Content-Type", "text/plain; charset=utf-8")
+            self.send_header("Content-Length", str(len(body)))
+            self.end_headers()
+            self.wfile.write(body)
+            self.wfile.flush()
+
+    return _Handler