feat: add web campaign links — capture, auth integration, bonus UI

- Add campaign.ts utility (capture from URL, localStorage with TTL, validation)
- Pass campaign_slug in all auth API methods (telegram, widget, email, oauth)
- Consume slug in auth store login methods, set pendingCampaignBonus state
- Add CampaignBonusNotifier component (toast on bonus, mounted in AppShell)
- Show web_link alongside bot deep_link in AdminCampaignStats
- Add CampaignBonusInfo type with union bonus_type
- Fix VerifyEmail: ref guard against StrictMode double-fire, setTimeout cleanup
- Fix AdminCampaignStats: setTimeout refs with cleanup, i18n-aware locale
- Wrap all localStorage access in try/catch (Safari private browsing safety)
- Add campaignBonus translations (ru/en/fa/zh)

src/locales/en.json

@@ -70,6 +70,12 @@
     "newUserReply": "User replied in ticket: {{title}}",
     "newUserReplyTitle": "User Reply"
   },
+  "campaignBonus": {
+    "title": "Bonus activated!",
+    "balance": "You received {{amount}} RUB from campaign \"{{name}}\"",
+    "subscription": "You received a {{days}}-day subscription from campaign \"{{name}}\"",
+    "tariff": "You received tariff \"{{tariff}}\" from campaign \"{{name}}\""
+  },
   "wsNotifications": {
     "balance": {
       "topupTitle": "Balance topped up",
@@ -1684,6 +1690,8 @@
         "inactive": "Inactive",
         "copy": "Copy",
         "copied": "Copied!",
+        "botLink": "Bot link",
+        "webLink": "Web link",
         "users": "Users",
         "noUsers": "No registered users",
         "paid": "Paid",

src/locales/fa.json

@@ -64,6 +64,12 @@
     "newUserReply": "کاربر در تیکت پاسخ داد: {{title}}",
     "newUserReplyTitle": "پاسخ کاربر"
   },
+  "campaignBonus": {
+    "title": "!پاداش فعال شد",
+    "balance": "شما {{amount}} روبل از کمپین «{{name}}» دریافت کردید",
+    "subscription": "شما اشتراک {{days}} روزه از کمپین «{{name}}» دریافت کردید",
+    "tariff": "شما تعرفه «{{tariff}}» از کمپین «{{name}}» دریافت کردید"
+  },
   "wsNotifications": {
     "balance": {
       "topupTitle": "موجودی شارژ شد",
@@ -1421,6 +1427,8 @@
         "inactive": "غیرفعال",
         "copy": "کپی",
         "copied": "کپی شد!",
+        "botLink": "لینک ربات",
+        "webLink": "لینک وب",
         "users": "کاربران",
         "noUsers": "کاربر ثبت‌نام شده‌ای وجود ندارد",
         "paid": "پرداخت کرده",

src/locales/ru.json

@@ -73,6 +73,12 @@
     "newUserReply": "Ответ пользователя в тикете: {{title}}",
     "newUserReplyTitle": "Ответ пользователя"
   },
+  "campaignBonus": {
+    "title": "Бонус активирован!",
+    "balance": "Вам начислено {{amount}} руб. по акции «{{name}}»",
+    "subscription": "Вам предоставлена подписка на {{days}} дн. по акции «{{name}}»",
+    "tariff": "Вам предоставлен тариф «{{tariff}}» по акции «{{name}}»"
+  },
   "wsNotifications": {
     "balance": {
       "topupTitle": "Баланс пополнен",
@@ -2206,6 +2212,8 @@
         "inactive": "Неактивна",
         "copy": "Копировать",
         "copied": "Скопировано!",
+        "botLink": "Ссылка для бота",
+        "webLink": "Веб-ссылка",
         "users": "Пользователи",
         "noUsers": "Нет зарегистрированных пользователей",
         "paid": "Платил",

src/locales/zh.json

@@ -64,6 +64,12 @@
     "newUserReply": "用户回复了工单：{{title}}",
     "newUserReplyTitle": "用户回复"
   },
+  "campaignBonus": {
+    "title": "奖励已激活！",
+    "balance": "您从活动「{{name}}」获得了 {{amount}} 卢布",
+    "subscription": "您从活动「{{name}}」获得了 {{days}} 天订阅",
+    "tariff": "您从活动「{{name}}」获得了套餐「{{tariff}}」"
+  },
   "wsNotifications": {
     "balance": {
       "topupTitle": "余额已充值",
@@ -1420,6 +1426,8 @@
         "inactive": "未激活",
         "copy": "复制",
         "copied": "已复制！",
+        "botLink": "机器人链接",
+        "webLink": "网页链接",
         "users": "用户",
         "noUsers": "没有注册用户",
         "paid": "已付费",