feat: add referral network graph visualization page

Interactive Sigma.js + graphology graph with ForceAtlas2 web worker
layout, campaign/user node coloring, filters via nodeReducer pattern,
search highlighting, user/campaign detail side panels, and 4-locale
translations. Dependencies: sigma v3, graphology, graphology-layout-forceatlas2.

src/locales/en.json

@@ -1106,7 +1106,8 @@
       "policies": "Access Policies",
       "auditLog": "Audit Log",
       "salesStats": "Sales Statistics",
-      "landings": "Landings"
+      "landings": "Landings",
+      "referralNetwork": "Referral Network"
     },
     "panel": {
       "title": "Admin Panel",
@@ -1140,7 +1141,8 @@
       "policiesDesc": "Configure ABAC access policies",
       "auditLogDesc": "Review system activity and access history",
       "salesStatsDesc": "Sales analytics and trends",
-      "landingsDesc": "Quick purchase landing pages"
+      "landingsDesc": "Quick purchase landing pages",
+      "referralNetworkDesc": "Referral graph and campaign visualization"
     },
     "salesStats": {
       "title": "Sales Statistics",
@@ -1222,6 +1224,77 @@
       },
       "loadError": "Failed to load statistics"
     },
+    "referralNetwork": {
+      "title": "Referral Network",
+      "subtitle": "Referral graph and advertising campaign visualization",
+      "search": {
+        "placeholder": "Search by TG ID, @username, email, campaign...",
+        "noResults": "Nothing found",
+        "resultsCount": "Found: {{count}}",
+        "clear": "Clear search"
+      },
+      "filters": {
+        "title": "Filters",
+        "campaigns": "Campaigns",
+        "partnersOnly": "Partners only",
+        "minReferrals": "Min referrals",
+        "reset": "Reset"
+      },
+      "stats": {
+        "totalUsers": "Users",
+        "totalReferrers": "Referrers",
+        "totalCampaigns": "Campaigns",
+        "totalEarnings": "Total earnings"
+      },
+      "legend": {
+        "title": "Legend",
+        "regularUser": "Regular user",
+        "activeReferrer": "Active referrer",
+        "partner": "Partner",
+        "topReferrer": "Top referrer (10+)",
+        "campaignUser": "From campaign",
+        "campaignNode": "Ad campaign"
+      },
+      "user": {
+        "tgId": "TG ID",
+        "email": "Email",
+        "partner": "Partner",
+        "subscription": "Subscription",
+        "validUntil": "until {{date}}",
+        "noSubscription": "No subscription",
+        "personalStats": "Personal statistics",
+        "totalSpent": "Total spent",
+        "referralEarnings": "Referral earnings",
+        "referralBranch": "Referral branch",
+        "directReferrals": "Direct referrals",
+        "branchSize": "Total in branch",
+        "branchRevenue": "Branch revenue",
+        "source": "Source",
+        "referredBy": "Referred by",
+        "fromCampaign": "Campaign",
+        "organic": "Organic"
+      },
+      "campaign": {
+        "startParam": "Parameter",
+        "active": "Active",
+        "inactive": "Inactive",
+        "directUsers": "Direct",
+        "totalNetwork": "Total network",
+        "totalRevenue": "Total revenue",
+        "conversionRate": "Conversion",
+        "avgCheck": "Avg check",
+        "topReferrers": "Top referrers from campaign"
+      },
+      "controls": {
+        "zoomIn": "Zoom in",
+        "zoomOut": "Zoom out",
+        "resetZoom": "Reset zoom",
+        "fullscreen": "Fullscreen"
+      },
+      "loading": "Loading graph...",
+      "error": "Failed to load network data",
+      "empty": "No data to display"
+    },
     "trafficUsage": {
       "title": "Traffic Usage",
       "subtitle": "Per-user traffic statistics by nodes",

src/locales/fa.json

@@ -940,7 +940,8 @@
       "policies": "سیاست‌های دسترسی",
       "auditLog": "گزارش بازرسی",
       "salesStats": "آمار فروش",
-      "landings": "صفحات فرود"
+      "landings": "صفحات فرود",
+      "referralNetwork": "شبکه ارجاع"
     },
     "panel": {
       "title": "پنل مدیریت",
@@ -974,7 +975,8 @@
       "policiesDesc": "تنظیم سیاست‌های کنترل دسترسی ABAC",
       "auditLogDesc": "بررسی فعالیت سیستم و تاریخچه دسترسی",
       "salesStatsDesc": "تحلیل فروش و روندها",
-      "landingsDesc": "صفحات خرید سریع"
+      "landingsDesc": "صفحات خرید سریع",
+      "referralNetworkDesc": "نمایش بصری گراف ارجاعات و کمپین‌ها"
     },
     "salesStats": {
       "title": "آمار فروش",
@@ -1056,6 +1058,77 @@
       },
       "loadError": "بارگذاری آمار ناموفق بود"
     },
+    "referralNetwork": {
+      "title": "شبکه ارجاع",
+      "subtitle": "نمایش بصری گراف ارجاعات و کمپین‌های تبلیغاتی",
+      "search": {
+        "placeholder": "جستجو بر اساس TG ID، @نام‌کاربری، ایمیل، کمپین...",
+        "noResults": "نتیجه‌ای یافت نشد",
+        "resultsCount": "یافت شد: {{count}}",
+        "clear": "پاک کردن جستجو"
+      },
+      "filters": {
+        "title": "فیلترها",
+        "campaigns": "کمپین‌ها",
+        "partnersOnly": "فقط شرکا",
+        "minReferrals": "حداقل ارجاعات",
+        "reset": "بازنشانی"
+      },
+      "stats": {
+        "totalUsers": "کاربران",
+        "totalReferrers": "ارجاع‌دهندگان",
+        "totalCampaigns": "کمپین‌ها",
+        "totalEarnings": "درآمد کل"
+      },
+      "legend": {
+        "title": "راهنما",
+        "regularUser": "کاربر عادی",
+        "activeReferrer": "ارجاع‌دهنده فعال",
+        "partner": "شریک",
+        "topReferrer": "ارجاع‌دهنده برتر (+۱۰)",
+        "campaignUser": "از کمپین",
+        "campaignNode": "کمپین تبلیغاتی"
+      },
+      "user": {
+        "tgId": "شناسه TG",
+        "email": "ایمیل",
+        "partner": "شریک",
+        "subscription": "اشتراک",
+        "validUntil": "تا {{date}}",
+        "noSubscription": "بدون اشتراک",
+        "personalStats": "آمار شخصی",
+        "totalSpent": "مجموع پرداختی",
+        "referralEarnings": "درآمد ارجاع",
+        "referralBranch": "شاخه ارجاع",
+        "directReferrals": "ارجاعات مستقیم",
+        "branchSize": "کل شاخه",
+        "branchRevenue": "درآمد شاخه",
+        "source": "منبع",
+        "referredBy": "معرفی شده توسط",
+        "fromCampaign": "کمپین",
+        "organic": "طبیعی"
+      },
+      "campaign": {
+        "startParam": "پارامتر",
+        "active": "فعال",
+        "inactive": "غیرفعال",
+        "directUsers": "مستقیم",
+        "totalNetwork": "کل شبکه",
+        "totalRevenue": "درآمد کل",
+        "conversionRate": "نرخ تبدیل",
+        "avgCheck": "میانگین مبلغ",
+        "topReferrers": "ارجاع‌دهندگان برتر کمپین"
+      },
+      "controls": {
+        "zoomIn": "بزرگ‌نمایی",
+        "zoomOut": "کوچک‌نمایی",
+        "resetZoom": "بازنشانی زوم",
+        "fullscreen": "تمام‌صفحه"
+      },
+      "loading": "بارگذاری گراف...",
+      "error": "خطا در بارگذاری داده‌های شبکه",
+      "empty": "داده‌ای برای نمایش وجود ندارد"
+    },
     "trafficUsage": {
       "title": "مصرف ترافیک",
       "subtitle": "آمار ترافیک کاربران بر اساس نودها",

src/locales/ru.json

@@ -1127,7 +1127,8 @@
       "policies": "Политики доступа",
       "auditLog": "Журнал аудита",
       "salesStats": "Статистика продаж",
-      "landings": "Лендинги"
+      "landings": "Лендинги",
+      "referralNetwork": "Реферальная сеть"
     },
     "panel": {
       "title": "Панель администратора",
@@ -1161,7 +1162,8 @@
       "policiesDesc": "Настройка политик контроля доступа ABAC",
       "auditLogDesc": "Просмотр активности системы и истории доступа",
       "salesStatsDesc": "Аналитика продаж и тренды",
-      "landingsDesc": "Страницы быстрой покупки"
+      "landingsDesc": "Страницы быстрой покупки",
+      "referralNetworkDesc": "Визуализация графа рефералов и РК"
     },
     "salesStats": {
       "title": "Статистика продаж",
@@ -1243,6 +1245,77 @@
       },
       "loadError": "Не удалось загрузить статистику"
     },
+    "referralNetwork": {
+      "title": "Реферальная сеть",
+      "subtitle": "Визуализация графа рефералов и рекламных кампаний",
+      "search": {
+        "placeholder": "Поиск по TG ID, @username, email, кампании...",
+        "noResults": "Ничего не найдено",
+        "resultsCount": "Найдено: {{count}}",
+        "clear": "Очистить поиск"
+      },
+      "filters": {
+        "title": "Фильтры",
+        "campaigns": "Кампании",
+        "partnersOnly": "Только партнёры",
+        "minReferrals": "Мин. рефералов",
+        "reset": "Сбросить"
+      },
+      "stats": {
+        "totalUsers": "Пользователей",
+        "totalReferrers": "Рефереров",
+        "totalCampaigns": "Кампаний",
+        "totalEarnings": "Общий доход"
+      },
+      "legend": {
+        "title": "Легенда",
+        "regularUser": "Обычный",
+        "activeReferrer": "Активный реферер",
+        "partner": "Партнёр",
+        "topReferrer": "Топ-реферер (10+)",
+        "campaignUser": "Из кампании",
+        "campaignNode": "Рекламная кампания"
+      },
+      "user": {
+        "tgId": "TG ID",
+        "email": "Email",
+        "partner": "Партнёр",
+        "subscription": "Подписка",
+        "validUntil": "до {{date}}",
+        "noSubscription": "Нет подписки",
+        "personalStats": "Личная статистика",
+        "totalSpent": "Оплачено всего",
+        "referralEarnings": "Реф. доход",
+        "referralBranch": "Реферальная ветка",
+        "directReferrals": "Привёл людей",
+        "branchSize": "Всего в ветке",
+        "branchRevenue": "Доход ветки",
+        "source": "Источник",
+        "referredBy": "Пришёл от",
+        "fromCampaign": "РК",
+        "organic": "Органический"
+      },
+      "campaign": {
+        "startParam": "Параметр",
+        "active": "Активна",
+        "inactive": "Неактивна",
+        "directUsers": "Напрямую",
+        "totalNetwork": "Вся сеть",
+        "totalRevenue": "Общий доход",
+        "conversionRate": "Конверсия",
+        "avgCheck": "Средний чек",
+        "topReferrers": "Топ-рефереры из кампании"
+      },
+      "controls": {
+        "zoomIn": "Приблизить",
+        "zoomOut": "Отдалить",
+        "resetZoom": "Сбросить зум",
+        "fullscreen": "Полный экран"
+      },
+      "loading": "Загрузка графа...",
+      "error": "Ошибка загрузки данных сети",
+      "empty": "Нет данных для отображения"
+    },
     "trafficUsage": {
       "title": "Расход трафика",
       "subtitle": "Статистика трафика по пользователям и нодам",

src/locales/zh.json

@@ -940,7 +940,8 @@
       "policies": "访问策略",
       "auditLog": "审计日志",
       "salesStats": "销售统计",
-      "landings": "落地页"
+      "landings": "落地页",
+      "referralNetwork": "推荐网络"
     },
     "panel": {
       "title": "管理面板",
@@ -974,7 +975,8 @@
       "policiesDesc": "配置ABAC访问控制策略",
       "auditLogDesc": "查看系统活动和访问历史",
       "salesStatsDesc": "销售分析与趋势",
-      "landingsDesc": "快速购买落地页"
+      "landingsDesc": "快速购买落地页",
+      "referralNetworkDesc": "推荐图表和广告活动可视化"
     },
     "salesStats": {
       "title": "销售统计",
@@ -1056,6 +1058,77 @@
       },
       "loadError": "加载统计失败"
     },
+    "referralNetwork": {
+      "title": "推荐网络",
+      "subtitle": "推荐图表和广告活动可视化",
+      "search": {
+        "placeholder": "按TG ID、@用户名、邮箱、活动搜索...",
+        "noResults": "未找到",
+        "resultsCount": "找到: {{count}}",
+        "clear": "清除搜索"
+      },
+      "filters": {
+        "title": "过滤器",
+        "campaigns": "活动",
+        "partnersOnly": "仅合作伙伴",
+        "minReferrals": "最少推荐数",
+        "reset": "重置"
+      },
+      "stats": {
+        "totalUsers": "用户",
+        "totalReferrers": "推荐人",
+        "totalCampaigns": "活动",
+        "totalEarnings": "总收入"
+      },
+      "legend": {
+        "title": "图例",
+        "regularUser": "普通用户",
+        "activeReferrer": "活跃推荐人",
+        "partner": "合作伙伴",
+        "topReferrer": "顶级推荐人 (10+)",
+        "campaignUser": "来自活动",
+        "campaignNode": "广告活动"
+      },
+      "user": {
+        "tgId": "TG ID",
+        "email": "邮箱",
+        "partner": "合作伙伴",
+        "subscription": "订阅",
+        "validUntil": "有效至 {{date}}",
+        "noSubscription": "无订阅",
+        "personalStats": "个人统计",
+        "totalSpent": "总花费",
+        "referralEarnings": "推荐收入",
+        "referralBranch": "推荐分支",
+        "directReferrals": "直接推荐",
+        "branchSize": "分支总人数",
+        "branchRevenue": "分支收入",
+        "source": "来源",
+        "referredBy": "由...推荐",
+        "fromCampaign": "活动",
+        "organic": "自然流量"
+      },
+      "campaign": {
+        "startParam": "参数",
+        "active": "活跃",
+        "inactive": "非活跃",
+        "directUsers": "直接",
+        "totalNetwork": "总网络",
+        "totalRevenue": "总收入",
+        "conversionRate": "转化率",
+        "avgCheck": "平均金额",
+        "topReferrers": "活动顶级推荐人"
+      },
+      "controls": {
+        "zoomIn": "放大",
+        "zoomOut": "缩小",
+        "resetZoom": "重置缩放",
+        "fullscreen": "全屏"
+      },
+      "loading": "加载图表...",
+      "error": "加载网络数据失败",
+      "empty": "无数据显示"
+    },
     "trafficUsage": {
       "title": "流量使用",
       "subtitle": "按节点的用户流量统计",