feat: multi-select scope for referral network graph

Replace single-select scope with multi-select supporting multiple
campaigns, partners, and users simultaneously. Chips UI with remove
buttons, clear-all, sorted query keys for cache stability.

src/locales/en.json

@@ -1306,7 +1306,10 @@
         "campaigns": "campaigns",
         "active": "Active",
         "inactive": "Inactive",
-        "noResults": "Nothing found"
+        "noResults": "Nothing found",
+        "removeItem": "Remove {{label}}",
+        "clearAll": "Clear all selections",
+        "addScope": "Add scope"
       },
       "loading": "Loading graph...",
       "error": "Failed to load network data",

src/locales/fa.json

@@ -1140,7 +1140,10 @@
         "campaigns": "کمپین‌ها",
         "active": "فعال",
         "inactive": "غیرفعال",
-        "noResults": "نتیجه‌ای یافت نشد"
+        "noResults": "نتیجه‌ای یافت نشد",
+        "removeItem": "حذف {{label}}",
+        "clearAll": "پاک کردن همه انتخاب‌ها",
+        "addScope": "افزودن محدوده"
       },
       "loading": "بارگذاری گراف...",
       "error": "خطا در بارگذاری داده‌های شبکه",

src/locales/ru.json

@@ -1327,7 +1327,10 @@
         "campaigns": "кампаний",
         "active": "Активна",
         "inactive": "Неактивна",
-        "noResults": "Ничего не найдено"
+        "noResults": "Ничего не найдено",
+        "removeItem": "Удалить {{label}}",
+        "clearAll": "Очистить все выбранные",
+        "addScope": "Добавить область"
       },
       "loading": "Загрузка графа...",
       "error": "Ошибка загрузки данных сети",

src/locales/zh.json

@@ -1140,7 +1140,10 @@
         "campaigns": "活动",
         "active": "活跃",
         "inactive": "非活跃",
-        "noResults": "未找到"
+        "noResults": "未找到",
+        "removeItem": "移除 {{label}}",
+        "clearAll": "清除所有选择",
+        "addScope": "添加范围"
       },
       "loading": "加载图表...",
       "error": "加载网络数据失败",