Add proper plural forms for all localized strings

- Russian: add _one/_few/_many forms for proper declension
- English: add _one/_other forms for singular/plural
- Chinese: add _other form (no plural changes in Chinese)
- Farsi: add _other form (no plural changes in Farsi)

Fixed plural forms for:
- purchaseCount, registrations, subscriptions, tariffs
- device limits, members, hours, templates
- offers, notifications, promocodes, groups
- showMore and other count-based strings

src/locales/zh.json

@@ -303,7 +303,7 @@
     "additionalOptions": {
       "title": "附加选项",
       "buyDevices": "购买更多设备",
-      "currentDeviceLimit": "当前限制：{{count}} 台设备",
+      "currentDeviceLimit_other": "当前限制：{{count}} 台设备",
       "maxDevices": "最多 {{count}} 台",
       "devicesUnavailable": "设备购买不可用",
       "devicesUnit": "台设备",
@@ -1205,7 +1205,7 @@
       },
       "table": {
         "inactive": "未激活",
-        "registrations": "{{count}} 次注册",
+        "registrations_other": "{{count}} 次注册",
         "revenue": "{{amount}} 收入",
         "conversion": "{{rate}}% 转化",
         "statistics": "统计",
@@ -1251,8 +1251,8 @@
         "paidUsers": "已付费",
         "conversion": "转化率",
         "bonusesIssued": "已发放奖励",
-        "subscriptionsIssued": "{{count}} 个订阅",
-        "tariffsIssued": "{{count}} 个套餐",
+        "subscriptionsIssued_other": "{{count}} 个订阅",
+        "tariffsIssued_other": "{{count}} 个套餐",
         "avgRevenuePerUser": "每用户平均收入",
         "avgFirstPayment": "平均首次付款",
         "trialSubscriptions": "试用订阅",
@@ -1304,8 +1304,8 @@
       "until": "有效期至",
       "discountForHours": "-{{percent}}% {{hours}}小时",
       "tabs": {
-        "promocodes": "促销码 ({{count}})",
-        "groups": "折扣组 ({{count}})"
+        "promocodes_other": "促销码 ({{count}})",
+        "groups_other": "折扣组 ({{count}})"
       },
       "type": {
         "balance": "余额",
@@ -1363,7 +1363,7 @@
         "daysLabel": "天数",
         "discountLabel": "折扣",
         "validFor": "有效期",
-        "hoursValue": "{{count}} 小时",
+        "hoursValue_other": "{{count}} 小时",
         "limit": "限制",
         "status": "状态",
         "active": "活跃",
@@ -1404,7 +1404,7 @@
         "default": "默认",
         "daysShort": "{{days}} 天",
         "autoFrom": "自动 从 {{amount}} 卢布",
-        "members": "{{count}} 名成员"
+        "members_other": "{{count}} 名成员"
       },
       "confirm": {
         "deletePromocode": "删除促销码？",
@@ -1476,7 +1476,7 @@
       "search": "按ID、姓名、用户名搜索...",
       "searchEmail": "按邮箱搜索...",
       "noData": "未找到用户",
-      "purchaseCount": "{{count}} 次购买",
+      "purchaseCount_other": "{{count}} 次购买",
       "noPurchases": "无购买记录",
       "stats": {
         "total": "总计",
@@ -1587,7 +1587,7 @@
       "subtitle": "模板、群发和优惠日志",
       "sendButton": "发送",
       "tabs": {
-        "templates": "模板 ({{count}})",
+        "templates_other": "模板 ({{count}})",
         "logs": "日志"
       },
       "noData": {
@@ -1638,8 +1638,8 @@
       },
       "result": {
         "sentTitle": "已发送！",
-        "offersCreated": "已创建优惠: {{count}}",
-        "notificationsSent": "已发送通知: {{count}}",
+        "offersCreated_other": "已创建优惠: {{count}}",
+        "notificationsSent_other": "已发送通知: {{count}}",
         "notificationsFailed": "（失败: {{count}}）",
         "sendError": "发送优惠失败"
       },
@@ -1826,7 +1826,7 @@
       "enable": "启用",
       "disable": "禁用",
       "hide": "隐藏 ({{count}})",
-      "showMore": "显示更多 {{count}} 个节点"
+      "showMore_other": "显示更多 {{count}} 个节点"
     },
     "revenue": {
       "title": "收入",