feat: add sales_stats RBAC permission section to frontend

- Update route guard and menu item to use sales_stats:read
- Add sales_stats:read to marketer preset
- Add i18n translations for sales_stats section (ru, en, fa, zh)

src/locales/zh.json

@@ -2575,6 +2575,7 @@
           "users": "用户",
           "tickets": "工单",
           "stats": "统计",
+          "sales_stats": "销售统计",
           "broadcasts": "广播",
           "tariffs": "套餐",
           "promocodes": "促销码",