✨ feat: add limited offer & original price locale keys for top-up (#15415)

locales/zh-CN/subscription.json

@@ -92,7 +92,9 @@
   "credits.topUp.cancel": "取消",
   "credits.topUp.custom": "自定义",
   "credits.topUp.freeFeeHint": "免费计划充值每百万积分包含 {{fee}} 手续费。",
+  "credits.topUp.limitedOffer": "🔥 限时",
   "credits.topUp.maxAmountError": "单次购买金额不能超过 ${{max}}",
+  "credits.topUp.originalPriceFormat": "原价 ${{price}}",
   "credits.topUp.purchaseError": "购买失败，请稍后重试",
   "credits.topUp.purchaseNow": "立即购买",
   "credits.topUp.selectPackage": "选择积分包",
@@ -103,6 +105,7 @@
   "credits.topUp.total": "总计",
   "credits.topUp.unitPrice": "单价",
   "credits.topUp.unitPriceFormat": "${{price}} / 每百万 {{creditLabel}}",
+  "credits.topUp.unitPriceSuffix": "/ 每百万 {{creditLabel}}",
   "credits.topUp.upgradePrefix": "升级至",
   "credits.topUp.upgradeSuffix": "可节省 ${{savings}}",
   "credits.topUp.validityInfo": "有效期 {{months}} 个月",