Merge pull request #875 from mt21625457/fix/openai-fast-billing-clean

fix(billing): 修复 OpenAI fast 档位计费并补齐展示

frontend/src/i18n/locales/zh.ts

@@ -731,8 +731,15 @@ export default {
     unknown: '未知',
     in: '输入',
     out: '输出',
+    inputTokenPrice: '输入单价',
+    outputTokenPrice: '输出单价',
+    perMillionTokens: '/ 1M Token',
     cacheRead: '读取',
     cacheWrite: '写入',
+    serviceTier: '服务档位',
+    serviceTierPriority: 'Fast',
+    serviceTierFlex: 'Flex',
+    serviceTierStandard: 'Standard',
     rate: '倍率',
     original: '原始',
     billed: '计费',