docs: clarify grok public route scope

README.md

@@ -589,9 +589,9 @@ Sub2API supports Grok subscription accounts through xAI OAuth and forwards OpenA
 
 - Platform name: `grok`
 - Account type: OAuth subscription accounts
-- Gateway target: `${XAI_BASE_URL:-https://api.x.ai/v1}/responses`
+- Public gateway target: `/v1/responses` and `/responses`, forwarded to `${XAI_BASE_URL:-https://api.x.ai/v1}/responses`
 - Initial models: `grok-4.3`, `grok-build-0.1`, `grok-4.20-0309-reasoning`, `grok-4.20-0309-non-reasoning`, and `grok-4.20-multi-agent-0309`
-- Out of scope for this provider: image, video, TTS, transcription, browser automation, cookies, and Grok web scraping
+- Out of scope for this provider: public Grok Chat Completions routes, image, video, TTS, transcription, browser automation, cookies, and Grok web scraping
 
 ### OAuth Configuration
 

frontend/src/i18n/locales/en.ts

@@ -3852,7 +3852,7 @@ export default {
           missingExchangeParams: 'Missing authorization code, state, or OAuth session',
           failedToExchangeCode: 'Failed to exchange Grok authorization code',
           failedToValidateRT: 'Failed to validate Grok refresh token',
-          oauthOnlyHint: 'Initial Grok support is OAuth subscription-backed text and reasoning traffic only.'
+          oauthOnlyHint: 'Initial Grok support is OAuth subscription-backed Responses API text and reasoning traffic only.'
         },
         // Gemini specific
 	        gemini: {

frontend/src/i18n/locales/zh.ts

@@ -4006,7 +4006,7 @@ export default {
           missingExchangeParams: '缺少授权码、state 或 OAuth 会话',
           failedToExchangeCode: 'Grok 授权码兑换失败',
           failedToValidateRT: '验证 Grok refresh token 失败',
-          oauthOnlyHint: '首版 Grok 支持仅包含 OAuth 订阅文本/推理转发。'
+          oauthOnlyHint: '首版 Grok 支持仅包含 OAuth 订阅的 Responses API 文本/推理转发。'
         },
         // Gemini specific
         gemini: {