fix: 修复codex 客户端问题

src/routes/openaiRoutes.js

@@ -258,9 +258,9 @@ const handleResponses = async (req, res) => {
     const isStream = req.body?.stream !== false // 默认为流式（兼容现有行为）
 
     // 判断是否为 Codex CLI 的请求
-    const isCodexCLI = req.body?.instructions?.startsWith(
-      'You are a coding agent running in the Codex CLI'
-    )
+    const isCodexCLI =
+      req.body?.instructions?.startsWith('You are a coding agent running in the Codex CLI') ||
+      req.body?.instructions?.startsWith('You are Codex')
 
     // 如果不是 Codex CLI 请求，则进行适配
     if (!isCodexCLI) {