Update constant.ts

添加免费的Gemini 2.5 Pro进行使用

app/constant.ts

@@ -555,6 +555,7 @@ const googleModels = [
   "gemini-2.0-pro-exp",
   "gemini-2.0-pro-exp-02-05",
   "gemini-2.5-pro-preview-06-05",
+  "Gemini-2.5-Pro"
 ];
 
 const anthropicModels = [