修改默认模型

@@ -2,7 +2,6 @@
 namespace App\Services;
 namespace App\Services;
 
 
 /**
 /**
- * https://gemini.google.com/app
  * Class AiCommandService
  * Class AiCommandService
  * @package App\Services
  * @package App\Services
  */
  */
@@ -14,7 +13,7 @@ class AiCommandService
 
 
     /**
     /**
      * @var string gemini 模型
      * @var string gemini 模型
-     *
+     * https://gemini.google.com/app
      * gemini-2.0-flash-lite
      * gemini-2.0-flash-lite
      * gemini-2.5-pro-preview-05-06
      * gemini-2.5-pro-preview-05-06
      * gemini-2.5-flash-preview-05-20
      * gemini-2.5-flash-preview-05-20