📝 docs(zh): update TASK_PRICE_PATCH description in environment variables guide

- Clarified the description for the `TASK_PRICE_PATCH` variable to specify that the model names should be separated by commas.
- Updated the example value to reflect the new model names.

Author: Calcium-Ion

content/docs/zh/installation/config-maintenance/environment-variables.mdx

@@ -110,7 +110,7 @@ title: 环境变量配置指南
 | `GET_MEDIA_TOKEN_NOT_STREAM` | 非流模式下是否统计图片token                          | `false` | `GET_MEDIA_TOKEN_NOT_STREAM=false`   |
 | `UPDATE_TASK`                | 是否更新异步任务(MJ、Suno)                           | `true`  | `UPDATE_TASK=false`                  |
 | `CountToken`                 | 是否统计文本token                                    | `true`  | `CountToken=false`                   |
-| `TASK_PRICE_PATCH`           | 任务价格补丁(逗号分隔)                               | `""`   | `TASK_PRICE_PATCH=suno=0.8,mj=1.2`   |
+| `TASK_PRICE_PATCH`           | 任务价格补丁，设置的模型仅按次计费，模型名用英文逗号`,`隔开                              | `""`   | `TASK_PRICE_PATCH=sora-2,sora-2-pro`   |
 
 
 ## 特定模型配置