📝 docs: update model-provider document (#4181)

* Update model-provider.zh-CN.mdx

增加混元模型

* Update model-provider.mdx

add HUNYUAN Model

docs/self-hosting/environment-variables/model-provider.mdx

@@ -479,4 +479,20 @@ If you need to use Azure OpenAI to provide model services, you can refer to the
 - Default: -
 - Example: `xxxxxx...xxxxxx`
 
+## HUNYUAN
+
+### `HUNYUAN_API_KEY`
+
+- Type: Required
+- Description: This is the API key you applied from HUNYUAN service
+- Default: -
+- Example: `xxxxxx...xxxxxx`
+
+### `HUNYUAN_MODEL_LIST`
+
+- Type: Optional
+- Description: Used to control the model list, use `+` to add a model, use `-` to hide a model, use `model_name=display_name` to customize the display name of a model, separated by commas. Definition syntax rules see [model-list][model-list]
+- Default: `-`
+- Example: `-all,+hunyuan-lite,+hunyuan-standard`
+
 [model-list]: /docs/self-hosting/advanced/model-list

docs/self-hosting/environment-variables/model-provider.zh-CN.mdx

@@ -477,4 +477,20 @@ LobeChat 在部署时提供了丰富的模型服务商相关的环境变量，
 - 默认值：-
 - 示例：`xxxxxx...xxxxxx`
 
+## 腾讯混元
+
+### `HUNYUAN_API_KEY`
+
+- 类型：必选
+- 描述：这是你在 腾讯混元 服务中申请的 API 密钥
+- 默认值：-
+- 示例：`xxxxxx...xxxxxx`
+
+### `HUNYUAN_MODEL_LIST`
+
+- 类型：可选
+- 描述：用来控制模型列表，使用 `+` 增加一个模型，使用 `-` 来隐藏一个模型，使用 `模型名=展示名<扩展配置>` 来自定义模型的展示名，用英文逗号隔开。模型定义语法规则见 [模型列表][model-list]
+- 默认值：`-`
+- 示例：`-all,+hunyuan-lite,+hunyuan-standard`
+
 [model-list]: /zh/docs/self-hosting/advanced/model-list