update(JT/T 808): Add config "ignore_unsupported_frames"

Author: Meggielqk

en_US/gateway/jt808.md

@@ -151,6 +151,10 @@ On the Gateways page, locate **JT/T 808**. Click **Settings** in the **Actions**
 - **Authentication URL**: Specify the URL of an external service to authenticate clients. 
 - **Up Topic**: The MQTT topic pattern used for publishing messages from the gateway to EMQX. It defines how messages from JT/T 808 clients are mapped to MQTT topics for upstream communication. The default topic is: `jt808/${clientid}/${phone}/up`.
 - **Down Topic**: the MQTT topic pattern for messages that are sent from the broker to the gateway and then to JT/T 808 clients. It defines how messages from the MQTT broker are routed to the JT/T 808 clients for downstream communication. The default topic is: `jt808/${clientid}/${phone}/dn`.
+- **Ignore Unsupported Frames**: Determines how the gateway handles JT/T 808 frames that do not conform to the standard protocol.
+  - When set to `true`, the gateway logs unsupported frames but continues processing other valid messages, preventing disconnection due to custom or non-standard messages. The default value is `true`.
+  - When set to `false`, the gateway disconnects the client when receiving unsupported frames.
+
 - **Allow Anonymous**: This setting determines whether or not the gateway allows clients to connect without authentication. If set to `true`, clients can connect without providing authentication credentials.
 
 

zh_CN/gateway/jt808.md

@@ -149,6 +149,10 @@ JT/T 808 网关仅支持 TCP 类型的监听器，其完整可配置的参数列
 - **鉴权 URL**：指定用于客户端认证的外部服务的 URL。
 - **上行主题**：用于发布消息从网关到 EMQX 的 MQTT 主题模式。定义了 JT/T 808 客户端消息如何映射到 MQTT 主题进行上行通信。默认主题为：`jt808/${clientid}/${phone}/up`。
 - **下行主题**：用于从代理到网关再到 JT/T 808 客户端发送消息的 MQTT 主题模式。定义了 MQTT 代理的消息如何路由到 JT/T 808 客户端进行下行通信。默认主题为：`jt808/${clientid}/${phone}/dn`。
+- **忽略不支持的帧**：用于控制网关如何处理不符合标准协议的 JT/T 808 数据帧。
+  - 设置为 `true` 时，网关会记录不支持的帧，但仍然继续处理其他有效消息，从而避免因自定义或非标准消息导致设备断开连接。默认值为 `true`。
+  - 设置为 `false` 时，网关在收到不支持的帧时将断开客户端连接。
+
 - **允许匿名**：此设置决定网关是否允许客户端无需认证即可连接。如果设置为 `true`，客户端可以在不提供认证凭证的情况下连接。
 
 ### 添加监听器