docs: add host application usage guide for NanoKVM Pro

docs/hardware/en/kvm/NanoKVM_Pro/extended.md

@@ -515,6 +515,28 @@ echo "XXXX" > /boot/usb.product
 /kvmapp/scripts/usbdev.sh restart
 ```
 
+## How to Use with the Host Application
+
+The NanoKVM-Pro host application needs to be installed and run on the controlled PC. It provides additional functionality and a smoother user experience.
+
+It is recommended to install the precompiled Release version directly. The host application is still under development, and the source code will be open-sourced later for manual compilation.
+
+[Download Link](https://github.com/sipeed/NanoKVM-Pro/releases/tag/v1.0.5)
+
+After installation, launch the application and enter the local network IP address of the NanoKVM Pro you want to pair with. The application runs in the background and can be closed via a right-click on the system tray icon.
+
+Key Features
+
+- Automatically hide the controlled PC cursor for better remote control experience
+
+  - When the host application is connected to NanoKVM Pro, the cursor on the controlled PC is hidden.
+
+  - After the host application disconnects from NanoKVM Pro for a while, the cursor will reappear.
+
+- Collect CPU and memory usage of the controlled PC and transmit it to NanoKVM Pro
+
+  - In the Desk version, you can view the controlled PC status in real-time via the Host Info page.
+
 ## About Latency
 
 NanoKVM-Pro has made significant improvements in latency, with end-to-end latency controlled at around 100ms at any resolution.

docs/hardware/zh/kvm/NanoKVM_Pro/extended.md

@@ -413,6 +413,28 @@ echo "XXXX" > /boot/usb.product
 /kvmapp/scripts/usbdev.sh restart
 ```
 
+## 如何搭配上位机使用
+
+NanoKVM-Pro 的上位机应用程序，需要安装并运行在被控上位机中，为用户提供更多功能扩展与体验优化。
+
+推荐直接使用预编译好的 Release 版本 进行安装，目前上位机还在开发完善中，后续会开源源码以供自行编译。
+
+[下载地址](https://github.com/sipeed/NanoKVM-Pro/releases/tag/v1.0.5)
+
+安装完成后，启动应用程序，输入要配对的 NanoKVM Pro 的局域网 IP 地址进行确认即可。应用会在后台运行，可通过系统托盘图标右键关闭。
+
+主要功能
+
+- 自动隐藏被控机光标，提升远程控制体验
+
+  - 当上位机能连接到 NanoKVM Pro 时，会隐藏被控机光标
+
+  - 当上位机与 NanoKVM Pro 断开连接后一段时间后，光标会恢复显示
+
+- 采集被控机 CPU 与内存使用情况，并传输给 NanoKVM Pro
+
+  - 在 Desk 版本中，可通过 Host Info 页面实时查看被控机状态
+
 ## 关于延迟
 
 NanoKVM-Pro针对延迟进行了较大改进，任意分辨率下端到端延迟控制在100ms左右。