docs: refine language switch links

README.md

@@ -1,6 +1,6 @@
 # PIGWay Device Agent v3.7.0
 
-[English](README.md) | [简体中文](README.zh-CN.md)
+[简体中文](README.zh-CN.md) | English
 
 
 PIGWay Device Agent is a lightweight local monitoring service for Raspberry Pi and Linux. It monitors CPU, memory, temperature, disk, networking, services, processes, system health alerts, and journal events. It has no embedded Web UI and does not require a hardware plugin or Device Console.

README.zh-CN.md

@@ -1,6 +1,6 @@
 # PIGWay Device Agent v3.7.0
 
-[English](README.md) | [简体中文](README.zh-CN.md)
+简体中文 | [English](README.md)
 
 
 极轻的 Raspberry Pi / Linux 本地监控服务：CPU、内存、温度、磁盘、网络、服务/进程、系统健康告警与 journal 日志。无 Web 界面；无需硬件插件，也无需管理中心。

SHA256SUMS

@@ -1,5 +1,5 @@
-a402ee9f0c16432cd51a680215bb7424133984ecefa19775788418020a17e6d5  README.md
-4215fd79e1838b250d7bd8ae727d22b92aaaad61e592523a8307d7f90921d04f  README.zh-CN.md
+7ed31dd9c626c8d3b576fb7976e7c75f2ed1e6f32cbc73c517e608831e440c6e  README.md
+ddb6c2fb89001f0a7c2736534cc0b125ee4563ea2fc4f8d001752f5866f81e6f  README.zh-CN.md
 0f1ebcb0e9fa63744fcf0c0045fe4db3fa6eedcf22c333b46d6079d9105fad5c  app/pigway_pi_control.py
 f91af58e7dd752fa97c168ae419e14e6ee5099ea58d8252568f7ce72affd219f  app/pigway_pi_control_api.py
 3a8a368bbf299eb2d6cccc968a4aacf070058bddebdc5176083a97ac579d720d  app/plugin_api.py