Merge branch 'develop' of gitea.bywaystudios.com:pet_home/pet_home_server into develop

src/server/game/admin.go

@@ -226,7 +226,12 @@ func ReqServerInfo(args []interface{}) error {
 	// 3. 获取 CPU 使用率（一秒内采样）
 	cpuPercent, err := cpu.Percent(time.Second, false)
 	if err == nil && len(cpuPercent) > 0 {
-		res["CPU"] = fmt.Sprintf("%.2f%%", cpuPercent[0])
+		res["CPU"] = cpuPercent[0]
+	}
+	if vmStat != nil {
+		res["FreeMem"] = vmStat.Available / (1024 * 1024)
+	} else {
+		res["FreeMem"] = 0
 	}
 	res["Version"] = conf.Server.Version
 	AdminPlayerBack(a, res)