fix: 网元激活码多行行内容提取

src/modules/network_element/service/ne_license.go

@@ -136,7 +136,13 @@ func (r *NeLicense) ReadLicenseInfo(neLicense model.NeLicense) (string, string)
 	if err = sftpClient.CopyFileRemoteToLocal(nePath+"/system.ini", omcPath+"/system.ini"); err == nil {
 		licensePath = omcPath + "/system.ini"
 	}
-	return strings.TrimSpace(string(bytes)), licensePath
+
+	activationRequestCode := string(bytes)
+	parts := strings.Split(activationRequestCode, "\n")
+	if len(parts) > 1 && strings.HasPrefix(parts[0], "SN") {
+		activationRequestCode = parts[1] // 获取第二行内容
+	}
+	return strings.TrimSpace(activationRequestCode), licensePath
 }
 
 // UploadLicense 授权文件上传到网元主机